A system to detect and control noise in seismic surveys is provided. The system receives, responsive to a seismic wave generated by a source, seismic data detected by a sensor component of a seismic data acquisition unit. The system generates, for windows of the seismic data, Hough tensors for seismic data transforms in multiple dimensions. The system detects, based on a comparison of an eigenvector and eigenvalue of a canonical matrix of the Hough tensors with a historical eigenvector and eigenvalue of a historical canonical matrix of historical Hough tensors of historical seismic data, a first presence of noise in the seismic data. The first presence of noise can correspond to a noisy spectra pattern in a seismic data transform of the seismic data. The system provides, responsive to detection of the first presence of noise in the seismic data, a notification to adjust a characteristic of the seismic survey.
G01V 1/37 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie spécialement adaptés aux systèmes sismiques utilisant une agitation continue du sol
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
2.
Seismic data acquisition unit apparatus and positioning systems and methods
A seismic data acquisition positioning apparatus is provided. The apparatus can include a seismic data acquisition unit. The unit can include a case having an internal compartment. The unit can include a power source, a clock, a seismic data recorder, a control unit, and at least one sensor disposed within the case. The apparatus can include a hanging unit including a beacon unit. The apparatus can include a connector having a first end coupled with the seismic data acquisition unit and having a second end coupled with the hanging unit. The connector can pivot about the first end of the connector.
Systems and methods of near surface imaging and hazard detection with increased receiver spacing are provided. The system includes: a first string of one or more acoustic sources, a second string of one or more acoustic sources opposite the first string, a first one or more hydrophones mounted within a predetermined distance of the first string, and a second one or more hydrophones mounted within the predetermined distance of the second string. The first one or more hydrophones records an acoustic shot generated from the first string. The second one or more hydrophones records the acoustic shot and acoustic reflections corresponding to the acoustic shot. The system generates an image from the recorded acoustic shot and the acoustic reflections.
Systems and methods for retrieving seismic data acquisition units from an underwater seismic survey are provided. The system includes an underwater vehicle with a base and an underwater vehicle interlocking mechanism. The underwater vehicle receives environmental information and identifies a seismic data acquisition unit located on an ocean bottom. The underwater vehicle obtains an indication to perform a non-landing retrieval operation. The underwater vehicle sets a position of the underwater vehicle interlocking mechanism to extend away from the base of the underwater vehicle. The underwater vehicle retrieves the seismic data acquisition unit by coupling the underwater vehicle interlocking mechanism with a seismic data acquisition unit interlocking mechanism. The underwater vehicle stores the seismic data acquisition unit and then sets the underwater vehicle interlocking mechanism in a second position to perform the non-landing retrieval operation for a second seismic data acquisition unit.
The present disclosure is directed to a system to locate seismic data acquisition units in a marine environment. The system can include a first seismic data acquisition unit. The first seismic data acquisition unit can include a case having a wall defining an internal compartment, a power source, a clock, a seismic data recorder, and at least one geophone disposed within the case. The system can include a flexible connector and a telltale component, wherein the flexible connector and the telltale component can be stored adjacent to the first seismic data acquisition unit, wherein a second seismic data acquisition unit is coupled with the first seismic data acquisition unit.
A seabed object detection system is provided. The system can include a receiver array. The receiver array can include a plurality of receivers disposed on a plurality of streamers. The plurality of streamers can include a central port side streamer, a central starboard side streamer, an auxiliary port side streamer and an auxiliary starboard side streamer. The system can include a source array. The source array can include a plurality of sources. The plurality of sources can include a central port side source, a central starboard side source, an auxiliary port side source, and an auxiliary port side streamer.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
A seabed object detection system is provided. The system can include a receiver array. The receiver array can include a plurality of receivers disposed on a plurality of streamers. The plurality of streamers can include a central port side streamer, a central starboard side streamer, an auxiliary port side streamer and an auxiliary starboard side streamer. The system can include a source array. The source array can include a plurality of sources. The plurality of sources can include a central port side source, a central starboard side source, an auxiliary port side source, and an auxiliary port side streamer. The source array towed during a first pass can define a first path. The source array towed during a second pass can define a second path. The first path can be interleaved with the second path such that the first path overlaps the second path.
A seismic survey system is provided. The system can include a source array including a first sub-source array and a second sub-source array. The system can include a streamer coupled with the first sub-source array and a streamer coupled with the second sub-source array. The system can include a receiver array including a plurality of receivers. The system can include a lateral cable coupled with at least one of a first diverter or a second diverter and at least one of the first sub-source array or the second sub-source array. The system can include a positioning cable coupled with the first diverter and a positioning cable coupled with the second diverter. The system can include a power cable. The system can include a seismic data acquisition unit array including a plurality of seismic data acquisition units disposed on a seabed.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
Systems, apparatuses, and method of measuring hydrophone impedance are provided herein. A sensor can convert an acoustic wave received via a liquid medium into an electric signal. A signal encoder can be coupled with the sensor to receive the electric signal. A test signal generator can be coupled in series with the sensor and the signal encoder and can generate a test signal. The test signal can measure an impedance of the sensor. A switch component can be coupled in series with the sensor, the signal encoder, and the test signal generator. The switch component can route the test signal to a first terminal of the sensor and through a second terminal of sensor during a first operational state. The switch component can route the test signal to the second terminal of the sensor and through the first terminal of sensor during a second operational state.
A seismic survey system is provided. The system can include a receiver array including a first streamer and a second streamer. The system can include a first plurality of receivers coupled with the first streamer and a second plurality of receivers coupled with the second streamer. The system can include a main source array including a first main source and a second main source. The system can include an accessory source array including a first accessory source and a second accessory source. The first accessory source can couple with the first main source and the second accessory source can couple with the second main source. The system can include a first lateral cable to couple with a first diverter and with the first main source. The system can include a second lateral cable to couple with a second diverter and with the second main source.
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
A seismic survey system is provided. The system can include a receiver array including a first streamer and a second streamer. The system can include a first plurality of receivers coupled with the first streamer and a second plurality of receivers coupled with the second streamer. The system can include a main source array including a first main source and a second main source. The system can include an accessory source array including a first accessory source and a second accessory source. The first accessory source can couple with the first main source and the second accessory source can couple with the second main source. The system can include a first lateral cable to couple with a first diverter and with the first main source. The system can include a second lateral cable to couple with a second diverter and with the second main source.
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
12.
Systems and methods of determining parameters of a marine seismic survey
Systems and methods of detecting marine seismic survey parameters are provided. A data processing system can obtain seismic data from seismic data acquisition units disposed on a seabed responsive to an acoustic signal propagated from an acoustic source through a water column. The data processing system can determine from the seismic data, a direct arrival time for the acoustic signal at each of the plurality of seismic data acquisition units, and can obtain an estimated depth value of each of the plurality of seismic data acquisition units and an estimated water column transit velocity of the acoustic signal. The data processing system can apply a depth model and a water column transit velocity model to the estimated depth value and to the estimated water column transit velocity determine an updated depth value and an updated water column transit velocity for each of the plurality of seismic data acquisition units.
G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01V 3/18 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation spécialement adaptée au carottage
G06K 9/60 - Combinaison de l'obtention de l'image et des fonctions de prétraitement
G01V 3/06 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation fonctionnant par propagation de courant électrique en utilisant du courant alternatif
A seabed object detection system is provided. The system can include a receiver array. The receiver array can include a plurality of receivers disposed on a plurality of streamers. The plurality of streamers can include a central port side streamer, a central starboard side streamer, an auxiliary port side streamer and an auxiliary starboard side streamer. The system can include a source array. The source array can include a plurality of sources. The plurality of sources can include a central port side source, a central starboard side source, an auxiliary port side source, and an auxiliary port side streamer.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
A seabed object detection system is provided. The system can include a receiver array. The receiver array can include a plurality of receivers disposed on a plurality of streamers. The plurality of streamers can include a central port side streamer, a central starboard side streamer, an auxiliary port side streamer and an auxiliary starboard side streamer. The system can include a source array. The source array can include a plurality of sources. The plurality of sources can include a central port side source, a central starboard side source, an auxiliary port side source, and an auxiliary port side streamer. The source array towed during a first pass can define a first path. The source array towed during a second pass can define a second path. The first path can be interleaved with the second path such that the first path overlaps the second path.
A seabed object detection system is provided. The system can include a receiver array including a first streamer and a second streamer. The system can include a first plurality of receivers coupled with the first streamer and a second plurality of receivers coupled with the second streamer. The system can include a receiver array cross-cable to couple with the first streamer and the second streamer. The system can include a source array including a first source and a second source. The system can include a first source cable coupled with the first source and a second source cable coupled with the second source. The system can include a source array cross-cable to couple with the first source cable and the second source cable. The system can include a first lateral cable to couple with a first diverter and second lateral cable to couple with a second diverter.
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
A seabed object detection system is provided. The system can include a source array. The source array can include a first source and a second source. The system can include a data processing system including one or more processors. The data processing system can determine a position of the first source and can identify a first firing time of the second source. The data processing system can initiate a first source shot of the first source at a known position and the second source at a known time. The data processing system can determine a target position and estimated position for the first source. The data processing system can determine a second position of the first source based on a difference between the target position and the estimated position. The data processing system can initiate a second source shot of the first source at a known position.
A seabed object detection system can include a source array and a data processing system. The source array can include a first source and a second source. The data processing system can include one or more processors. The data processing system can determine a first position of the first source and can identify a first firing time of the second source. The data processing system can initiate a first source shot of the first source at the first position and the second source at the first firing time. The data processing system can determine a target position and estimated position for the first source. The data processing system can determine a second position of the first source based on a difference between the target position and the estimated position. The data processing system can initiate a second source shot of the first source at the second position.
A seabed object detection system is provided. The system can include a receiver array including streamers. The system can include a plurality of receivers coupled with the streamers. The system can include a receiver array cross-cable to couple with the first streamer and to couple with the second streamer. The receiver array cross-cable can be disposed at a first depth of a body of water. The system can include a first diverter and a second diverter coupled with the receiver array cross-cable. The system can include a source array including a first source and a second source. The source array can be coplanar to the receiver array. The system can include a source array cross-cable to couple with the first source and to couple with the second source, the source array cross-cable disposed at a second depth of the body of water.
A seabed object detection system is provided. The system can include a receiver array including streamers. The system can include a plurality of receivers coupled with the streamers. The system can include a receiver array cross-cable to couple with the first streamer and to couple with the second streamer. The receiver array cross-cable can be disposed at a first depth of a body of water. The system can include a first diverter and a second diverter coupled with the receiver array cross-cable. The system can include a source array including a first source and a second source. The source array can be coplanar to the receiver array. The system can include a source array cross-cable to couple with the first source and to couple with the second source, the source array cross-cable disposed at a second depth of the body of water.
G01S 15/04 - Systèmes de détermination de la présence d'une cible
G01S 15/89 - Systèmes sonar, spécialement adaptés à des applications spécifiques pour la cartographie ou la représentation
G01S 7/539 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe utilisant l'analyse du signal d'écho pour la caractérisation de la cible; Signature de cible; Surface équivalente de cible
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
H04B 10/69 - Dispositions électriques dans le récepteur
Systems and methods of performing a seismic survey are described. The system can receive seismic data in a first domain, and transform the seismic data into a tau-p domain. The system can identify a value on an envelope in the tau-p domain, select several values on the tau-p envelope using a threshold, and then generate a masking function. The system can combine the masking function with the tau-p transformed seismic data, and then perform an inverse tau-p transform on the combined seismic data. The system can adjust amplitudes in the inverse tau-p transformed combined seismic data, and identify one or more coherent events corresponding to subsea lithologic formations or hydrocarbon deposits.
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
G01V 1/32 - Transformation d'un mode d'enregistrement en un autre
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
22.
High-bandwidth underwater data communication system
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 10/69 - Dispositions électriques dans le récepteur
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
The present disclosure provides optical link management in a marine seismic environment. A first device can transmit, to a second device, a first optical transmission at a first output level. The first optical transmission can include a first packet corresponding to a network protocol. The first device can determine that the second device failed to receive the first packet via the first optical transmission. The first device can transmit, responsive to failure of the first optical transmission, a second optical transmission at a second output level different than the first output level. The second optical transmission can include a second packet corresponding to the network protocol. The first device can identify that the second packet was successfully received by the second link manager agent. The first device can establish, responsive to the identification that the second packet was successfully received, the second output level as a transmission output level for the first device.
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 1/08 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue par émission répétée, p.ex. système Verdan
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
24.
Determining node depth and water column transit velocity
Systems and methods of detecting marine seismic survey parameters are provided. A data processing system can obtain seismic data from seismic data acquisition units disposed on a seabed responsive to an acoustic signal propagated from an acoustic source through a water column. The data processing system can determine from the seismic data, a direct arrival time for the acoustic signal at each of the plurality of seismic data acquisition units, and can obtain an estimated depth value of each of the plurality of seismic data acquisition units and an estimated water column transit velocity of the acoustic signal. The data processing system can apply a depth model and a water column transit velocity model to the estimated depth value and to the estimated water column transit velocity determine an updated depth value and an updated water column transit velocity for each of the plurality of seismic data acquisition units.
G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01V 3/18 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation spécialement adaptée au carottage
G06K 9/60 - Combinaison de l'obtention de l'image et des fonctions de prétraitement
The present disclosure is directed to systems and methods to perform or facilitate operation of a seismic survey. The system can include a seismic data acquisition unit. The seismic data acquisition unit can include a cap free subsea connector. The connector can be formed of a snap ring, pin interconnect and socket insert. The snap ring can contact the pin interconnect. The pin interconnect can contact the socket insert. The socket insert can be in contact with isolation electronics within the seismic data acquisition unit. The snap ring can lock or keep the pin interconnect in contact with the socket insert. The pin interconnect can be removable and replaceable.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
26.
Method and system for deployment of ocean bottom seismometers
Systems and methods for deployment of ocean bottom seismic receivers into a body of water having a surface and a seabed. The system can include a remote operated vehicle (ROV) comprising a first wireless communication device. The system can include a seismic data receiver deployed on the seabed comprising a second wireless communication device. The first wireless communication device can be configured to communicate with the second wireless communication device. The ROV can move to a position adjacent to the seismic data receiver. The ROV can establish a wireless link with the seismic data receiver via the first communication device and second wireless communication device.
A modular seismic unit storage and handling system with a gantry robot and charging magazine is provided. The storage and handling system can include a storage container. The storage and handling system can include a top hat and a top hat extension. The storage and handling system can include an automated connection and charging magazine. The top hat can be connected to a gantry robot. The gantry robot can include a robotic arm.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
28.
Systems and methods of coupling underwater vehicle with underwater sensor storage container
The present disclosure is directed to systems, methods, and apparatus for delivering seismic data acquisition units to, and retrieving from, an underwater vehicle. A sensor storage container can be tethered to a surface vessel, which can move on the surface with a non-zero velocity. The underwater vehicle can include a storage compartment to store seismic data acquisition units and a propulsion system to aid the movement of the underwater vehicle. The underwater vehicle also can include passive and active protrusions for coupling with corresponding receptacles on the sensor storage container. The sensor storage container also can include a propulsion system to aid movement of the sensor storage container. The propulsion systems of both the underwater vehicle and the sensor storage container can be controlled to allow the underwater vehicle and the sensor storage container to couple and allow transfer of seismic data acquisition units.
The present disclosure is directed to delivering nodes to an ocean bottom. A system can include a tether management system (TMS) towed by a vessel that moves on the surface of the ocean in a first direction. An underwater vehicle (UV) can be connected to the TMS and can move in a second direction that is different from the first direction. A thruster can be coupled to the TMS can cause the TMS to move in a third direction that is different from the first direction. A control unit can control the thruster to move the TMS in the third direction based on a cross-line location policy, and cause the UV to deploy nodes to target locations on the ocean bottom.
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
Systems and methods for delivering seismic data acquisition units to an ocean bottom are provided. A system includes an underwater vehicle including with sensors to determine environmental information. A control unit obtains, based on the environmental information and a policy, an indication to perform a fly-by deployment. The control unit sets an angle of a ramp with respect to a base of the underwater vehicle. The control unit identifies a launch event for a seismic data acquisition unit of a plurality of seismic data acquisition units stored in the underwater vehicle, and deploys the seismic data acquisition unit from the ramp towards the ocean bottom based on the identification of the launch event and the environmental information.
The present disclosure provides optical link management in a marine seismic environment. A first device can transmit, to a second device, a first optical transmission at a first output level. The first optical transmission can include a first packet corresponding to a network protocol. The first device can determine that the second device failed to receive the first packet via the first optical transmission. The first device can transmit, responsive to failure of the first optical transmission, a second optical transmission at a second output level different than the first output level. The second optical transmission can include a second packet corresponding to the network protocol. The first device can identify that the second packet was successfully received by the second link manager agent. The first device can establish, responsive to the identification that the second packet was successfully received, the second output level as a transmission output level for the first device.
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 1/08 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue par émission répétée, p.ex. système Verdan
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
Systems and methods of performing a seismic survey are provided. The system includes a seismic data acquisition unit having a transmitter window disposed in a first aperture of a lid, and having a receiver window disposed in a second aperture of the lid. A first gasket is positioned between the transmitter window and the first aperture to provide a clearance greater than a threshold to allow the transmitter window to deform. A second gasket is positioned between the receiver window and the second aperture to provide a clearance greater than the threshold to allow the receiver window to deform. At least one of the transmitter window and the receiver window of the seismic data acquisition unit are configured to pass at least one of optical and electromagnetic communications to or from an extraction vehicle via at least one of a transmitter window and a receiver window of the extraction vehicle.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
G01L 27/00 - Test ou étalonnage des appareils pour la mesure de la pression des fluides
G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes
G01S 11/12 - Systèmes pour déterminer la distance ou la vitesse sans utiliser la réflexion ou la reradiation utilisant des ondes électromagnétiques autres que les ondes radio
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
33.
High-bandwidth underwater data communication system
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 10/2575 - Radio sur fibre, p.ex. signal radio modulé en fréquence sur une porteuse optique
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
Systems and methods of near surface imaging and hazard detection with increased receiver spacing are provided. The system includes: a first string of one or more acoustic sources, a second string of one or more acoustic sources opposite the first string, a first one or more hydrophones mounted within a predetermined distance of the first string, and a second one or more hydrophones mounted within the predetermined distance of the second string. The first one or more hydrophones records an acoustic shot generated from the first string. The second one or more hydrophones records the acoustic shot and acoustic reflections corresponding to the acoustic shot. The system generates an image from the recorded acoustic shot and the acoustic reflections.
G01S 7/00 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , ,
The present disclosure provides optical link management in a marine seismic environment. A first device can transmit, to a second device, a first optical transmission at a first output level. The first optical transmission can include a first packet corresponding to a network protocol. The first device can determine that the second device failed to receive the first packet via the first optical transmission. The first device can transmit, responsive to failure of the first optical transmission, a second optical transmission at a second output level different than the first output level. The second optical transmission can include a second packet corresponding to the network protocol. The first device can identify that the second packet was successfully received by the second link manager agent. The first device can establish, responsive to the identification that the second packet was successfully received, the second output level as a transmission output level for the first device.
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 1/08 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue par émission répétée, p.ex. système Verdan
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
36.
Systems and methods to locate seismic data acquisition units
The present disclosure is directed to systems and methods of facilitating a seismic survey and locating seismic data acquisition units in a marine environment. The system can include a first seismic data acquisition unit. The first seismic data can include a cleat ring to couple the first seismic data acquisition with a second seismic data acquisition unit. The system can include a rope having a first end coupled to a first portion of the first seismic data acquisition unit and a second end coupled to a second portion of the first seismic data acquisition unit. The system can include a cavity formed by the cleat ring. The system can include a telltale component coupled to a portion of the rope. The rope and the telltale component can be stored in the cavity of the first seismic data acquisition unit.
A method of performing a seismic survey including: deploying nodal seismic sensors at positions in a survey region; activating a plurality of seismic sources; and using the nodal seismic sensors to record seismic signals generated in response to the activation of the plurality of signals.
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
H04B 10/69 - Dispositions électriques dans le récepteur
A wireless seismic data acquisition unit with a wireless receiver providing access to a common remote time reference shared by wireless seismic data acquisition units in a seismic system. The receiver can replicate local version of remote time epoch to which a seismic sensor analog-to-digital converter is synchronized. The receiver can replicate local version of remote common time reference to time stamp local node events. The receiver can be placed in a low power, non-operational state over periods of time during which the unit continues to record seismic data, thus conserving unit battery power. The system corrects the local time clock based on intermittent access to the common remote time reference. The system corrects the local time clock via a voltage controlled oscillator to account for environmentally induced timing errors.
G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01C 9/00 - Mesure de l'inclinaison, p.ex. par clinomètres, par niveaux
40.
Determining node depth and water column transit velocity
Systems and methods of detecting marine seismic survey parameters are provided. A data processing system can obtain seismic data from seismic data acquisition units disposed on a seabed responsive to an acoustic signal propagated from an acoustic source through a water column. The data processing system can determine from the seismic data, a direct arrival time for the acoustic signal at each of the plurality of seismic data acquisition units, and can obtain an estimated depth value of each of the plurality of seismic data acquisition units and an estimated water column transit velocity of the acoustic signal. The data processing system can apply a depth model and a water column transit velocity model to the estimated depth value and to the estimated water column transit velocity determine an updated depth value and an updated water column transit velocity for each of the plurality of seismic data acquisition units.
G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01V 3/18 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation spécialement adaptée au carottage
G06K 9/60 - Combinaison de l'obtention de l'image et des fonctions de prétraitement
The present disclosure provides optical link management in a marine seismic environment. A first device can transmit, to a second device, a first optical transmission at a first output level. The first optical transmission can include a first packet corresponding to a network protocol. The first device can determine that the second device failed to receive the first packet via the first optical transmission. The first device can transmit, responsive to failure of the first optical transmission, a second optical transmission at a second output level different than the first output level. The second optical transmission can include a second packet corresponding to the network protocol. The first device can identify that the second packet was successfully received by the second link manager agent. The first device can establish, responsive to the identification that the second packet was successfully received, the second output level as a transmission output level for the first device.
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 1/08 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue par émission répétée, p.ex. système Verdan
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
A method of performing a seismic survey including: deploying nodal seismic sensors at positions in a survey region; activating a plurality of seismic sources; and using the nodal seismic sensors to record seismic signals generated in response to the activation of the plurality of signals.
The present disclosure is directed to underwater seismic exploration with a helical conveyor and skid structure. The system can include an underwater vehicle comprising a sensor to identify a case having a hydrodynamic shape, wherein the case stores one or more ocean bottom seismometer (“OBS”) units. The underwater vehicle includes an arm. The underwater vehicle includes an actuator to position the arm in an open state above a cap of the case, or to close the arm. The underwater vehicle can move the arm to a bottom portion of the case opposite the cap. An opening of the case can be aligned with the conveyor of the underwater vehicle. The conveyor can receive, via the opening of the case, a first OBS unit of the one or more OBS units. The conveyor can move the first OBS unit to the seabed to acquire seismic data from the seabed.
B65G 11/06 - Colonnes de descente hélicoïdales ou en spirale
B65G 33/14 - Transporteurs rotatifs à vis ou à hélice pour matériaux solides fluents comportant une vis ou plusieurs vis enfermées dans un carter tubulaire
Embodiments described herein relate to an apparatus and method of transferring seismic equipment to and from a marine vessel and subsurface location. In one embodiment, a marine vessel is provided. The marine vessel includes a deck having a plurality of seismic sensor devices stored thereon, two remotely operated vehicles, each comprising a seismic sensor storage compartment, and a seismic sensor transfer device comprising a container for transfer of one or more of the seismic sensor devices from the vessel to the sensor storage compartment of at least one of the two remotely operated vehicles.
B63B 27/10 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des grues, ponts roulants ou portiques
45.
Conveyance system and method for underwater seismic exploration
The present disclosure is directed to a helical conveyor for underwater seismic exploration. The system can include a case having a cylindrical portion. A cap is positioned adjacent to a first end of the case. A conveyor having a helix structure is provided within the case. The conveyor can receive an ocean bottom seismometer (“OBS”) unit at a first end of the conveyer and transport the OBS unit via the helix structure to a second end of the conveyor to provide the OBS unit on the seabed to acquire the seismic data. The system can include a propulsion system to receive an instruction and, responsive to the instruction, facilitate movement of the case.
The present disclosure is directed to systems and methods to perform or facilitate operation of a seismic survey. The system can include a seismic data acquisition unit. The seismic data acquisition unit can include a cap free subsea connector. The connector can be formed of a snap ring, pin interconnect and socket insert. The snap ring can contact the pin interconnect. The pin interconnect can contact the socket insert. The socket insert can be in contact with isolation electronics within the seismic data acquisition unit. The snap ring can lock or keep the pin interconnect in contact with the socket insert. The pin interconnect can be removable and replaceable.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
The present disclosure is directed to a skid structure for underwater seismic exploration. The system can include an underwater vehicle comprising a skid structure. A conveyor is provided in the skid structure. The conveyor includes a first end and a second end opposite the first end. A capture appliance is provided at the first end of the conveyor. The capture appliance includes an arm to close to hold a case storing one or more ocean bottom seismometer (“OBS”) units, and to open to release the case. The capture appliance includes an alignment mechanism to align an opening of the case with the first end of the conveyor. A deployment appliance can be at the second end of the conveyor. The deployment appliance can place an OBS unit of the one or more OBS units onto the seabed to acquire seismic data from the seabed.
Systems and methods of performing a seismic survey are described. The system can receive seismic data in a first domain, and transform the seismic data into a tau-p domain. The system can identify a value on an envelope in the tau-p domain, select several values on the tau-p envelope using a threshold, and then generate a masking function. The system can combine the masking function with the tau-p transformed seismic data, and then perform an inverse tau-p transform on the combined seismic data. The system can adjust amplitudes in the inverse tau-p transformed combined seismic data, and identify one or more coherent events corresponding to subsea lithologic formations or hydrocarbon deposits.
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
G01V 1/32 - Transformation d'un mode d'enregistrement en un autre
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
49.
Loading a helical conveyor for underwater seismic exploration
The present disclosure is directed to loading a helical conveyor for underwater seismic exploration. The system includes a case and a first conveyor having a helix structure provided within the case to support one or more ocean bottom seismometer (“OBS”) units. The case can include a first opening at a first end of the first conveyor and a second opening at a second end of the first conveyor. The system can include a base to receive at least a portion of the case. The system can include a second conveyor positioned external to the case that can move an OBS unit into the first opening at the first end of the first conveyor. The first conveyor can receive the OBS unit and direct the OBS unit towards the second opening at the second end of the first conveyor.
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 10/2575 - Radio sur fibre, p.ex. signal radio modulé en fréquence sur une porteuse optique
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/69 - Dispositions électriques dans le récepteur
Systems and methods of optical link communication with seismic data acquisition units are provided. The systems and methods can perform at least portions of seismic data acquisition survey. A plurality of seismic data acquisition units can be deployed on a seabed. An optical communications link can be established between an extraction vehicle and at least one of the seismic data acquisition units. A frequency of the at least one seismic data acquisition unit can be syntonized or synchronized via the optical communications link. The at least one seismic data acquisition unit can be instructed to enter a low power state subsequent to syntonizing the frequency of the at least one seismic data acquisition unit. The seismic data acquisition unit can exit the low power state and acquire seismic data in an operational state.
G01L 27/00 - Test ou étalonnage des appareils pour la mesure de la pression des fluides
G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes
G01S 11/12 - Systèmes pour déterminer la distance ou la vitesse sans utiliser la réflexion ou la reradiation utilisant des ondes électromagnétiques autres que les ondes radio
Systems and methods of performing a seismic survey are provided. The system includes a seismic data acquisition unit having a transmitter window disposed in a first aperture of a lid, and having a receiver window disposed in a second aperture of the lid. A first gasket is positioned between the transmitter window and the first aperture to provide a clearance greater than a threshold to allow the transmitter window to deform. A second gasket is positioned between the receiver window and the second aperture to provide a clearance greater than the threshold to allow the receiver window to deform. At least one of the transmitter window and the receiver window of the seismic data acquisition unit are configured to pass at least one of optical and electromagnetic communications to or from an extraction vehicle via at least one of a transmitter window and a receiver window of the extraction vehicle.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
Systems and methods of performing a seismic survey in a marine environment are provided. The system includes a seismic data acquisition unit disposed on a seabed in the marine environment. The seismic data acquisition unit includes a local pressure sensor, an optical transmitter and an optical receiver to determine one or more pressure values. The system includes an extraction vehicle including a reference pressure sensor, an optical transmitter, and an optical receiver to establish an optical communications link with the seismic data acquisition unit, and generate reference pressure data. The system includes at least one of the local pressure sensor and the one or more pressure values calibrated based on the reference pressure data generated by the extraction vehicle.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes
G01S 11/12 - Systèmes pour déterminer la distance ou la vitesse sans utiliser la réflexion ou la reradiation utilisant des ondes électromagnétiques autres que les ondes radio
G01L 27/00 - Test ou étalonnage des appareils pour la mesure de la pression des fluides
The present disclosure provides optical link management in a marine seismic environment. A first device can transmit, to a second device, a first optical transmission at a first output level. The first optical transmission can include a first packet corresponding to a network protocol. The first device can determine that the second device failed to receive the first packet via the first optical transmission. The first device can transmit, responsive to failure of the first optical transmission, a second optical transmission at a second output level different than the first output level. The second optical transmission can include a second packet corresponding to the network protocol. The first device can identify that the second packet was successfully received by the second link manager agent. The first device can establish, responsive to the identification that the second packet was successfully received, the second output level as a transmission output level for the first device.
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 1/08 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue par émission répétée, p.ex. système Verdan
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
A method of performing a seismic survey including: deploying nodal seismic sensors at positions in a survey region; activating a plurality of seismic sources; and using the nodal seismic sensors to record seismic signals generated in response to the activation of the plurality of signals.
Systems and methods for deployment and retrieval of ocean bottom seismic receivers. In some embodiments, the system includes a carrier containing receivers. The carrier can include a frame having a mounted structure (e.g., a movable carousel, movable conveyor, fixed parallel rails, or a barrel) for seating and releasing the receivers (e.g., axially stacked). The structure can facilitate delivering receivers to a discharge port on the frame. The system can include a discharge mechanism for removing receivers from the carrier. In some embodiments, the method includes loading a carrier with receivers, transporting the carrier from a surface vessel to a position adjacent the seabed, and using an ROV to remove receivers from the carrier and place the receivers on the seabed. In some embodiments, an ROV adjacent the seabed engages a deployment line that guides receivers from the vessel down to the ROV for “on-time” delivery and placement on the seabed.
The present disclosure is directed to loading a helical conveyor for underwater seismic exploration. The system includes a case and a first conveyor having a helix structure provided within the case to support one or more ocean bottom seismometer (“OBS”) units. The case can include a first opening at a first end of the first conveyor and a second opening at a second end of the first conveyor. The system can include a base to receive at least a portion of the case. The system can include a second conveyor positioned external to the case that can move an OBS unit into the first opening at the first end of the first conveyor. The first conveyor can receive the OBS unit and direct the OBS unit towards the second opening at the second end of the first conveyor.
The present disclosure is directed to a skid structure for underwater seismic exploration. The system can include an underwater vehicle comprising a skid structure. A conveyor is provided in the skid structure. The conveyor includes a first end and a second end opposite the first end. A capture appliance is provided at the first end of the conveyor. The capture appliance includes an arm to close to hold a case storing one or more ocean bottom seismometer (“OBS”) units, and to open to release the case. The capture appliance includes an alignment mechanism to align an opening of the case with the first end of the conveyor. A deployment appliance can be at the second end of the conveyor. The deployment appliance can place an OBS unit of the one or more OBS units onto the seabed to acquire seismic data from the seabed.
The present disclosure is directed to a helical conveyor for underwater seismic exploration. The system can include a case having a cylindrical portion. A cap is positioned adjacent to a first end of the case. A conveyor having a helix structure is provided within the case. The conveyor can receive an ocean bottom seismometer (“OBS”) unit at a first end of the conveyer and transport the OBS unit via the helix structure to a second end of the conveyor to provide the OBS unit on the seabed to acquire the seismic data. The system can include a propulsion system to receive an instruction and, responsive to the instruction, facilitate movement of the case.
The present disclosure is directed to a helical conveyor for underwater seismic exploration. The system can include a case having a cylindrical portion. A cap is positioned adjacent to a first end of the case. A conveyor having a helix structure is provided within the case. The conveyor can receive an ocean bottom seismometer (“OBS”) unit at a first end of the conveyer and transport the OBS unit via the helix structure to a second end of the conveyor to provide the OBS unit on the seabed to acquire the seismic data.
Systems and methods for deployment and retrieval of ocean bottom seismic receivers. In some embodiments, the system includes a carrier containing receivers. The carrier can include a frame having a mounted structure (e.g., a movable carousel, movable conveyor, fixed parallel rails, or a barrel) for seating and releasing the receivers (e.g., axially stacked). The structure can facilitate delivering receivers to a discharge port on the frame. The system can include a discharge mechanism for removing receivers from the carrier. In some embodiments, the method includes loading a carrier with receivers, transporting the carrier from a surface vessel to a position adjacent the seabed, and using an ROV to remove receivers from the carrier and place the receivers on the seabed. In some embodiments, an ROV adjacent the seabed engages a deployment line that guides receivers from the vessel down to the ROV for “on-time” delivery and placement on the seabed.
A wireless seismic data acquisition unit with a wireless receiver providing access to a common remote time reference shared by wireless seismic data acquisition units in a seismic system. The receiver can replicate local version of remote time epoch to which a seismic sensor analog-to-digital converter is synchronized. The receiver can replicate local version of remote common time reference to time stamp local node events. The receiver can be placed in a low power, non-operational state over periods of time during which the unit continues to record seismic data, thus conserving unit battery power. The system corrects the local time clock based on intermittent access to the common remote time reference. The system corrects the local time clock via a voltage controlled oscillator to account for environmentally induced timing errors. The system provides a more stable method of correcting drift in the local time clock.
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01C 9/00 - Mesure de l'inclinaison, p.ex. par clinomètres, par niveaux
64.
Determining node depth and water column transit velocity
Systems and methods of detecting marine seismic survey parameters are provided. A data processing system can obtain seismic data from seismic data acquisition units disposed on a seabed responsive to an acoustic signal propagated from an acoustic source through a water column. The data processing system can determine from the seismic data, a direct arrival time for the acoustic signal at each of the plurality of seismic data acquisition units, and can obtain an estimated depth value of each of the plurality of seismic data acquisition units and an estimated water column transit velocity of the acoustic signal. The data processing system can apply a depth model and a water column transit velocity model to the estimated depth value and to the estimated water column transit velocity determine an updated depth value and an updated water column transit velocity for each of the plurality of seismic data acquisition units.
G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
G01V 3/18 - Prospection ou détection électrique ou magnétique; Mesure des caractéristiques du champ magnétique de la terre, p.ex. de la déclinaison ou de la déviation spécialement adaptée au carottage
G06K 9/60 - Combinaison de l'obtention de l'image et des fonctions de prétraitement
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/69 - Dispositions électriques dans le récepteur
66.
Conveyance system and method for underwater seismic exploration
A system to deploy seismic sensors in a marine environment is provided. The system includes a seismic sensor transfer device to house and transport a plurality of seismic sensors. The seismic sensor transfer device is deployed from a vessel. The system includes a propulsion system of the seismic sensor transfer device to receive an instruction and move, responsive to the instruction, the seismic sensor transfer device. The system includes an underwater vehicle that transfers at least one of the plurality of seismic sensors from the seismic sensor transfer device to the underwater vehicle. The underwater vehicle operates at a second speed different from a first speed at which the vessel operates. The underwater vehicle places the at least one seismic sensor on a seabed.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 25/28 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour charges sur le pont
B63B 27/10 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des grues, ponts roulants ou portiques
B63C 11/52 - Outillage spécialement adapté au travail sous l'eau, non prévu ailleurs
G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
A self-contained, wireless seismic data acquisition unit having a cylindrically shaped case with smooth side walls along the length of the case. A retaining ring around the circumference is used to secure the cylindrical upper portion of the case to the cylindrical lower portion of the case. Interleaved fingers on the upper portion of the case and the lower portion of the case prevent the upper portion and the lower portion from rotating relative to one another. Ruggedized external electrical contacts are physically decoupled from rigid attachment to the internal electrical components of the unit utilizing electrical pins that “float” relative to the external case and the internal circuit board on which the pins are carried. The seismic sensors in the unit, such as geophones, and the antennae for the unit are located along the major axis of the cylindrically shaped case to improve fidelity and timing functions.
H01R 12/00 - Association structurelle de plusieurs éléments de connexion électrique isolés les uns des autres, spécialement conçue pour des circuits imprimés, p.ex. des cartes de circuit imprimé [PCB], des câbles plats ou à ruban ou des structures similaires géné; Dispositifs de couplage spécialement conçus pour des circuits imprimés, des câbles plats ou à ruban ou des structures similaires généralement planes; Bornes spécialement conçues pour établir le contact avec, ou pour être insérées dans des circuits imprimés, des câbles plats ou à ruban ou des structures similaires généralement planes
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques - Détails
H01R 12/58 - Connexions fixes pour circuits imprimés rigides ou structures similaires caractérisées par les bornes bornes pour insertion dans des trous
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
68.
High-bandwidth underwater data communication system
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
G08C 23/04 - Systèmes de transmission de signaux non électriques, p.ex. systèmes optiques utilisant des ondes lumineuses, p.ex. infrarouges
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/2575 - Radio sur fibre, p.ex. signal radio modulé en fréquence sur une porteuse optique
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
Apparatus and methods to operationally deploy land-based seismic nodes. An autonomous or semi-autonomous vehicle includes apparatus for placing, monitoring, testing, servicing, and collecting nodes in a harsh environment such as, e.g., tundra or desert. Associated methods of node deployment and retrieval are disclosed including a ‘rollover deployment.’
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
E21B 7/02 - Appareils de forage caractérisés par des moyens de transport terrestre, p.ex. montés sur des patins ou des roues
E21B 49/00 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
A method of performing a seismic survey including: deploying nodal seismic sensors at positions in a survey region; activating a plurality of seismic sources; and using the nodal seismic sensors to record seismic signals generated in response to the activation of the plurality of signals.
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/2575 - Radio sur fibre, p.ex. signal radio modulé en fréquence sur une porteuse optique
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
Machinery and methods are described whereby a free flying, remotely operated vehicle (ROV) can safely capture and take on board lightly managed seismic sensor devices (payload) while they are in-transit via a surface vessel in a (deep) water column. ROV payload can be replenished without the need for the ROV to return to the surface vessel to receive additional payload and to do so without the need for heavy launch and recovery machinery. The reverse process of returning payload from the ROV to the surface vessel is also disclosed.
B63B 27/18 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des câbles supports, p.ex. avec bouées-culottes
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 27/00 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers
B63C 11/52 - Outillage spécialement adapté au travail sous l'eau, non prévu ailleurs
B63B 27/30 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers pour le transfert entre des navires en mer ou entre un navire et un poste situé en mer
B63B 27/16 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des ascenseurs ou appareils de levage
73.
Arginine methyltransferase inhibitors and uses thereof
Described herein are compounds of Formula (I), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds described herein are useful for inhibiting arginine methyltransferase activity. Methods of using the compounds for treating arginine methyltransferase-mediated disorders are also described.
C07D 409/04 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre comme uniques hétéro-atomes du cycle contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 403/04 - Composés hétérocycliques contenant plusieurs hétérocycles, comportant des atomes d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 413/04 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes d'azote et d'oxygène comme uniques hétéro-atomes du cycle contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 231/12 - Composés hétérocycliques contenant des cycles diazole-1, 2 ou diazole-1, 2 hydrogéné non condensés avec d'autres cycles comportant deux ou trois liaisons doubles entre chaînons cycliques ou entre chaînons cycliques et chaînons non cycliques avec uniquement des atomes d'hydrogène, des radicaux hydrocarbonés ou des radicaux hydrocarbonés substitués, liés directement aux atomes de carbone du cycle
C07D 407/04 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes d'oxygène comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 411/04 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes d'oxygène et de soufre comme uniques hétéro-atomes du cycle contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 405/04 - Composés hétérocycliques contenant à la fois un ou plusieurs hétérocycles comportant des atomes d'oxygène comme uniques hétéro-atomes du cycle et un ou plusieurs hétérocycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 417/04 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre et d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
A61K 31/4155 - 1,2-Diazoles non condensés et contenant d'autres hétérocycles
A61K 31/428 - Thiazoles condensés avec des carbocycles
A61K 31/437 - Composés hétérocycliques ayant l'azote comme hétéro-atome d'un cycle, p.ex. guanéthidine ou rifamycines ayant des cycles à six chaînons avec un azote comme seul hétéro-atome d'un cycle condensés en ortho ou en péri avec des systèmes hétérocycliques le système hétérocyclique contenant un cycle à cinq chaînons ayant l'azote comme hétéro-atome du cycle, p.ex. indolizine, bêta-carboline
A computing system and method for determining the x, y energy receiver (node) positions regardless of the angle at which the energy was released from the source. The process and computing system involves an iterative looping technique that is executed in data processing software wherein an initial model position based on, in essence, a best guess as to a node's location, followed with the iterative process of statistically comparing model data to actual data and then adjusting the model position by some predetermined amount and comparing this new result to the actual data to determine if the newly adjusted position is statistically better or worse than the originally selected position assumption. The process can be repeated using continuously smaller distance adjustments to the previously determined best position. Once satisfied that the true best position has been achieved, the processing can cease and the XY position data may be used in the normal course of generating seismic maps.
An item storage, dispensing, and receiving apparatus includes a frame assembly having a height and length, including at least one section thereof having two opposing side wall sections, wherein each opposing side wall section includes vertically spaced rails disposed on an inner surface thereof such that each rail on a respective side wall section is located opposite a corresponding rail on the opposing side wall section, further wherein the at least one section has an open space fully extending between the vertically spaced rails between the two opposing side wall sections over the height and length, and a conveyance mechanism located within the open space along at least a portion of the length, wherein the conveyance mechanism is movable in a vertical direction in the open space along the height. A method for moving an item in a tiered, spaced relation involves the steps of vertically moving an item conveyance mechanism from a position below a lowest tiered item until it engages the item or from a position above a highest tiered item until it engages the item, and horizontally conveying the engaged item to a location different than the horizontal engagement location of the item.
Apparatus and methods to operationally link (couple/decouple) a plurality of relatively massive, complimentary payload platforms (i.e., suspended machinery and ROV) at relatively deep working depths in an unstable marine environment (water column) while the payload platforms are in-transit. An apparatus includes a suspended machinery, an ROV, a capture collar, an extendable/retractable harpoon, and actuating machinery to controllably effect extension and retraction thereof. A method includes providing an in-transit suspended machinery having a capture collar, providing an in-transit ROV having an extendable/retractable harpoon, approaching the in-transit suspended machinery with the ROV, maneuvering the ROV so as to bring an end of the partially extended harpoon into aligned proximity with the capture collar, and further extending the harpoon so that it securely engages the capture collar.
A payload control apparatus includes a spring-line a spring line actuating mechanism, a spring line flying sheave over which a load line can pass, and a spring line, wherein the spring line flying sheave can move into a position either where the flying sheave is spaced from and in non-contact with or contacting but non-path-altering in relation to the load line, further wherein the spring-line flying sheave can be moved into another position such that the flying sheave engages the load-line and alters its path length. Thus, when a marine surface vessel falls in a heave event that would otherwise cause the payload at the end of the load line to fall as well, the flying sheave will move to increase the path length causing a shortening of the path length, thereby preventing the payload from falling.
B66D 1/28 - Autres parties constitutives de structure
B66C 13/02 - Dispositifs pour faciliter le repêchage d'objets flottants, p.ex. pour récupérer des embarcations à l'eau
B66C 13/10 - Dispositifs auxiliaires pour commander les mouvements des charges suspendues ou pour empêcher le câble de prendre du mou pour empêcher le câble de prendre du mou
B63B 27/16 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des ascenseurs ou appareils de levage
B66D 1/52 - Dispositifs de commande automatiques pour faire varier la tension d'une corde ou d'un câble, p.ex. lorsqu'on retire une embarcation de l'eau
79.
Capture and docking apparatus, method, and applications
Apparatus and methods to operationally link (couple/decouple) a plurality of relatively massive, complimentary payload platforms (i.e., suspended machinery and ROV) at relatively deep working depths in an unstable marine environment (water column) while the payload platforms are in-transit. An apparatus includes a suspended machinery, an ROV, a capture collar, an extendable/retractable harpoon, and actuating machinery to controllably effect extension and retraction thereof. A method includes providing an in-transit suspended machinery having a capture collar, providing an in-transit ROV having an extendable/retractable harpoon, approaching the in-transit suspended machinery with the ROV, maneuvering the ROV so as to bring an end of the partially extended harpoon into aligned proximity with the capture collar, and further extending the harpoon so that it securely engages the capture collar.
A method and apparatus for a seismic cable is described. In one embodiment, a method for performing a seismic survey in a water column is described. The method comprises providing a length of flexible cable from a cable storage device disposed on a vessel to a cable handling device adjacent the cable storage device. The flexible cable comprises a specific gravity that is greater than a specific gravity of water in the water column. The method further comprises routing the flexible cable to pass adjacent a workstation disposed on the vessel, deploying a free end of the flexible cable into the water column, attaching at least one of a plurality of seismic sensor units to the cable as the cable passes the workstation, and controlling the motion of the vessel and the rotational speed of the cable handling device to allow the flexible cable to rest on the bottom of the water column.
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
A seismic exploration method and unit comprised of continuous recording, self-contained wireless seismometer units or pods. The self-contained unit may include a tilt meter, a compass and a mechanically gimbaled clock platform. Upon retrieval, seismic data recorded by the unit can be extracted and the unit can be charged, tested, re-synchronized, and operation can be re-initiated without the need to open the unit's case. The unit may include an additional geophone to mechanically vibrate the unit to gauge the degree of coupling between the unit and the earth. The unit may correct seismic data for the effects of crystal aging arising from the clock. Deployment location of the unit may be determined tracking linear and angular acceleration from an initial position. The unit may utilize multiple geophones angularly oriented to one another in order to redundantly measure seismic activity in a particular plane.
In one embodiment, a marine vessel is provided. The vessel includes a cable storage device disposed on a deck of the vessel, a workstation disposed on the vessel, a ramp at least partially disposed on the deck, and a node storage and handling system disposed on the vessel. The node storage and handling system comprises a cable handler disposed between the cable storage device and the ramp, the cable handler having a cable disposed thereon and the cable defining a cable path passing over the workstation during a node deployment or retrieval operation, a node storage rack positioned between a bow and a stern of the vessel, and at least one conveyor belt to transfer nodes between the workstation and the node storage rack.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63B 21/66 - Apparaux de remorquage ou de poussée Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p.ex. carénages hydrodynamiques pour câbles de remorquage
84.
High-bandwidth underwater data communication system
An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p.ex. alimentation par faisceau optique ou transmission optique dans l’eau
H04B 14/00 - Systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p.ex. télégraphie par le sol
H04B 10/2575 - Radio sur fibre, p.ex. signal radio modulé en fréquence sur une porteuse optique
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
85.
Method and system for transmission of seismic data
The transmission system combines a self-contained, wireless seismic acquisition unit and a wireless, line of site, communications unit to form a plurality of individual short-range transmission networks and also a mid-range, line of sight transmission network.
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
86.
Method and system for transmission of seismic data
The transmission system combines a self-contained, wireless seismic acquisition unit and a wireless, line of site, communications unit to form a plurality of individual short-range transmission networks and also a mid-range, line of sight transmission network.
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
A method of performing a seismic survey including: deploying nodal seismic sensors at positions in a survey region; activating a plurality of seismic sources; and using the nodal seismic sensors to record seismic signals generated in response to the activation of the plurality of signals.
Systems and methods for deployment and retrieval of ocean bottom seismic receivers. In some embodiments, the system includes a carrier containing receivers. The carrier can include a frame having a mounted structure (e.g., a movable carousel, movable conveyor, fixed parallel rails, or a barrel) for seating and releasing the receivers (e.g., axially stacked). The structure can facilitate delivering receivers to a discharge port on the frame. The system can include a discharge mechanism for removing receivers from the carrier. In some embodiments, the method includes loading a carrier with receivers, transporting the carrier from a surface vessel to a position adjacent the seabed, and using an ROV to remove receivers from the carrier and place the receivers on the seabed. In some embodiments, an ROV adjacent the seabed engages a deployment line that guides receivers from the vessel down to the ROV for “on-time” delivery and placement on the seabed.
Systems and methods for deployment and retrieval of ocean bottom seismic receivers. In some embodiments, the system includes a carrier containing receivers. The carrier can include a frame having a mounted structure (e.g., a movable carousel, movable conveyor, fixed parallel rails, or a barrel) for seating and releasing the receivers (e.g., axially stacked). The structure can facilitate delivering receivers to a discharge port on the frame. The system can include a discharge mechanism for removing receivers from the carrier. In some embodiments, the method includes loading a carrier with receivers, transporting the carrier from a surface vessel to a position adjacent the seabed, and using an ROV to remove receivers from the carrier and place the receivers on the seabed. In some embodiments, an ROV adjacent the seabed engages a deployment line that guides receivers from the vessel down to the ROV for “on-time” delivery and placement on the seabed.
A method of determining battery performance information indicative of a performance of a battery in a device is disclosed, the method including: receiving environmental condition information indicative of environmental conditions of the device during a usage period; receiving operating parameter information indicative of one or more operating parameters of the battery during the usage period; and determining the battery performance information based at least in part on: the environmental condition information, the operating parameter information, and a performance model corresponding to the battery.
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p.ex. de la capacité ou de l’état de charge
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
In one aspect, a seismic data acquisition unit is disclosed including a closed housing containing: a seismic sensor; a processor operatively coupled to the seismic sensor; a memory operatively coupled to the processor to record seismic data from the sensor; and a power source configured to power the sensor, processor and memory. The sensor, processor, memory and power source are configured to be assemble as an operable unit in the absence of the closed housing.
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
Embodiments described herein relate to an apparatus and method of transferring seismic equipment to and from a marine vessel and subsurface location. In one embodiment, a marine vessel is provided. The marine vessel includes a deck having a plurality of seismic sensor devices stored thereon, two remotely operated vehicles, each comprising a seismic sensor storage compartment, and a seismic sensor transfer device comprising a container for transfer of one or more of the seismic sensor devices from the vessel to the sensor storage compartment of at least one of the two remotely operated vehicles.
G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B63C 11/52 - Outillage spécialement adapté au travail sous l'eau, non prévu ailleurs
G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
B63B 25/28 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour charges sur le pont
B63B 27/10 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des grues, ponts roulants ou portiques
A self-contained, wireless seismic data acquisition unit having a cylindrically shaped case with smooth side walls along the length of the case. A retaining ring around the circumference is used to secure the cylindrical upper portion of the case to the cylindrical lower portion of the case. Interleaved fingers on the upper portion of the case and the lower portion of the case prevent the upper portion and the lower portion from rotating relative to one another. Ruggedized external electrical contacts are physically decoupled from rigid attachment to the internal electrical components of the unit utilizing electrical pins that “float” relative to the external case and the internal circuit board on which the pins are carried. The seismic sensors in the unit, such as geophones, and the antennae for the unit are located along the major axis of the cylindrically shaped case to improve fidelity and timing functions.
G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
The transmission system combines a self-contained, wireless seismic acquisition unit and a wireless, line of site, communications unit to form a plurality of individual short-range transmission networks and also a mid-range, line of sight transmission network. Each seismic unit has a power source, a short-range transmitter/receiver disposed within a casing and a geophone disposed within the casing. Each wireless communications unit is formed of an elongated support structure on which is mounted an independent power source, mid-range radio transmitter/receiver; and a short-range transmitter/receiver configured to wirelessly communicate with the short-range transmitter/receiver of the acquisition unit. Preferably, when deployed, the acquisition unit is buried under the surface of the ground, while the wireless communications unit is positioned in the near vicinity of the buried unit so as to vertically protrude above the ground. The acquisition unit and the wireless communications unit communicate by short-range transmissions, while the wireless communications unit communicates with other seismic acquisition systems using mid-range radio transmission. When multiple seismic acquisition unit/wireless communications units are deployed in an array, the system can pass collected seismic and quality control data in relay fashion back to a control station and/or pass timing and control signals out to the array.
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
A wireless seismic data acquisition unit with a wireless receiver providing access to a common remote time reference shared by a plurality of wireless seismic data acquisition units in a seismic system. The receiver is capable of replicating local version of remote time epoch to which a seismic sensor analog-to-digital converter is synchronized. The receiver is capable of replicating local version of remote common time reference for the purpose of time stamping local node events. The receiver is capable of being placed in a low power, non-operational state over periods of time during which the seismic data acquisition unit continues to record seismic data, thus conserving unit battery power. The system implements a method to correct the local time clock based on intermittent access to the common remote time reference. The method corrects the local time clock via a voltage controlled oscillator to account for environmentally induced timing errors. The invention further provides for a more stable method of correcting drift in the local time clock.
G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
A method for performing a seismic survey in a water column includes providing a length of flexible cable from a cable storage device disposed on a vessel to a cable handling device adjacent the cable storage device. The flexible cable comprises a specific gravity that is greater than a specific gravity of water in the water column. The method further comprises routing the flexible cable to pass adjacent a workstation disposed on the vessel, deploying a free end of the flexible cable into the water column, attaching at least one of a plurality of seismic sensor units to the cable as the cable passes the workstation, and controlling the motion of the vessel and the rotational speed of the cable handling device to allow the flexible cable to rest on the bottom of the water column.
A coupler including an at least partially cylindrically shaped external body portion having a longitudinal axis, which further includes an integral first and second, axially opposed ends that have a taper along the longitudinal axis. The coupler includes an integral gate consisting of two axially opposed, disconnected tongue sections having an open space there between. The at least partially cylindrically shaped external body portion has an open space at least partially enclosed by an inner surface of the body portion and disposed over at least a portion of the at least partially cylindrically shaped external body portion. The external body portion is characterized by a maximum radial dimension, including a circumferential region of the at least partially cylindrically shaped external body portion intermediate the first and second axially opposed ends where the gate is disposed.
F16G 11/00 - Moyens pour attacher les câbles ou les cordes l'un à l'autre ou à d'autres objets; Chapeaux ou manchons à fixer sur les câbles ou les cordes
F16G 15/04 - Maillage des chaînes à largage rapide; Manilles d'assemblage
F16G 11/14 - Dispositifs ou pièces d'accouplement permettant la formation facile de boucles réglables, p.ex. agrafes d'étranglement; Crochets ou illets avec parties constitutives conçues pour permettre leur fixation rapide en n'importe quel point des câbles ou cordes, p.ex. par la formation de boucles
A coupler for a load-bearing, non-signal-transmitting cable includes a body portion having integral first and second ends and an integral gate having a key entry region, wherein the body portion has a free space at least partially enclosed by an inner surface of the body portion and the gate. A complimentary coupling ring includes an integral perimetal body having a head section, a foot section, and two arm sections therebetween, wherein at least one of the arm sections has a key region, further wherein the key region consists of a solid, integral portion of the at least one arm section. A coupler/coupling ring assembly includes a coupler and a coupling ring that is removeably engageable with the coupler. The coupler/coupling ring assembly is particularly suited for interconnecting lengths of load-bearing, non-signal-transmitting cable, particularly suited for, but not limited to, undersea applications such as attaching a seismic data recording device to the coupler via the coupling ring.
F16G 11/14 - Dispositifs ou pièces d'accouplement permettant la formation facile de boucles réglables, p.ex. agrafes d'étranglement; Crochets ou illets avec parties constitutives conçues pour permettre leur fixation rapide en n'importe quel point des câbles ou cordes, p.ex. par la formation de boucles
A method and apparatus for deploying a plurality of seismic sensor units into a water column is provided. In one embodiment, a marine vessel is provided. The vessel includes a cable storage device disposed on the vessel, a workstation disposed on a deck of the vessel, a ramp at least partially disposed on the deck, and a node storage and handling system disposed on the vessel. The node storage and handling system comprises a cable handler disposed between the cable storage device and the ramp, the cable handler having a cable disposed thereon and the cable defining a cable path passing over the workstation during a node deployment or retrieval operation, a node storage rack positioned between a bow and a stern of the vessel, and at least one conveyor belt to transfer nodes between the workstation and the node storage rack.
Embodiments described herein relate to an apparatus and method of transferring seismic equipment to and from a marine vessel and subsurface location. In one embodiment, a marine vessel is provided. The marine vessel includes a deck having a plurality of seismic sensor devices stored thereon, two remotely operated vehicles, each comprising a seismic sensor storage compartment, and a seismic sensor transfer device comprising a container for transfer of one or more of the seismic sensor devices from the vessel to the sensor storage compartment of at least one of the two remotely operated vehicles.
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