Abrégé

Performing a seismic survey in an aqueous medium is provided. A system can include a transfer device with a first vertical side and a second vertical side. The transfer device can include a chute to receive units. The chute extends from the first vertical side to the second vertical side. The chute has a first end at the first vertical side that is higher than a second end at the second vertical side opposite the first end to establish a first slope for the chute, which causes the units to slide from the first end towards the second end via gravity. The transfer device includes a retainer at the second end of the chute to be actuated by an arm of a first underwater vehicle that mates with the chute. The transfer device can be towed by a marine vessel via an unpowered rope.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• 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

Abrégé

A seismic data acquisition positioning apparatus (100) is provided. The apparatus can include a seismic data acquisition unit (105). 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 (110) including a beacon unit (115). The apparatus can include a connector (120) 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.

Classes IPC  ?

• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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 (402) is coupled with the sensor (300) to receive the electric signal. A test signal generator (406) is 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 (410) is 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.

Classes IPC  ?

• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

Systems and methods of deploying seismic data acquisition units from a marine vessel are disclosed. The system can include a mechanical attachment device comprising a cavity formed by interlocking a first member and a second member. Protrusions located on the first member and second member can increase the coefficient of friction between a rope and the mechanical attachment device responsive to an increase in tension on the rope. A lanyard can couple a seismic data acquisition unit to the mechanical attachment device.

Classes IPC  ?

• G01V 1/20 - Aménagements d'éléments récepteurs, p.ex. oscillogrammes géophoniques
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
• B63B 21/00 - Apparaux de manœuvre; Apparaux de déhalage, de remorquage ou de poussée; Ancrage
• 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
• B63B 21/08 - Dispositifs de blocage
• F16G 11/10 - Agrafes à fermeture rapide; Pinces serrant uniquement dans un sens

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
• B63G 8/00 - Navires submersibles, p.ex. sous-marins

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
• 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
• B63G 8/00 - Navires submersibles, p.ex. sous-marins

Abrégé

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.

Classes IPC  ?

• 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

Abrégé

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.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• G01V 1/02 - Production d'énergie sismique
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

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.

Classes IPC  ?

• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
• G01V 1/24 - Enregistrement des données sismiques