Abrégé

The present disclosure provides methods and techniques for manufacturing proppant or lost circulation material from drilling cuttings. In an example embodiment, a method for manufacturing proppant or lost circulation material from drilling cuttings includes obtaining solid drilling cuttings from drilling fluid, removing any remaining hydrocarbon from the solid drilling cuttings, and rending the solid drilling cuttings into a powder form. The method further includes using the powdered drilling cuttings as raw material in a proppant or lost circulation material manufacturing process. In an example embodiment, the proppant or lost circulation material manufacturing process can be sintering or flame spheroidization.

Classes IPC  ?

• C09K 8/80 - Compositions pour renforcer les fractures, p.ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
• E21B 21/06 - Dispositions pour traiter les fluides de forage à l'extérieur du trou de forage

Abrégé

The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium)dication as a structure-directing agent, and its use in the reduction of oxides of nitrogen in a gas stream such as the exhaust from an internal combustion engine.

Classes IPC  ?

• B01D 53/56 - Oxydes d'azote
• B01D 53/86 - Procédés catalytiques
• C01B 39/00 - Composés ayant des propriétés de tamis moléculaires et d'échangeurs de base, p.ex. zéolites cristallines; Leur préparation; Post-traitement, p.ex. échange d'ions ou extraction de l'aluminium

Abrégé

A lubricating oil having a CCS viscosity at −15° C. less than 7000 cP, good shear stability, and a TBN between 8 and 20 comprising: a) a lubricating base oil made from a waxy feed, b) an engine oil additive package formulated to protect silver bearings, and c) less than 2.0 wt % viscosity index improver. Also a process to make a lubricating oil having a CCS viscosity at −15° C. less than 7000 cP, good shear stability, and a TBN between 8 and 20. Additionally, a lubricating oil having low CCS viscosity comprising specified amounts of lubricating base oil made from a waxy feed, engine oil additive package formulated to protect silver bearings, up to 55 wt % bright stock with a VI greater than 120, and no viscosity index improver or conventional pour point depressant additives. Also, a method for operating a railroad engine using the lubricating oil of this invention.

Classes IPC  ?

• C10G 71/00 - Traitement par des méthodes non prévues ailleurs d'hydrocarbures ou des huiles grasses en vue de lubrification