国家/地区 中国（7） 美国（3） 世界知识产权组织（3）
IPC部 C（11）
IPC大类 E21（11）
IPC小类 E21B（9） C09K（6） C04B（2）
C08K（2） C08L（2）
IPC C09K008/80（3） C08K003/04（2） E21B043/267（2）
发明人
公开年 2023（11）
申请年 2022（11）
专利权人 SAUDI ARABIA.（2）

Grouting material useful for tunnel secondary lining, comprises cement, fly ash, quartz sand, silicon dioxide gas gel, graphene, dispersant, plastic expanding agent, expansion agent, antifoaming agent and low viscosity cellulose.

HAN D

Pre-flush chemical used in scale inhibitor squeeze treatment, comprises carbon compound, surfactant, and solvent.

ZAINAL S, RAZALI N, RODZALI M A, MUHSAN A S, MOHAMED D F H

Composition useful for conductive propping agent, comprises aggregate core, high molecular material, conductive agent, curing agent and surface modifying agent, where high molecular material includes thermoplastic resin and water-soluble high molecular material.

NIU Y, ZHOU Y, LIU F, LI Y, XU Q

Producing nanoparticle coated proppant with nanoparticle proppant coating used for increasing rate of hydrocarbon production from subsurface formation, involves reacting nanoparticles with at least one of alkoxysilane solution or halosilane solution to form functionalized nanoparticles.

SAYED M, HAQUE M H, SAINI R K

Oil-displacing agent comprises graphene oxide-carbon nanotube compound, where graphene oxide-carbon nanotube composite is sheet-fibrous composite structure, and prepared by mixing graphene oxide powder and carbon nanotube powder, stirring and grinding in powder state to obtain mixed powder.

LU X, WANG M

Oil-resistant rubber core material used in oil-resistant core, comprises rubber matrix, carbon black, vulcanizing agent, anti-aging agent, accelerator, plasticizer, lubricant, and heat-conducting material.

LI C, JIANG L, LIU Q, LI S, REN W, LEI Y, WU Q, TANG G, ZUO X, LIU X

Preparation of high-performance thread used in oil and gas application, by processing steel threads, spraying polyurea elastomer on surface of external thread, curing polyurea elastomer, applying long-chain polymer glue on surface of thread and spraying solid lubricating particles on polymer glue.

SI X, WANG K, LI H, FANG X, YANG T, LV S, LUO Y, ZHANG X, NAN B, YANG Z, TUO C, ZHANG Y

Fluid system component used in fluid transport, fluid control, fluid operations has body containing multidimensional shape defined in orthogonal directions and layers stacked along one of directions.

MARYA M, ZOLFAGHARI A, KARUPPOOR S S

Coated proppant used for protecting proppant particle, comprises proppant particle, surface copolymer layer surrounding proppant particle, where surface copolymer layer comprises copolymer of monomers chosen from e.g. styrene, methyl methacrylate, ethylene, propylene, butylene, and acrylamides.

LI W, ALSHARAEH E, KRISHNAN M R

Reducing friction and torsion of water-based drilling fluid involves pumping thick slurry to well bottom, well washing, pumping slurry containing first liquid lubricant, to well bottom, pumping well mud containing solid lubricant to well bottom, drilling, where well mud supplements second lubricant.

HE M, XU P, YOU F, HUANG Z, WANG T, WU Y, XU M, BAN G