国家/地区 中国（2）
IPC部 B（3）
IPC大类 E21（3）
IPC小类 E21B（3）
IPC
发明人 ZHANG X（2）
公开年 2023（3）
申请年 2022（3）
专利权人

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

Preparing composite weakly-gel material in oil displacement agent for oil field development, involves uniformly dispersing graphene oxide in aqueous solvent to obtain graphene oxide suspension and adding partially hydrolyzed polyacrylamide to the graphene oxide suspension.

WANG N, YAO Y, ZHANG X