国家/地区 中国（10） 美国（3） 世界知识产权组织（3） 欧洲专利局（EPO）（2）
IPC部 C（12）
IPC大类 C09（12） C04（5） E21（5）
IPC小类 C09K（12） C04B（5） E21B（5）
IPC C09K008/467（12）
发明人 CHEN H（2） GONG H（2） GUO W（2）
LI D（2） LI F（2） LIU H（2）
LIU J（2） LV A（2） SANTRA A（2）
WAN G（2） WANG Y（2） WU B（2）
WU H（2） WU X（2） XU C（2）
公开年 2021（12）
申请年 2020（6）  2021（4）  2019（2） 
专利权人 ARAMCO SERVI.（3） SAUDI ARABIA.（3） CHINA PETROL.（2） SINOPEC EAST.（2）
SINOPEC OILF.（2） SINOPEC RES .（2） WU H（2）

Well wall repairing agent for crushing stratum, comprises superfine cement, elastic binder, high temperature stabilizer, interface reinforcing agent, water, where the elastic adhesive comprises elastic epoxy resin, epoxy resin emulsifier.

ZHANG Y, ZHANG D, WU X, ZHAO S, LIU J, WANG W, LI F, LI D, JIN J

Well wall reinforcing composition for crushing stratum, comprises cement, cementing agent, interface strengthening agent, 1active filling agent, high temperature stabilizer, and water, where cementing agent comprises epoxy resin and epoxy resin emulsifier, plasticizer, and nanomaterials.

ZHANG D, ZHANG F, WU X, SONG B, LIU S, LIU J, LI F, LI D

Graphene oxide Janus nanosheet crosslinker for carbonate formations, comprises graphene oxide nanosheet has first side and second side, alkyl group bonded to the first side.

LI W, LIANG F, HUANG J

Plugging method for nano-micron developed shale pores, involves adding high temperature resistant reservoir plugging agent to polyamine water-based drilling fluid base slurry and stirring evenly to make a drilling fluid plugging slurry, plugging performance evaluation test of the leakage slurry.

LV A, GUO W, WAN G, CHEN H, XU C, WANG Y, GONG H, ZHENG H, WU B

Aqueous-based drilling fluid useful for shale high temperature reservoir comprises water, sodium-based bentonite, composite metal ion polymer MMCA, hydrolyzing polyacrylonitrile ammonium salt, polyamine, white asphalt, superfine calcium carbonate and barite.

WANG Y, LV A, GUO W, WAN G, WU B, GONG H, XU C, CHEN H, ZHENG H

Cement comprises acetylene sulfide, tricalcium silicate, tricalcium aluminate, calcium aluminoferrite, zirconium silicate, low hydration active material, reinforcing agent, anti-shrinking agent and 0early strength agent.

LIU H, ZENG X, GU A

Temperature-responsive cementing slurry comprises oil well cement, bidirectional intelligent temperature control material, mixing water, dispersant, and fluid loss agent.

HUO J, CHE Y, ZHANG C, LIU H, ZUO W, YU B

Sealing propagating cracks in sensor-laden cement sheath involves monitoring electrical resistivity of sensor-laden cement sheath to produce measured value, where sheath comprises conductive sensor, on-demand expanding agent, and cement.

MUSSO S, SANTRA A

Polymer gel composite plugging agent comprises quaternary ammonium salt grafted chitosan, layered silicate in which part of metal ions are replaced by hydrogen ions, sodium silicate aqueous solution, and sodium polyacrylate blend rubber.

WU H

Nano plugging agent useful in drilling fluid plugging comprises white oil, graphene, modifier, nano calcium carbonate, nano silica and stabilizer.

JIN X, DENG X, PENG S, TAN W