国家/地区 中国（13） 美国（6） 世界知识产权组织（5） 加拿大（3） 欧洲专利局（EPO）（3） 日本（2） 墨西哥（2）
IPC部 C（15）
IPC大类 C01（15） C09（15） B82（3）
C07（2） C08（2） E21（2）
IPC小类 C01B（15）
IPC C09K008/03（15）
发明人 BAI Y（4） LI W（4） LUO P（4）
DENG Y（3） GONG G（3） HE Y（3）
LI L（3） LUO C（3） XIE G（3）
ZHANG Z（3） ZHOU C（3） CHEN J（2）
DAI F（2） FAN Y（2） HUANG J（2）
公开年 2022（4） 2021（3） 2019（2） 2020（2） 2023（2）
申请年 2020（5）  2022（5）  2019（2） 
专利权人 UNIV SOUTHWE.（5） ARAMCO SERVI.（3） DRILLING ENG.（3） SAUDI ARABIA.（3）
SINOPEC OILF.（3） UNIV RICE WI.（2） UNIV RICE WI.（2）

Use of high aza-graphene nanosheet for water-based drilling fluid, where water-based drilling fluid is added with high aza-graphene nanometre sheet, high aza-graphene nano sheet is prepared by premixing raw material inorganic salt, carbon-containing compound and nitrogen-containing organic compound.

GONG G, ZENG C, CHEN H, LI L, ZHANG X, ZHANG Z, WANG F, LUO C, ZHOU C

Application of high-nitrogen heterographene nanosheet in oil-based drilling fluid e.g. white oil-based drilling fluid.

LIU S, GONG G, CHEN J, LI L, DENG Y, ZHANG Z, LI J, ZHOU C, LUO C, ZHANG H

Anti-collapse drilling fluid useful in oil and gas drilling, comprises base oils, organic soils, emulsifiers, plugging and anti-slump agents, fluid loss control agents, inhibitors, pH regulators, weighting agents and flow regulators, where anti-slump agent comprises inorganic rigid particles.

DAI F, LI W, HUANG D, XIE G, LUO P, LI D, BAI Y

Modifying aqueous and oil-based drilling fluids by aza-graphene nanosheets involves preparing aza-graphene nano-sheet with high nitrogen content into aqueous solution and then mixing with the existing aqueous or oil-based drilling fluid, and using inorganic salts.

LIU S, GONG G, CHEN J, LI L, DENG Y, ZHANG Z, LI J, ZHOU C, LUO C, ZHANG H

Functionalized graphene oxide plugging agent comprises graphene oxide, styrene, acrylate compound, persulfate, acrylic acid compound, sodium dodecyl sulfate, aminosilane compound, nonylphenol polyoxyethylene ether, and is prepared by mixing raw material into reactor filled with distilled water.

CHEN M, TANG R, TANG W, BAI Y, WANG R, HE Y, XIE G

Preparing modified nano-graphene slurry anti-slump agent useful in micro-fracture pores developed in basalt comprises carrying first contact between nano-graphene and mixed acid, adding potassium chlorate to mixed solution for modification treatment and contacting modified nano-graphene with water.

LI W, DAI F, XIE G, LUO P, ZHANG J, LIU D, BAI Y

Graphene oxide Janus nanosheet relatively permeability modifier for reducing water permeability in carbonate formation, comprises graphene oxide nanosheet having first and second sides, first and second alkyl groups and functional group.

LI W, LIANG F, HUANG J

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

Water-based wellbore fluid comprises aqueous base fluid and modified graphene shale inhibitor that comprises one or more substituents that are covalently bonded to graphene via linking group, one or more substituents is hydrocarbon group.

SALEH T A, ALARFAJ M K, RANA A A

Carbon-based nano-wetting reversing agent useful in drilling fluid, comprises modified nano-graphene oxide, surfactant and solvent I.

ZHAO F, TAO Z, XU J, XU S, YU B, WANG Y