国家/地区 中国（16）
IPC部 C（16）
IPC大类 C09（16） C08（5） C01（4）
B82（2） E21（2）
IPC小类 C09K（16） C01B（4） B82Y（2）
C08F（2） C08K（2） C08L（2）
E21B（2）
IPC C09K008/03（16）
发明人 BAI Y（5） XIE G（5） FU L（4）
TANG W（3） WANG R（3） CHEN M（2）
DAI F（2） HE Y（2） LI W（2）
LIU C（2） LIU S（2） LUO P（2）
TANG R（2） WU X（2） XU Q（2）
公开年 2022（16）
申请年 2022（7）  2020（5）  2021（4） 
专利权人 CHINA PETROL.（5） UNIV SOUTHWE.（5） SINOPEC OILF.（3） CHINA PETROL.（2）
DRILLING TEC.（2） SINOPEC DALI.（2） SINOPEC SHEN.（2）

Plugging type fluid loss agent for oil-based drilling fluid, comprises oxidized graphene, concavo-convex rod-shaped stone, initiator, silane coupling agent, cross-linking agent, matrix asphalt and aggregate monomer, aggregate monomer is synthesized by acrylamide and acrylic acid.

YUAN X, WU L, SHI 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

Modified cationic emulsified asphalt useful in drilling fluids, preferably high temperature and high pressure deep wells, comprises e.g. oxidized asphalt, asphalt-based graphene oxide micro-sheet, long chain fatty amine cationic emulsifier, hydroxymethyl cellulose, calcium chloride and water.

YAO Q, XU Q, LI Z, FU L

Modified emulsified asphalt useful for aqueous drilling fluids, preferably high temperature and high-pressure deep wells, comprises e.g. oxidized asphalt, aminated graphene micro-sheet, terpene resin, hexadecyltrimethylammonium chloride, hydroxymethyl cellulose, calcium chloride, and water.

YAO Q, WU X, WANG K, FU L

Polyacrylate-grafted graphene oxide plugging agent useful in oil-based drilling fluid, comprises graphene oxide, aminosilane compound, acrylate compound, and acrylamide compound.

TANG W, BAI Y, HUANG J, WANG R, XIE G

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

Lubricating plugging fluid loss agent for drilling fluid,comprises functional monomer,graphene oxide, water, oil phase dispersion medium, paraffin, composite emulsifier and initiator, which is prepared by adding all the raw materials, oil phase dispersion medium and paraffin into reaction kettle.

GE Q, WANG L, ZHAO H, ZHENG C, YAN B, WANG B, LIU J, LI X, LI Q

Terminal amino hyperbranched polymer graft graphene oxide plugging agent useful for drilling fluid, comprises graphene oxide, acrylate compound e.g. butyl acrylate, amine compound e.g. ethylenediamine, epichlorohydrin and cellulose e.g. ethyl cellulose.

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

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

High-efficiency deep well drilling fluid treatment agent comprises water, lignite resin, formaldehyde, phenol, sodium metabisulfite, polyanionic vinyl ester, hydroxide, bentonite, potassium chloride and graphene oxide.

JIA Z, LIU C, MA P, JIA H