国家/地区 中国（17）
IPC部 C（17）
IPC大类 C09（17）
IPC小类 C09K（17） C08F（8） C01B（3）
C08K（3） C08L（2）
IPC C09K008/24（17）
发明人 WANG Y（4） CHEN H（3） GONG G（3）
LI L（3） LUO C（3） ZHANG Z（3）
ZHOU C（3） BAI Y（2） CHEN J（2）
DENG Y（2） GUO J（2） LI J（2）
LI X（2） LIU S（2） ZHANG H（2）
公开年 2022（6） 2023（6） 2021（3）
申请年 2022（7）  2021（4）  2020（3） 
专利权人 SINOPEC OILF.（5） CHINA PETROL.（3） DRILLING ENG.（3） UNIV SOUTHWE.（3）
SINOPEC RES .（2）

Raw material composition useful in preparing fluid loss control agent for drilling fluid, comprises e.g. prop-2-enamide, prop-2-enamidomethanesulfonic acid compound, bis(prop-2-en-yl)amine chloride compound, sodium 4-ethenylbenzene-1-sulfonate compound and modified graphene oxide.

LAN Q, ZHAO H, YAN B, LI X, WANG X, WANG B, LI Q

High temperature and high density water-based drilling fluid useful in the field of shale well petroleum and natural gas drilling, comprises e.g. water, bentonite, tackifier, alkalinity regulator, shale inhibition stabilizer, shale plugging agent, inorganic salt and weighting material.

SHU M, WU J, XU P, HE M, YOU F, XU M

New amphiphobic polymer containing acyl hydrazone bond useful for preparing nano-amphiphobic reversal agent containing an acyl hydrazone bond polymer for forming a wet adsorption layer on the surface of the formation core.

ZHANG C, LIANG S, CHEN M, XU N, LI D, SHI W, WANG Y

High-temperature and salt-resistant fluid loss reducer used for preparing high-density saturated brine drilling fluid, obtained by polymerization of acrylamidomethylpropanesulfonic acid, sodium p-styrenesulfonate, N-vinylpyrrolidone and dimethyl diallyl ammonium chloride.

CHEN X, LUO P, HU C, BAI Y

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

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

Water-based drilling fluid system comprises bentonite, sodium hydroxide, fluid loss agent, nano plugging agent, well wall enhancer, inhibitor, coating agent, fine calcium, composite salt, barite and water.

WANG Y, QUAN X, GUO J, WANG K, ZHAO Y, ZHAO H, YU Y, SHI H, HE J, JIANG F

Preparing graphene oxide nano hydrogel plugging agent for drilling fluid, involves putting an appropriate amount of graphite, sodium nitrate, and concentrated sulfuric acid in a three-necked flask, slowly adding an appropriate amount of potassium permanganate, and stirring.

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