国家/地区 中国（7）
IPC部 C（7）
IPC大类 C09（7） C01（3） C08（3）
IPC小类 C09K（7） C01B（3） C08F（3）
IPC C09K008/24（7）
发明人 GONG G（3） LI L（3） LUO C（3）
ZHANG Z（3） ZHOU C（3） BAI Y（2）
CHEN J（2） DENG Y（2） LI J（2）
LIU S（2） ZHANG H（2）
公开年 2023（4） 2022（3）
申请年 2022（7）
专利权人 DRILLING ENG.（3） SINOPEC OILF.（3） UNIV SOUTHWE.（2）

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

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

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