国家/地区 中国（18）
IPC部 C（18）
IPC大类 C08（18）
IPC小类 C08F（18）
IPC C08F220/58（18）
发明人 AN Y（2） BAI Y（2） DONG X（2）
JIN J（2） LI X（2） LIU X（2）
PEI W（2） SHI J（2） WANG W（2）
WANG Y（2） XU J（2） XU M（2）
XU P（2） ZHANG C（2）
公开年 2023（6） 2021（4） 2022（4） 2018（2）
申请年 2022（8）  2021（3）  2018（2）  2019（2） 
专利权人 CHINA PETROL.（2） NINGBO FENGC.（2） PEI W（2） SINOPEC RES .（2）
UNIV SOUTHWE.（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

Thick oil viscosity reducer composition useful for viscosity reduction of heavy oil transported by pipelines, and viscosity reduction of heavy oil in cold recovery comprises low molecular weight amphiphilic polymers and nano-hydrophobic modified materials.

MA C

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

Preparation of polymer microspheres/graphene oxide emulsion used for stripping oil, involves emulsifying and polymerizing by dissolving aqueous phase, pouring into oil phase obtained from oil medium, passing inert gas and adding reducing agent.

YU Z, LI Z, ZHOU S, YANG D

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

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

Nano low-friction temperature-sensitive drag-reducing thickener useful in oil-displacing fracturing fluids comprises thickener prepared by coupling nanomaterials and graft-modified temperature-sensitive thickening polymers with coupling agents.

NIU Q, CAI W, YU S, XU Y, SHI J, WANG Z, AN Y

New acralate-sodium sulfate containing acrylate-quaternary ammonium-containing ethylene based temperature-resistant and salt-tolerant copolymer useful in oil-displacing polymer for oil displacement in high calcium and magnesium environment.

LIU L

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