国家/地区 中国（23） 美国（2）
IPC部 C（25）
IPC大类 C08（25）
IPC小类 C08F（25）
IPC C08F292/00（25）
发明人 WANG Y（5） LIU H（4） CHEN S（3）
AN Y（2） CAO R（2） CHEN Y（2）
HU M（2） JIANG H（2） MA J（2）
TAO Z（2） WANG X（2） XU J（2）
YU B（2） YU Y（2） ZHANG H（2）
公开年 2021（8） 2022（5） 2017（4） 2015（2） 2023（2）
申请年 2021（8）  2017（3）  2020（3）  2022（3）  2011（2）  2015（2） 
专利权人 NINGBO FENGC.（4） UNIV TIANJIN.（2）

Preparing negatively charged graphene oxide-based drilling fluid loss reducer, comprises dispersing graphene oxide in solvent, adding organic amine, negatively charged monomer, 4,4'-azobis(4-cyanovaleric acid) as initiator and amide condensing agent and carrying out polymerization reaction.

LI H, YI S, DONG H

Preparing powdery, drag reducing agent for drilling fluid, involves adding modified graphite powder and rubber powder to mixture of styrene, catalyst and crosslinking agent, polymerizing formed mixture with polymer, where weight ratio of styrene, graphite powder, rubber and polymer used, is preset.

LI Y, XIE L, ZHU G, XIA H, ZENG Y, QIN B, YE L, LUO C, LIU Y, ZHAO S, YANG J, LIU H, LI S

Composition of matter useful for lubricating a tool surface, comprises mono-facial polymer-grafted graphene particle and aqueous-based drilling fluid.

SANTRA A, THAEMLITZ C

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

Preparing nanometer viscosity reducer useful in viscosity reduction of thick oil comprises mixing raw materials containing nanometer template agent, reaction initiator, graft modified monomer and initiator, and obtaining the nanometer viscosity reducer.

WANG Y, YU B, LIU L, DENG Q, MA Y, CHEN S, WU W, TIAN Y, TAO Z

Preparing polymerizable nano monomer with photothermal conversion effect useful in e.g. soft robot comprises preparing functional nanomaterials with photothermal conversion efficiency, coating surface with silicon layer, aminating and carrying out amidation reaction.

YANG Y, YANG X, CHEN Y, WANG L

Preparing anti-wax scale remover used in wax control and scale removal of oil pipes, involves uniformly dispersing graphene oxide powder in water solvent under action of ultrasonic waves to obtain graphene oxide suspension.

LIU W, YAN W, YAN Y

Preparing anti-carbon heat conducting liquid involves firstly using nano-rod crystal attapulgite, polyacrylonitrile and copper powder as raw material, and preparing nano-rod crystal attapulgite-doped graphene composite.

HU M, CHENG J, LIU F, SHEN Q

Ultra-high temperature modified polymer cementing fluid loss reducing agent useful in e.g. deep well ultra-deep well, comprises graphene oxide, initiator, 2-acrylamido-2-methylpropanesulfonic acid, unsaturated amide, unsaturated carboxylic acid, and water.

ZHANG S, DING Z, ZHOU C, LV B, SHEN J, LIU Z, ZHANG C, LIU H, ZHANG H, XU M, QI F, LIU S, JIN J, XU P, YU Y, XIA X

Water-soluble nanomaterial used as thick oil viscosity reducing and oil-displacing agent, obtained by grafting viscosity reducing monomer, hydrophilic monomer and active monomer on double bond modified nano material.

ZHANG J, WU Z, CUI H, CHEN B, ZHANG K, YU B, WANG Y