国家/地区 中国（4）
IPC部 C（4）
IPC大类 C08（4）
IPC小类 C09K（4） C08F（3）
IPC C09K008/03（4）
发明人 BAI Y（2） CHEN M（2） HE Y（2）
TANG R（2） TANG W（2） WANG R（2）
XIE G（2）
公开年 2022（3）
申请年 2022（4）
专利权人 UNIV SOUTHWE.（2）

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

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

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