国家/地区 中国（6）
IPC部 C（6）
IPC大类 C09（6） C01（2） C08（2）
IPC小类 C09K（6） C01B（2） C08F（2）
IPC C09K008/03（6）
发明人 LUO C（3） GONG G（2） LI L（2）
LIU S（2） ZHANG Z（2） ZHOU C（2）
公开年 2023（6）
申请年 2022（4）  2023（2） 
专利权人 SINOPEC OILF.（3） DRILLING ENG.（2）

Hydrogel plugging agent useful in aqueous drilling fluid, comprises clay minerals, aluminum borate whisker composite modified bentonite, modified nano-graphene, lubricant comprising sulfonated castor oil, tackifier comprising xanthan gum, coupling agent and deionized water.

WANG X, DUAN X, LIU S, HUANG X, ZHAO J, DAI N, ZHANG M, WANG M, ZHANG Y, YANG Y, ZHU M

Temperature-resistant and oil-resistant composite graphite plugging agent for oil-based drilling fluid, comprises graphene oxide, modified graphene oxide, and polymer/graphene oxide with polyester, polyamide and/or polymethyl silicone resin.

LI Q

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

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

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