国家/地区 中国（4）
IPC部 C（4）
IPC大类 C04（2） C09（2）
IPC小类 C04B（2） C09K（2）
IPC
发明人 WANG M（4）
公开年 2023（4）
申请年 2021（4）
专利权人 CHINA PETROL.（2） SINOPEC RES .（2）

Preparing and purifying nanoparticles of plasma ammoniated graphene-magnetic core structure, comprises placing nanoparticles of graphene-magnetic core structure in processing chamber, carrying out ammonia modification of nanoparticles, and removing non-magnetic free graphene.

LI Y, WANG M, MA Z, WANG Q

Oil well cement retarder useful in the field of oil fields, comprises reinforcing agent, stabilizing agent, tartaric acid, sodium glucoheptonate, sodium gluconate and deionized water.

MU H, MIAO X, WEI H, LIU X, WANG M, ZHOU S, LIU J

Graphene layer complex used in the field of oil and gas well cementing, comprises graphene oxide and polymer grafted on the graphene oxide, and the polymer comprises a structural unit derived from 2-acrylamide-2-methylpropanesulfonic acid and a structural unit derived from the second monomer.

LIU J, MIAO X, WEI H, ZHOU S, WANG M

Polymer-based elastomer plugging agent for drilling fluid, comprises polymer elastomer matrix material, reinforced polymer elastomer material, reinforcing material, functional filler and initiator which is photo or thermal initiator.

NIE Q, XIE X, ZHANG K, XIAO F, LI M, WANG M, DENG Z, ZHAO Z, CHENG K