国家/地区 中国（5） 世界知识产权组织（2）
IPC部 C（7）
IPC大类 E21（7）
IPC小类 E21B（4） C04B（3） C09K（3）
E21D（2）
IPC C04B028/04（2）
发明人
公开年 2022（7）
申请年 2022（7）
专利权人

Well drilling plugging method for malignant leakage stratum, involves preparing delayed cross-linking type polymer gel plugging slurry on construction site, and using slurry, and pumping polymer gel leakage-stopping slurry into drill stem to fill whole drill stem.

NING X, DING B, YANG B, REN T, QIAO G, LONG H

New-type grouting material with stratum for breaking fractured zone rich in water, comprises GO-FA synergistic effect modified cement grouting material, where GO is oxidation graphene FA is fly ash, proportion is oxide graphene, cement, fly ash, accelerating agent and preparing new grouting material.

LIAO C, LIN B

Cementitious composite comprises modified aggregate material, where modified aggregate material is configured from fine aggregate particles pretreated with graphene oxide, where graphene oxide is further arranged as crosslinked structures that arranges for refined interfacial zone.

SHI X, ZHONG J

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

Phase-change hydrated salt polymerization filling material, comprises polyether polyol, foaming agent, flame retardant and heat conducting material, polymeric MDI and adhesive, polyether polyol, silicone oil and composite phase-change nano material.

ZHU Y, SHI C, LI J, LIU J, LIN Y, ZHANG P, XIN H

Active powder concrete for tunnel construction and maintenance and strengthening, comprises common silicate cement, superfine mineral powder, silicon ash, fly ash, expansion agent, sand, carbon black.

GU Z

Thickening agent comprises nanometer silicon dioxide, graphene, fluorocarbon non-ionic surfactant, cocamide betaine, olefin sulfonate, and distilled water, prepared by adding above raw materials, stirring and mixing, adding nano silicon dioxide and graphene, continuously stirring and oscillating.

GAO Q, LIU Y, HUANG H, WANG H, ZHANG Y, ZHOU D, LIU X