国家/地区 中国（3）
IPC部 C（3） E（2）
IPC大类 C04（3）
IPC小类 C04B（3） C09K（3） E21B（2）
IPC C04B028/02（3）
发明人
公开年 2021（2）
申请年 2020（2） 
专利权人

Phase change concrete comprises cement, microcapsule phase change material, aggregate and water, where core of microcapsule phase change material is made of thermally conductive metal.

YANG C, CHEN J, DING Y, DENG M, XU F

Well wall reinforcing composition for crushing stratum, comprises cement, cementing agent, interface strengthening agent, 1active filling agent, high temperature stabilizer, and water, where cementing agent comprises epoxy resin and epoxy resin emulsifier, plasticizer, and nanomaterials.

ZHANG D, ZHANG F, WU X, SONG B, LIU S, LIU J, LI F, LI D

Determining integrity of well in oil and gas industries, involves mixing conductive materials into fluid, allowing conductive materials to surface coating, and transmitting data through electrically conductive data conduit coating.

BOUL P J, SANTRA A