国家/地区 中国（2）
IPC部 E（2）
IPC大类 E21（2）
IPC小类 E21B（2）
IPC
发明人 WANG X（2）
公开年 2023（2）
申请年 2021（2）
专利权人

System for performing temperature difference process underground flow measurement in oil-gas well, has graphene heating modules that are combined to form annular heating belt, which is fixed on outer wall of oil pipe, and temperature sensor measuring module provided with temperature sensor groups.

NIE F, HE Q, LIU Y, CHEN J, ZHANG G, LIU X, SHI Q, WANG X, AN B, ZHANG X

Soluble aluminum alloy useful for underground restrictor component, comprises gallium, tin, lead, copper, titanium, yttrium, silicon, nickel, tungsten carbide, fiber-shaped graphene, plated lanthanum oxide-copper modified basalt fiber, and aluminum.

ZHAO B, SONG H, ZHAO Z, WEI Y, BAI X, LIU S, XIAO S, YANG X, XIE Y, WANG X