产气压入式井壁取心器
gas generated press sidewall coring tool
电动钻进式井壁取心器
electrically-driven rotary sidewall sampler
electrically driven rotary sidewall sampler
旋转或旋进式井壁取心器
rotary sidewall coring tool
旋转式井壁取心系统
rotary sidewall coring tool
水力井壁取心器
hydraulic side-wall coring tool
切割式取心器
side wall cutting sampler