地面控制的井下阀
downhole surface-operated valve
井下流体分析
Downhole Fluid Analysis DFA
amphibian cell lines
井下流体体积测量
down-hole volumetric measurement
双感应-八侧向测井下井仪
dual induction-laterolog-8 equipment
双感应聚焦测井下井仪
dual induction focused log instrument
水平井井下工具
downhole tool for horizontal wells
微球形聚焦测井下井仪
micro-spherically focused tool
MSFT
直井井下马达
straight-hole downhole motor