井底正向燃烧    downhole forward combustion

井底气体燃烧器    downhole gas burner

井下气体分离器    downhole gas separator

井下梯度    downhole gradient

井下接地；井下电位参照点    downhole ground

井下震击钻头    downhole hammer bit

井下悬挂器    down-hole hanger

井下装置    downhole hardware

井下加热器    downhole heater

井底点火    downhole ignition

井下注入系统    downhole injection system

井下混合    down-hole mixing

井下马达    down-hole motor

井下定向    downhole orientation

井下封隔器    down-hole packer

井下工作性能    down-hole performance

井底堵塞材料    downhole plugging material

井底资料处理机    downhole processor

井下脉冲发生器    downhole pulser

井下泵    downhole pump

井下自动记录仪    down-hole recorder

井下大修作业    downhole remedial operation

井底防砂    down-hole sand control

井下传感器    downhole sensor

井下传感器组件    downhole sensor package

井下探测部分    downhole sensor section

井下封闭阀    downhole shut-off valve

井下状态字    downhole status word

井下蒸汽发生器    downhole steam generator

井下管柱    down-hole string

地面控制的井下阀    downhole surface-operated valve

井下遥测    downhole telemetry

井下遥测总线    downhole telemetry bus

井底遥测系统    down-hole telemetry system

井下测试    downhole testing

测井下井仪；井下工具    downhole tool

井下扭矩传感器    downhole torque sensor

井下牵引工具    downhole tractor tool

井下管材    downhole tubular goods

井下涡轮马达    downhole turbine motor

井下流体体积测量    down-hole volumetric measurement

井下钻压    downhole weight on bit