allocation factor for oil well and water injector  油水井分配系数

biased-valve oil well pump  偏置阀式抽油泵

blow-out oil well  失控喷油井

C90 Oil-Well Tube Steel  C90级油井管钢

casing of oil well  油井套管

cement in oil well  油井水泥

class A oil well cement  A级油井水泥

class D oil well cement  D级油井水泥

commercial oil well  具开采价值的油井

deep oil well  深井

deep well oil pipeline  深井石油管道柱

Detector for Sensing Oil-well Data  井下参数测试仪

distribution of artesian oil well  钻井布局

Dynamic of oil well  油井动态

dynamics of oil well  油井动态

electric pump oil well  电泵井

electrical heating rod+feedback viscous oil well pump  电热杆+反馈式抽稠泵

fixing oil well  固井

G grade oil well cement  G级油井水泥

G high sulfur resistant oil well cement  G级高抗硫油井水泥