高峰XS型方钻杆旋塞阀.ppt
XS型方钻杆旋塞阀.ppt
XG型套铣管.ppt
XFQ型悬浮器.ppt
WTJ型固定角度弯接头.ppt
WH型可换套稳定器.ppt
WHG型可换套滚子稳定器.ppt
WD-S型水力式外割刀.ppt
WD-J型机械式外割刀.ppt
drilling fluid dril...
exploring and drill...
drilling chapter1
Well integrity in d...
Deepwater Drilling ...
A PRE-DRILLING ...
Fluid for Drilling
Drilling Office指南
1 钻井工程Drilling Engi...