To solve this problem, a special casing - TP130TT high collapsing strength heavy casing has been developed.
针对这一问题，开发了一种特殊套管——TP130 TT高抗挤厚壁套管。
Heavy torque and abrasion on casing are serious problems in drilling in slim hole.
高钻柱扭矩和套管过度磨损是小井眼钻井中存在的严重问题。
The Gudong oilfield is a large oilfield of heavy oil in loose sandstone reservoirs. The casing pipes were damaged in 386 wells during production.
孤东油田属大型稠油疏松砂岩油藏，在高速高效开发同时，累计发现套损井386口。
Casing failure mechanisms of thermal recovery Wells in sand production have become a problem to be urgently solved in heavy reservoir thermal recovery production.
热采井出砂套管损坏机理已成为稠油热采生产中迫切需要解决的问题。
In this paper a macro-cracking in the medium casing which is a heavy section casting of 261 turbogenerator was investigated by SEM, EDAX and others.
采用扫描电镜断口分析、微区能谱分析等方法研究了261汽轮机中汽缸大型铸件开裂问题。
Locking bar system, for heavy doors the rod is supplied undivided. Both ends can be connected to the gear mechanism. This allows any positioning of the gear casing.
锁拉杆系统，重型门用。交货时拉杆不分开。两端可与齿轮机构连接，这样便于齿轮壳的任何定住。
Locking bar system, for heavy doors the rod is supplied undivided. Both ends can be connected to the gear mechanism. This allows any positioning of the gear casing.
锁拉杆系统，重型门用。交货时拉杆不分开。两端可与齿轮机构连接，这样便于齿轮壳的任何定住。
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