摘要
介绍了上覆地层压力和粘土吸水膨胀对套管挤压力以及大直径套管受外挤力失稳破坏的计算方法。解决了现场遇到的实际问题。
The overburden pressure and its side effect as wellas the pressure from clay swelling to the 529 mm casing pipe in a bore hole are discussed in the paper.The calculating method of the anti -collapsing strength of large--size casing pipe is introduced. And one casing trouble in the field site was successfully solved by using the calculating methed.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1995年第1期62-66,共5页
Coal Geology & Exploration
关键词
地层压力
计算法
大直径套管
抗挤压力
overburden pressure
anti--collapsing strength of casing pipe
calculating method
