Well bore sloughing is very serious while drilling the coal beds in Jurassic & Triassic in Yiqikelike area, Tarim basin. In order to discuss the sloughing mechanism, experimental study on uniaxial tensile strength and triaxial compressive strength are.

• 在钻遇塔里木盆地依奇克里克区块的侏罗系和三叠系煤层时 ,井壁坍塌十分严重 ,为了探讨煤层坍塌的力学机理 ,进行了单轴抗拉强度和三轴抗压强度实验研究。