摘要
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。同时 ,为了优选钻井液体系 ,研究了流体介质对煤岩强度的影响 ,并分析了作用机理。
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. Meanwhile, the influences of fluid media on the strength of coal rocks are studied and the mechanisms are also analyzed to optimize drilling fluid systems.
出处
《石油钻探技术》
CAS
北大核心
2000年第3期21-23,共3页
Petroleum Drilling Techniques
关键词
煤层
井眼坍塌
流体力学
实验室试验
钻井
coal bed,fluid,mechanics,laboratory testing,tensile strength,compressive strength,rock sample,rock property
