岩石可钻性和各向异性实验及结果分析  

ANALYSIS ON ROCK DRILLABILITY AND AN1SOTROPY EXPERIMENT

作　　者：齐林[1] 王新清 刘修善[1] 杜卉[1] 

机构地区：[1]大庆采油研究所,辽河油田

出　　处：《大庆石油学院学报》1995年第4期121-124,共4页Journal of Daqing Petroleum Institute

基　　金：国家"八.五"重点攻关项目

摘　　要：从辽河油田的冷４３井、冷６７井，冷８７井、冷１２５井钻取岩心，进行了岩石可钻性和地层各向异性实验。实验结果可知：钻井地区沙三段地层存在明显的各向异性，地层因素将对水平井井眼轨道产生重要的影响作用；由于同一沙三地层不同埋深岩石可钻佐用差较大，个别埋深岩石中存在位径不同、非均匀分布的大颗粒砾石，该层段井眼轨道控制预测会有很大的风险性和困难性。Rock drilliability and stratum anisostropic experiments are carried out with the cores of,well Leng 43,well Leng 67,well Leng 87,well Leng 125 in Liaohe oilfeild. Analysis ofexperiment results show that obvious anisotropy is present in stratum rock drilled in Shasanregion. It has important effect on horizontal well borehole trajectory.Because in the sameShasan stratum of different burried depth,drillability is quite different.Therefore the bore-hole trajectory control and its prediction are harder to achieve.

关 键 词：岩石 可钻性 各向异性 井眼轨道 预测 钻井 

分 类 号：TE21[石油与天然气工程—油气井工程]