摘要
中原油田是地质情况较为复杂的断块油气田 ,断层多、地层破碎、存在复合盐层、地层压力变化突出。随着大斜度井大位移井的增多 ,电测阻卡和测声幅遇阻现象十分普遍 ,生产出现了前所未有的被动局面。通过深刻分析原因 ,解剖出现的种种问题 ,加强了钻井液室内配方的研究 ,全方位做好小型试验 ,总结出一整套解决电测遇阻的系统配套技术 ,包括钻井液性能维护、钻井过程中的井眼准备、后期钻井液的处理及工程措施 ,大大提高了电测成功率 ,完井时间大幅度缩短 ,取得了显著的经济效益。
Zhongyuan Oilfield is a complex fault block oilfield.It has some features,such as:there are lots of fault and some compound salt formation,formation often break and formation pressures often change.With the increase in high angle deviated hole and extended reach well,the sticking often happens in amplitude logging and electric logging,so that the operation is worse than before.Through analyzing reasons,the research on drilling fluid formulation is done,and corresponding matching technologies are summarized which can solve the well slough of electric logging,including the performance maintenance of drilling fluid,borehole preparation during drilling,treatment of drilling fluid in later stage and drilling procedure etc..Thus success ratio of electric logging is improved and the completion time is shorten.Meanwhile,obvious economic benefits are got.
出处
《钻采工艺》
CAS
2002年第5期20-22,共3页
Drilling & Production Technology
