控压钻井技术在四川高石梯灯影组的应用  

The Application of Managed Pressure Drilling in Gaoshiti Dengying Layer of Sichuan

作　　者：左星 张华[2] 雷雨 

机构地区：[1]中国石油川庆钻探工程有限公司钻采工程技术研究院,四川广汉618300 [2]西南油气田分公司蜀南气矿,四川泸州646000

出　　处：《重庆科技学院学报（自然科学版）》2017年第1期51-54,66,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"窄密度窗口安全钻井技术与配套装备--控压钻井工艺技术研究与配套现场试验"(2011ZX05021-003)

摘　　要：四川高石梯灯影组储层,裂缝发育、安全密度窗口窄,常规钻井方式钻遇裂缝后井漏、喷漏同存,平均单井漏失量达751 m^3,严重影响了该构造油气勘探开发的进程。针对该构造由于安全密度窗口窄造成的系列井下问题,提出了解决这一问题的有效方式——控压钻井技术。2015年在该构造4口井进行了控压钻井技术应用,平均单井漏失110.5 m^3,应用效果良好。The crack is developed and the safe density window is narrow in Gaoshiti Dengying layer,Sichuan.There are lots of problems during the conventional drilling,such as heavy leakage and leaking with kicking,and the average leakage is 751 m^3. The problems hinder the process of exploring and exploiting the gas. This paper proposed that the proper downhole pressure controlled by MPD to solve the drilling problems. The MPD is applied to 4wells in Gaoshiti Dengying layer during 2015,and the average leakage is 110. 5 m^3. The application effect is very positive.

关 键 词：高石梯 灯影组 严重井漏 密度窗口 控压钻井 

分 类 号：TE242[石油与天然气工程—油气井工程]