论文详情

垦利6-4区块含玄武岩地层钻探难点与对策探讨

海洋石油

2012年 32卷第1期

阅读：132

查看详情

Title

Drilling Difficulty and Countermeasures of Basalt Formation in KL6-4 Block

作者

刘小刚赵少伟冯占军边杰李鑫

Authors

LIU Xiaogang ZHAO Shaowei FENG Zhanjun BIAN Jie LI Xin

单位

中海石油(中国)有限公司天津分公司, 天津塘沽 300452; 中海油能源发展监督监理技术公司, 天津塘沽 300452

Organization

Tianjin Branch of CNOOC Ltd., Tanggu Tianjin 300452, China; CNOOC Supervision and Technology Company, Tanggu Tianjin 300452, China

摘要

地层可钻性差,岩石易水化膨胀是玄武岩地层钻探的主要难点。利用垦利6-4区块已钻井的测井资料对玄武岩地层可钻性以及井壁失稳机理进行了分析研究。并据此提出相应的技术措施,包括合理的钻头和钻具组合优化,以及良好的钻井液性能等。现场作业中,按照上述技术措施,实现了玄武岩地层的安全高效施工。

Abstract

Poor drillability and hydration expansion is the main difficulties while drilling basalt formation. Drillability and borehole instability of the basalt formation in KL6-4 Block was analyzed in this paper. Field application showed that bit and BHA optimizing and good mud property are the effective measures while drilling through the basalt formation.

关键词：

玄武岩; 可钻性; 井壁失稳; 钻头设计;

Keywords:

basalt; drillability; borehole instability; bit optimization;

基金项目

DOI

https://doi.org/10.3969/j.issn.1008-2336.2012.01.088