煤矿安全2018，Vol.49Issue(3)：72-74,3.DOI:10.13347/j.cnki.mkaq.2018.03.019
复杂条件下煤层气钻井堵漏技术研究
Study on Leakage Plugging Technology of CBM Drilling Under Complex Geological Conditions
倪光清 1薛晓辉 2周炳朝 1王有国1
作者信息
- 1. 云南省核工业二0九地质大队,云南昆明650105
- 2. 云南煤层气资源勘查开发有限公司,云南昆明655000
- 折叠
摘要
Abstract
In view of the leakage problems encountered in the drilling process in the study area,a plugging technique for different leakage sizes and leakage velocity is developed based on the analysis of geological conditions.The leakage type mainly includes the pressure induced leakage and fracture loss of sand shale,and we propose the corresponding measures that the compound plugging agent,one-way closure and sawdust are added in the sand-mudstone of seepage and longitudinal fissure;when the leakage is large,using the larger particles of bentonite soil,cotton seed shell can appropriately increase the viscosity of drilling fluid for plugging.关键词
煤层气井/井漏/堵漏技术/钻井液/漏失问题Key words
CBM well/circulation loss/leak plugging technology/drilling fluid/leakage problem分类
矿业与冶金引用本文复制引用
倪光清,薛晓辉,周炳朝,王有国..复杂条件下煤层气钻井堵漏技术研究[J].煤矿安全,2018,49(3):72-74,3.
