云南化工2024，Vol.51Issue(6)：67-70,4.DOI:10.3969/j.issn.1004-275X.2024.06.17
深层煤层气防塌钻井液优化研究
Optimization Study of Anti-Collapse Drilling Fluid for Deep Coalbed Methane
于文强 1杨书港 2张林鹏 2权曌3
作者信息
- 1. 西安石油大学 石油工程学院,陕西 西安 710065
- 2. 辽河油田勘探开发研究院,辽宁 盘锦 124010
- 3. 中国石油长庆油田分公司第二采油厂,甘肃 庆阳 745100
- 折叠
摘要
Abstract
The instability and blockage of the wellbore in the Yichuan Huanglong area of Liaohe Oil field seriously restricts the development process.In response to the problem of wellbore instability in deep coalbed methane well A in the region,the mineral composition and micro-structure of coal rock are analyzed,and the mechanism of wellbore instability is revealed.It is found that the infiltration of filtrate during drilling is prone to hydration,expansion,and crack propagation,resulting in wellbore instability.A collapse prevention drilling fluid system which is suitable for the region has been constructed,characterized by strong sealing,strong inhibition,as well as good rheological and high-tempera-ture resistance.And it has shown good performance in on-site applications,provided effective technical support for the efficient development of deep coalbed methane wells.关键词
深层煤层气/井壁失稳/防塌钻井液/封堵剂/降滤失剂Key words
Deep coalbed methane/Wellbore instability/Anti-collapse drilling fluid/Plugging agent/Loss circulation material分类
矿业与冶金引用本文复制引用
于文强,杨书港,张林鹏,权曌..深层煤层气防塌钻井液优化研究[J].云南化工,2024,51(6):67-70,4.
