摘要
文章针对鄂尔多斯盆地煤层气开发中的关键技术问题——井壁稳定性进行了深入探讨。通过分析盆地的特殊地质条件、地应力分布的复杂性,以及煤层结构和物理特性的变化,强调了钻井液在井壁稳定中的核心作用,尤其是钻井液的合理密度选择、封堵性和抑制性的评价与优化都是确保井壁稳定、提高开发效率的关键因素。
This article delves into the key technical issue in the development of coalbed methane in the Ordos Basin-wellbore stability.By analyzing the special geological conditions of the basin,the complexity of stress distribution,and the changes in coal seam structure and physical properties,this article emphasizes the core role of drilling fluid in wellbore stability,especially the reasonable density selection,sealing and inhibition evaluation and optimization of drilling fluid are key factors to ensure wellbore stability and improve development efficiency.
作者
任海帆
REN Haifan(Shenfu Branch,China United Coalbed Methane Co.,Ltd.,Yulin 719300,China)
关键词
鄂尔多斯盆地
煤层
井壁
Ordos Basin
coal seam
drilling fluid
