钻完井过程中漏失机理及堵漏技术研究进展

Research Progress on Leakage Mechanism and Plugging Technology During Drilling and Completion

油气钻井工程中的钻井液漏失一直是国内外石油行业研究关注的焦点,得到了许多学者的持续研究,进行了许多有关井漏的理论探究、实验评价及数值模拟研究。主要分析了漏失类型,研究了不同类型漏失的形成机理,探讨了不同漏失处理技术的优缺点与适用范围,对现场堵漏施工作业具有一定的指导意义。

drilling fluid leakage in oil and gas drilling engineering has always been the focus of research in oil industry at home and abroad,and many scholars have been studying it continuously.Many theoretical researches,experimental evaluations and numerical simulations have been done.Based on the literature research,this paper analyzes the types of leakage comprehensively,studies the formation mechanism of different types of leakage,and discusses the advantages and disadvantages of different leakage treatment technologies and their application scope,which has some guiding signi ficance for on-site plugging operation.