摘要
从力化耦合角度研究了泥页岩的井壁稳定性,分析了目前室内用于评价井壁稳定性的实验方法、实验装置以及它们的优缺点。在此基础上研制了评价泥页岩井壁失稳的新型实验装置,并建立了相应的实验方法。利用新型实验装置完成人工井壁模拟实验、水力压力传递实验、化学渗透实验,为仪器的进一步完善提供实践基础。应用结果证明,该装置能够用于指导钻井液体系的优化,有助于稳定井壁、减小井下复杂事故的发生、缩短建井周期、降低油气资源勘探开发成本,进而带来巨大的社会效益和经济效益。
The argillutite wellbore stability is researched from the aspect of force coupling,and the advantages and disadvantages of traditional wellbore evaluation methods and apparatuses are analyzed,based on that,a novel evaluation apparatus and test method are developed.With the novel apparatus,the experiments of artificial simulation wellbore,hydraulic pressure transmission and chemical penetration are carried on,and the experimental results show that this apparatus can be used to optimize formulation of drilling fluid system,and it is good to wellbore stability.
出处
《钻井液与完井液》
CAS
北大核心
2013年第3期37-40,94,共4页
Drilling Fluid & Completion Fluid
基金
国家自然科学基金资助项目(41072109)
关键词
泥页岩
井壁稳定
人工井壁
压力传递
化学渗透
Argillutite
Wellbore stability
Artificial wellbore
Pressure transmission
Chemical penetration
