泥页岩综合分类方法探索  

Research on Integrated Classification Method of Claystones and Shales

作　　者：王怡[1] 刘修善[1] 曾义金[1] 光新军[1] 

机构地区：[1]中国石化石油工程技术研究院

出　　处：《钻井液与完井液》2014年第4期82-85,101-102,共4页Drilling Fluid & Completion Fluid

基　　金：国家重点基础研究发展计划(973计划)"深井复杂地层安全高效钻井基础研究"(2010CB226700);国家科技重大专项"海相碳酸盐岩油气井井筒关键技术"(2011ZX05005-006)

摘　　要：不同类型的泥页岩具有不同的工程特征,其失稳机理特征、技术对策不尽相同,泥页岩的科学分类对层系的钻井液设计、井壁稳定技术等具有积极的指导意义。在总结已有泥页岩分类方法的基础上,形成了考虑泥页岩物理及力学特性的综合分类方法,弥补以往的泥页岩分类方法多为钻井液技术服务的局限性。研究表明:利用泥页岩综合分类方法,能够比较准确地确定不同类型泥页岩的物理、化学、力学特性及技术对策,更有效地满足泥页岩层系的勘探开发的工程需要。Different claystones and shales have different engineering characteristics, and hence different mechanisms of destabilization and strategies drilling them. Proper classification of claystones and shales is of great importance in drilling fluid design and selection of technologies to stabilize claystone and shale formations. Based on the previous classification methods, an integrated classification method is presented taking into account the physical and mechanical properties of claystone and shale. This new method has gotten rid of the limits of the previous method in guiding drilling fluid engineering. Research shows that the physical, chemical and mechanical properties of claystones and shales, and technologies dealing with borehole instability can be accurately determined with the new method, more effectively satisfying the need for drilling in claystone and shale formations.

关 键 词：泥页岩 组构特征 岩石力学 分类方法 

分 类 号：TE21[石油与天然气工程—油气井工程]