石油学报 ›› 2006, Vol. 27 ›› Issue (3): 130-132.DOI: 10.7623/syxb200603029

• 石油工程 • 上一篇    下一篇

物理-化学耦合作用下泥页岩坍塌周期应用研究

王炳印1, 邓金根1, 邹灵战1, 陆伟2   

  1. 1. 中国石油大学石油天然气工程学院 北京 102249;
    2. 塔里木油田公司勘探事业部 新疆 库尔勒 841000
  • 收稿日期:2005-07-13 修回日期:2005-10-08 出版日期:2006-05-25 发布日期:2010-05-21
  • 作者简介:王炳印,男,1977年1月生,1998年毕业于石油大学(华东)机械设计与制造专业,现为中国石油大学(北京)在读博士研究生,主要从事套管损坏、岩石力学等相关方面的研究.E-mail:wangbingyin@126.com
  • 基金资助:
    教育部全国高等学校优秀博士学位论文专项基金(200349)资助.

Applied research of collapse cycle of shale in wellbore using a coupled physico—chemical model

Wang Bingyin1, Deng Jingen1, Zou Lingzhan1, Lu Wei2   

  1. 1. Faculty of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
    2. Exploration Department of PetroChina Tarim Oilfield Company, Kuerle 839009, China
  • Received:2005-07-13 Revised:2005-10-08 Online:2006-05-25 Published:2010-05-21

摘要: 基于泥页岩地层井壁周期性失稳的特点,将泥页岩地层视为孔隙介质进行分析,根据多孔热弹性理论及泥页岩的本构关系,考虑泥页岩地层在温度、孔隙压力、泥页岩水化等因素的耦合作用,建立了耦合数学模型,得出了不同泥浆体系和不同泥浆密度下泥页岩井壁的坍塌周期。在西部巨厚、复杂的泥页岩地层井壁失稳的研究中表明,其应用效果和实际情况吻合较好。

关键词: 泥页岩地层, 井壁稳定性, 流-固耦合, 坍塌周期, 数学模型

Abstract: The collapse of shale often happens in wellbore of water-sensitive shale formations during drilling.The shale formation was taken as pore medium to be analyzed.In consideration of coupled interaction of thermal diffusion,pore pressure and mud-shale hydration on shale formation,the coupling model for collapse cycle of wellbore was established on the basis of the constitutive relationship of shale and multi-porous thermo-elastic theory.The proper collapse cycle of shale in wellbore can be obtained with the model.

Key words: shale formation, borehole stability, fluid-solid coupling, collapse cycle, mathematical model

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