| 页岩结构完整性评价的热-流体-变形耦合理论与方法 |
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| 引用本文： | 薛世峰,仝兴华,R. C. K. Wong. 页岩结构完整性评价的热-流体-变形耦合理论与方法[J]. 合肥工业大学学报(自然科学版), 2006, 29(8): 1004-1007 |
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| 作者姓名： | 薛世峰 仝兴华 R. C. K. Wong |
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| 作者单位： | 中国石油大学(华东)储建学院,山东,东营,257062;Calgary大学,Alberta,加拿大 |
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| 基金项目： | 国家自然科学基金资助项目(40274031) |
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| 摘 要： | 该文应用连续介质力学理论建立了与蒸汽注入过程相关的热-流-变形耦合问题的基本数学模型;应用全隐式顺序Galerkin有限元数值解方案,对注蒸汽井的热-流体-变形耦合过程进行了数值模拟。结果表明,由于低渗透页岩地层流体高温膨胀导致的超高孔隙压力,有可能产生拉张应力,严重时会导致地层破裂。
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| 关 键 词： | 低渗透页岩 热-流-变形耦合模型 Galerkin有限元 蒸汽热采 |
| 文章编号： | 1003-5060(2006)08-1004-04 |
| 修稿时间： | 2006-03-14 |
Thermal-hydraulic-mechanics model of structural integrity of shale |
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| XUE Shi-feng,TONG Xing-hua,R. C. K. Wong. Thermal-hydraulic-mechanics model of structural integrity of shale[J]. Journal of Hefei University of Technology(Natural Science), 2006, 29(8): 1004-1007 |
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| Authors: | XUE Shi-feng TONG Xing-hua R. C. K. Wong |
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| Abstract: | Based on the continuum mechanics theory,a coupled thermal structural-hydraulic-mechanics model is presented in this paper.A Galerkin finite element method based on the fully implicit and sequential iterative algorithm is used to simulate the thermal-hydraulic-mechanical process around the injection well.A case study is given.The results show that excess pore pressure is induced in this process due to the higher thermal expansion of fluid in low permeability shale,which may lead to the development of tensile effective stress and fracturing or failure of structure. |
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| Keywords: | clay shale with low permeability coupled thermal-hydraulic-mechanics model Galerkin FEM steam stimulation |
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