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基于扩展有限元的页岩水平井多裂缝模拟研究

陈军斌 魏波 谢青 王汉青 李涛涛 王浩

陈军斌, 魏波, 谢青, 王汉青, 李涛涛, 王浩. 基于扩展有限元的页岩水平井多裂缝模拟研究[J]. 应用数学和力学, 2016, 37(1): 73-83. doi: 10.3879/j.issn.1000-0887.2016.01.006
引用本文: 陈军斌, 魏波, 谢青, 王汉青, 李涛涛, 王浩. 基于扩展有限元的页岩水平井多裂缝模拟研究[J]. 应用数学和力学, 2016, 37(1): 73-83. doi: 10.3879/j.issn.1000-0887.2016.01.006
CHEN Jun-bin, WEI Bo, XIE Qing, WANG Han-qing, LI Tao-tao, WANG Hao. Simulation of Multi-Hydrofracture Horizontal Wells in Shale Based on the Extended Finite Element Method[J]. Applied Mathematics and Mechanics, 2016, 37(1): 73-83. doi: 10.3879/j.issn.1000-0887.2016.01.006
Citation: CHEN Jun-bin, WEI Bo, XIE Qing, WANG Han-qing, LI Tao-tao, WANG Hao. Simulation of Multi-Hydrofracture Horizontal Wells in Shale Based on the Extended Finite Element Method[J]. Applied Mathematics and Mechanics, 2016, 37(1): 73-83. doi: 10.3879/j.issn.1000-0887.2016.01.006

基于扩展有限元的页岩水平井多裂缝模拟研究

doi: 10.3879/j.issn.1000-0887.2016.01.006
基金项目: 国家自然科学基金(51374170)
详细信息
    作者简介:

    陈军斌(1963—),男,教授,博士(E-mail: chenjbxu@126.com);魏波(1987—),男,硕士生(通讯作者. E-mail: xysuweibo131010097@163.com).

  • 中图分类号: TE357;O343.1

Simulation of Multi-Hydrofracture Horizontal Wells in Shale Based on the Extended Finite Element Method

Funds: The National Natural Science Foundation of China((51374170)
  • 摘要: 页岩储层水平井分段多簇压裂簇间距优选是压裂技术的关键,建立了水力压裂流固耦合数学模型,基于扩展有限单元法模拟多条裂缝的扩展过程,研究多条裂缝同时扩展的转向规律,以及应力干扰、水平主应力差、裂缝间距等因素与裂缝转向角度的关系.结果表明:应力干扰作用对裂缝宽度具有限制作用,单条裂缝张开宽度比两条裂缝的大;裂缝转角随应力差的减小而增大,随压裂时间的增加而增大.簇间距越小,应力干扰越强,转角越大,综合主缝均匀扩展、支撑剂填充以及复杂裂缝网络形成等条件,确定最优簇间距为30~40 m.多条裂缝同时扩展时,中间裂缝会受到两边裂缝的限制作用,簇间距越小,限制作用越强,裂缝发育时间越长,扩展速度越慢.
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出版历程
  • 收稿日期:  2015-07-08
  • 修回日期:  2015-10-09
  • 刊出日期:  2016-01-16

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