煤层压裂裂缝三维延伸模拟及产量预测研究

郭大立; 纪禄军; 赵金洲; 刘慈群

煤层压裂裂缝三维延伸模拟及产量预测研究

1.
西南石油学院计算机科学系, 四川南充637001;
2.
西南石油学院石油工程系, 四川南充637001;
3.
西南石油学院研究生院, 四川南充637001;
4.
中国科学院渗流流体力学研究所, 河北廊坊065007

详细信息

作者简介:
郭大立(1967- ),男,四川人,副教授;刘慈群(1930- ),男,江苏人,研究员,博士生导师.

中图分类号: TE357.1
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- 文章访问数: 2381
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- 被引次数: 0
出版历程
- 收稿日期: 1999-07-09
- 修回日期: 2000-11-12
- 刊出日期: 2001-04-15

3D Fracture Propagation Simulation and Production Prediction in Coalbed

1.
Department of Computer Science, Southwest Petroleum Institute, Nanchong, Sichuan 637001, P R China;
2.
Department of Petroleum Engineering, Southwest Petroleum Institute, Nanchong, Sichuan 637001, P R China;
3.
Department of Post Graduate, Southwest Petroleum Institute, Nanchong, Sichuan 637001, P R China;
4.
Institute of Porous Flowand Fluid Mechanics, Chinese Academy of Science, Langfang, Hebei 065007, P R China

摘要

摘要: 针对煤层气井的压裂特点和产出机理,综合应用流体力学、线弹性断裂力学、传热学、计算数学和软件工程等方面的知识,提出了煤层压裂裂缝三维延伸模型和产量动态预测模型,其中裂缝三维延伸模型考虑了煤层、上下遮挡层之间的地应力和岩石力学参数变化的影响,产量动态预测模型考虑了煤层气先解吸扩散后渗流入井的产出机理。在此基础上研制了煤层气井三维压裂优化设计软件,并通过实例计算验证了其实用性和可靠性。
- 煤层 /
- 压裂 /
- 裂缝三维延伸 /
- 产量预测 /
- 解吸 /
- 扩散
Abstract: In accordance with the fracturing and producing mechanism in coalbed methane well,and combining the knowledge of fluid mechanics,linear elastic fracture mechanics,thermal transfer, computing mathematics and software engineering,the three-dimensional hydraulic fracture propagating and dynamical production predicting models for coalbed methane well is put forward.The fracture propagation model takes the variation of rock mechanical properties and in-situ stress distribution into consideration.The dynamic performance prediction model takes the gas production mechanism into consideration.With these models,a three-dimensional hydraulic fracturing optimum design software for coalbed methane well is developed,and its practicality and reliability have been proved by example computation.
- coalbed /
- fracturing /
- three-dimensional fracture propagation /
- production predicting /
- desorption /
- diffusion

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参考文献(14)

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