| 混合边界油藏压力分布的有限元法模拟 |
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| 引用本文： | 刘振宇,刘洋,吴英.混合边界油藏压力分布的有限元法模拟[J].燕山大学学报,2003,27(1):74-78. |
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| 作者姓名： | 刘振宇 刘洋 吴英 |
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| 作者单位： | 1. 大庆石油学院,大庆,163318
2. 石油大学,北京,昌平,102200 |
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| 摘 要： | 建立了稳定渗条件下的有限元方程，针对定边界和封闭边界合作用下的渗流问题进行了模拟计算，给出了圆形地层和矩形地层在以上条件下的压力分布，结果表明，混合油藏外边界将产生复杂的地层压力分布，压力分布随地层方位的不同而不同，同时说明，有限元法用于求解复杂边界条件的渗流问题是方便有效的。
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| 关 键 词： | 油藏 压力分布 渗流 有限元法 Galerkin法 定压边界 封闭边界 混合边界 |
| 修稿时间： | 2002年11月21 |
Numerical Simulation of Reservoir Pressure Distribution under Composite Boundary Condition with Finite Element Method |
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| Abstract: | In this paper, the finite element equations are established under the condition of steady-state flow. Numerical simulation are conducted to the flow reservoirs with the composite boundary condition of constant-pressure boundary and closed boundary, and the pressure distribution curves in circular reservoir and the rectangle reservoir are derived . The results show that the composite outer boundary can results in complex pressure distribution. The pressure distribution varies with the orientation. It is shown that finite element method is available and convenient to solve the problem of flow in porous media with complex boundary condition. |
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| Keywords: | flow through porous media finite element meth-od Galerkin method constant-pressure boundary closed boundary composite boundary |
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