| 何应付,尹洪军,刘莉,刘学伟.复杂边界非均质渗流场流线分布研究[J].计算力学学报,2007,24(5):708~712 |
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| 复杂边界非均质渗流场流线分布研究 |
| Research on streamline distribution of flow through heterogeneous porous media with complex boundary |
| 修订日期：2005-03-26 |
| DOI：10.7511/jslx20075139 |
| 中文关键词: 边界元方法,流线,不渗透区域,数学模型,稳定渗流 |
| 英文关键词:boundary element method,streamline,impermeable barrier,mathematical model,steady-state flow |
| 基金项目:国家自然科学重点基金(50634020)，黑龙江省教育厅科学技术研究(11521003)资助项目 |
| 何应付 尹洪军 刘莉 刘学伟 |
中国科学院渗流流体力学研究所 河北廊坊065007(何应付，刘莉，刘学伟)
，大庆石油学院石油工程学院 黑龙江大庆163318(尹洪军)
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| 中文摘要: |
| 建立了考虑源(汇)影响的含有不渗透区域复杂边界条件下非均质油藏稳定渗流的数学模型。利用扰动边界元方法求解数学模型,获得了地层中任意一点的压力公式.在此基础上,提出了流线场的生成方法。绘制了考虑非均质性、复杂边界和不渗透区域影响的流线分布图,并分析了流线分布的特征。通过分析表明,渗流场的非均质性和不渗透区域的存在都对流线分布存在较大的影响。利用本文方法产生的流线分布图能够较为直观地反映出油藏流体在注采井间的运动轨迹,为优化井网和注入方案提供了重要依据。 |
| 英文摘要: |
| Many reservoir engineers have paid close attention to the streamline study.The steady-state flow mathematical model of arbitrary shaped heterogeneous reservoirs with impermeable barrier is constructed in this paper.In order to solve this model,perturbation method is employed and the solution is expanded into a series in powers of perturbation parameter.By using the boundary element method,pressure is obtained.And a streamline generating technique is presented. The advantages of the method are reducing the dimensions of the solving problem and decreasing the calculation workload,being not only more accurate but also having more general applicability.The figures of streamlines are plotted and analyzed considering the effect of complex boundary,heterogeneous and impermeable barriers.Through analyzing,it indicates that the impermeable barriers and heterogeneity have various degree influences on the streamlines.The figures shows that the streamline distributions can visual display the reservoir fluid's movement tracks between the producers and injectors,an optimum pattern and an injection strategy can be also developed. |
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