A multiple-porosity method for simulation of naturally fractured petroleum reservoirs
A multiple-porosity method for simulation of naturally fractured petroleum reservoirs
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DOI：
10.2118/15129-pa
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发表时间：
1988-02
期刊：
影响因子：
--
通讯作者：
Yu-Shu Wu;K. Pruess
中科院分区：
文献类型：
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作者：
Yu-Shu Wu;K. Pruess
本文介绍了“多重相互作用连续体”（MINC）方法在裂缝性油藏采收率模拟中的应用。MINC方法是双孔隙度技术的推广，它允许使用数值方法对孔隙间流动进行完全瞬态描述。该方法已成功地应用于过去的地热水库和化学输运问题。在本文中，我们提出的例子来证明效用的MINC方法建模的石油开采机制和现场应用在裂缝性油藏。具体而言，在个别矩阵块与MINC方法获得的吸水的结果进行了比较，从传统的双孔隙度方法和计算使用一个详细的离散矩阵块的结果。MINC的计算被发现是准确的，在任何时候都优于百分之一，而双重孔隙度的结果可能有很大的误差，低渗透率或大尺寸的矩阵块。此外，用MINC方法拟合了已发表的五点注水结果，并研究了华北油田单井的锥进动态。所有结果表明，MINC方法提供了天然裂缝性储层动态的准确预测，而与双孔隙度方法相比，只需要适度增加计算工作量。参考文献21篇，图15，5片。«少
This paper describes the application of the method of ''Multiple Interacting Continua'' (MINC) to the simulation of oil recovery in naturally fractured reservoirs. A generalization of the double-porosity technique, the MINC-method permits a fully transient description of interporosity flow, using numerical methods. The method has been successfully applied in the past to geothermal reservoir and chemical transport problems. In this paper, we present examples to demonstrate the utility of the MINC-method for modeling oil recovery mechanisms and field applications in fractured reservoirs. Specifically, results for water imbibition in individual matrix blocks obtained with the MINC method are compared with results from the conventional double-porosity method and with calculations using a detailed discretization of matrix blocks. The MINC-calculations are found to be accurate to better than 1 percent at all times, while double-porosity results can have large errors for matrix blocks of low permeability or large size. In addition, the MINC-method is used to match published results for five-spot waterfloods, and to study the coning behavior of a single well in the north China oil field. All results show that the MINC-method provides accurate predictions of the behavior of naturally fractured reservoirs, while requiring only a modest increase in computation workmore » in comparison to the double-porosity method. 21 refs., 15 figs., 5 tabs.« less