...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Energy Resources Technology >Numerical Simulation of the Impact of Natural Fracture on Fluid Composition Variation Through a Porous Medium
【24h】

Numerical Simulation of the Impact of Natural Fracture on Fluid Composition Variation Through a Porous Medium

机译：天然裂缝对多孔介质流体成分变化影响的数值模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to lessen the computational time in fractured oil reservoir simulations, all fractures are usually assumed to be as one equivalent fracture at the center or around the model. This, specially, has applications in industrial engineering software, where this assumption applies. In this study, using two general contradictory examples, it is shown that ignoring a fracture network and assuming an equivalent single-fracture has no logical justification and results in a considerable error. The effect of fracture aperture on composition distribution of a binary and a ternary mixture was also investigated. These mixtures were C-1 (methane)-C-4 (normal-butane) and C-1 (methane)/C-2 (ethane)-C-4 (normal-butane), which were under diffusion and natural convection. Governing equations were numerically solved using MATLAB. One of the main relevant applications of this study is where permeability and temperature gradient are the key difference between reservoirs. Compositional distribution from this study could be used to estimate initial oil in place. Using this study, one can find the optimum permeability, namely the permeability at which the maximum species separation happens, and the threshold permeability (or fracture aperture), after which the convection imposes its effect on composition distribution. It is found that the threshold permeability is not constant from reservoir to reservoir. Also, one can find that full mixing happens in the model, namely heavy and light densities of top and bottom mix up together in the model. Furthermore, after maximum separation point, convection causes unification of components.
机译：为了减少裂缝油藏模拟中的计算时间，通常将所有裂缝假定为模型中心或模型周围的一个等效裂缝。特别是在适用此假设的情况下，可在工业工程软件中应用。在这项研究中，使用两个通用的矛盾示例，表明忽略裂缝网络并假设等效单裂缝没有逻辑上的依据，并且会导致相当大的误差。还研究了裂隙孔径对二元和三元混合物组成分布的影响。这些混合物为C-1（甲烷）/ n-C-4（正丁烷）和C-1（甲烷）/ C-2（乙烷）/ n-C-4（正丁烷），它们处于扩散和自然对流状态。控制方程使用MATLAB数值求解。这项研究的主要相关应用之一是渗透率和温度梯度是储层之间的关键差异。这项研究的成分分布可用于估算初始油量。使用这项研究，可以找到最佳渗透率，即发生最大物种分离的渗透率和阈值渗透率（或裂隙孔径），之后对流将其影响到组分分布。发现储层之间的阈值渗透率不是恒定的。同样，人们可以发现模型中发生了完全混合，即，顶部和底部的高密度和轻密度在模型中混合在一起。此外，在最大分离点之后，对流导致组件统一。

著录项

  • 来源
    《Journal of Energy Resources Technology》 |2019年第4期|042901.1-042901.16|共16页
  • 作者

    Papi Ali; Mohebbi Ali; Eshraghi S. Ehsan;

  • 作者单位

    Shahid Bahonar Univ Kerman, Fac Engn, Dept Chem Engn, POB 76169133, Kerman, Iran;

    Shahid Bahonar Univ Kerman, Fac Engn, Dept Chem Engn, POB 76169133, Kerman, Iran;

    Omid Petro Energy Khavaran Co, Sci & Technol Pk,POB 113654563, Mashhad, Iran|Univ Tehran, Fac Engn, Sch Chem Engn, Inst Petr Engn, POB 113654563, Tehran, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composition variation; convection; diffusion; fractured porous medium;

    机译：成分变化;对流;扩散;多孔介质破裂;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号