Due to the discontinuity and multi-scale of fracture porous media (FPM), fluid transport in the naturally fractured reservoir (NFR) is more complex than in the conventional reservoirs. Based on the embedded discrete fracture model (EDFM), the effect of fracture pattern (i.e. fracture orientation, intersection relationship, numbers and distribution) on fluid transport is investigated, and the paper also conducts research on pressure distribution and flow behavior. A series of fracture models are built to get a detailed analysis of fracture pattern influences. Results show that when the fracture orientation tends to parallel the main stream direction, the seepage flow through the fracture is more distinct and the pressure drop at two sides of fracture becomes larger. As the intersecting fracture cannot serve as part of main-stream channels, the intersection is almost invalid. In the multi-scale fracture model, the pressure drop in the large-scale fractures network is higher than in the small-scale fractures. Thus, the simulation results show that the fracture pattern has a significant impact on the seepage flow and pressure distribution. Also, this model is simulated for M field which has random natural fracture network to study the flow and transport characteristics in fractured porous media. The comprehensive simulation results the fracture patterns have impact effect on production.

由于裂缝多孔介质（FPM）的不连续性和多尺度性，天然裂缝性油藏（NFR）中的流体输运比常规油藏更为复杂。基于嵌入式离散裂缝模型（EDFM），研究了裂缝模式（即裂缝方向、交集关系、数量和分布）对流体输运的影响，并对压力分布和流动行为进行了研究。建立了一系列裂缝模型，以详细分析裂缝模式的影响。结果表明，当裂缝取向趋向于平行于主流方向时，通过裂缝的渗流更加明显，裂缝两侧的压降变大。由于相交裂缝不能作为干流通道的一部分，交叉点几乎无效。在多尺度裂缝模型中，大尺度裂缝网络中的压降高于小尺度裂缝。因此，模拟结果表明裂缝模式对渗流和压力分布有显着影响。此外，该模型还针对具有随机天然裂缝网络的 M 场进行了模拟，以研究裂缝性多孔介质中的流动和输运特性。综合模拟结果表明，裂缝模式对生产有影响。该模型针对具有随机天然裂缝网络的 M 场进行模拟，以研究裂缝性多孔介质中的流动和输运特性。综合模拟结果表明，裂缝模式对生产有影响。该模型针对具有随机天然裂缝网络的 M 场进行模拟，以研究裂缝性多孔介质中的流动和输运特性。综合模拟结果表明，裂缝模式对生产有影响。