Day 2 Wed, February 26, 2014 2014
DOI: 10.2118/167753-ms
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Understanding Shale Gas Production Mechanisms Through Reservoir Simulation

Abstract: Shale gas has changed the energy equation around the world, and its impact has been especially profound in the United States. It is now generally agreed that the fabric of shale systems comprise primarily of organic matter, inorganic material and natural fractures. However, the underlying flow mechanisms through these multi-porosity, multi-permeability systems are poorly understood. For instance, debate still exists about the predominant transport mechanism (diffusion, convection and desorption) as well as the… Show more

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Cited by 13 publications
(9 citation statements)
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“…Many scholars adopt the continuum mechanics model to investigate the gas flow within shale reservoirs. Specifically, both the single porosity single permeability model [1] and dual porosity dual permeability model [2][3][4][5] are used to represent the gas flow within the shale matrix. For the single porosity model, it is assumed that the porous medium is made up of uniform pores with the same properties, which ignores the differences between big cracks and small pores.…”
Section: Introductionmentioning
confidence: 99%
“…Many scholars adopt the continuum mechanics model to investigate the gas flow within shale reservoirs. Specifically, both the single porosity single permeability model [1] and dual porosity dual permeability model [2][3][4][5] are used to represent the gas flow within the shale matrix. For the single porosity model, it is assumed that the porous medium is made up of uniform pores with the same properties, which ignores the differences between big cracks and small pores.…”
Section: Introductionmentioning
confidence: 99%
“…where Q gwell is the production rate of the fracture system and can be defined based on the Peaceman model [26]:…”
Section: Constitutive Equationmentioning
confidence: 99%
“…级左右 [11,12,42,43] , 需要采用双渗介质模型 [43] . 考虑页岩 气藏发育干酪根有机质、无机基岩以及压裂改造产生 的次生裂缝网络等多尺度介质, 学者们 [15,44~46] 引入多 重连续性模型描述页岩气藏多尺度介质耦合运移机 制, 多重介质之间流体跨尺度传质多采用拟稳态窜流 表征 [17,47,48] , 其合理性需要进一步研究讨论. 离散裂缝 模型(DFM)是在裂缝分布规律定量认识的基础上, 采 用非结构化网格等手段表征次生裂缝几何形状和位 置, 通过有限元等数值方法求解基质-裂缝耦合渗流规 律 [49~52] .…”
Section: 扩散等因素影响 其渗透率比达西渗透率高3个数量unclassified