Numerical investigation of dual-porosity model with transient transfer function based on discrete-fracture model
查看参考文献21篇
文摘
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Based on the characteristics of fractures in naturally fractured reservoir and a discrete-fracture model, a fracture network numerical well test model is developed. Bottom hole pressure response curves and the pressure field are obtained by solving the model equations with the finite-element method. By analyzing bottom hole pressure curves and the fluid flow in the pressure field, seven flow stages can be recognized on the curves. An upscaling method is developed to compare with the dual-porosity model (DPM). The comparisons results show that the DPM overestimates the inter-porosity coefficient λ and the storage factor ω. The analysis results show that fracture conductivity plays a leading role in the fluid flow. Matrix permeability influences the beginning time of flow from the matrix to fractures. Fractures density is another important parameter controlling the flow. The fracture linear flow is hidden under the large fracture density. The pressure propagation is slower in the direction of larger fracture density. |
来源
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Applied Mathematics and Mechanics
,2016,37(5):611-626 【核心库】
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DOI
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10.1007/s10483-016-2075-8
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关键词
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dual-porosity model (DPM)
;
discrete-fracture model
;
fracture network
;
finite-element method
;
upscaling
;
numerical well test
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地址
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1.
Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190
2.
Changqing Downhole Technology Company, Chuanqing Drilling Engineering Company Limited, China National Petroleum Corporation, 710018
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语种
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英文 |
文献类型
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研究性论文 |
ISSN
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0253-4827 |
学科
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数学;力学 |
基金
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国家自然科学基金
;
the National Science and Technology Major Project
;
中国博士后科学基金
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文献收藏号
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CSCD:5712791
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21
共2页
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