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The Research of Fracture Connectivity Effect on Shale Gas Transport Using Discrete Fracture Model

Lidong Mi, Hanqiao Jiang, Ye Tian, Junjian Li, and Shuaiwei Ding
Key Laboratory of the Ministry of Education, China University of Petroleum, Beijing 102249, China

Abstract—In this paper, a new numerical method is introduced in the simulation of fluid transport in fractured shale reservoirs. Discrete Fracture Model (DFM) has been established and fluid transport behavior is investigated by solving the mass conservation equations in the matrix and fracture using the Finite Element Analyses (FEA) Method. In the DFM, fluid flow into the wellbore which are surrounded by impermeable rock matrix is only through fractures those connect to it. Flow through fractures, which meet the “Cubic law”, in naturally fractured shale gas reservoir has been observed to contribute to overall production of fluid from the reservoir through the wellbore to the surface. The model is validated and then used to simulate a random generated fractures network to study the characteristics of transport in Fractured Porous Media (FPM). It is found that the fractures’ connection and the number of fractures which connect to wellbore have a significant influence on the fluid migration.

Index Terms—shale gas, fracture connectivity, discrete fracture model, fractured porous media, numerical simulation

Cite: Lidong Mi, Hanqiao Jiang, Ye Tian, Junjian Li, and Shuaiwei Ding, "The Research of Fracture Connectivity Effect on Shale Gas Transport Using Discrete Fracture Model," Journal of Industrial and Intelligent Information, Vol. 4, No. 1, pp. 21-26, March 2016. doi: 10.12720/jiii.4.1.21-26
 

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