Sensitivity Analysis of Production in Fractured Shale Gas Reservoirs

ZHAO Tian-wu; SHEN Yong-kuan; CHEN Jie; LIU Chuang; LIU He; WU Heng-an

doi:10.21656/1000-0887.360357

Volume 37 Issue 7

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Article Navigation > Applied Mathematics and Mechanics > 2016 > 37(7): 718-728

ZHAO Tian-wu, SHEN Yong-kuan, CHEN Jie, LIU Chuang, LIU He, WU Heng-an. Sensitivity Analysis of Production in Fractured Shale Gas Reservoirs[J]. Applied Mathematics and Mechanics, 2016, 37(7): 718-728. doi: 10.21656/1000-0887.360357

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Sensitivity Analysis of Production in Fractured Shale Gas Reservoirs

doi: 10.21656/1000-0887.360357

¹Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, P.R.China;²Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, P.R.China

Funds: The National Natural Science Foundation of China（11472263； 11525211）

Received Date: 2015-12-29
Rev Recd Date: 2016-03-02
Publish Date: 2016-07-15

Abstract

Abstract

In view of gas seepage and effect of desorption, shale compressibility and slippage effect, the full coupling mathematical model for production of the fracture system in shale gas reservoirs was established. The matrix and fracture flow field was solved with the finite element method. The simulation results were consistent with the published field data from the Barnett Shale in the Newark East field. Based on this model, the effects of the fracture’s half length, number, spacing and gas desorption on gas production were simulated. The numerical results show that the fracture parameters are interactive. The influence of the half length on production enhancement is dominant. The optimal number of fractures is related to the fracture’s half length. In the middle and late parts of the gas production period, the effect of desorption provides considerable production. The presented model makes an effective theoretical tool for the optimization of shale fracturing design.
- shale gas,
- fracture system,
- effect of desorption,
- finite element method

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References(20)

References

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