水平井水力压裂影响参数的数值模拟

刘志帆; 刘志强; 施安峰; 王晓宏; 曾博; 李雪丽

doi:10.3799/dqkx.2017.106

Volume 42 Issue 8

Aug. 2017

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Liu Zhifan, Liu Zhiqiang, Shi An'feng, Wang Xiaohong, Zeng Bo, Li Xueli, 2017. Numerical Simulation on Influence Parameters of Horizontal Well Hydraulic Fracturing. Earth Science, 42(8): 1394-1402. doi: 10.3799/dqkx.2017.106

Citation:

Liu Zhifan, Liu Zhiqiang, Shi An'feng, Wang Xiaohong, Zeng Bo, Li Xueli, 2017. Numerical Simulation on Influence Parameters of Horizontal Well Hydraulic Fracturing. Earth Science, 42(8): 1394-1402. doi: 10.3799/dqkx.2017.106

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Numerical Simulation on Influence Parameters of Horizontal Well Hydraulic Fracturing

doi: 10.3799/dqkx.2017.106

1.
School of Engineering Science, University of Science and Technology of China, Hefei 230026, China
2.
PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China

Received Date: 2017-04-30
Publish Date: 2017-08-15

Abstract

Abstract

Hydraulic fracturing is the main development method of low permeability reservoir, so it is important to the engineering to address the issue. By combining the fluid-structure interaction theory with fracture mechanics, the propagation of hydraulic fracture is simulated in this paper. Discrete fracture model and generalized J integral are introduced in the proposed model to calculate the flux across the fracture-matrix interface and fracture parameters, respectively. To ensure high precision and efficient simulation, the adaptive mesh refinement technology is introduced in the grids near the crack tip. The results show that the matrix permeability and viscosity of fracturing fluid mainly influence the final shape of hydraulic fracture, while the elastic modulus of rock mainly influence the fracture width. For fracture trucks, the maximum working pressure can generally meet the demand for fracturing production, and the maximum output power and maximum output flow are the main factors limiting the fracturing capacity.
- hydraulic fracturing simulation,
- discrete fracture model,
- generalized J integral,
- adaptive mesh refinement technology,
- numerical simulation,
- petroleum geology

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Numerical Simulation on Influence Parameters of Horizontal Well Hydraulic Fracturing

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