A dual percolation model for predicting the connectivity of fractured porous media


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Аннотация

This paper presents a dual-percolation model coupling the percolation theory and the fracture percolation theory to study the conductivity of the fractured porous media. The Monte-Carlo method is used in the numerical simulation. First an appropriate computing scale by considering the calculation precision and elapsed time together is validated. Then, two parameters, A0 and D are presented in this model to determine the conductivity of the media. Generally the media can be blocked by itself in the condition of D > 2. However, the increase of pore connection and the randomness of fracture direction may release the selfblockage, increase the conductivity and make the dual porous media dissipated. A few long fractures can play a great role in the connection of media.

Авторлар туралы

Pingkang Wang

Centre for Gas Hydrate, Oil and Gas Survey

Email: zhangxuhui@imech.ac.cn
ҚХР, Beijing

Xuhui Zhang

Key Laboratory for Mechanics of Fluid Solid Coupling System, Institute of Mechanics

Хат алмасуға жауапты Автор.
Email: zhangxuhui@imech.ac.cn
ҚХР, Beijing

Xiaobing Lu

Key Laboratory for Mechanics of Fluid Solid Coupling System, Institute of Mechanics

Email: zhangxuhui@imech.ac.cn
ҚХР, Beijing

Wei Zheng

Key Laboratory for Mechanics of Fluid Solid Coupling System, Institute of Mechanics

Email: zhangxuhui@imech.ac.cn
ҚХР, Beijing

Qingjie Liu

State Key Laboratory for Enhanced Oil Recovery

Email: zhangxuhui@imech.ac.cn
ҚХР, Beijing

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