西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (2): 91-98.

• 石油与天然气工程 • Previous Articles     Next Articles

Research and Prospect About the CBM Drainage Technology

Guo Dali1，2, Gong Yujun2, Li Shuguang3,4, Zeng Xiaohui2, Li Zhen5   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University，Chengdu，Sichuan 610500，China2. School of Science，Southwest Petroleum University，Chengdu，Sichuan 610500，China3. Department of Energy and Resources Engineering，Peking University，Haidian，Beijing 100871，China4. Exploration and Development Department，PetroChina Coalbed Methane Company Limited，Chaoyang，Beijing 100028，China5. School of Petroleum Engineering，Southwest Petroleum University，Chengdu，Sichuan 610500，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-04-01 Published:2012-04-01

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Abstract: The main technology of exploitation and development of CBM is drilling，fracturing and draining，The draining is
the important part of the CBM development，but it has not be recognized for the long time. Based on the draining mechanism
of the CBM，the 3D extend models and performance prediction models of the induced fracture of the CBM were presented in
this paper，and some unreasonale problems of the CBM draining were analyzed. The drainage array mode can be adjusted by
controlling the production pressure drop and the drainage speed. It is necessary and compulsory for our country to develop
CBM reasonably，improve the level of CBM reservoir，low the cost and optimize the construction of our national energy.

Key words: CBM, draining, mechanism, procedures, technology

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