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 • 上一篇    下一篇

煤层气排采工艺技术研究和展望

郭大立1,2,贡玉军2,李曙光3,4,曾晓慧2,李臻5   

  1. 1.“油气藏地质及开发工程”国家重点实验室· 西南石油大学,四川成都6105002.西南石油大学理学院,四川成都6105003.北京大学工学院能源与资源工程系,北京海淀1008714.中国石油煤层气有限责任公司勘探开发项目部,北京朝阳1000285. 西南石油大学石油工程学院,四川成都610500
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-04-01 发布日期:2012-04-01

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

摘要: 煤层气勘探开发的主要工艺技术流程是钻井、压裂和排采,排采是煤层气开发的重要环节。作为开发链条上的
重要环节,很长时期并未受到足够的重视。根据煤层气的排采机理,重点阐述了国内外煤层气排采工艺技术,提出煤层气
井压裂裂缝三维延伸模型和产量动态预测模型,分析了煤层气排采不合理所造成的问题,可以通过控制生产压差和排采
速度,调整排采组合方式,采用定压排采和定产排采相结合的方法来解决或缓解。实现煤层气排采定量化和自动化,对合
理开发煤层气、提高煤层气藏开采规模、降低成本和优化中国能源结构具有重要意义,是十分必要和紧迫的。

关键词: 煤层气, 排采, 机理, 流程, 工艺技术

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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