Lithologic Reservoirs ›› 2011, Vol. 23 ›› Issue (1): 62-66.doi: 10.3969/j.issn.1673-8926.2011.01.010

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Study on system and method of ranking coalbed methane development perspectives

KANG Yuanyuan1， SHAO Xianjie1， SHI Lei1， SHAN Yu1， YU Hang2   

  1. 1. Department of Petroleum Engineering， Yanshan University， Qinhuangdao 066004， China； 2. Qinghai Oilfield Company， PetroChina， Mangya 816400， China
  • Online:2011-02-20 Published:2011-02-20

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Abstract:

Although the study on coalbed methane（CBM） has lasted for 20 years in China, the ranking systemof CBM perspectives has not been established, which restricts the large-scale industrial development of CBM. Based on a large number of basic information and former researches on CBM, the influences of geological factors in coal reservoir on the enrichment abundance and the development effect of CBMare analyzed detailedly, and the relevant assessment index system for CBMperspectives is built up. The weight value is determined by AHP and a group of processing functions have been designed for different types of indices. The weighted average model is used to comprehensively evaluate the perspectives. Finally, some CBMregions in China are comprehensively evaluated. The practical application has a good result, so it can be used to effectively guide the exploration and development of the coalbed methane.

Key words: response surface, regression analysis, numerical simulation

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