Geological Factors of Production Control of CBM Well in South Qinshui Basin
Received date: 2011-06-16
Revised date: 2011-08-02
Online published: 2011-10-10
Well production reflects the reserve and it is an effective method for recognizing the reserve by analysis of well production.Thus the study on coalbed methane (CBM) production control factors can provide a basis for electoral district,well site design and engineering development of CBM exploration.The south Qinshui basin is one of the hotspots in CBM exploitation,and the CBM commercially exploitation here comes true firstly in China.The CBM productions vary in different areas,with the production of 2000-5000m3/d commonly in the ground vertical wells.Base on the comparison and analysis of the CBM productions and the geological condition of vertical wells,it is considered that the main geological factors of production control are structure,coal thickness,depth,gas content,permeability and hydrogeololgy.These factors influence well production differently,and the potential of well production depends on the effective combination of main factors.
Key words： CBM well; Production; Geological factor; Effective configuration.
ZHANG Pei-He, LIU Yu-Hui, WANG Zheng-Xi, LIU Na-Na . Geological Factors of Production Control of CBM Well in South Qinshui Basin[J]. Natural Gas Geoscience, 2011 , 22(5) : 909 -914 . DOI: 10.11764/j.issn.1672-1926.2011.05.909
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