Lithologic Reservoirs ›› 2014, Vol. 26 ›› Issue (6): 126-130.doi: 10.3969/j.issn.1673-8926.2014.06.021

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Recoverable reserve growth of discovered gas fields

ZHANG Jingping， TANG Hongjun， SUN Yuping   

  1.  Research Institute of Petroleum Exploration & Development-Langfang ， Langfang 065007 ， Hebei ， China
  • Online:2014-11-20 Published:2014-11-20

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Abstract:

The application of improved recovery techniques and extension of old reservoirs can improve recoverable reserves in discovered gas field. By calculating the annual growth factor or cumulative growth coefficient of previous recoverable reserves and establishing recoverable reserves growth model, we can predict the future recoverable reserve growth. Currently, the U.S. recoverable reserve growth model is extensively used in America and other regions. This paper used this model to match historical data of recoverable reserves of 186 gas fields in China. The result shows that the actual recoverable reserves are in agreement with the recoverable reserves predicted by this model, which indicates that the model has certain applicability in China. Finally, this paper used the model to estimate the future recoverable reserves of the fields discovered before 2011 in China.

Key words: coalbed methane, gas content, resource volume, occurrence features, exploration and development potential, Heyang area, Ordos Basin

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