Lithologic Reservoirs ›› 2012, Vol. 24 ›› Issue (3): 108-111.doi: 10.3969/j.issn.1673-8926.2012.03.019

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Dynamic reserve calculation of single well of low permeability gas reservoir based on flowing material balance method

ZHONG Haiquan1，ZHOU Junjie1，LI Yingchuan1，PU Hao2，TAN Yan3
  

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Southwest Petroleum University， Chengdu 610500， China； 2. Nanchong Refinery Plant， PetroChina Sichuan Petrochemical Company， Nanchong 637000， China； 3. No.3 Oil Production Plant， PetroChina Qinghai Oilfield Company， Dunhuang 816400， China
  • Online:2012-06-20 Published:2012-06-20

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Abstract:

The dynamic reserve of gas well is very important to allocate reasonable production and draw up development programs. However, due to low permeability and strong heterogeneity of low permeability gas reservoir, it is hard to calculate the dynamic reserve correctly. Combined with dynamic production data of low permeability gas reservoir, through statistical analysis, the production index curves of single wells were divided into three types: standard type, fluctuation type, multi-section type, and the characteristics of production index curve of single wells and the related reasons were analyzed. Finally, the method for determining dynamic reserve of different wells based on flowing material balance method was proposed. The case study shows that it is reasonable that using flowing material balance method to calculate the single well dynamic reserves of low permeability gas reservoir.

Key words: well pattern thickening, В. Н. шелкачев formula, oil recovery, well spacing density

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