Comprehensive Studies on Production Data Analysis of Hydrocarbon Reservoirs

Document Type : Research Paper

Authors

1 Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

2 Department of Petroleum Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran

Abstract

A review of field production data reveals that usually, it is very difficult to apply available decline models because of poor quality and often noisy character of initial data and also unrealistic assumptions of the models. This paper tries to introduce applicable procedures to correct initial data and reproduce missed data. Corrected data are analyzed and finally, the results for permeability and skin factor estimations are compared to results of transient well test analysis. Estimations for Initial Hydrocarbon In Place (IHIP) and reserve are also compared to the results of Material Balance Equation (MBE) and static model through field case studies. It is proved that the analysis can present acceptable estimations for radial permeability and skin values in naturally fractured reservoirs (NFR). Flowing material balance and Buba and Blasingame plotting function model give the best estimations for Original Gas In Place (OGIP) and gas reserve respectively. A simple but useful and applicable method is presented to determine reservoir fracture distribution mapping. It is also showed that the analysis can be used to distinguish water influx successfully.  

Keywords

References

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Journal of Chemical and Petroleum Engineering
Volume 54, Issue 1
June 2020
Pages 129-141

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History

  • Receive Date: 17 February 2020
  • Revise Date: 08 May 2020
  • Accept Date: 25 May 2020

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