화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.57, No.6, 883-890, December, 2019
DOI10.9713/kcer.2019.57.6.883  Export Citation
A Novel Approach for Well-Test Analysis of Volatile Oil Reservoirs in Two-Phase Flow Conditions
Hamid Baniasadi, and Fariborz Rashidi1, †
  • Department of Petroleum Engineering, Amirkabir University of Technology, No. 424, Hafez Ave., Tehran, Iran
  • 1Department of Chemical Engineering, Amirkabir University of Technology, No. 424, Hafez Ave., Tehran, Iran
E-mail:
Two-phase flow near the wellbore in volatile oil reservoirs causes complications in well test analysis. In this study, the flow behavior of volatile oil reservoirs below the bubble-point pressure and the potential of radial composite model for interpretation of two-phase well test in volatile oil reservoirs was investigated. A radial composite model was used for two-phase well test analysis. A new procedure was developed to interpret well test data and estimate the radius of the two-phase region. The changes in fluid composition near the wellbore during drawdown test were found to increase the saturation pressure, which affects the saturation profile during build-up. Well test results showed that the radial composite method is a powerful tool for well test characterization and estimation of reservoir parameters. The proposed procedure was able to estimate the reservoir parameters and radius of the two-phase region with acceptable accuracy.
Keywords:Radial composite model;Two-phase flow;Volatile oil reservoir;Well test analysis
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