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Search / Korean Journal of Chemical Engineering
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Korean Chemical Engineering Research, Vol.57, No.6, 883-890, 2019
A Novel Approach for Well-Test Analysis of Volatile Oil Reservoirs in Two-Phase Flow Conditions
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.
[References]
- Ahmed, T., Reservoir engineering handbook, 4th ed., Elsevier. (2010).
- Lee Y, Choi H, Lee J, Han J, Ryou S, Roh J, Sung W, Korean Chem. Eng. Res., 45(5), 515, 2007
- Kwon S, Cho H, Ha S, Lee W, Yang S, Sung W, Korean Chem. Eng. Res., 45(6), 638, 2007
- Bae J, Sung W, Kwon S, Korean Chem. Eng. Res., 45(3), 304, 2007
- You HD, Korean Chem. Eng. Res., 15(1), 61, 1977
- Sharifi M, Ahmadi M, J. Canadian Petroleum Technology, 48(9), 6, 2009
- Sanni MO, Gringarten AC, Society of Petroleum Engineers, Denver, U.S.A. (2008).
- Gringarten AC, et al., Society of Petroleum Engineers (2006).
- Jones J, Raghavan R, SPE Form. Eval., 3(03), 578, 1988
- Raghavan R, SPE Form. Eval., 4(04), 585, 1989
- Bozorgzadeh M, Gringarten AC, Evaluation Eng., 9(05), 596, 2006
- Gringarten AC, et al., Society of Petroleum Engineers: Texas (2000).
- Xu S, Lee WJ, Houston, Texas (1999).
- Mazloom J, Rashidi F, Pet. Sci. Technol., 24(2), 145, 2006
- Yousefi SH, Eslamian A, Rashidi F, Korean J. Chem. Eng., 31(1), 20, 2014
- Shahbazi S, Maarefvand P, Gerami S, J. Pet. Sci. Eng., 145, 668, 2016
- Van Poolen H, Oil Gas J., 62(37), 138, 1964
- Ramey H, J. Canadian Petroleum Technology, 9(01), 1970
- Odeh A, J. Pet. Technol., 21(02), 207, 1969
- Satman A, Los Angeles, California (1980).
- Olarewaju JS, Lee WJA, Society of Petroleum Engineers, Ventura, California (1987).
- Olarewaju JS, Lee JW, Lancaster DE, SPE Form. Eval., 6(01), 79, 1991
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