Correlating the PVT Properties of Nigerian Crudes

[+] Author and Article Information
D. A. Obomanu

Nigerian National Petroleum Corporation, Research and Development, Port Harcourt, Nigeria

G. A. Okpobiri

University of Port Harcourt, Department of Petroleum Engineering, Port Harcourt, Nigeria

J. Energy Resour. Technol 109(4), 214-217 (Dec 01, 1987) (4 pages) doi:10.1115/1.3231349 History: Received January 07, 1987; Revised August 10, 1987; Online October 22, 2009


Existing correlations for predicting solution gas oil ratio, R s , and oil formation volume factor, B o , gave standard deviations as high as 50 and 12 percent, respectively, for Nigerian crudes. New correlations developed using 503 Pressure-Volume-Temperature (PVT) data points from 100 Nigerian crude oil reservoirs of the Niger Delta Basin are presented. The correlations for R s and B o predict values from different reservoirs within 6 and 2 percent standard deviations, respectively, and will apply to crudes of specific gravity range 0.811 to 0.966. These correlations are applicable to other crudes with characteristics similar to those of Nigerian crudes.

Copyright © 1987 by ASME
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