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International Journal of Innovation and Applied Studies
ISSN: 2028-9324     CODEN: IJIABO     OCLC Number: 828807274     ZDB-ID: 2703985-7
 
 
Monday 20 May 2019

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Petrophysical Properties Evaluation for Reservoir Characterisation of SEYI Oil Field (Niger-Delta)


Volume 3, Issue 3, July 2013, Pages 765–773

 Petrophysical Properties Evaluation for Reservoir Characterisation of SEYI Oil Field (Niger-Delta)

John Olurotimi AMIGUN1 and Oluwaseyi Ayokunle ODOLE2

1 Department of Applied Geophysics, Federal University of Technology, Akure, Ondo State, Nigeria
2 Department of Applied Geophysics, Federal University of Technology, Akure, Ondo State, Nigeria

Original language: English

Received 30 April 2013

Copyright © 2013 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


This paper presents results of a study conducted to determine and evaluate the petrophysical properties of "SEYI" oil field, Niger delta with a view to understand their effects on the reservoirs hydrocarbon prospect and oil productivity of the field. The evaluated properties include porosity, permeability, fluid saturation, net / gross thickness and mobility which are all inferred from geophysical wire-line logs. A suite of wire-line logs comprising of gamma ray, resistivity, spontaneous potential and density logs for four wells from 'SEYI' oil field were analysed for reservoir characterisation of the field. The analyses carried out involves delineation of lithologies, identification of reservoirs and fluid types, wells correlation and determination of petrophysical parameters of identified reservoirs. Seven reservoirs namely: A, B, C, D, E, F and G were delineated with their tops and bases at depth from 2396m to 3429m. Their analysis indicate the presence of hydrocarbon in all the reservoirs. Computed petrophysical parameters across the reservoirs gave porosity as ranging from 0.22 to 0.31; permeability 881.58md to 14425.01md and average hydrocarbon saturation of 41.44%, 20.29%, 30.82%, 37.92%, 51.20%, 91.97% and 85.11% for reservoir A, B, C, D, E, F and G respectively. These results together with the determined movable hydrocarbon index (MHI) values (0.05 to 0.75) of the reservoir units suggest high hydrocarbon potential and a reservoir system whose performance is considered satisfactory for hydrocarbon production.

Author Keywords: Wells correlation, Wire-line logs, Hydrocarbon prospect, Porosity, Niger Delta.


How to Cite this Article


John Olurotimi AMIGUN and Oluwaseyi Ayokunle ODOLE, “Petrophysical Properties Evaluation for Reservoir Characterisation of SEYI Oil Field (Niger-Delta),” International Journal of Innovation and Applied Studies, vol. 3, no. 3, pp. 765–773, July 2013.