PETROPHYSICAL STUDY OF ‘GLORY FIELD’ RESERVOIR IN SOUTHERN PART OF NIGER DELTA, NIGERIA USING WELL LOG DATA

Ozoemena C. Mark (), Uko E. Daniel and Horsfall I. Opiriyabo
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Ozoemena C. Mark: Department of Physics, Faculty of Science, Rivers State University, Nkpolu-Oroworukwo Port Harcourt, Nigeria.
Uko E. Daniel: Department of Physics, Faculty of Science, Rivers State University, Nkpolu-Oroworukwo Port Harcourt, Nigeria.
Horsfall I. Opiriyabo: Department of Physics, Faculty of Science, Rivers State University, Nkpolu-Oroworukwo Port Harcourt, Nigeria.

Earth Sciences Malaysia (ESMY), 2022, vol. 6, issue 1, 40-49

Abstract: This purpose of this study is to evaluate the petrophysical properties of hydrocarbon bearing reservoirs in ‘Glory Field’ onshore Niger Delta using well log data from five wells. Petrophysical properties evaluated are shale volume, thickness, porosity, net to gross, formation factor, irreducible water saturation, permeability, water saturation, hydrocarbon saturation and pay thickness. The well logs suite contained the following logs: gamma ray, resistivity, density and neutron logs. A total of three reservoir sands (Sand A, Sand B, and C) were identified and correlated across all five wells using Schlumberger Petrel Software. From the result, on average density, Vp/Vs ratio, AI, shale volume, net to gross ratio, net thickness, effective porosity, permeability, water saturation and hydrocarbon saturation values are 2.15g/cm3, 2.28, 5406.67gcm3ms-1, 26%, 74%, 66.99ft, 25%, 2331.14mD, 48% and 52% respectively for sand A reservoir, while 2.17 g/cm3, 2.05, 6117.38 gcm3ms-1,14%, 86%, 185.04 ft, 26%, 2359.88mD, 56% and 46% respectively for sand B reservoir, and 2.18g/cm3, 2.01, 6275.95gcm3ms-1, 14%, 86%, 197.52ft, 25%, 2121.27mD, 53% and 47% respectively for sand C reservoir. The results of this research revealed very good effective porosity (>20%), excellent reservoir permeability (>1500mD) and pay zone thicknesses exceeding 70ft which are sufficient for hydrocarbon production and field development.

Keywords: Petrophysics; Well log; Reservoir; Water saturation; Gamma ray. (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbesmy:v:6:y:2022:i:1:p:40-49

DOI: 10.26480/esmy.01.2022.40.49

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