Petrophysical evaluation of selected wells in FUBA field reservoir in Niger Delta, Nigeria are here presented. A suite of well logs comprising gamma ray, deep resistivity, density, sonic and neutron were used in the analysis. Petrophysical properties evaluated are; thickness, porosity, permeability, water saturation and hydrocarbon saturation. Two distinct horizons were mapped. The lithostratigraphy correlation section revealed that each of the sand units spread over the field differ in thickness with some units occurring at greater depth than their adjacent unit, that is possibly an evidence of faulting. From the result of Petrophysical evaluation, on average, net thickness, effective porosity, permeability, water saturation, hydrocarbon saturation and shale volume values are 13.50 ft, 23.50%, 463.70 mD, 30.50%, 69.50% and 12.50% for reservoir sand Q and 45.00 ft, 22.20%, 495.24 mD, 32% and 68% and 16.50% for reservoir sand R. The porosity and permeability values have been classed as good to excellent for reservoir sand Q and R respectively. The hydrocarbon saturation and water saturation values are good for reservoir development for production. The results of the sand-shale lithology calculated indicate the following (i) the fraction of shale in the reservoirs is quite low; (ii) sandstone volume decreased with increasing depth while shale volume increased with depth; (iii) an inverse relationship between permeability and shale volume and a direct relationship between permeability and the volume of sand in the reservoirs. This is typical of clastic reservoir systems in the Niger Delta. An analysis of the petrophysical attributes maps indicates how the petrophysical qualities vary across the reservoirs. The results for this work revealed the presence of hydrocarbon in both reservoirs across the wells in the study area.

Keywords: Petrophysical evaluation, Petrophysical attributes map, Faults, Niger Delta, Nigeria.

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Source of Funding:

This study did not receive any grant from funding agencies in the public, commercial, or not-for-profit sectors.

Competing Interests Statement:

The author declares no competing financial, professional, or personal interests.

Consent for Publication:

The author declares that she consented to the publication of this study.

Acknowledgements:

The author is grateful to Shell Petroleum Development Company of Nigeria (SPDC), Port Harcourt Nigeria for the release of the academic data for the purpose of this study.