Asian Journal of Geological Research

Formation Evaluation of Wells 1 & 2 in “H” Field, in the Niger Delta Region, Nigeria

Alegimenlen Husain Obianjulu *

Department of Physics/Geophysics, Ambrose Alli University, Ekpoma, Nigeria.

Aigbedion Isaac

Department of Physics/Geophysics, Ambrose Alli University, Ekpoma, Nigeria.

Ojese John Otuokpaikhian

Department of Physics/Geophysics, Ambrose Alli University, Ekpoma, Nigeria.

Mohammed Mojeed Ayomide

Department of Geology and Mineral Science, University of Ilorin, Nigeria.

Gbelekale Oluwadamilare Temitope

Department of Chemistry, Lagos State University, Nigeria.

*Author to whom correspondence should be addressed.

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Abstract

Based on data from two wells in the "H" field (Niger Delta Region), a formation evaluation was performed to locate hydrocarbon-yielding reservoirs and examine reservoir characteristics. Techlog software was used to analyze the geophysical logs, i.e., Gamma Ray log, Resistivity log, Spontaneous Potential log, Neutron log, and Density log. Within the interval logged, the lithology of sandstone and shale could be delineated, which is a characteristic of the Agbada Formation. The petrophysical characteristics of the reservoirs are good especially at the areas of interest (hydrocarbon zones). The reservoirs within the field were shown to be very productive based on their porosity, permeability, shale volume, and hydrocarbon pore volume values. However, the consistency of the findings was examined using geological data and a mud logger. This study has demonstrated that formation evaluation plays a vital role in reservoir characterization.

Keywords: Formation evaluation, techlog software, geophysical logs, hydrocarbon saturation

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