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Innocent Sunday Didei
T.S. Akana
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T.S. Akana
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International Journal Geology and Mining

Source rock maturation studies using vitrinite reflectance and geothermal data from six wells in Gabo and Wabi fields, onshore Niger Delta, Nigeria

Didei I.S., Akana T.S.

Department of Geology, Niger Delta University, Bayelsa State, Nigeria.

Accepted 08 October, 2016.

Citation: Didei IS, Akana TS (2016). Source rock maturation studies using vitrinite reflectance and geothermal data from six wells in Gabo and Wabi fields, onshore Niger Delta, Nigeria. International Journal Geology and Mining 2(2): 064-070.

Copyright: © 2016 Didei and Akana. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Abstract

The source rock maturation levels of six wells in GABO and WABI fields, Niger delta sedimentary basin were evaluated using vitirinite reflectance and geothermal data. The results of the analysis show that the source rocks are mature. Vitrinite reflectance was measured and analyzed in all wells containing greater than 1.0 percent Total organic carbon content (TOC). The thermal alternation index (TAI) values obtained show that temperature was sufficiently good to generate hydrocarbons in the source rock indicating the maturity of the source rock. The GABO and WABI fields have a good range of Vitrinite reflectance values which probably indicate the temperature that were reached in the fields. The average reflectance of Vitrinite in GABO and WABI fields are 0.35 and 0.75, respectively. These values are consistent and suggest that basinal source rocks have begun to generate hydrocarbon.

Key Words: Source rock, maturity, total organic carbon content, vitrinite reflectance, thermal alteration index