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Characterization of reservoirs and depositional study of J-P Field, shallow offshore of Niger Delta Basin, Nigeria

Adagunodo, T. A. and Bayowa, O.G. and Alatise, OluwaseunEmmanuel and Oshonaiye, Adeola Opeyemi and Adewoyin, O.O and Opadele, Victor Onaolamipo (2022) Characterization of reservoirs and depositional study of J-P Field, shallow offshore of Niger Delta Basin, Nigeria. Scientific African.

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Well log data interpretation was carried out over J-P Field in the Niger Delta, Nigeria. This was done with a view to characterizing the reservoirs based on the estimation of petro- physical parameters and to assessing the environment of deposition in J-P Field. Seven reservoirs were mapped and correlated across the four drilled wells in J-P Field. Petro- physical parameters such as porosity, volume of shale, water saturation and hydrocarbon saturation were estimated. In addition, depositional environments of each reservoir in J-P Field were determined based on the gamma ray responses. This study reveals that the range of petrophysical parameters across the delineated reservoirs; for porosity varies from 19 to 21%, thickness varies from 24 to 122 m, volume of shale varies from 15 to 29%, water saturation varies from 22 to 60% and hydrocarbon saturation varies from 40 to 78%. The depositional environment was interpreted as comprised of prograding deltas, transgressive marine sands, fluvial channels and deltaic settings. It is concluded that J-P Field has a porosity range varying from good to very good in quality and high hydrocarbon saturation of oil. Furthermore, the study revealed that J-P Field falls within the marginal marine depositional environment

Item Type: Article
Uncontrolled Keywords: Petrophysical analysis Reservoir characterization Depositional environment Well logging interpretation Niger Delta
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: AKINWUMI
Date Deposited: 16 May 2023 12:32
Last Modified: 16 May 2023 12:32

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