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Evaluation of optimal reservoir prospectivity using acoustic-impedance model inversion: A case study of an offshore field, western Niger Delta, Nigeria

Oyeyemi , Kehinde D. and Olowokere, Mary Taiwo and Aizebeokhai, A. P. (2017) Evaluation of optimal reservoir prospectivity using acoustic-impedance model inversion: A case study of an offshore field, western Niger Delta, Nigeria. NRIAG Journal of Astronomy and Geophysics, 6 (2). pp. 300-310.

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Abstract

The evaluation of economic potential of any hydrocarbon field involves the understanding of the reservoir lithofacies and porosity variations. This in turns contributes immensely towards subsequent reservoir management and field development. In this study, integrated 3D seismic data and well log data were employed to assess the quality and prospectivity of the delineated reservoirs (H1–H5) within the OPO field, western Niger Delta using a model-based seismic inversion technique. The model inversion results revealed four distinct sedimentary packages based on the subsurface acoustic impedance properties and shale contents. Low acoustic impedance model values were associated with the delineated hydrocarbon bearing units, denoting their high porosity and good quality. Application of model-based inverted velocity, density and acoustic impedance properties on the generated time slices of reservoirs also revealed a regional fault and prospects within the field.

Item Type: Article
Subjects: Q Science > QC Physics
Q Science > QE Geology
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mr. K. D. Oyeyemi
Date Deposited: 12 Jun 2018 07:54
Last Modified: 12 Jun 2018 07:54
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/10914

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