Integrated well data and 3d seismic inversion study for reservoir delineation and description

Imran, Q.S. and Siddiqui, N.A. and Latif, A.H.A. and Bashir, Y. and Ali, A.A.A.S. and Jamil, M. (2020) Integrated well data and 3d seismic inversion study for reservoir delineation and description. Bulletin of the Geological Society of Malaysia, 70. pp. 209-220.

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Abstract

Offshore petroleum systems are often very complex and subtle because of a variety of depositional environments. Characterizing a reservoir based on conventional seismic and well-log stratigraphic analysis in intricate settings often leads to uncertainties. Drilling risks, as well as associated subsurface uncertainties can be minimized by accurate reservoir delineation. Moreover, a forecast can also be made about production and performance of a reservoir. This study is aimed to design a workflow in reservoir characterization by integrating seismic inversion, petrophysics and rock physics tools. Firstly, to define litho facies, rock physics modeling was carried out through well log analysis separately for each facies. Next, the available subsurface information is incorporated in a Bayesian engine which outputs several simulations of elastic reservoir properties, as well as their probabilities that were used for post-inversion analysis. Vast areal coverage of seismic and sparse vertical well log data was integrated by geostatistical inversion to produce acoustic impedance realizations of high-resolution. Porosity models were built later using the 3D impedance model. Lastly, reservoir bodies were identified and cross plot analysis discriminated the lithology and fluid within the bodies successfully. © 2020, Geological Society of Malaysia. All rights reserved.

Item Type: Article
Impact Factor: cited By 3
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 25 Mar 2022 02:56
Last Modified: 25 Mar 2022 02:56
URI: http://scholars.utp.edu.my/id/eprint/29818

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