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Article Type

Research Paper

Abstract

Through the past decade different reservoir characteristics have been investigated by integrating various techniques like Lamda Mu Rho (LMR), Extended Elastic Impedance (EEI) and Amplitude Variation with Offset (AVO) analysis from seismic data. The main challenge behind this paper is to rely on well logging data only to integrate these techniques rather than using seismic data. The first step is determining the petrophysical parameters of the reservoir from the well logs of Well-1A, which encountered a Pliocene gas reservoir located in offshore East Nile Delta, Egypt. Crossplotting is considered a convenient method to discriminate between reservoir and non-reservoir, it yields separate clusters of lithologies and fluid. This was successfully accomplished by Lamda Muo Rho cross plot, and intercept (EEI 00) versus gradient (EEI 900) cross plot. Finally, AVO analysis was conducted to study the AVO response of the reservoir, which proved the classical Class III gas sand response. All the results were conveniently consistent. The findings of this study can help in better understanding the characteristics of this reservoir. Moreover, highlight the importance of this methodology in providing a quick overview of the reservoir properties at Well location before investigating the extension of these properties away from well control by using seismic data volumes.

Keywords

East Nile Delta, Pliocene, LMR, EEI, AVO, Reservoir properties.

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