Reservoir characterization of the middle Miocene Kareem sandstones, Southern Gulf of Suez Basin, Egypt
نویسندگان
چکیده
Abstract In this study, we have assessed the petrographical and petrophysical characteristics of progradational, syn-rift Middle Miocene Rahmi sandstone gas reservoir (Lower Kareem Formation) from East Matr Amal hydrocarbon fields, southern Gulf Suez by integrating sidewall cores wireline logs. We interpreted a gradient around 0.09 psi/ft downhole pressure measurements. Based on well log-based analyses, that in field has 0.10–0.18 v/v total porosity, 0.08–0.14 effective 0.08–0.17 shale volume along with water saturation ranging between 0.32 v/v. The correlated is observed to higher porosities (0.17–0.22 porosity 0.15–0.19 porosity), although it exhibits (0.38–0.54 v/v). consists very fine coarse grained, poorly moderately sorted, subangular subrounded, cemented compacted sublithic, subarkosic arkosic arenites moderate good intergranular porosity. Abundant lithic fragments poor textural maturity Rahimi sandstones imply high energy shoreface depositional environment close proximity hinterland. Porosity reduction attributed dolomite cementation, kaolinite, formation pseudomatrix mechanical compaction argillaceous lithics, quartz overgrowth. Long concavo-convex contacts indicate silica needed for cementation was derived degree chemical grains. Partial near-complete dissolution labile grains (feldspar lithics) quality improvement. Scattered cements prevented more severe compaction.
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ژورنال
عنوان ژورنال: Geomechanics and geophysics for geo-energy and geo-resources
سال: 2022
ISSN: ['2363-8427', '2363-8419']
DOI: https://doi.org/10.1007/s40948-022-00437-8