Sedimentary facies analysis, seismic interpretation, and reservoir rock typing of the syn-rift Middle Jurassic reservoirs in Meleiha concession, north Western Desert, Egypt

The Middle Jurassic syn-rift sediments of the Khatatba Formation contain not only the principle source rock organofacies in the north Western Desert (NWD), but also several potential sandstone reservoir targets. However, controls on the reservoir quality of the Khatatba facies and spatiotemporal evo...

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Bibliographic Details
Published in:Journal of petroleum exploration and production technology 2023-11, Vol.13 (11), p.2171-2195
Main Authors: Hassan, Ahmed Rezk, Radwan, Ahmed A., Mahfouz, Kamel H., Leila, Mahmoud
Format: Article
Language:English
Subjects:
Carbonates
Components
Deserts
Earth and Environmental Science
Earth Sciences
Energy Systems
Fluid flow
Geology
Heterogeneity
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Jurassic
Khatatba
Leases
Middle Jurassic
Monitoring/Environmental Analysis
Offshore Engineering
Original Paper-Exploration Geology
Photosystem I
Pore water
Pores
Reflectance
Reservoir rock typing
Reservoirs
Rocks
Sandstone
Sediment
Sedimentary facies
Sedimentary rocks
Sediments
Seismic interpretation
Shushan Basin
Spatial distribution
Syn-rift sediments
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Summary:The Middle Jurassic syn-rift sediments of the Khatatba Formation contain not only the principle source rock organofacies in the north Western Desert (NWD), but also several potential sandstone reservoir targets. However, controls on the reservoir quality of the Khatatba facies and spatiotemporal evolution of the reservoir rock types (RRTs) are still blurred. This study integrates seismic, wireline logs, and conventional core data from some wells in the Meleiha development lease in the NWD to investigate the petrophysical characteristics of the Khatatba reservoir facies, and determine the different RRTs. On seismic, Khatatba Formation consists of high reflectivity, continuous reflections displaying an upward decrease in seismic amplitude corresponding to a fining-upward clastic succession of fluvial–tidal facies. These facies display a large-scale pore system heterogeneity, thereby comprising three different RRTs. RRTI and RRTII rocks have a well-connected pore network dominated by capillary and super-capillary pores (> 10 µm), whereas sub-capillary pores (
ISSN:2190-0558
2190-0566
DOI:10.1007/s13202-023-01677-4