TY - CHAP
T1 - Petrophysical Properties of the Late Carboniferous and Early Permian Glaciogenic Reservoirs
T2 - 2nd International conference on Mediterranean Geosciences Union, MedGU 2022
AU - Al-Nadabi, Elham K.S.
AU - El-Ghali, Mohamed A.K.
AU - Ilic, Alex
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - The Late Carboniferous and Early Permian Al Khlata Formation represent the lower unit of the Haushi Group, related to the third glacial event in the Arabian Plate. Al Khlata Formation, which is deposited in proglacial fluvial and deltaic systems, is an important hydrocarbon target in Oman. The accurate estimation of the amount of hydrocarbon that can be produced from Al Khlata reservoirs is very challenging because the rock properties between wells in the Block 56 vary significantly, and the distribution of the petrophysical properties is poorly understood. This study aims to construct a petrophysical model and predict the vertical and lateral distribution of the petrophysical properties of the Al Khlata sandstones in Block 56 within depositional facies and sequence stratigraphy. This study is based petrophysical analysis using wireline logs and drilling cuttings. However, the study revealed that the Al Khlata Formation consists of two sandstone bodies: sand 2 and sand 1, (from oldest to youngest), characterized by significant heterogeneity in lithology and petrophysical properties. The thickness of the correlatable sandstone bodies within the Al Khlata Formation varies from one well to another because their deposition was highly controlled by the salt movement during the Late Devonian to the Late Carboniferous hiatus. Moreover, this study has revealed that the correlation between wells allowed the prediction of the influence of the glacial environments on the petrophysical properties of sandstone bodies. There is no consistent trend for the lateral and vertical distribution of porosity and permeability of the lacustrine and deltaic proglacial sandstone bodies, due to the complexity of the glacial environment. The degree of comparison between the two oil-bearing sandstones in terms of petrophysical properties is obvious. For example, sand 2 has good to excellent reservoir quality because of low average shale volume, and good average porosity. Sand 1 is a tight reservoir because it is enriched with shale, has poor porosity, and is very hard to drill because of diamictite. Subsequently, all of that has a significant impact on the hydrocarbon potentiality of each sand. Such modeling will help in drawing more efficient drilling, production, and recovery strategies.
AB - The Late Carboniferous and Early Permian Al Khlata Formation represent the lower unit of the Haushi Group, related to the third glacial event in the Arabian Plate. Al Khlata Formation, which is deposited in proglacial fluvial and deltaic systems, is an important hydrocarbon target in Oman. The accurate estimation of the amount of hydrocarbon that can be produced from Al Khlata reservoirs is very challenging because the rock properties between wells in the Block 56 vary significantly, and the distribution of the petrophysical properties is poorly understood. This study aims to construct a petrophysical model and predict the vertical and lateral distribution of the petrophysical properties of the Al Khlata sandstones in Block 56 within depositional facies and sequence stratigraphy. This study is based petrophysical analysis using wireline logs and drilling cuttings. However, the study revealed that the Al Khlata Formation consists of two sandstone bodies: sand 2 and sand 1, (from oldest to youngest), characterized by significant heterogeneity in lithology and petrophysical properties. The thickness of the correlatable sandstone bodies within the Al Khlata Formation varies from one well to another because their deposition was highly controlled by the salt movement during the Late Devonian to the Late Carboniferous hiatus. Moreover, this study has revealed that the correlation between wells allowed the prediction of the influence of the glacial environments on the petrophysical properties of sandstone bodies. There is no consistent trend for the lateral and vertical distribution of porosity and permeability of the lacustrine and deltaic proglacial sandstone bodies, due to the complexity of the glacial environment. The degree of comparison between the two oil-bearing sandstones in terms of petrophysical properties is obvious. For example, sand 2 has good to excellent reservoir quality because of low average shale volume, and good average porosity. Sand 1 is a tight reservoir because it is enriched with shale, has poor porosity, and is very hard to drill because of diamictite. Subsequently, all of that has a significant impact on the hydrocarbon potentiality of each sand. Such modeling will help in drawing more efficient drilling, production, and recovery strategies.
KW - Al Khlata Formation
KW - Correlation
KW - Hydrocarbon
KW - Log data
KW - Petrophysical properties
KW - Porosity
KW - Reservoir
KW - Sandstone
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UR - https://www.mendeley.com/catalogue/ab92441f-e96f-3d3f-ab94-773074165d40/
U2 - 10.1007/978-3-031-48758-3_74
DO - 10.1007/978-3-031-48758-3_74
M3 - Chapter
AN - SCOPUS:85189501778
SN - 9783031487576
T3 - Advances in Science, Technology and Innovation
SP - 331
EP - 333
BT - Recent Research on Sedimentology, Stratigraphy, Paleontology, Geochemistry, Volcanology, Tectonics, and Petroleum Geology - Proceedings of the 2nd MedGU, 2022 Volume 2
A2 - Çiner, Attila
A2 - Naitza, Stefano
A2 - Radwan, Ahmed E.
A2 - Hamimi, Zakaria
A2 - Lucci, Federico
A2 - Knight, Jasper
A2 - Cucciniello, Ciro
A2 - Banerjee, Santanu
A2 - Chennaoui, Hasnaa
A2 - Doronzo, Domenico M.
A2 - Candeias, Carla
A2 - Rodrigo-Comino, Jesús
A2 - Kalatehjari, Roohollah
A2 - Shah, Afroz Ahmad
A2 - Gentilucci, Matteo
A2 - Panagoulia, Dionysia
A2 - Chaminé, Helder I.
A2 - Barbieri, Maurizio
A2 - Ergüler, Zeynal Abiddin
PB - Springer Nature
Y2 - 27 November 2022 through 30 November 2022
ER -