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Open AccessArticle

Three-Dimensional Modeling and Fluid Flow Simulation for the Quantitative Description of Permeability Anisotropy in Tidal Flat Carbonate

1
Geosciences Department, College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Building 76, Dhahran 31261, Saudi Arabia
2
Center for Environment & Water, Research Institute, King Fahd University of Petroleum & Minerals, Building 15, Dhahran 31261, Saudi Arabia
*
Author to whom correspondence should be addressed.
Energies 2020, 13(21), 5557; https://doi.org/10.3390/en13215557
Received: 15 September 2020 / Revised: 11 October 2020 / Accepted: 16 October 2020 / Published: 23 October 2020
(This article belongs to the Section Geo-Energy)
Three-dimensional (3D) facies and petrophysical models were generated from previously published data of carbonate strata in the Dam Formation (eastern Saudi Arabia) to quantitatively investigate, describe, understand, model, and predict the permeability anisotropy in tidal flat carbonate on the basis of a sequence stratigraphic framework. The resulting 3D models were used to conduct fluid flow simulations to demonstrate how permeability anisotropy influences the production of hydrocarbons and ultimately affects decisions concerning future drilling in the exploration and development of carbonate reservoirs with tidal flat strata. The constructed 3D facies model consists of four lithofacies associations, two of which are grain-dominated associations and two of which are mud-dominated associations. These lithofacies associations vary spatially in four reservoir zones (zones 1 to 4), which represent two fourth-order sequences in the uppermost part of the Dam Formation. Zones 1 and 3 consist of transgressive parasequences, and zones 2 and 4 consist of the regressive parasequences of these sequences. The 3D porosity and permeability models have a coherent match with the distribution of the lithofacies and the stratigraphic framework of the Dam Formation. The results suggest that the permeability anisotropy in zones 1 and 3 is controlled by the occurrence of the grain-dominated lithofacies associated with tidal flat channels. This lithofacies association overlies the sequence boundaries of sequences 1 and 3, forms reservoir bodies with relatively high permeability values, and is elongated perpendicular to the shoreline of the depositional environment. In contrast, permeability anisotropy in zones 2 and 4 is thought to be controlled by the occurrence of the grain-dominated lithofacies associated with the oolitic shoal. This lithofacies association overlies the maximum flooding surface of sequences 2 and 4, forms reservoir bodies with relatively high permeability values, and is elongated parallel to the shoreline of the depositional environments. Fluid flow simulation results suggest that the trend in hydrocarbon production from the constructed 3D models depends on permeability anisotropy in each reservoir zone. Thus, recognizing trends in permeability anisotropy, which can be predicted using sequence stratigraphy, could help to identify potential areas for future drilling. View Full-Text
Keywords: outcrop reservoir analog; tidal flat; reservoir performance; future drilling; reservoir quality prediction outcrop reservoir analog; tidal flat; reservoir performance; future drilling; reservoir quality prediction
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MDPI and ACS Style

Eltom, H.A.; Saraih, N.A.; Esteva, O.G.; Kusuma, L.; Ahmed, S.; Yassin, M.A. Three-Dimensional Modeling and Fluid Flow Simulation for the Quantitative Description of Permeability Anisotropy in Tidal Flat Carbonate. Energies 2020, 13, 5557. https://doi.org/10.3390/en13215557

AMA Style

Eltom HA, Saraih NA, Esteva OG, Kusuma L, Ahmed S, Yassin MA. Three-Dimensional Modeling and Fluid Flow Simulation for the Quantitative Description of Permeability Anisotropy in Tidal Flat Carbonate. Energies. 2020; 13(21):5557. https://doi.org/10.3390/en13215557

Chicago/Turabian Style

Eltom, Hassan A.; Saraih, Nabil A.; Esteva, Oliver G.; Kusuma, Lundi; Ahmed, Saleh; Yassin, Mohamed A. 2020. "Three-Dimensional Modeling and Fluid Flow Simulation for the Quantitative Description of Permeability Anisotropy in Tidal Flat Carbonate" Energies 13, no. 21: 5557. https://doi.org/10.3390/en13215557

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