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Strategies for Modeling Depositional Heterogeneity of Carbonate Ramps Using Outcrop Analogs and Multiple Point Statistics

Ted Playton, J.A.M. Kenter, Marjorie Levy, Aurélien Pierre, Gareth Jones, Paul M. Harris

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Abstract

Outcrop exposures offer continuity, correlation, and resolution of geological data well beyond that of the subsurface, and serve as ‘idealized’ analogs for reservoirs. In this study, measured sections, photomosaic mapping, DGPS, and LIDAR data were collected along a 38 km dip exposure of Lower Jurassic carbonate ramp strata in the High Atlas of Morocco, and converted into a static model using multiple point statistics (MPS). The goal was to generate new modeling strategies through simulation of ramp depositional heterogeneity during both transgressive (TST) and highstand (HST) conditions, and for each of the facies belts observed (inner, middle, outer, and basinal ramp settings).

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What this paper is about

Outcrop exposures offer continuity, correlation, and resolution of geological data well beyond that of the subsurface, and serve as ‘idealized’ analogs for reservoirs. In this study, measured sections, photomosaic mapping, DGPS, and LIDAR data were collected along a 38 km dip exposure of Lower Jurassic carbonate ramp strata in the High Atlas of Morocco, and converted into a static model using multiple point statistics (MPS). The goal was to generate new modeling strategies through simulation of ramp depositional heterogeneity during both transgressive (TST) and highstand (HST) conditions, and for each of the facies belts observed (inner, middle, outer, and basinal ramp settings).

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Available abstract

Outcrop exposures offer continuity, correlation, and resolution of geological data well beyond that of the subsurface, and serve as ‘idealized’ analogs for reservoirs. In this study, measured sections, photomosaic mapping, DGPS, and LIDAR data were collected along a 38 km dip exposure of Lower Jurassic carbonate ramp strata in the High Atlas of Morocco, and converted into a static model using multiple point statistics (MPS). The goal was to generate new modeling strategies through simulation of ramp depositional heterogeneity during both transgressive (TST) and highstand (HST) conditions, and for each of the facies belts observed (inner, middle, outer, and basinal ramp settings).

Key concepts: Outcrop, Sedimentary depositional environment, Geology, Facies, Carbonate, Carbonate platform, Lidar, Paleontology

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