Depositional Environments and Diagenesis of Some Nonmarine Upper Cretaceous Reservoir Rocks, Uinta Basin, Utah

Keighin, C.W.; Fouch, Thomas D.

doi:10.2110/pec.81.31.0109

Cited by 10 publications

(2 citation statements)

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“…In the Paleocene-Eocene the Uinta Basin was part of a large lacustrine system. Reservoir quality in most of the fields has been enhanced by the development of fractures and secondary porosity, and the traps therefore also have a diagenetic component to them (Keighin and Fouch 1981). 15.25) and shaling out to the south.…”

Section: Red Wash Field Utahmentioning

confidence: 99%

The Geology of Fluvial Deposits

Miall¹

2006

786

1,053

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Section: Red Wash Field Utahmentioning

confidence: 99%

The Geology of Fluvial Deposits

Miall¹

2006

786

1,053

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“…Because diagenetic and mineral composition vary both geographically and stratgraphically in the fluvial deposits of the Mesaverde Group (Keighin and Fouch, 1981;Johnson and Roberts, 2003;Stroker et al, 2013), without conducting detailed petrographic work it is only possible to broadly speculate on geologic drivers for the single-story channel body interclass confusion. It was observed in core that single-story channel bodies could range from upper very fine to medium sand grain size.…”

Section: The Troublesome Single-story Channel Body Architectural Elemmentioning

confidence: 99%

Geologically constrained electrofacies classification of fluvial deposits: An example from the Cretaceous Mesaverde Group, Uinta and Piceance Basins

Allen

Pranter

2016

Bulletin

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Statistical classification methods consisting of the k-nearest neighbor algorithm (k-NN), a probabilistic clustering procedure (PCP), and a novel method that incorporates outcrop-based thickness criteria through the use of well log indicator flags are evaluated for their ability to distinguish fluvial architectural elements of the upper Mesaverde Group of the Piceance and Uinta Basins as distinct electrofacies classes. Data used in training and testing of the classification methods come from paired cores and well logs consisting of 1626 wireline log curve samples each associated with a known architectural element classification as determined from detailed sedimentologic analysis of cores (N = 9). Thickness criteria are derived from outcrop-based architectural element measurements of the upper Mesaverde Group. Through an approach that integrates select classifier results with thickness criteria, an overall accuracy (number of correctly predicted samples/total testing samples) of 83.6% was achieved for a fourclass fluvial architectural element realization. Architectural elements were predicted with user's accuracies (accuracy of an individual class) of 0.891, 0.376, 0.735, and 0.985 for the floodplain, crevasse splay, single-story channel body, and multistory channel body classes, respectively. Without the additional refinement by incorporation of thickness criteria, the k-NN and PCP classifiers produced similar results. In both the k-NN and PCP techniques, the combination of gamma ray and bulk density wireline log curves proved to be the most useful assemblage tested.

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Lake deposits

Selley¹

1985

Ancient Sedimentary Environments

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Depositional Environments and Diagenesis of Some Nonmarine Upper Cretaceous Reservoir Rocks, Uinta Basin, Utah

Cited by 10 publications

References 0 publications

The Geology of Fluvial Deposits

The Geology of Fluvial Deposits

Geologically constrained electrofacies classification of fluvial deposits: An example from the Cretaceous Mesaverde Group, Uinta and Piceance Basins

Lake deposits

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