Depositional sequences and characteristics of Ordovician Red River reservoirs, Pennel Field, Williston Basin, Montana

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Authors:Clement, James H.
Author Affiliations:Primary:
Shell Oil Co., Rocky Mt. Div. Corp., Houston, TX, United States
Marathon Oil Co., United States
Volume Title:Carbonate petroleum reservoirs
Volume Authors:Roehl, Perry O., editor; Ginsburg, R. N., editor; Choquette, Philip W.
Source:Carbonate petroleum reservoirs, edited by Perry O. Roehl and Philip W. Choquette, p.71-84. Publisher: Springer-Verlag, New York, NY, United States. ISBN: 0-387-96012-0
Publication Date:1985
Note:In English. 10 refs.; illus. incl. sect., strat. col., sketch map
Summary:Cores of Ordovician Red River producing-zones in Pennel Field exhibit cyclic sequences of marine, intertidal and supratidal rocks. Each cycle begins with normal-marine wackestones passing stratigraphically upward through: 1) burrowed mudstone and wackestone facies, 2) wackestones and packstones and 3) a supratidal facies of laminated mudstones. The sequence is capped by an evaporite facies which effectively seals the reservoir intervals. Dolomites provide the best reservoir rocks and are developed in peritidal intervals. Significant relationships exist among facies based on porosity, permeability and dolomite crystal size. [J.M.H.]
Subjects:Carbonate rocks; Economic geology; Ordovician; Paleozoic; Petroleum; Red River Formation; Reservoir rocks; Sedimentary rocks; Sedimentation; Upper Ordovician; Fallon County Montana; Montana; North America; United States; Williston Basin; Pennel Field
Abstract Numbers:87M/1628
Record ID:1986002354
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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