AAPG Studies in Geology No. 50,
(Section Title: General Geology of the Ferron Sandstone) Chapter 10: Facies and
Permeability Relationships for Wave-Modified and Fluvial-Dominated Deposits of the
Cretaceous Ferron Sandstone, Central Utah, by Ann Mattson and Marjorie A. Chan, Pages 251
- 276
from:
AAPG Studies in Geology No. 50: Regional
to Wellbore Analog for Fluvial-Deltaic Reservoir Modeling: The Ferron Sandstone of Utah,
Edited by Thomas C. Chidsey, Jr., Roy D. Adams, and Thomas H. Morris
Copyright © 2004 by The American Association of Petroleum Geologists and the
Society of Exploration Geophysicists. All rights reserved.
General Geology of the Ferron Sandstone
Chapter 10:
Facies and Permeability Relationships for Wave-Modified and Fluvial-Dominated
Deposits of the Cretaceous Ferron Sandstone, Central Utah
Ann Mattson1 and Marjorie A. Chan1
1Department of Geology and Geophysics, University of Utah, Salt Lake
City, Utah
ABSTRACT
Two parasequence intervals in the Cretaceous Ferron Sandstone Member of
the Mancos Shale exhibit contrasting facies and permeability relationships that can be
used as models for reservoir characterization. Stratigraphic sections, permeability
transects, photomosaic panels, and drill-hole core data are combined to establish
relationships between sedimentary features and permeability, and to create a
three-dimensional (3-D) framework. The fluvial-dominated bedset of one parasequence
locally exhibits seaward-dipping clinoform geometries. In contrast, the wave-modified
parasequence set contains tabular facies that range from foreshore to prodelta
environments. Acomparison of these two depositional types shows the fluvial-dominated
deposits contains: (1) higher percent shale, (2) lower degree of bioturbation, (3) finer
average grain size in reservoir facies, (4) overall lower permeability values, and (5)
low-permeability bounding layers between bedforms.
