Ferron sandstone - stratigraphy and reservoir analogs, East-Central Utah
- Consulting Geologist, Salt Lake City, UT (United States)
- ARIES Group, Inc., Louisville, CO (United States)
- Utah Geological Survey, Salt Lake City, UT (United States)
The Ferron Sandstone (Upper Cretaceous) crops out along the west flank of the San Rafael Swell of east-central Utah. Exposures were described on photomosaics to better define the stratigraphy, to enhance facies prediction, and establish rules for reservoir modeling within fluvial-deltaic rocks. Major regressive cycles are recognized as parasequence sets composed of several to many parasequences. Each of the seaward-stepping parasequence sets recognized in the Ferron begins with a rapidly thickening and stratigraphically climbing, wave-modified shoreface. In later stages of progradation, deposition is dominated by river influences. Continued regression of the seaway is recorded in outcrop and shows a complex history of delta lobe progradation, switching, and abandonment. Onlapping and stacking of parasequences creates a collage of potential reservoir sweet spots, baffles, and barriers within a parasequence set. Shoreface and delta-front deposits of the older parasequences are commonly eroded by younger distributary and meanderbelt systems that fed younger parasequences of the parasequence sets. The result is numerous and locally thick channel sandstone bodies incised into shoreface and delta-front deposits. Published studies and recently completed work show that upper shoreface, stream mouth-bar, and channel sandstones constitute the best potential reservoir rocks within the Ferron Sandstone.
- OSTI ID:
- 272600
- Report Number(s):
- CONF-9607116-; ISSN 0149-1423; TRN: 96:003409-0008
- Journal Information:
- AAPG Bulletin, Vol. 80, Issue 6; Conference: American Association of Petroleum Geologogists (AAPG) Rocky Mountain section meeting, Billings, MT (United States), 28-31 Jul 1996; Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
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