--> Abstract: Reservoir Characterization of the Silurian “Clinton” Sandstone in the East Canton Oil Field, Ohio, by R. A. Riley, J. Wicks, and C. J. Perry; #90095 (2009)

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Reservoir Characterization of the Silurian “Clinton” Sandstone in the East Canton Oil Field, Ohio

Ronald A. Riley1, John Wicks2, and Christopher J. Perry1
1Ohio Division of Geological Survey, Columbus, OH 43229, [email protected], [email protected]
2J L Wicks Exploration, Wooster, OH 44691, [email protected]

The Ohio Division of Geological Survey, in conjunction with private industry, currently is conducting a detailed reservoir characterization of the Silurian “Clinton” sandstone in the mature East Canton oil field. The primary objective is to evaluate the potential for CO2-EOR (enhanced oil recovery). This industry-government consortium was partially funded by the U.S. Department of Energy. The East Canton oil field has produced approximately 95 million barrels of oil since 1947 from approximately 3,100 wells within 175,000 acres. It is estimated to have over one billion barrels of original oil-in-place. To date, there have been no secondary recovery efforts in this field because of the tight, heterogeneous nature of this reservoir.

Regional wireline stratigraphic cross sections were generated across and surrounding the East Canton oil field and correlated to 4 full-diameter cores and published reports to establish the regional “Clinton” sequence stratigraphy and depositional setting. The stratigraphic framework developed by these cross sections established regionally consistent formation/interval boundaries that were used for construction of structure, isopach, and facies maps. Detailed reservoir maps of up to five sandstone units and surrounding impermeable shale units within the “Clinton” interval are being mapped and related to production. Reservoir fluid flow regimes are dominantly controlled by stratigraphy within these mappable units and their interaction with natural fractures.

Heterogeneity in the “Clinton” sandstone is controlled by high-stand, fluvial-dominated deltaic deposits, cleaner low-stand incised-valley-fill successions, and dirtier offshore shelf sands. Detailed mapping of these depositional units and fracture systems is necessary to better understand reservoir compartmentalization, fluid flow, unswept oil and for planning any future EOR development.

 

AAPG Search and Discovery Article #90095©2009 AAPG Eastern Section Meeting, Evansville, Indiana, September 20-22, 2009