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Reservoir Property Analysis, Mangels 24-2SD, Wo...

SKU: GRI-04/0060
Reservoir Property Analysis, Mangels 24-2SD, Woodford Shale, Cherokee Basin

This report summarizes the procedures and results of reservoir property analysis of core samples from the Woodford Shale (Cherokee Basin) at Devon Energy Corporationís Mangels 24-2SD corehole in Nowata County, Oklahoma. The project evaluated the sorbed gas content, gas composition, gas storage capacity, and gas-in-place volume of the Woodford Shale.
Document Type
Report
Report Type
Topical Report
Report Period
11/01 - 09/03
Corporate Source
TICORA Geosciences, Inc., Arvada, CO; Tesseract Corp., Park City, UT
Sponsor
Gas Research Institute, Des Plaines, IL
Pagination
170p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
This report summarizes the procedures and results of reservoir property analysis of core samples from the Woodford Shale (Cherokee Basin) at Devon Energy Corporationís Mangels 24-2SD corehole in Nowata County, Oklahoma. The project evaluated the sorbed gas content, gas composition, gas storage capacity, and gas-in-place volume of the Woodford Shale. Gas content estimates were corrected for hydrogen generation, when necessary, and were correlated with sample total organic content (TOC). Gas content was approximately 283.6 scf/ton times the TOC weight fraction. Based upon the gas content/TOC correlation, gas content for these samples ranged from 1.8 to 11.6 scf/ton. Sorbed gas composition consisted of 77.4 mole % methane, 3.03 mole % ethane, 4.5 mole % propane and heavier hydrocarbons, 2.4 mole % carbon dioxide, and 12.7 mole % nitrogen. Gas content may only be 78% of the storage capacity suggesting that the shale may be undersaturated. However, the apparent undersaturation is likely due to over-estimates of the reservoir pressure that was assumed and not measured. Methane and multi-component gas storage capacity was directly proportional to the total organic content. Multi-component storage capacity was approximately equal to 362.4 scf/ton times the weight fraction of TOC. Vitrinite reflectance data indicated that the equivalent coal thermal maturity would be high volatile B bituminous. A combination of log and core data indicated that the gas storage capacity of a 640 acre area that averages 68 feet in thickness could contain 1.7 Bscf. The gas-in-place volume may only be 1.43 Bscf in the same area.
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