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Stratigraphy, Gas Occurrence, Formation Eval...

SKU: GRI-92/0258
Stratigraphy, Gas Occurrence, Formation Evaluation and Fracture Characterization of the Antrim Shale, Michigan Basin

To gain an understanding of geologic and geochemical characteristics that may influence gas production from the Antrim Shales, baseline data have been collected and analyzed. Analysis indicated that large quantities of gas had been generated from the black shales of the formation by thermal maturation of a marine kerogen.
Document Type
Report
Report Type
Topical Report
Report Period
01/90 - 03/92
Corporate Source
Advanced Resources International Inc., Lakewood, CO
Sponsor
Gas Research Institute, Chicago, IL
Pagination
153p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
To gain an understanding of geologic and geochemical characteristics that may influence gas production from the Antrim Shales, baseline data have been collected and analyzed. Analysis indicated that large quantities of gas had been generated from the black shales of the formation by thermal maturation of a marine kerogen. Much of the gas appears to have remained in the shales from which it was generated. Measured adsorption isotherms indicate that adsorption of gas on organic rich material is the primary storage mechanism in the shale. Permeability appears assisted by the development of open and partially open natural fractures. Better producing wells also show greater fracture intensity and diversity of fracture orientations. To identify the aspects of Antrim geology which most affect the accumulation of mobile gas concentrations and reservoir permeability, previous geologic work was extensively reviewed. Core, geophysical log, and production data were then collected from new project wells in the area, and used for more detailed mapping. The report includes regional cross-sections in Appendix A in the first volume, and volume II is comprised of several more appendixes.
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