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Great Eastern Energy & Development Corporation
550 W. Texas, Suite 660, Midland, Texas 79701
Phone: 432/682-1178
Fax: 432/687-5725
E-mail: GEED2000@aol.com
EXPLORATION & PRODUCTION
Wildcat and 3-D Prospects
PRODUCTION EQUITY PARTNERS
Exploit PDP Equity to fund projects
Buy Interests Retain Operations
CASH PROPERTY PURCHASES
Kansas-Texas-New Mexico-Rockies
Purchases from $100,000 - $25,000,000
Operated or Non-Operated
Working or Royalty Interests
Kevin O. Butler
Bill Robinson
David Shetler
Mike Davignon
President
VP-Expl./Prod.
Acquisitions
Geologist
Midland, TX.
Midland, TX.
Dallas, TX.
Bogue, Ks.
432-682-1178
432-682-1178
214-459-1214
785-421-2346
ABSTRACT
Understanding Mississippi Dolomite Reservoirs in Central Kansas
Martin K. Dubois, Alan P. Byrnes, and Saibal Bhattacharya.
Mississippian reservoirs in Kansas have produced one billion barrels of oil and, having accounted for 33% of
the total state production over the last decade, are of increasing importance. Dolomites of the Spergen, Warsaw
and Osage in central Kansas account for the majority of this production. Recognition of distinct facies and
their stacking relationships in electric logs facilitates reservoir characterization for the identification and exploi-
tation of bypassed reserves through placement of vertical and horizontal infill wells or perforations in existing
wells, and assists exploration and development strategies. Rock properties (porosity, permeability and capillary
pressure) and water saturations are facies dependent. Dolomites having grainier primary textures tend to have
higher permeability for a given porosity, lower oil threshold entry pressure and lower water saturations than do
dolomites with muddier primary textures. Dolomitized mudstone pore systems are dominated by microporosity
and small pore throats, which result in higher saturations. In a gross pay interval (above oil-water contact) with
similar porosity throughout, thin beds of dolomitized packestones are recognized by higher resistivity (lower
water saturation, pay). This facies is often interbedded with thin dolomitized mudstones that exhibit low resis-
tivity (higher water saturation, non pay). Both radiation guard logs and dual porosity-resistivity logs often pro-
vide sufficient resolution to discriminate facies in the Mississippi dolomites of central Kansas.