Howell, Harvey H.1, Lance Harwerth1, Gary K. Rice2
(1) Daubert-Howell Energy, Ltd, San Antonio, TX
(2) GeoFrontiers Corporation, Rowlett, TX
ABSTRACT: Dare I (Hope) Field and The Rest of the Story--Dare I (Cook) Field, Concho County, Texas
In 1999, we reported on the Dare I (Hope) (Pennsylvanian) field, discovered in May 1996, and located 5 miles south of Eden, Concho County, Texas, at the southern margin on the Eastern shelf of the Midland basin. Since our first report, the Dare I (Hope) field grew from 11 producing wells to 22 producing wells. Significance of a separate geochemical feature in the 1999 data was determined in May 2000 when an adjacent Dare I (Cook) (L. Permian) field was discovered. Fluid analysis of produced oils showed these adjacent reservoirs were compositionally similar, and therefore, shared a common source.
These adjacent, mutually exclusive, complex regressive sandstone systems were developed inexpensively by integrating surface geochemistry and subsurface geology. Through 2003, combined cumulative production of the two fields was more than 1.2 MMBO from 25 producing wells. Estimated ultimate recovery is 3 MMBO.
This geologically complex, multi-pay system successfully employed integrated technologies through the discovery and development of Pennsylvanian and L. Permian, 1600 foot (500 m), stratigraphically trapped sands.
Since its discovery, the Hope Ss has become a prized exploration target. Further integrated exploration efforts yielded more Hope Ss discoveries and opened additional virgin shallow trends within this budget-friendly province.
The inexpensive integrated exploration and exploitation methods reported here can find and develop similar shallow stratigraphic petroleum production, opening up new exploration frontiers, even in previously explored areas.
AAPG Search and Discovery Article #90026©2004 AAPG Annual Meeting, Dallas, Texas, April 18-21, 2004.