Activity in the Fayetteville Shale Gas play on the northern Arkansas side of the Arkoma Basin is gaining momentum and is now rated as the second largest shale gas play in the USA. The Fayetteville prospect is attractive because the thickest part (up to 200ft) of the Mississippian reservoir is encountered at relatively shallow depths (less than 7,000ft). It is also appealing because of its large areal extent estimated at approximately 9,000 square miles. Recently, the operator completed several high-flowing gas producers in White County that highlight the prolific nature of the shale deposit.
This report contains results of organic carbon analyses performed by Rinehart Laboratories, Inc., Arvada, Colorado, under contract to the U.S. Geological Survey. The analytical method employs chemical (chromic acid) oxidation of an acid solution containing the rock residue. The detailed analytical specifications are contained in the Rinehart proposal in response to request for proposal 76-79 issued by the U.S. Geological Survey.The samples analyzed were collected by John W. Hosterman, U.S. Geological Survey, Reston, Virginia, who determined the colors (Munsell system) and has performed clay mineralogical analyses on splits of these same samples.In the following tabulation, samples are listed by the depth interval (in feet), and stratigraphic unit from which the drill cuttings were collected.Organic carbon values are single determinations. Each well is identified by county, well name, and API number. These analyses were performed as a part of the U.S. Geological Survey Eastern Black Shales Program, which is being pursued in cooperation with the U.S. Department of. Energy under the Eastern Gas Shales Project.
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