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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 67 (1983)

Issue: 9. (September)

First Page: 1470

Last Page: 1470

Title: Miocene Production in Southwest Alabama: ABSTRACT

Author(s): Sam L. Pfiester

Article Type: Meeting abstract


The first commercial Miocene production in Alabama was discovered in early 1979 by Amoco Production Co^nldr The 2 Roy Amos 32-12 was completed through 13 3/8 in. casing at 1,664 ft (507 m) flowing 950 MCFGD on a 20/64-in. choke with 380 lb FTP. Since then 10 additional Miocene fields have been discovered from two different Miocene sands, the Amos and the Meyer. Completed well costs are approximately $150,000. Flow rates are usually in excess of 1 MMCFGD. Porosities range from 25 to 38%. Permeabilities range from a few millidarcys to > 2,500 md. Average reserves are in excess of 1 bcf/well. The depositional environment is postulated to be a flood-plain point-bar system. Shale compaction forms most of the structural relief. After perforating, the wells are gravel packed sing 40/60 sand. Most wells exhibit natural flow rates in excess of 1 MMCFGD (28,000 m3/day). The primary method of exploration is through stratigraphic interpretation of seismic. The productive gas sands appear on seismic data as an amplitude anomaly or "bright spot."

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Copyright 1997 American Association of Petroleum Geologists