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ECHOLS, JOHN B., and DONALD A. GODDARD, Basin Research Institute, Louisiana State University, Baton Rouge, LA, and ARNOLD BOUMA, Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA

ABSTRACT: Reservoir Characteristics of Two Minter Oil Sands Based on Continuous Core, E-logs, and Geochemical Data: Bee Brake Field, East-Central Louisiana

The Bee Brake field area, located in townships 4N/6E and 4N/7E in Concordia Parish, has been one of the more prolific oil-producing areas in east-central Louisiana. Production decline in various fields, however, has sparked interest in the economic feasibility of locating and producing the remaining bypassed oil in the lower Wilcox. For this purpose, the Angelina BBF #1 well was drilled, and a 500-ft conventional core and a complete suite of state-of-the-art wireline logs were recovered. Production tests were run on the Minter interval of interest.

The 16-ft Minter interval (6742-6758 ft depth), bounded at its top and base by lignite seams, consists of an upper 4-ft oil sand (Bee Brake) and a lower 3-ft oil sand (Angelina). The oil sands are separated by approximately 5 ft of thinly laminated silty shale and 4 ft of very fine-grained silty sandstone.

Detailed sedimentologic and petrographic descriptions of the Minter interval provide accurate facies determinations of this lower delta-plain sequence. Petrophysical evaluation, combining core plug and modern electric-log data show differences between reservoir quality of the Bee Brake and Angelina sands. This data will.also be useful for correlating and interpolating old electric logs. Organic geochemistry of the oil, lignites, and shales provides insight as to the source of the Minter oils and the sourcing potential of the lignites.

AAPG Search and Discovery Article #90989©1993 GCAGS and Gulf Coast SEPM 43rd Annual Meeting, Shreveport, Louisiana, October 20-22, 1993.