--> Abstract: Newly Defined Plio-Pleistocene Plays, Northern Gulf of Mexico: Field Characteristics and Production Statistics, by T. F. Hentz, B. J. Bascle, L. D. Nixon, R. H. Peterson, and C. J. John; #90932 (1998).

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Abstract: Newly Defined Plio-Pleistocene Plays, Northern Gulf of Mexico: Field Characteristics and Production Statistics

HENTZ, TUCKER F.
Bureau of Economic Geology, The University of Texas at Austin, Austin, TX;
BARBARA J. BASCLE, LESLEY D. NIXON, and ROBERT H. PETERSON
Minerals Management Service, New Orleans, LA;
CHACKO J. JOHN
Basin Research Institute, Louisiana State University, Baton Rouge, LA

Geologic and engineering data for 5,622 sandstone-body reservoirs in 567 PIioPleistocene fields in the northern Gulf of Mexico (GOM) have been synthesized into a play framework based primarily on depositional style and geologic age. Definition of 19 Plio-Pleistocene plays comprising 5 chronozones and 4 depositional styles allows comprehensive compilation and comparison of production and reserves statistics among chronozones and depositional styles in the northern GOM. Production and reserves data are derived from the annually compiled records of the Minerals Management Service and the Louisiana Office of Conservation.

Through 1994, Federal OCS Plio-Pleistocene reservoirs produced 63.439 Tcf of gas (98.8%) and 6.016 Bbbl of oil and condensate (97.0%), as compared with 796.470 Bcf of gas (1.2%) and 182.890 MMbbI of oil and condensate (3.0%) from fields in Louisiana Offshore State waters. Plio- Pleistocene reservoirs in Federal OCS fields have total remaining proved reserves of 15.412 Tcf of gas and 1.713 Bbbl of liquids. Remaining-proved -reserves data are unavailable for reservoirs in Louisiana Offshore State waters. Pleistocene reservoirs account for ~72% of total gas production and ~53% of total liquid production. Nearly 72% of remaining proved gas reserves and ~62 % of remaining proved liquid reserves reside in Pleistocene strata. PIio- Pleistocene gas and liquid reservoirs produce predominantly from progradational facies (72.0% and 62.8%, respectively). Among the top five PIio- Pleistocene plays in terms of total original proved reserves, four are progradational and one (ranked second) is submarine fan.

AAPG Search and Discovery Article #90932©1998 GCAGS/GCS-SEPM Meeting, Corpus Christi, Texas