Consolidation of geologic studies of geopressured-geothermal resources in Texas: Barrier-bar tidal-channel reservoir facies architecture, Jackson Group, Prado Field, South Texas
Sandstone reservoirs in the Jackson barrier/strandplain play are characterized by low recovery efficiencies and thus contain a large hydrocarbon resource target potentially amenable to advanced recovery techniques. Prado field, Jim Hogg County, South Texas, has produced over 23 million bbl of oil and over 32 million mcf gas from combination structural-stratigraphic traps in the Eocene lower Jackson Group. Hydrocarbon entrapment at Prado field is a result of anticlinal nosing by differential compaction and updip pinch-out of barrier bar sandstone. Relative base-level lowering resulted in forced regression that established lower Jackson shoreline sandstones in a relatively distal location in central Jim Hogg County. Reservoir sand bodies at Prado field comprise complex assemblages of barrier-bar, tidal-inlet fill, back-barrier bar, and shoreface environments. Subsequent progradation built the barrier-bar system seaward 1 to 2 mi. With the barrier-bar system, favorable targets for hydrocarbon reexploration are concentrated in tidal-inlet facies because they possess the greatest degree of depositional heterogeneity.
- Research Organization:
- Texas Univ., Austin, TX (United States). Bureau of Economic Geology
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC07-85NV10412
- OSTI ID:
- 7271366
- Report Number(s):
- DOE/NV/10412-9; ON: DE94015520
- Country of Publication:
- United States
- Language:
- English
Similar Records
Geothermal and heavy-oil resources in Texas
Reservoir heterogeneity at West 76 field: An opportunity for increased oil recovery by geologically targeted infill drilling
Related Subjects
03 NATURAL GAS
NATURAL GAS DEPOSITS
RESOURCE POTENTIAL
PETROLEUM
THERMAL RECOVERY
PETROLEUM DEPOSITS
TEXAS
EXPERIMENTAL DATA
FEASIBILITY STUDIES
GEOLOGIC MODELS
GEOLOGIC STRUCTURES
GEOLOGIC TRAPS
NATURAL GAS FIELDS
OIL FIELDS
PRODUCTION
PROGRESS REPORT
DATA
DEVELOPED COUNTRIES
DOCUMENT TYPES
ENERGY SOURCES
ENHANCED RECOVERY
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
INFORMATION
MINERAL RESOURCES
NORTH AMERICA
NUMERICAL DATA
RESOURCES
USA
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration
020300 - Petroleum- Drilling & Production