Role of pressure, temperature, salinity, lithology, and structure in hydrocarbon accumulation in Constance Bayou, Deep Lake, and southeast Little Pecan Lake Fields, Cameron Parish, Louisiana

Conference · Tue Jan 01 00:00:00 EST 1980 · Trans., Gulf Coast Assoc. Geol. Soc.; (United States)

OSTI ID:6426170

Harrison, III, F W

Pressure, temperature, salinity, lithology, and structural studies indicate that hydrocarbons in Deep Lake, Constance Bayou, and Little Pecan Lake Fields, were generated in the shale beds of the hard geopressured zone and migrated upward along major growth faults. The hydrocarbons were originally dissolved in hot fresh pore water and came out of solution in the overlying low temperature and pressure zones, accumulating in the sand beds of the first structural traps encountered. By examining regional cross sections and anomaly maps, fluid escape routes taken by the hot pore water containing dissolved hydrocarbons can be identified. Areas below which a vertical flush of hot fresh pore water from the hard geopressured zone has occurred have 3 identifying characteristics: low fluid pressures, high formation water salinity values, and presence of residual high pressure areas. These areas are considered to be highly prospective places to search for hydrocarbon accumulations.

• OSTI ID: 6426170
• Journal Information: Trans., Gulf Coast Assoc. Geol. Soc.; (United States), Vol. 30; Conference: 30. annual Gulf Coast Association Geological Society et al meeting, Lafayette, LA, 15-17 Oct 1980
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
GULF COAST
STRATIGRAPHY
LOUISIANA
NATURAL GAS FIELDS
PETROLEUM DEPOSITS
DEPTH
GEOLOGIC STRUCTURES
GEOPRESSURED SYSTEMS
GROUND WATER
HYDROCARBONS
SALINITY
SANDSTONES
SOLUBILITY
WELL LOGGING
DIMENSIONS
ENERGY SYSTEMS
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOLOGY
HYDROGEN COMPOUNDS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RESOURCES
ROCKS
SEDIMENTARY ROCKS
USA
WATER
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration