Hydrocarbon distribution in Tertiary sandstones as a function of formation pressure and temperature
- Texaco USA, New Orleans, LA (USA)
- Atlas Wireline Services, Houston, TX (USA)
Hydrocarbon distribution is related to formation pressure and temperature, with the highest concentrations of all hydrocarbons encountered near the onset of abnormal pressure regimes. A thorough understanding of the interactive relationship between lithology, pressure, temperature, and hydrocarbon distribution is essential for the efficient exploration and development of oil and gas accumulations. All information, such as lithology, pore pressure, and temperature, can be obtained from geophysical well logs. The primary purpose of this presentation is to discuss distribution and redistribution of hydrocarbons in Tertiary sandstones of southern Louisiana with respect to the depth pressure, and temperature at which these oil and gas accumulations are predominantly encountered. Also discussed are the thermodynamics of ascending fluid movement and the sourcing of these hydrocarbons. Production data from approximately 33,000 well completions and pressure/temperature data from over 20,000 wells provide the database used in this analysis. In addition, similar findings are presented for clastic overpressured reservoirs in the Baram Delta, located offshore in Sarawak Malaysia and the hydrocarbon resources being developed in the West Turkmen depression of the Soviet Union.
- OSTI ID:
- 6677255
- Report Number(s):
- CONF-900605-; CODEN: AABUD
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (USA), Vol. 74:5; Conference: Annual convention and exposition of the American Association of Petroleum Geologists, San Francisco, CA (USA), 3-6 Jun 1990; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
NATURAL GAS DEPOSITS
RESERVOIR ROCK
PETROLEUM DEPOSITS
TERTIARY PERIOD
SANDSTONES
LITHOLOGY
LOUISIANA
PRESSURE EFFECTS
PRODUCTION
RESERVOIR PRESSURE
TEMPERATURE EFFECTS
USSR
ASIA
CENOZOIC ERA
EASTERN EUROPE
EUROPE
FEDERAL REGION VI
GEOLOGIC AGES
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NORTH AMERICA
RESOURCES
ROCKS
SEDIMENTARY ROCKS
USA
020200* - Petroleum- Reserves
Geology
& Exploration
580000 - Geosciences