Formation evaluation from conventional well logs in the Gulf Coast area
This study gathers some existing, but often overlooked, techniques of estimating water saturation, residual fluid saturation, anticipated water-cut and primary hydrocarbon reserve from conventional well logs and sidewall core data. Successful applications of these techniques for Pliocene and Miocene sands of the Louisiana Gulf Coast area are presented. Water saturation is obtained by a resistivity-porosity cross plotting technique. The other reservoir properties are estimated from existing correlations utilizing logs, sidewall core data, and local experience. On the basis of these techniques, a practical and systematic formation evaluation scheme is presented for the Gulf Coast area. This approach provides estimates of the basic petrophysical parameters and reservoir properties. Field engineers and geologists can use this procedure for an on-the-rig evaluation of a newly drilled well or a proposed workover completion. This simplified formation evaluation approach is very useful for wells or reservoirs where operational or economic considerations preclude more sophisticated formation evaluations. (18 refs.)
- Research Organization:
- Texaco Inc.
- OSTI ID:
- 6985611
- Report Number(s):
- CONF-7309153-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE-4641; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020100 -- Petroleum-- Reserves-- (-1989)
020300* -- Petroleum-- Drilling & Production
CALCULATION METHODS
CENOZOIC ERA
DRILL CORES
ENHANCED RECOVERY
EVALUATION
FEDERAL REGION VI
FLUIDS
GEOLOGIC AGES
GEOLOGIC FORMATIONS
GEOLOGY
GULF COAST
LOUISIANA
NORTH AMERICA
OIL WELLS
PETROLEUM GEOLOGY
POROSITY
RECOVERY
RESERVOIR FLUIDS
SAND
SATURATION
TERTIARY PERIOD
USA
WATER SATURATION
WELL LOGGING
WELLS