Getty Oil reports fireflood pilot is successful project
Getty Oil Co. engineers have concluded that fireflooding combined with water injection will recover up to 50% of the oil in some parts of the Nacatoch reservoir of Bellevue Field, Bossier Parish, La. This conclusion was based on a 4-yr study of a small pilot project on the J.W. Elston lease where the Nacatoch sand is at a depth of 330 ft and is 74 ft thick. The area was selected on the results of a coring program during 1961 by the then Tidewater Oil Co. Core analysis showed the sand section to be separated into 2 major saturation zones by a 4 to 5-ft lime section. The upper zone contained 1,110 bbl of oil per acre-foot and had a high effective permeability to air, while the lower zone contained 1,632 bbl/acre-ft and had a low effective permeability to air. During April and May of 1963, Getty conducted extensive air-injection tests and found that the lime section separating the 2 saturation zones was not a barrier to vertical fluid flow and the total 74 ft of net sand would have to be considered as a single reservoir when carrying out in-situ combustion operations. Realizing that thermal operations might only affect the upper sand section, Getty started an in-situ combustion operation on a 1-1/4 - acre inverted 5-spot pattern in Sept. 1963.
- Research Organization:
- Getty Oil Co.
- OSTI ID:
- 6089935
- Journal Information:
- Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 66:7; ISSN OIGJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
CHEMICAL REACTIONS
COMBUSTION
ENGINEERING
ENHANCED RECOVERY
FLUID INJECTION
IN-SITU COMBUSTION
IN-SITU PROCESSING
LOUISIANA
NORTH AMERICA
OIL WELLS
OXIDATION
PROCESSING
RECOVERY
RESERVOIR ENGINEERING
SOUTHWEST REGION
THERMAL RECOVERY
THERMOCHEMICAL PROCESSES
USA
WELLS