North Burbank Unit commercial scale polymer flood project--Osage County, Oklahoma
The North Burbank Unit commercial scale polymer flood project began in September, 1980, with the injection of fresh water preflush within a 1440 acre polymer flood project area. Since that time polymer solution at 500 ppm concentration, interrupted by aluminum citrate, and polymer solutions of 250 and 50 ppm concentration have been injected. The total polymer to be injected is 4,001,000 pounds of a liquid emulsion polyacrylamide. This paper deals with operational problems encountered during the project and the response of the project wells to polymer injection. The discussion of operational problems includes shear degradation of the polymer solution, disposal of produced brine, biocide effectiveness, and near wellbore treatments to adjust injection rates into individual injection wells. The response of the project producing wells includes fresh water breakthrough, polymer production, and oil production response to polymer flooding. The discussion of the response of the project injection wells includes injection rate and wellhead pressure histories, and analysis of pressure falloff tests before and during polymer injection. The project area has responded positively to polymer injection with the production rate from the project area currently averaging 951 barrels of oil per day compared with a pre-project rate of 510 BOPD. The producing water-oil ratio has correspondingly declined from a pre-project water-oil ratio of over 100 to a current ratio of less than 50. The interior pattern wells have shown the best response to polymer flooding with the wells on the outside of the project area showing very little response to polymer injection.
- Research Organization:
- Philips Petroleum Co.
- OSTI ID:
- 5631734
- Report Number(s):
- CONF-830236-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE 11560; Conference: Production operations symposium of the Oklahoma City section of the Society of Petroleum Engineers of AIME, Oklahoma City, OK, USA, 27 Feb 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OIL WELLS
MICROEMULSION FLOODING
WATERFLOODING
OKLAHOMA
ACRYLAMIDE
ALUMINIUM COMPOUNDS
CHEMICAL COMPOSITION
CITRATES
ENHANCED RECOVERY
FLOW RATE
FLUID FLOW
INJECTION WELLS
POLYMERS
PRESSURE DEPENDENCE
SOLUTIONS
WELL PRESSURE
WELL STIMULATION
WELLHEADS
AMIDES
CARBOXYLIC ACID SALTS
DISPERSIONS
FEDERAL REGION VI
FLUID INJECTION
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
NORTH AMERICA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
RECOVERY
RESERVOIR PRESSURE
STIMULATION
USA
WELLS
020300* - Petroleum- Drilling & Production