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Reservoir barrier and polymer waterflood Northeast Hallsville Crane Unit

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5692675
Injection of polymer solution in the NE. Hallsville Crane unit was effectively used to create a viscous barrier between the oil zone and a large associated gas cap. As a result of favorable flood response from oil producers near the barrier, polymer injection was extended throughout the total field. It was found that polymer use did improve waterflood recovery and that higher polymer amounts resulted in higher oil recoveries over the range of polymer treatments used. Substantially better results were achieved in areas where there was no water injection prior to polymer slug injection. On a total field basis, an average polymer treatment of 7.4 lb/acre-ft yielded an estimated ultimate secondary recovery of 70 bbl/acre-ft for an ordinary waterflood. At a cost of $1.25/lb of injected polymer, the average cost of increased oil recovery was $0.33/bbl.
Research Organization:
Hunt Oil Co
OSTI ID:
5692675
Report Number(s):
CONF-690466-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-2423
Country of Publication:
United States
Language:
English