학술논문
SACROC tertiary CO/sub 2/ pilot project
Document Type
Conference
Author
Source
Soc. Pet. Eng. AIME, Pap.; (United States); Conference: 5. SPE symposium improving oil recovery, Tulsa, OK, USA, 16 Apr 1978
Subject
Language
English
Abstract
Oil recovery by tertiary CO/sub 2/ flooding was pilot tested in a watered-out area in the SACROC Unit, Scurry County, Texas, during 1974-1975. Most of the SACROC Unit has been under a full scale enhanced recovery project using CO/sub 2/ since 1972 in areas not yet watered out. A 2.3 billion scf slug of CO/sub 2/ was injected into 6 wells in 2 adjacent, 5-spot patterns in a watered-out portion of the reservoir over a period of 9 mo. Residual oil was displaced by the CO/sub 2/--approx. 64,000 STBO (3% of OOIP) was recovered. This work reports on the analysis of the field data including chemical tracer, pulse test, produced flood analyses, and pressure measurements. Performance history was matched with a compositional simulator.