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Miscible displacement of crude oil by CO/sub 2//SO/sub 2/ mixtures

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6869590
Slim tube displacement tests on a Pembina Cardium stock-tank oil using carbon dioxide, sulfur dioxide, and four CO/sub 2//SO/sub 2/ mixtures as the flooding agents demonstrated that the mixtures have lower minimum miscibility pressures than both pure components. More oil was recovered from Berea sandstone cores when CO/sub 2/ and a CO/sub 2//SO/sub 2/ mixture were the flooding agents than when SO/sub 2/ was used. CO/sub 2/ and the CO/sub 2//SO/sub 2/ mixture recovered comparable quantities of oil from Indiana limestone, while a severe loss of permeability was observed in the corresponding SO/sub 2/ flood.
Research Organization:
Petroleum Recovery Inst.
OSTI ID:
6869590
Report Number(s):
CONF-8304162-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE/DOE 12707
Country of Publication:
United States
Language:
English