Monitoring and control program for a large scale miscible flood
A hydrocarbon miscible flood project was started in the South Swan Hills field, Alberta, Canada, in July, 1973. In this operation rich hydrocarbon gas (solvent) is injected alternately with water into 22 injection wells. The flood is expected to recover 116 MM barrels of additional oil over that recoverable by waterflooding. A comprehensive monitoring and control program was installed for this project to permit efficient operation and evaluation. The program includes on-line chromatographic analysis of alternate NGL and gas supply streams and computerized calculation and adjustment of enrichment levels. The injection wells are automated to provide central metering and rate control capabilities. A variety of tracers were injected with both the solvent and water phases to permit tracking of the interwell movement of the flood banks within a reservoir and a detailed sampling and analysis program has been instituted to monitor trace levels. Pressure survey programs and injectivity and production profiles are also run on the wells on a regular basis to provide additional data to determine flood response.
- OSTI ID:
- 7223732
- Report Number(s):
- CONF-761008-48
- Country of Publication:
- United States
- Language:
- English
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