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Dilute surfactant flooding for North Sea applications - Technical and economic considerations
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, IOR 1991 - 6th European Symposium on Improved Oil Recovery, May 1991, cp-44-00007
- ISBN: 978-94-6282-133-0
Abstract
The North Sea contains a considerable target for surfactant flooding. A dilute surfactant flooding concept which utilises a low (1%) concentration of active surfactant, applied during waterflooding, was developed in the laboratory and evaluated for fullscale application. The technical evaluation revealed an unacceptably high risk related to lack of detailed understanding of the process mechanisms operating in the reservoir. Economic studies showed that the method developed, if successful, would result in a technical cost per incremental barrel of, some $90 (at 15% discount ratel, and thus is not viable for North Sea applications in the foreseeable future.