Abstract
Profile modification is a process in which flooding water is diverted from highly permeable zones into less permeable oil-bearing layers within a subterranean reservoir. In recent years this has been achieved by the use of polymeric hydrogels in yhich the water-soluble polymer is cross-linked by a multivalent metal ion1. The latter may be generated in situ from a redox couple, e.g., sodium dichromate/sodium metabisulfite or as a complexed reagent, e.g., aluminum citrate. This enables the gelation process to be retarded until the aqueous polymer solution has been placed deep into the thief zone.
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© 1988 Springer Science+Business Media New York
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Ryles, R.G., Neff, R.E. (1988). Thermally Stable Acrylic Polymer for Profile Modification Applications. In: Stahl, G.A., Schulz, D.N. (eds) Water-Soluble Polymers for Petroleum Recovery. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1985-7_8
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DOI: https://doi.org/10.1007/978-1-4757-1985-7_8
Publisher Name: Springer, Boston, MA
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