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A survey was made of the types of waters, chemicals, and water treatment methods used in enhanced oil recovery operations. The study indicated that numerous types of waters, chemicals, and water treatment methods are used. Chemical and biochemical reactions can occur when different types of waters are mixed or when enhanced oil recovery chemicals are added. Stringent quality control is needed in all operational phases related to injection waters in order to produce optimum amounts of oil and to prevent irreparable damage to equipment, wells, and oil reservoirs. Additional ASTM standard methods are needed to ensure adequate quality control.
Oil fields, water injection, chemicals, oil recovery, water treatment, quality control
Project leader, Energy Research and Development Administration, Bartlesville, Okla