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Integrated technology of injection-plugging-profile control in Haiwaihe Oilfield

Zhang Qing-chang

Abstract

The technology of integrated injection - plugging - profile control has been proposed for Haiwaihe Oil- field in accordance with the problems occurred during water flooding.With well group as flooding unit,the tech- niques of fracturing and block removing,stratified waterflooding,in- depth profile control,and chemical water plugging for oil and water wells are integrated and optimized to improve recovery factor.Field application has seen good result,daily oil production has sustained over 1 000 t/d for 3 years,thus realizing efficient develop- ment of the oilfield.

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Key concepts: Petroleum engineering, Water injection (oil production), Water flooding, Oil field, Injection well, Oil production, Water cut, Flooding (psychology)