Wastewater treatment plant for the preparation of industrial water for waterflooding of oil reservoirs using pressure hydrocyclones

Abstract

Abstract To increase the oil recovery of productive oil-bearing reservoirs, the method of increasing reservoir pressure is used. It consists of pumping process water into the oil-bearing horizons. To increase the long-term intake capacity of injection wells, this water is purified from the suspended substances. This article presents treatment facilities for the preparation of industrial water, including the use of pressure hydrocyclones and various hydrocyclone installations for its treatment. The paper presents the results of the research on water purification from suspension in pressure cylinders of Kazan State University of Architecture and Engineering. The settling time for water purification from suspended substances, which was pre-treated in pressure hydrocyclones, was determined. The results obtained allow us to design treatment facilities with devices of the «block hydrocyclone-sump» type, in which the reagent-free preparation of technical water used for flooding productive horizons is carried out. Studies of water purification processes from suspension in hydrocyclone installations are of high scientific and practical significance for the oil fields of Russia.