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1.5 油田水处理用化学品(见表13) 世界各国广泛采用油田注水开发,我国90％的石油是靠注水开发的,采出的油水乳化液经脱水后,净油输往炼厂,污水要经过化学、物理和生物处理,除去其中的微量油、机械杂质等有害物质并达到一定标准后再回注地层,以驱动石油采出。 我国油田每年处理、回注水达10多亿m~3,各种水处理剂年用量为6.33万t,其中净水剂(絮凝剂)和缓蚀剂占总量的84％。国内外各类水处理剂的主
1.5 Oilfield Water Treatment Chemicals (See Table 13) The development of oilfield water injection is widely used in various countries of the world. 90% of China’s oil is developed by water injection. After the dewatered oil-water emulsion, the net oil is sent to the refinery. After chemical, physical, and biological treatments, remove trace amounts of oil, mechanical impurities, and other harmful substances, reach a certain level, and then re-inject the stratum to drive oil recovery. In China’s oilfields, annual treatment and re-injection of water reaches more than 1 billion m 3, and the annual amount of various water treatment agents is 63,300 tons, of which 84% are water purification agents (flocculants) and corrosion inhibitors. Domestic and foreign water treatment agent master