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随着各个油田的开发,原油含水也在不断升高,注入水中SRB菌及TGB菌含量严重超标,在地层中形成硫细菌、抑氧菌,使水质变黑、硫化物及其他杂质增多,造成部分堵塞,还有铁细菌严重超标,产生Fe3+沉淀堵塞等问题,影响注水水质,因此回注污水必须投放杀菌剂进行处理,目前对于冀东油田高-联存在的主要问题是悬浮物超标、水色阶段性变黑、变蓝,硫酸盐还原菌超标等。针对这一问题,我们对各个联合站的污水进行细菌含量的测定,并筛选出有效杀菌剂,保证污水回注及外排达标的目的。
With the development of each oil field, the water content of crude oil is also rising. The content of SRB and TGB in the water is seriously exceeded. Sulfur bacteria and anaerobic bacteria are formed in the formation, causing the water quality to become dark and the sulfide and other impurities to increase. Partial plugging, as well as serious iron bacteria exceeded, resulting in Fe3 + precipitation blockage and other issues, affecting water quality, so the injection of sewage must be put bactericide for processing, at present, Jidong Oilfield - linked to the main problems of excessive suspended matter, water color Phased black, blue, sulfate-reducing bacteria and so on. In response to this problem, we have carried out the determination of the bacterial content of the sewage of each joint station and screened the effective bactericides to ensure the effluent reinjection and efflux standards compliance.