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为了提高水质和解决二次采油时由细菌和硫化物引起的注水问题,向油田水中加入丙烯醛是一种很好的处理方法。这种方法的关键是:丙烯醛是一种强力杀菌剂,它能清除H2S、分解FeS。在油田现场试验中,水质提高了9倍,注水量增加了16%。在阿曼石油开发公司日产水9000m3的油田,按照分批注入丙烯醛进行了9周的现场试验。试验结果表明系统中不含油的悬浮固体有连续下降的趋势。浮游的硫酸盐细菌减少了约90%,浮游有氧细菌减少了约72%。溶解的H2S浓度降低了约50%。由此可知丙烯醛对水质的影响是十分显著的。在Barkman和Davidson测试中水质提高了9倍。在试验期间,每天平均注水量从9019m3增至10442m3,增长了16%。这些成效为注水系统管理提供了借鉴。
In order to improve water quality and to solve the problem of water injection caused by bacteria and sulfide during secondary recovery, adding acrolein to the oilfield water is a good treatment. The key to this method is that acrolein is a potent bactericide that clears H2S and breaks down FeS. In the field test in the field, water quality increased 9 times and water injection increased 16%. In Oman Oilfield 9,000 m 3 / day of oilfields, a 9-week field trial was conducted in batches of acrolein. The experimental results show that the system does not contain oil suspended solids have a continuous decline in the trend. The planktonic sulfate bacteria is reduced by about 90% and the planktonic aerobic bacteria is reduced by about 72%. The dissolved H2S concentration is reduced by about 50%. This shows that the impact of acrolein on water quality is very significant. Water quality improved 9 times in the Barkman and Davidson tests. During the test, the average daily water injection increased from 9019m3 to 10442m3, an increase of 16%. These results provide reference for water system management.