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    • 5. 发明申请
    • LONG TERM DUAL BIOCIDE AND HYDROGEN SULFIDE REMEDIATION
    • 长期双生物和硫化氢补救措施
    • WO2016054730A1
    • 2016-04-14
    • PCT/CA2015/050988
    • 2015-10-01
    • TRICAN WELL SERVICE, LTD.
    • KAKADJIAN, SarkisTHOMPSON, Joseph EarlVENDITTO, Jim
    • C02F9/04C02F1/50C02F1/70
    • C02F1/683C02F1/76C02F2101/101C02F2103/10C02F2303/04
    • In wellbore construction it has become environmentally and economically practical to treat flow back and produced water at the well site. Typically the flow back and produced water is initially contained in an open air pond. The water is then run to a treatment system to remove particulates and then deposited in a second clean pond. The water in the second clean pond may be allowed to sit in the pond for weeks before it is pumped out to be taken and disposed of or most likely to be used as a water source in the construction of a different well. Unfortunately even though the water may have initially been treated with the biocide due to the open environment to water is usually re-contaminated with both nutrients and both aerobic and anaerobic bacteria. The anaerobic bacteria usually include sulfur reducing bacteria which in turn produces hydrogen sulfide dissolved in the water. It has been found that an effective way to treat the clean pond to prevent contamination of the clean pond by sulfur reducing bacteria and its consequent hydrogen sulfide is to initially treat the second pond with a short-term but quick kill biocide as well as with the hydrogen sulfide scavenger that may then act as a long term biocide.
    • 在井筒施工中,在井场处理回流和生产水已成为环境和经济实用的。 通常,回流和产生的水最初包含在露天池中。 然后将水运行到处理系统以除去微粒,然后沉积在第二个清洁池中。 第二个清洁池塘内的水可能被允许在池塘内坐了好几个星期,才被抽出来,被排除掉,或者很可能被用作构建不同井的水源。 不幸的是,尽管由于开放的环境,水可能最初被杀死了,但水通常会被再次污染营养物质和有氧和厌氧菌。 厌氧菌通常包括硫还原细菌,其又产生溶解在水中的硫化氢。 已经发现,治疗清洁池以防止由硫还原细菌及其随后的硫化氢污染清洁池的有效方法是首先用短期但快速杀灭杀生物剂处理第二池塘 硫化氢清除剂,然后可以作为长期的杀生物剂。