TREATMENT OF PRODUCED WATER CONCENTRATE
    21.
    发明申请
    TREATMENT OF PRODUCED WATER CONCENTRATE 审中-公开
    生产水浓缩物的处理

    公开(公告)号:US20150259232A1

    公开(公告)日:2015-09-17

    申请号:US14657492

    申请日:2013-08-15

    Abstract: Water, for example produced water from a steam assisted gravity drainage (SAGD) or cyclic steam stimulation (CSS) heavy oil recovery operation, is treated, for example to recover water re-use in creating steam. The produced water is concentrated, for example in one or more thermal treatment devices such as an evaporator and a crystallizer. A solvent and a compound or solution comprising multivalent cations is added to the concentrate. Solids precipitate and are separated from the concentrate. The solvent may be recovered for re-use in treating more concentrate.

    Abstract translation: 水,例如从蒸汽辅助重力排水(SAGD)或循环蒸汽刺激(CSS)重油回收操作中产生的水被处理,例如用于回收用于产生蒸汽的水。 产生的水被浓缩,例如在一个或多个热处理装置如蒸发器和结晶器中。 向浓缩物中加入溶剂和包含多价阳离子的化合物或溶液。 固体沉淀并与浓缩物分离。 可以回收溶剂以再次用于处理更多的浓缩物。

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