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公开(公告)号：US10287201B2
公开(公告)日：2019-05-14
申请号：US14844221
申请日：2015-09-03
申请人： Chevron U.S.A. Inc.
IPC分类号： C02F9/00 , C02F1/44 , C02F5/06 , E21B43/40 , B01D61/58 , B01D1/20 , C02F101/16 , C02F101/10 , C02F1/66 , C02F1/00 , C02F5/00 , C02F1/42 , C02F103/10 , B01D61/02 , B01D61/04 , C02F1/20 , C02F1/24 , C02F1/52 , C02F5/08 , C02F101/32 , C02F103/36 , C02F5/02 , B01D61/14
摘要： Produced water from a crude oil or natural gas production process is purified using a membrane purification system for petroleum production, agricultural, commercial and domestic uses. The produced water is pretreated to remove, at least, particulates and oil from the produced water. The minimally pretreated water is then purified in a membrane purification system, that is operated at conditions such that membrane scaling is reduced or prevented. In particular, the membrane purification system is operated to maintain the turbidity of clarified water feed to the system or intermediate aqueous streams that are cascading through the membrane purification system. Ensuring that the turbidity of the reject streams generated in the membrane system are useful in achieving long membrane operating life.
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2.发明申请METHOD FOR IMPROVING THE PERCENT RECOVERY AND WATER QUALITY IN HIGH TOTAL HARDNESS WATER 审中-公开改善高硬度水中百分之二的恢复和水质的方法公开(公告)号：US20150360988A1
公开(公告)日：2015-12-17
申请号：US14837368
申请日：2015-08-27
申请人： Chevron U.S.A. Inc.
CPC分类号： C02F9/00 , B01D61/025 , B01D61/04 , B01D2311/25 , B01D2311/268 , B01D2317/025 , C02F1/001 , C02F1/20 , C02F1/24 , C02F1/42 , C02F1/441 , C02F1/52 , C02F1/66 , C02F5/02 , C02F5/06 , C02F5/083 , C02F2001/007 , C02F2001/425 , C02F2101/32 , C02F2103/365 , C02F2209/06 , C02F2209/11 , C02F2303/22 , E21B43/16 , E21B43/40
摘要： A method is disclosed for improving the percent recovery and water quality in water with high levels of hardness. Embodiments of the method include receiving a produced water composition, partially softening the water composition, and directing the partially softened water composition through at least one reverse osmosis unit. The method may be used to purify and clarify produced water from oil and gas operations for use in boilers or once-through steam generators.
摘要翻译： 公开了一种用于提高水中硬度百分比和水质的方法。 该方法的实施方案包括接收生产的水组合物，部分软化水组合物，以及将部分软化的水组合物引导通过至少一个反渗透单元。 该方法可用于净化和澄清用于锅炉或一次通过蒸汽发生器的油气操作中的产生的水。
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公开(公告)号：US20150376033A1
公开(公告)日：2015-12-31
申请号：US14838421
申请日：2015-08-28
申请人： Chevron U.S.A. Inc.
CPC分类号： C02F1/44 , B01D61/022 , B01D61/025 , B01D61/04 , B01D61/58 , B01D2311/25 , B01D2311/268 , B01D2317/025 , C02F1/20 , C02F1/24 , C02F1/42 , C02F1/441 , C02F1/442 , C02F1/444 , C02F1/52 , C02F1/5236 , C02F1/5245 , C02F1/66 , C02F5/00 , C02F5/06 , C02F5/083 , C02F9/00 , C02F11/14 , C02F2001/007 , C02F2001/425 , C02F2101/32 , C02F2103/10 , C02F2103/365 , C02F2209/06 , C02F2209/11 , C02F2303/22 , E21B43/40
摘要： Produced water from a crude oil or natural gas production process is purified using a membrane purification system for petroleum production, agricultural, commercial and domestic uses. The produced water is pretreated to remove, at least, particulates and oil from the produced water. The minimally pretreated water is then purified in a membrane purification system that is operated at conditions such that membrane scaling is reduced or prevented. In particular, the membrane purification system is operated to maintain the turbidity of clarified water feed to the system or intermediate aqueous streams that are cascading through the membrane purification system. Ensuring that the turbidity of the reject streams generated in the membrane system are useful in achieving long membrane operating life.
摘要翻译： 原油或天然气生产过程中生产的水由石油生产，农业，商业和家用用膜净化系统进行纯化。 生产的水经预处理，至少从生产的水中除去颗粒物和油。 然后将微量预处理的水在膜净化系统中纯化，所述膜纯化系统在使得降低或防止膜结垢的条件下操作。 特别地，操作膜净化系统以保持澄清的水进料的浊度到通过膜净化系统级联的系统或中间含水物流。 确保在膜系统中产生的废液流的浊度可用于实现长膜使用寿命。
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