High flux electrostatic separator for subsea applications

    公开(公告)号:US10207202B2

    公开(公告)日:2019-02-19

    申请号:US14959809

    申请日:2015-12-04

    Abstract: An apparatus and method for separating water from an oil-water influx are provided. The apparatus includes a separation vessel having an inlet, an oil collection portion at its upper end, and a water collection portion at its lower end. Multiple high voltage tubes, each containing an electrode, are located within the oil collection portion. These high voltage tubes are staggered in length and held in place by perforated plates. The oil-water influx flows through the inlet of the vessel into the high voltage tubes, where it is subjected to an electrostatic field. The electrostatic field causes water droplets in the influx to coalesce and form a water out-flux which flows downwardly into the water collection portion of the vessel. The remaining stream of dehydrated oil flows upwardly to the upper outlet end. The oil collection portion of the separation vessel may be oriented vertically or at an angle.

    Petroleum Desalting Utilizing Voltage Modulation
    8.
    发明申请
    Petroleum Desalting Utilizing Voltage Modulation 审中-公开
    石油脱盐利用电压调制

    公开(公告)号:US20160008823A1

    公开(公告)日:2016-01-14

    申请号:US14862400

    申请日:2015-09-23

    CPC classification number: B03C11/00 B01D17/045 B01D17/06 B03C2201/02 C02F1/463

    Abstract: A method of removing entrained salt containing water from an inlet crude oil stream includes the steps of applying an electrical energy to at least one electrode of a plurality of horizontally oriented, spaced-apart electrodes (12, 14, 16) housed within an elongated desalting vessel (10) and distributing an inlet crude oil stream between the electrodes. Each electrode in the plurality of electrodes is housed in an upper portion of the desalting vessel and may be in communication with a first, second and third transformer (42, 44, 46), respectively. The electrical energy may be at a single frequency and voltage or at a modulated voltage. Or, the electrical energy may be a modulated frequency at a single or modulated voltage. Fresh water may be mixed with the inlet crude oil stream either exteriorly or interiorly of the vessel.

    Abstract translation: 从入口原油流中除去夹带盐的水的方法包括以下步骤:将电能施加到容纳在细长的脱盐过程中的多个水平取向的间隔开的电极(12,14,16)的至少一个电极 容器(10)并且在电极之间分配入口原油流。 多个电极中的每个电极容纳在脱盐容器的上部,并且可以分别与第一,第二和第三变压器(42,44,46)连通。 电能可以处于单个频率和电压或调制电压。 或者,电能可以是单个或调制电压下的调制频率。 淡水可能与容器外部或内部的入口原油流混合。

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