Separator apparatus for separating oil and water

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United States of America Patent

PATENT NO 8778159
SERIAL NO

11662009

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Abstract

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A method of separating oil and water in a flow-stream through a gravity settling vessel (10) in which the flow-stream (12) separates into a lower water layer (22) and an upper oil layer (26), includes feeding an off-take stream (34) of the oil layer and/or an emulsion layer (20) that forms between the oil layer and the water layer through a compact electrostatic coalescer (CEC) (38) that has electrically isolated electrodes. The CEC coalesces water droplets in the off-take stream, and the coalesced off-take stream is then returned to the settling vessel. An associated separator apparatus for comprises: a gravity settling vessel (10); a CEC (38) including electrically isolated electrodes; a coalescer feed line (34) configured to provide an off-take stream of an oil phase and/or an emulsion layer from the settling vessel to the CEC; and a return line (40) from the CEC for returning the off-take stream to the settling vessel.

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Patent Owner(s)

Patent OwnerAddress
NOV PROCESS & FLOW TECHNOLOGIES AS1364 FORNEBU

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davies, Simon Naersnes, NO 33 530
Gulbraar, Arne Myrvang Sofirmyr, NO 3 30
Liverud, Jon Oslo, NO 5 45

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