Oblique tube type row-column electrode array underwater online electric dehydration unit

A dehydration device, inclined tube technology, applied in the direction of using electricity/magnetic dehydration/demulsification, processing hydrocarbon oil, petroleum industry, etc., can solve the problems of long separation time, complicated process, affecting the gravity sedimentation separation process and separation effect, etc. , to achieve the effect of low water content of crude oil and low oil content of production water
CN106833728AActive Publication Date: 2017-06-13QINGDAO TECHNOLOGICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO TECHNOLOGICAL UNIVERSITY
Publication Date
2017-06-13

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Abstract

The invention provides an oblique tube type row-column electrode array underwater online electric dehydration unit applied to underwater direct electric dehydration of pre-separated crude oil. Vertical-horizontal online separation technique for crude oil and parallel high-voltage electric field dehydration technique for crude oil are combined organically herein; efficient oil-water separation and underwater quick dehydration are achieved according to oblique tube type structure and row-column electrode array; the pre-separated crude oil and an emulsifier are stirred by a flow stabilizer through flow stabilizing rods and a flow stabilizing blade wheel, the formed crude oil emulsion is adjusted into a uniform flow, and the crude oil emulsion is then re-organized into a stable flow through a liquid coming wheel shaft and a liquid incoming wheel; row-column bare electrodes are of row-column electrode array, producing a parallel high-voltage electric field, quick dehydration of crude oil based on row-column parallel high-voltage electric field is carried out in a dehydration separation tube, and residual water phase in the pre-separated crude oil is removed; the qualified crude oil is discharged from an oil discharge pipe; a water discharge pipe discharges low-oil-content produced water according to an anti-vortex wheel and an anti-vortex wheel shaft, while preventing the water from producing vortexes.
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Description

technical field

[0001] The invention relates to a device for underwater direct electric dehydration of crude oil after pre-separation in the field of marine engineering, in particular to an online electric dehydration device for an underwater production system with inclined tube-type row-column electrode arrays. Background technique

[0002] At present, the typical oil and gas processing supporting facilities for domestic and foreign offshore platforms, onshore oil production plants and chemical plants are "oil well production→standpipe→offshore platform manifold→three-phase separator→secondary heater→thermochemical separator→increase Pressure pump → electric dehydrator", in which the crude oil electric dehydration treatment technology mainly adopts a conventional tank-type electric dehydrator, which uses an electric field to demulsify the crude oil, and separates and settles the water particles in the oil. The entire crude oil electric dehydration treatment equipment is bulk...

Claims

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