Device and method for realizing undersea oil pipeline flow damping through vortex-induced vibration

A technology of oil pipeline and vortex-induced vibration, which is applied in circuit devices, transportation and packaging, battery circuit devices, etc., can solve the problems of huge cost of marine heavy oil exploitation and increased work burden, and achieve low cost, low cost and cost saving Effect
CN105546262AInactive Publication Date: 2016-05-04SOUTHWEST PETROLEUM UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Publication Date
2016-05-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device and method for realizing undersea oil pipeline flow damping through vortex-induced vibration. The device is composed of a vibration system, a magnetic field system and an electrogenic heat tracing system. The vibration system is composed of an outer barrel, supporting plates, supporting lantern rings, springs and long bolts and is used for producing vibration responses under the ocean current action. The magnetic field system is composed of magnet clamping grooves and magnets and arranged on the wide supporting plate of the inner wall of the outer barrel and used for constructing a magnetic field. The electrogenic heat tracing system comprises wires, an electrical conductor layer and an inner insulation layer, and an oil pipeline is transformed to be of a six-layer pipeline structure which is composed of a steel pipe, the inner insulation layer, the electrical conductor layer, the wires, a heat preservation layer and an outer insulation layer from inside to outside in sequence. According to the device for realizing undersea oil pipeline flow damping through the vortex-induced vibration, the wires are driven by the vibration to cut magnetic induction lines under the ocean current action, and heat generated by electricity enables the viscosity and the resistance of an oil flow to be reduced, so that the low cost and zero energy consumption are achieved.
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Description

technical field

[0001] The invention belongs to the technical field of submarine pipeline fluid transportation, and in particular relates to a device and method for realizing flow drag reduction of a submarine oil pipeline by utilizing vortex-induced vibration. Background technique

[0002] Due to the high viscosity and high energy consumption of heavy oil, the problem of flow drag reduction has always been a hot topic in the field of pipeline fluid transportation technology. With the continuous deepening of people's research on flow drag reduction, many heavy oil flow drag reduction methods have emerged, including hot water mixing, steam mixing, oil and gas mixed transportation, direct heating, electric heating, hot water heating, steam tracing, etc. Heat, water ring, foam injection, viscosity reducer injection, etc. Most of them have achieved good drag reduction effects in the application of surface oil pipelines, but at the same time, obvious defects have been exposed. ...

Claims

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