Continuous flexible reinforced adhesion-type composite tube

Abstract

The invention relates to a composite tube used for an oil field, in particular to a continuous flexible reinforced adhesion-type composite tube. The composite tube comprises a lining layer, an anti-permeation layer, a compression-resistive reinforced layer, a tensile reinforced layer and an outer protective bush layer. The composite tube is characterized in that the anti-permeation layer, the compression-resistive reinforced layer, the tensile reinforced layer and the outer protective bush layer are sequentially arranged on the outer surface of the lining layer; a power line and a control module are arranged on the outer surface of the tensile reinforced layer. The composite tube has the advantages that the adhesion-type structure is good in integrality, the anti-permeation capacity is high, and ring stiffness and an axial tensile property are good; the composite tube can bear high pressure and is small in deformation caused by pressing, allows local heating, further has quite high functions of information collecting and monitoring alarming, and is convenient to use, suitable for delivering water, natural gas, petroleum oil and others from a long distance and particularly suitable for deeply passing through roads, villages and other working conditions that the composite tube can not be laid through ditching at a long distance.

Description

technical field [0001] The invention relates to a composite pipe used in oil fields, in particular to a continuous flexible reinforced adhesive composite pipe. Background technique [0002] At present, the flexible composite pipes used in various oil fields are mainly reinforced with steel wire and polyester, and are used for oil transportation, gas transportation, water injection, and alcohol injection in oil fields. Compared with steel pipelines, their advantages are convenient installation, low labor intensity, less auxiliary equipment for installation, corrosion resistance, etc. , The steel wire reinforced composite pipe has a low operating pressure. Although the polyester reinforced composite pipe can withstand high pressure in a certain caliber, it has a large deformation under pressure, and the ring rigidity is poor, so it cannot be detected and heated. All of the above are non-adhesive structures with poor integrity and poor resistance to external pressure and negati...

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Problems solved by technology

[0002] At present, the flexible composite pipes used in various oil fields are mainly reinforced with steel wire and polyester, and are used for oil transportation, gas transportation, water injection, and alcohol injection in oil fields. Compared with steel pipelines, their advantages are convenient installation, low labor intensity, less auxiliary equipment for installation, corrosion resistance, etc. , the steel wire reinforced composite pipe has a low working pressure. Although the polyester reinforced composite pipe can withstand high pressure in a certain caliber, it has a large compression deformation and poor ring rigidity, so it cannot be detected and heated.

All of the above are non-adhesive structures with poor integrity and poor resistance to external pressure and negative pressure

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