A thermal insulation pipe for oil transportation

A technology for oil transportation and thermal insulation pipes, which is applied in the direction of protecting pipelines, pipes, and rigid pipes through thermal insulation. Thermal performance and anti-corrosion performance, the effect of reducing maintenance costs

Inactive Publication Date: 2016-04-13
WUXI JINDING OIL PIPE FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the injection pipes used in secondary oil recovery and tertiary oil recovery are steel pipes, which are double-layered pipes, which have poor thermal insulation effect, are not corrosion-resistant, and have a short service life.

Method used

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  • A thermal insulation pipe for oil transportation

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Embodiment Construction

[0011] Such as figure 1 As shown, the new oil transportation insulation pipe according to the embodiment of the present invention includes an outer pipe body 1 and an inner pipe body 2, the inner pipe body 2 is arranged at the center of the inner cavity of the outer pipe body 1 and the inner pipe body 2 A layer of anti-corrosion layer 5 is set on the inner surface of the inner pipe body 2. At the same time, a layer of glass wool heat insulation layer 6 structure is set on the outer surface of the inner pipe body 2, and the thickness of the glass wool heat insulation layer 6 is equal to three times the thickness of the inner pipe body 2. The outer tube body 1 is evenly provided with four outer bosses 3 with arcs along the outer wall surface, and each outer boss 3 is wrapped with a layer of aluminum foil reflective layer 4, and every two adjacent outer Grooves 8 are provided between the bosses 3 to facilitate the embedding of lines. In addition, the stainless steel fastening ste...

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PUM

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Abstract

The invention discloses a novel oil delivery insulating pipe comprising an outer pipe and an inner pipe. The inner pipe is disposed in the center of an inner cavity of the outer pipe, while an anticorrosion layer is arranged on the inner surface of the inner pipe and a glass wool insulating layer structure is arranged on the outer surface of the inner pipe. Four cambered outer projections are evenly arranged on the outer wall of the outer pipe, and the outer periphery of each outer protrusion is wrapped with an aluminum foil reflecting layer. The inner pipe and the outer pipe are fixedly connected through stainless steel fastening tapes, and the outer end of each stainless steel fastening tape is fixed on the inner wall of the outer pipe. The novel oil delivery insulating pipe has the advantages that insulating performance and corrosion resistance of the inner pipe can be ensured; the aluminum foil reflecting layer in a projection form is arranged on the outer side of the outer pipe, the service life of the outer pipe can be prolonged, and maintenance cost is reduced greatly.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to a thermal insulation pipe for petroleum transportation. Background technique [0002] At present, pipe fittings used in petroleum, chemical industry, electric power, shipbuilding, metallurgy, machinery, textile, food, construction, pharmaceutical and other industries need to have high strength, pressure resistance, corrosion resistance and high temperature resistance. Therefore, in petroleum In the field of mining technology, in order to improve the recovery rate of oilfield crude oil, secondary oil recovery and tertiary oil recovery are usually carried out. Secondary oil recovery is to recover oil by supplementing formation pressure with water injection; tertiary oil recovery is through gas injection, chemical injection, microbial injection Due to the high viscosity of the underground heavy oil, in order to make it have good fluidity, the temperature of the liquid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/18F16L58/02F16L59/05F16L59/08
Inventor 沈金章
Owner WUXI JINDING OIL PIPE FITTINGS
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