Armor pipeline

Abstract

The invention belongs to the technical field of high-pressure rubber pipes, and discloses an armor pipeline which is used in oil exploration and is requested to be capable of being high pressure resistant. The armor pipeline comprises an inner rubber pipe used for conveying high-pressure mediums. A skeleton layer and an outer rubber pipe layer are arranged outside the inner rubber pip, and the skeleton layer is formed by at least one winding or woven steel wire layer and a middle rubber bonding layer coated on the inner wall of the steel wire layer. An outer rubber bonding layer and a steel strip winding layer are sequentially arranged between the outermost winding or woven steel wire layer and the outer rubber pipe layer which form the skeleton layer. The armor pipeline can effectively prevent pointed-shaped objects from penetrating, improves safe and reliable performance of the armor pipeline, meanwhile, effectively overcomes the problem of inward immersing of humidity along the winding steel wire gap, pressure-bearing performance of the pipeline is enabled to be better, and service life of the pipeline is enabled to be longer.

Description

Technical field [0001] The invention belongs to the technical field of high-pressure hoses, and in particular relates to an armored pipeline used in petroleum exploration that requires high-pressure resistance. Background technique [0002] With the development of the petroleum exploration industry, the drilling of petroleum and natural gas is getting deeper and deeper, and the performance requirements of the ultra-high pressure flexible manifold are getting higher and higher. Various types of hoses for preventing blowouts, circulating pipes for drilling mud, and ultra-high pressure oil pipelines, which are widely used at present, all include an inner pipe layer for conveying high-pressure media, several layers of wire-wound braided layers and The middle pressure-bearing skeleton layer composed of the middle rubber adhesive layer and the protective layer composed of the outer rubber layer are composed. Due to structural defects, the high-pressure hose of this structure has the f...

AI Technical Summary

Problems solved by technology

Due to structural defects, the high-pressure hose of this structure has the following defects in use: First, although the outer rubber layer has wear-resistant properties, due to the harsh use environment, its service life is extremely short. Afterwards, the steel wire skeleton layer wound or braided inside will be corroded and damaged soon, resulting in a decrease in the pressure bearing performance of the pipe body and bursting; Objects can easily penetrate through the gaps between the steel wires, resulting in damage to the pipeline; third: the wound steel wire layer at the flange connection at the end of the pipeline is exposed to the outside, and seawater moisture can easily enter through the wound steel wire layer, causing it to be corroded and damaged , greatly shortening its service life

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