CN217130581U

CN217130581U - Special ultrahigh-pressure flexible pipeline for oil field fracturing

Info

Publication number: CN217130581U
Application number: CN202220962314.XU
Authority: CN
Inventors: 刘庆; 刘东生; 高健; 韩宪彪
Original assignee: Hebei Qinglin Rubber And Plastic Products Co ltd
Current assignee: Hebei Qinglin Rubber And Plastic Products Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-05
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses an oil field fracturing is with flexible pipeline of special type superhigh pressure, including the flexible glue pipe, the outer fixedly connected with internal fiber layer of flexible glue pipe, the internal fiber layer material is ultra high molecular weight polyethylene, the outer fixedly connected with antiseep layer of internal fiber layer, antiseep layer material is polyvinyl chloride, the outer fixedly connected with middle part wearing layer in soft spring layer, the outer fixedly connected with outside fibrous layer in middle part wearing layer, the outer fixedly connected with outside wearing layer in outside fibrous layer. The utility model discloses in, this product is by combined material, and the multilayer material stack forms because this product has set up inside fibrous layer and multilayer resistance to compression layer and is enough to deal with the inside and outside pressure of pipeline, at high strength, output still can be stabilized under the high pressure environment, and the pipeline is inside has still set up the antiseep layer, has avoided because of leading to the fact the seepage for sharp-pointed article fish tail in the hose, leads to the fact the emergence of corrosion to inside metal.

Description

Special ultrahigh-pressure flexible pipeline for oil field fracturing

Technical Field

The utility model relates to a flexible pipe field especially relates to a special type superhigh pressure flexible line is used to oil field fracturing.

Background

Flexible pipe for transporting production fluids (oil, gas, water) from one location to another, the flexible pipe being generally formed as one assembly of a pipe body and one or more end fittings, the pipe body being generally formed as a composite of layered materials forming a pressure-containing conduit, the pipe body being generally built up as a composite structure comprising metal and polymer layers, the pipe body structure being formed to allow substantial deflection without bending strains that impair the function of the pipe body during its lifetime.

Severe environmental conditions exist at such high pressures and depths deep in the oil field, including not only high pressures and strong geological movements, but also man-made conditions such as collisions with passing vehicles and the like, and the pipelines cannot be maintained smoothly due to the high pressure, and the pipelines are broken due to the depth, or friction, extending too long.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a special ultrahigh pressure flexible pipeline for oil field fracturing.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a special ultrahigh-pressure flexible pipeline for oilfield fracturing comprises a flexible rubber pipe, wherein an inner fiber layer is fixedly connected to the outer layer of the flexible rubber pipe, the inner fiber layer is made of ultrahigh-molecular-weight polyethylene fibers, an anti-leakage layer is fixedly connected to the outer layer of the inner fiber layer, the anti-leakage layer is made of polyvinyl chloride, an inner nylon gauze is fixedly connected to the outer layer of the anti-leakage layer, an inner wear-resistant layer is fixedly connected to the outer layer of the inner nylon gauze, the inner wear-resistant layer is made of wear-resistant rubber, a filling soft rubber is fixedly connected to the outer layer of the inner wear-resistant layer, the filling soft rubber is made of nitrile rubber, an auxiliary compression layer is fixedly connected to the outer layer of the filling soft rubber, an outer nylon gauze is fixedly connected to the outer layer of the outer nylon gauze, a main compression layer is made of chlorinated polyethylene rubber, the outer layer fixedly connected with steel wire layer of main resistance to compression layer, the outer outside resistance to compression layer of steel wire layer fixedly connected with, the outer fixedly connected with soft spring layer of outside resistance to compression layer, the outer fixedly connected with middle part wearing layer in soft spring layer, the outer fixedly connected with outside fibrous layer of middle part wearing layer, the outer fixedly connected with outside wearing layer of outside fibrous layer.

As a further description of the above technical solution:

the interior of the filling soft rubber is uniformly distributed and provided with anti-pulling cables.

As a further description of the above technical solution:

the auxiliary compression-resistant layer is made of chlorinated polyethylene rubber.

As a further description of the above technical solution:

the steel wire layers are wound in two staggered forms.

As a further description of the above technical solution:

the soft spring layer is arranged in an M shape.

As a further description of the above technical solution:

the outer fiber layer is made of glass fiber cloth.

As a further description of the above technical solution:

the outer wear-resistant layer is made of polyester fibers.

1. The utility model discloses following beneficial effect has: this product is by combined material, and the multilayer material stack forms, and the fracturing in-process is by in the high-speed injection well of ground high-pressure pump truck group with fluid, with the help of the high pressure that the shaft bottom was suppressed, makes the oil reservoir rock fracture production crack, so the pipeline bears high pressure, high impact force, because this product has set up inside fibrous layer and multilayer resistance to compression layer and is enough to deal with the inside and outside pressure of pipeline, at high strength, can still stabilize output under the high pressure environment.

2. The utility model discloses in, still set up the multilayer wearing layer, avoid because outside friction, cause the pipeline damage to break, because the pipeline is mostly fibre and rubber, toughness has still been increased when having increased toughness, the protection pipeline is not torn by the pulling force when the tensile cable of establishing produces huge pulling force in the pipeline, the steel wire layer has been avoided the pipeline more with soft spring layer by pressure extrusion deformation, lead to damaging, the pipeline is inside has still set up the antiseep layer, avoided because the hose in cause the seepage for sharp-pointed object fish tail, cause the emergence of corrosion to inside metal.

Drawings

Fig. 1 is a cross-sectional view of a special ultrahigh pressure flexible pipeline for oil field fracturing provided by the utility model;

fig. 2 is a winding diagram of a special ultrahigh pressure flexible pipeline for oil field fracturing provided by the utility model;

fig. 3 is the utility model provides a smooth packing flexible glue section view of special type superhigh pressure flexible pipeline for oil field fracturing.

Illustration of the drawings:

1. a soft rubber tube; 2. an inner fibrous layer; 3. preventing leakage; 4. nylon gauze inside; 5. an inner wear layer; 6. filling soft rubber; 7. an anti-pulling cable; 8. a secondary compression layer; 9. external nylon gauze; 10. a primary compression layer; 11. a steel wire layer; 12. an outer compression resistant layer; 13. a soft spring layer; 14. a middle wear-resistant layer; 15. an outer fibrous layer; 16. an outer wear layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a special ultrahigh pressure flexible pipeline for oilfield fracturing comprises a flexible rubber pipe 1, wherein the outer layer of the flexible rubber pipe 1 is fixedly connected with an inner fiber layer 2, the material of the inner fiber layer 2 is ultrahigh molecular weight polyethylene fiber, the outer layer of the inner fiber layer 2 is fixedly connected with an anti-seepage layer 3, the material of the anti-seepage layer 3 is polyvinyl chloride, the outer layer of the anti-seepage layer 3 is fixedly connected with an inner nylon gauze 4, the outer layer of the inner nylon gauze 4 is fixedly connected with an inner wear-resistant layer 5, the material of the inner wear-resistant layer 5 is wear-resistant rubber, the outer layer of the inner wear-resistant layer 5 is fixedly connected with a filling soft rubber 6, the material of the filling soft rubber 6 is nitrile rubber, the outer layer of the filling soft rubber 6 is fixedly connected with an auxiliary anti-pressure layer 8, the outer layer of the auxiliary anti-pressure layer 8 is fixedly connected with an outer nylon gauze 9, the outer layer of the outer nylon gauze 9 is fixedly connected with a main anti-pressure layer 10, the material of the main anti-pressure layer 10 is chlorinated polyethylene rubber, the outer layer 10 is fixedly connected with a steel wire layer 11, the outer 11 outer fixedly connected with outside anti-compression layers 12 of steel wire layer, the outer fixedly connected with soft spring layer 13 of 12 of outside anti-compression layers, the outer fixedly connected with middle part wearing layer 14 in soft spring layer 13, the outer fixedly connected with outside fibrous layer 15 of the 14 outer fixedly connected with in middle part wearing layer, the outer fixedly connected with outside wearing layer 16 of outside fibrous layer 15, the steel pipe can't be bent at will along with the tendency of shape, the work that the steel pipe can't be accomplished can be accomplished to flexible spool.

Fill the inside evenly distributed of flexible glue 6 and be provided with anti cable 7, vice anti-pressure layer 8 material is chlorinated polyethylene rubber, and steel wire layer 11 is two alternating types winding, and soft spring layer 13 is M shape and arranges, and outside fibrous layer 15 material is glass fiber cloth, and the 16 materials on the layer that wear-resistants in outside are polyester fiber, mainly are rubber and fibre, and the metal level is then wrapped up in the pipeline middle part, has avoided the corruption of liquid to the metal, and the life-span that causes subtracts the weak point.

The working principle is as follows: when liquid flows in flexible glue pipe 1, inside fibrous layer 2 ultrahigh molecular weight polyethylene fiber has protected because the extrusion that pressure caused the hose, and the quick washing of liquid breaks that causes, the effect of antiseep 3 lies in when the pipeline takes place the seepage through long-time work, it is inside to block liquid inflow pipeline, to steel wire layer 11, cause the corruption with soft spring layer 13, vice resistance to compression layer 8, main resistance to compression layer 10, outside resistance to compression layer 12 is then because external pressure extrudees at the pipeline, inside can't make liquid flow out, steel wire layer 11, soft spring layer 13 makes pipeline compressive capacity stronger.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an oil field fracturing is with flexible pipeline of special type superhigh pressure, includes flexible glue pipe (1), its characterized in that: the outer fixedly connected with inside fibrous layer (2) of flexible glue pipe (1), inside fibrous layer (2) material is ultrahigh molecular weight polyethylene fiber, the outer fixedly connected with antiseep layer (3) of inside fibrous layer (2), antiseep layer (3) material is polyvinyl chloride, the outer fixedly connected with inside nylon gauze (4) of antiseep layer (3), the outer fixedly connected with inside wearing layer (5) of inside nylon gauze (4), the material of inside wearing layer (5) is wear-resistant rubber, the outer fixedly connected with of inside wearing layer (5) fills flexible glue (6), it is butadiene-acrylonitrile rubber to fill flexible glue (6) material, fill flexible glue (6) outer fixedly connected with vice resist compression layer (8), vice resist compression layer (8) outer fixedly connected with outside nylon gauze (9), outside nylon gauze (9) outer fixedly connected with owner resist compression layer (10), the main anti-pressure layer (10) is made of chlorinated polyethylene rubber, the outer fixedly connected steel wire layer (11) of the main anti-pressure layer (10), the outer fixedly connected outer anti-pressure layer (12) of the steel wire layer (11), the outer fixedly connected soft spring layer (13) of the outer anti-pressure layer (12), the outer fixedly connected middle anti-pressure layer (14) of the soft spring layer (13), the outer fixedly connected outer fiber layer (15) of the middle anti-pressure layer (14), and the outer fixedly connected outer anti-pressure layer (16) of the outer fiber layer (15).

2. The special ultrahigh pressure flexible pipeline for oilfield fracturing as claimed in claim 1, wherein: the interior of the filling soft rubber (6) is uniformly distributed and provided with anti-pulling cables (7).

3. The special ultrahigh pressure flexible pipeline for oilfield fracturing as claimed in claim 1, wherein: the auxiliary anti-pressure layer (8) is made of chlorinated polyethylene rubber.

4. The special ultrahigh pressure flexible pipeline for oilfield fracturing as claimed in claim 1, wherein: the steel wire layers (11) are wound in two staggered ways.

5. The special ultrahigh pressure flexible pipeline for oilfield fracturing as claimed in claim 1, wherein: the soft spring layers (13) are arranged in an M shape.

6. The special ultrahigh pressure flexible pipeline for oilfield fracturing as claimed in claim 1, wherein: the outer fiber layer (15) is made of glass fiber cloth.

7. The special ultrahigh pressure flexible pipeline for oilfield fracturing as claimed in claim 1, wherein: the outer anti-wear layer (16) is made of polyester fibers.