CN112460344A - A wear-resisting hose assembly for fracturing operation - Google Patents

A wear-resisting hose assembly for fracturing operation Download PDF

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Publication number
CN112460344A
CN112460344A CN202011498543.2A CN202011498543A CN112460344A CN 112460344 A CN112460344 A CN 112460344A CN 202011498543 A CN202011498543 A CN 202011498543A CN 112460344 A CN112460344 A CN 112460344A
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CN
China
Prior art keywords
layer
wear
resistant
glue layer
hose
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Pending
Application number
CN202011498543.2A
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Chinese (zh)
Inventor
徐锦诚
杨鹏
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Yantai Taiyue Fluid Technology Co ltd
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Yantai Taiyue Fluid Technology Co ltd
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Priority to CN202011498543.2A priority Critical patent/CN112460344A/en
Publication of CN112460344A publication Critical patent/CN112460344A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/01—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses adapted for hoses having a multi-layer wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Abstract

The invention discloses a wear-resistant hose assembly for fracturing operation. The hose comprises a metal joint (1) connected with one end of a hose (2), and is characterized in that the hose (2) is structurally provided with a wear-resistant inner rubber layer (3), a pressure-bearing layer (5) with a wound steel wire layer (4) is arranged outside the wear-resistant inner rubber layer (3), and an outer rubber layer (6) is arranged outside the pressure-bearing layer (5); the wear-resistant inner rubber layer (3) is of a 2-5-layer structure, and each layer of the wear-resistant inner rubber layer (3) is made of wear-resistant materials with different colors. The invention has high strength and high wear resistance, can observe and detect the wear state of the wall of the hose, and has obvious progress and better economic benefit compared with the steel pipe manifold in the prior art.

Description

A wear-resisting hose assembly for fracturing operation
The technical field is as follows:
the invention relates to a hose assembly used under high pressure, in particular to a wear-resistant hose assembly used under high pressure and convenient to inspect.
Background art:
in the production process of oil and gas wells in the petroleum industry, fracturing operation exists according to the state of the oil and gas wells, batch fracturing sand stones are conveyed to a designated place, meanwhile, hydrochloric acid is required to be conveyed by a hose simultaneously for acidizing underground strata, and usually, a steel pipe is used as a conveying channel to bear the sand stone flow which drives high pressure and high-speed movement and exists during conveying. The conveying pipeline composed of the steel pipe and the metal pipe joint has the defects that the layout of the fracturing equipment is limited by the specification of the steel pipe due to the limitation of rigid materials, the conveying pipeline is heavy and inflexible, and the conveying pipeline is very troublesome to carry, install and disassemble; secondly, a large amount of steel pipes with different specifications need to be prestored; thirdly, the number of steel pipes and metal joints in the whole layout of the fracturing equipment is large, and various bent pipes need to be stored; fourthly, the flow resistance of the channel is increased due to the complexity of the fracturing conveying channel, and the output pressure has to be increased; fifthly, the difficulty of transition after the fracturing operation is finished is caused; sixthly, in the process of conveying fractured sand, high pressure, large flow and high flow velocity can generate vibration in the pipeline, and the vibration fatigue of the whole steel pipe pipeline can be caused. Based on the defects in the prior art, how to solve the efficient output of the sandstone of the fracturing operation still is a problem to be solved.
The invention content is as follows:
the invention aims to disclose a high-pressure-resistant and wear-resistant hose assembly for fracturing operation of an oil and gas well site.
The technical solution for realizing the invention is as follows: the hose comprises a metal joint connected with one end of the hose, and is characterized in that the hose is structurally provided with a wear-resistant inner rubber layer, a pressure-bearing layer with a wound steel wire layer is arranged outside the wear-resistant inner rubber layer, and an outer rubber layer is arranged outside the pressure-bearing layer; the wear-resistant inner rubber layer is of a 2-5-layer structure, and each layer of the wear-resistant inner rubber layer is made of wear-resistant materials with different colors.
The wear-resistant inner glue layer is composed of two layers, namely a black glue layer and a green glue layer from inside to outside; or the wear-resistant inner glue layer is three layers, namely a black glue layer, a green glue layer and a yellow glue layer from inside to outside; or the wear-resistant inner glue layer is four layers, namely a black glue layer, a green glue layer, a yellow glue layer and a red glue layer from inside to outside; or the wear-resistant inner glue layer is five layers which are a black glue layer, a green glue layer, a yellow glue layer, a red glue layer and a gray glue layer from inside to outside in sequence, and the thicknesses of all the layers are the same.
The metal joint is a high-pressure-resistant metal joint, or a buckling-pressing metal joint, or a pre-embedded type integrally-connected metal joint through vulcanization; and (3) carrying out carburizing treatment or surfacing wear-resistant material on the surface of the metal joint.
The pressure bearing layer is provided with two to ten winding steel wire layers, the steel wire and the hose are wound at an axial included angle of 30-89 degrees, and the winding directions of the adjacent winding steel wire layers are opposite.
The outer glue film be two-layer structure, be black outer glue film and red outer glue film from inside to outside in proper order, the thickness of black outer glue film and red outer glue film is 3/4 and 1/4 of the thickness of outer glue film respectively.
And the interfaces between the black glue layer and the green glue layer, between the green glue layer and the yellow glue layer, and between the yellow glue layer and the red glue layer and between the yellow glue layer and the gray glue layer are provided with tracer markers.
The tracing marker is a high-density rubber sheet containing lead powder, or the tracing marker is a radio frequency sheet.
A plurality of tracing markers are arranged on the same layer of the wear-resistant inner rubber layer, and the tracing markers on different layers are spaced at a proper distance in the axial direction of the hose; the outer surface of the hose is provided with surface marks of corresponding positions of the tracing marks.
0.5-1% of bentonite particles with the granularity of 8-10 nm are mixed in the rubber of each layer of the wear-resistant inner rubber layer in percentage by weight.
The materials of each layer of the wear-resistant inner rubber layer are ultra-high molecular weight polyethylene or PVDF materials or rubber or polyurethane or any combination of the materials.
The inventionThe hose assembly of the technical scheme is designed based on the specific technical requirements of fracturing operation, has high strength and high wear resistance, can observe and detect the wear state of the wall of the hose, and can bear 20m/s of gravels flowing at high speed and bear 15000-20000 PSI pressure to realize 10.3m in a fracturing operation field by using the technical scheme3The flexible pipe has the advantages of high flow rate per minute, good wear resistance, greatly prolonged service life which is four times of the service life of the existing steel pipe, simplified arrangement of oil field fracturing sites, quite simple equipment cloth layer, no need of excessive storage of a large number of bent pipes and joints, greatly reduced difficulty in transition, reduced installation and disassembly time, two-point connection of the whole flexible pipe, removal of excessive steel pipe elbows and movable elbows in the middle, reduced leakage probability, elimination of vibration of the pipeline through hose connection, elimination of vibration fatigue of the equipment, further prolonged service life of the pipeline and the equipment, and obvious progress and better economic benefit compared with the steel pipe manifold in the prior art.
The attached drawings of the specification:
fig. 1 is a schematic cross-sectional view of an embodiment of the overall structure of the present invention.
Fig. 2 is a schematic sectional view of the hose of the present invention.
The specific implementation mode is as follows:
the embodiments of the present invention are described in detail with reference to the accompanying drawings, and it should be noted that the embodiments of the present invention are provided to facilitate understanding of the technical solutions of the present invention, and should not be construed as limiting the scope of the claims of the present invention.
Referring to fig. 1-2, the technical solution of the embodiment of the present invention is: the hose comprises a metal joint 1 connected with one end of a hose 2, and is characterized in that the hose 2 is structurally provided with a wear-resistant inner rubber layer 3, a pressure-bearing layer 5 with a wound steel wire layer 4 is arranged outside the wear-resistant inner rubber layer 3, and an outer rubber layer 6 is arranged outside the pressure-bearing layer 5; the wear-resistant inner rubber layer 3 is of a two-five layer structure, and each layer of the wear-resistant inner rubber layer 3 is made of wear-resistant materials with different colors. The wear-resistant inner rubber layer 3 has strong self-bonding capacity, can better resist the friction and tearing action on the surface material of the wear-resistant inner rubber layer 3 when the sand flows at a high speed, so that the hose 2 has longer service life, the bearing layer 5 with the wound steel wire layer 4 has strong radial supporting force and axial tensile resistance, and the hose 2 has high pressure resistance while ensuring the tubular shape.
The wear-resistant inner glue layer 3 is of a two-layer structure and sequentially comprises a black glue layer 3-1 and a green glue layer 3-2 from inside to outside; or the wear-resistant inner glue layer 3 is of a three-layer structure and sequentially comprises a black glue layer 3-1, a green glue layer 3-2 and a yellow glue layer 3-3 from inside to outside; or the wear-resistant inner glue layer 3 is of a four-layer structure and sequentially comprises a black glue layer 3-1, a green glue layer 3-2, a yellow glue layer 3-3 and a red glue layer 3-4 from inside to outside; or the wear-resistant inner glue layer 3 is of a five-layer structure and sequentially comprises a black glue layer 3-1, a green glue layer 3-2, a yellow glue layer 3-3, a red glue layer 3-4 and a gray glue layer 3-5 from inside to outside, and the thicknesses of all the layers are the same. Because the wear-resisting inner rubber layer 3 contacts with the high-speed gravel flow, in the use process, the wear-resisting inner rubber layer 3 can be gradually worn by the gravel flow, once the wear-resisting inner rubber layer 3 is worn or partially worn, the strength of the hose 2 can be greatly reduced, the winding steel wire layer 4 in the pressure bearing layer 5 can be quickly corroded, if the winding steel wire layer is corroded by hydrochloric acid liquid, the degree of wear can be marked by the rubber layers with different colors of all layers, the degree of wear of the wear-resisting inner rubber layer 3 can be immediately judged only by observing the color of the inner surface of the hose 2, whether the hose assembly is replaced or not can be determined according to the driving pressure and the flow rate of the output gravel flow, the burst of the hose assembly under high pressure can be timely avoided, and safety accidents are avoided.
The metal joint 1 is a high-pressure-resistant metal joint, or a buckling-pressing metal joint, or a pre-embedded type integrally-connected metal joint through vulcanization; performing carburizing treatment or surfacing wear-resistant material on the surface of the metal joint; the metal joint is subjected to special wear-resistant treatment, and has good wear resistance.
The pressure bearing layer 5 is provided with two to ten winding steel wire layers 4, the steel wires and the hose 2 are wound at an axial included angle of 30-89 degrees, and the winding directions of the adjacent winding steel wire layers 4 are opposite; the structure of the wound steel wire layer 4 constructed as described above has a relatively strong radial supporting force, the internal stress of the entire wound steel wire layer 4 is minimized, and at the same time, it has good tensile strength and pressure pulse resistance.
Because the hose assembly has a poor use environment and the outer surface of the hose is also abraded, the outer adhesive layer 6 is of a two-layer structure, the black outer adhesive layer 6-1 and the red outer adhesive layer 6-2 are sequentially arranged from inside to outside, the thicknesses of the black outer adhesive layer 6-1 and the red outer adhesive layer 6-2 are 3/4 and 1/4 of the thickness of the outer adhesive layer 6 respectively, and after the hose assembly is used for a long time, if the black outer adhesive layer 6-1 is exposed, attention is given to the hose assembly, and preparation for replacement is prepared. The thickness of the black outer adhesive layer 6-1 and the red outer adhesive layer 6-2 can be adjusted according to the requirement.
As mentioned above, the wear-resistant inner adhesive layer 3 of the hose 2 is worn after being used for a long time, the above-mentioned worn state is generally observed when being transferred or being periodically disassembled, and before observation, the cleaning is generally needed, which is slightly inconvenient and easy to cause missed detection, therefore, the interfaces between the black adhesive layer 3-1 and the green adhesive layer 3-2, the green adhesive layer 3-2 and the yellow adhesive layer 3-3, the red adhesive layer 3-4 and the gray adhesive layer 3-5 are all provided with the tracer markers 7; if the outer surface of the hose 2 is detected by a portable detecting instrument, if the specific tracing marker 7 cannot be detected, the certain adhesive layer is worn, so that the wearing state of the wear-resistant inner adhesive layer 3 in the hose 2 can be detected without any cleaning no matter whether the hose 2 is in a working state or not.
The tracer markers 7 are high-density rubber sheets containing lead powder, the existence of a certain high-density rubber sheet can be directly measured out of the hose 2 by using a portable soft X-ray apparatus, the outer surface of the hose 2 is provided with a display mark 8 corresponding to each tracer marker 7, and each display mark 8 is provided with a number, so that accurate detection can be realized; or the tracing marker 7 is a radio frequency sheet, and whether a certain radio frequency sheet still exists can be measured by a handheld radio frequency scanner, the radio frequency technology is a very mature technology at present and can be purchased outside directly, and the radio frequency sheet is an extremely thin copper foil and does not influence the structural strength of the wear-resistant inner glue layer 3 at all.
Because some parts of the wear-resistant inner rubber layer 3 of the hose 2 are worn more than other parts due to the use condition, a plurality of tracer markers 7 are arranged on the same layer of the wear-resistant inner rubber layer 3, and the wear conditions of different parts can be obtained by detecting the plurality of tracer markers 7; in order to facilitate detection and avoid detection errors of the tracer markers 7, the tracer markers 7 of different layers in the wear-resistant inner rubber layer 3 of the hose 2 are spaced apart by a suitable distance in the axial direction of the hose 2, which can avoid generation of false signals.
In order to further improve the strength of the wear-resistant inner rubber layer 3 of the hose 2, 0.5-1% by weight of bentonite particles with the granularity of 8-10 nm are mixed in the rubber of each layer of the wear-resistant inner rubber layer 3, due to the unique physicochemical characteristics of the nanoscale bentonite, rubber molecules or a certain group of the rubber molecules can be inserted into the interlayer structure of the bentonite particles, and a plurality of molecules or groups of a plurality of molecules can be simultaneously inserted into the interlayer structure of each bentonite particle to form a larger molecular group in the rubber, so that the abrasion of the rubber layer caused by the sand-stone flow through friction is more difficult, namely the wear resistance of the inner rubber layer 3 is improved.
In order to further improve the wear-resisting property of the wear-resisting inner rubber layer 3 of the hose 2, each layer of the wear-resisting inner rubber layer 3 is made of ultra-high molecular weight polyethylene or PVDF material or rubber or polyurethane or any combination of the materials, the use of various single materials can reduce the complexity of the preparation process and ensure the basic property, and the mixed use of more than two materials can provide the hose with various performance requirements although the complexity of the preparation process is increased, so that the service life and other properties are further improved.

Claims (10)

1. A wear-resistant hose assembly for fracturing operation comprises a metal connector (1) connected with one end of a hose (2), and is characterized in that the hose (2) is structurally provided with a wear-resistant inner rubber layer (3), a pressure bearing layer (5) with a wound steel wire layer (4) is arranged outside the wear-resistant inner rubber layer (3), and an outer rubber layer (6) is arranged outside the pressure bearing layer (5); the wear-resistant inner rubber layer (3) is of a 2-5-layer structure, and each layer of the wear-resistant inner rubber layer (3) is made of wear-resistant materials with different colors.
2. The wear-resistant hose assembly for fracturing operations as claimed in claim 1, wherein said inner wear-resistant layer (3) is formed by two layers, namely a black layer (3-1) and a green layer (3-2) from the inside to the outside; or the wear-resistant inner glue layer (3) is three layers, namely a black glue layer (3-1), a green glue layer (3-2) and a yellow glue layer (3-3) from inside to outside; or the wear-resistant inner glue layer (3) is four layers, and the black glue layer (3-1), the green glue layer (3-2), the yellow glue layer (3-3) and the red glue layer (3-4) are arranged in sequence from inside to outside; or the wear-resistant inner glue layer (3) comprises five layers, namely a black glue layer (3-1), a green glue layer (3-2), a yellow glue layer (3-3), a red glue layer (3-4) and a gray glue layer (3-5) from inside to outside in sequence, and the thicknesses of all the layers are the same.
3. The wear-resistant hose assembly for fracturing operations as claimed in claim 1 or 2, wherein said metal joint (1) is a high pressure-resistant metal joint, or a crimping metal joint, or an embedded vulcanized integral joint metal joint; and (3) carrying out carburizing treatment or surfacing wear-resistant material on the surface of the metal joint.
4. A wear-resistant hose assembly for use in fracturing operations as claimed in claim 3 wherein said pressure bearing layer (5) has two to ten layers of wound steel wires (4) wound at an angle of 30 ° to 89 ° to the axial direction of the hose (2), adjacent layers of wound steel wires (4) being wound in opposite directions.
5. The wear-resistant hose assembly for fracturing operations as claimed in claim 4, wherein said outer rubber layer (6) has a two-layer structure comprising, in order from the inside to the outside, a black outer rubber layer (6-1) and a red outer rubber layer (6-2), and the black outer rubber layer (6-1) and the red outer rubber layer (6-2) have thicknesses 3/4 and 1/4, respectively, which are the thicknesses of the outer rubber layer (6).
6. The wear-resistant hose assembly for fracturing operations of claim 5, wherein the interfaces between the black glue layer (3-1) and the green glue layer (3-2), the green glue layer (3-2) and the yellow glue layer (3-3), the yellow glue layer (3-3) and the red glue layer (3-4) and the gray glue layer (3-5) are provided with tracer markers (7).
7. The wear-resistant hose assembly for fracturing operations of claim 6, wherein the tracer marker (7) is a high density rubber sheet containing lead powder or the tracer marker (7) is a radio frequency sheet.
8. The wear-resistant hose assembly for fracturing operation according to claim 7, wherein the same layer of the wear-resistant inner rubber layer (3) is provided with a plurality of tracer markers (7), and the tracer markers (7) of different layers are spaced at a proper distance in the axial direction of the hose (2); the outer surface of the hose (2) is provided with a surface mark (8) of the corresponding position of each tracing marker (7).
9. The wear-resistant hose assembly for fracturing operation as claimed in claim 8, wherein 0.5-1 wt% of bentonite particles with a particle size of 8-10 nm are mixed in the rubber of each layer of the wear-resistant inner rubber layer (3).
10. A wear-resistant hose assembly for use in fracturing operations as claimed in claim 9 wherein said wear-resistant inner layer (3) is made of ultra high molecular weight polyethylene or PVDF or rubber or polyurethane or any combination thereof.
CN202011498543.2A 2020-12-17 2020-12-17 A wear-resisting hose assembly for fracturing operation Pending CN112460344A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114439447A (en) * 2021-11-12 2022-05-06 烟台杰瑞石油服务集团股份有限公司 Connecting device of manifold sledge, fracturing system and operation method of fracturing system
WO2022256373A1 (en) * 2021-06-03 2022-12-08 Caterpillar Inc. Multi-layer hose with tracer material

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CN114439447B (en) * 2021-11-12 2022-11-18 烟台杰瑞石油服务集团股份有限公司 Connecting device of manifold sledge, fracturing system and operation method of fracturing system

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Application publication date: 20210309