CN114248502A - Metal-reinforced anti-corrosion composite continuous oil pipe - Google Patents

Metal-reinforced anti-corrosion composite continuous oil pipe Download PDF

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Publication number
CN114248502A
CN114248502A CN202210098406.2A CN202210098406A CN114248502A CN 114248502 A CN114248502 A CN 114248502A CN 202210098406 A CN202210098406 A CN 202210098406A CN 114248502 A CN114248502 A CN 114248502A
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China
Prior art keywords
layer
tensile
oil
metal
resistance
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CN202210098406.2A
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Chinese (zh)
Inventor
陈伟豪
朱华升
王勇
张波
孟庆虎
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Shaanxi Xinxin Intelligent Pipe Co ltd
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Shaanxi Xinxin Intelligent Pipe Co ltd
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Priority to CN202210098406.2A priority Critical patent/CN114248502A/en
Publication of CN114248502A publication Critical patent/CN114248502A/en
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    • 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 non-planar shape
    • 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
    • B32B15/043—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 metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B15/08—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 synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B15/08—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 synthetic resin
    • B32B15/082—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 synthetic resin comprising vinyl resins; comprising acrylic resins
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    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1085—Wear protectors; Blast joints; Hard facing
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
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    • B32B2597/00—Tubular articles, e.g. hoses, pipes

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention provides a metal reinforced anti-corrosion composite continuous oil pipe which comprises an inner liner layer, a reinforcing layer, a tensile layer, an outer protective layer, a sliding wear-resistant layer and an insulating interlayer. The metal reinforced anti-corrosion composite continuous pipe has the performances of high pressure bearing, corrosion resistance, good flexibility, strong tensile strength and external impact resistance, longer service life than a common steel pipe, low cost, higher safety coefficient than a nonmetal composite pipe and the like, and is increasingly applied to development and application of oil and gas fields. The enhancement layer of the invention realizes the enhancement of the tube body by winding the steel band or the stainless steel band, can bear the internal pressure and effectively solve the damage to the tube body caused by external impact. The special structure of the pipeline can provide reliable compression resistance (inside and outside), tensile resistance, high temperature resistance and other characteristics in gathering and transportation pipelines for water injection, oil extraction and the like of oil fields, and the pipeline can be used for oil and water well extraction and injection pipelines for conventional oil and gas reservoir exploitation. Due to good tensile resistance and external pressure resistance, the composite material can be more widely applied to the requirements of oil field conveying pipelines.

Description

Metal-reinforced anti-corrosion composite continuous oil pipe
Technical Field
The invention relates to the field of pipeline equipment, in particular to a metal reinforced anti-corrosion composite continuous oil pipe.
Background
Along with the increase of the time of oil field exploitation, digital equipment is applied more and more, production enterprises have requirements on energy conservation, emission reduction, cost reduction and efficiency improvement, steel oil pipes in the traditional sense only have the function of pressure-bearing conveying, the efficiency is low, the energy consumption is high, the steel oil pipes are easy to corrode and lose efficacy, the construction operation efficiency is low, the production requirements cannot be effectively met, and the steel oil pipes are basically scrapped after being damaged and difficult to repair.
The existing oilfield gathering and transportation pipeline takes a steel pipeline as a main conveying pipe, a conveying medium contains various mineral substances and corrosive media, and the steel pipeline frequently suffers from corrosion failure, damage and the like when being used for a long time, so that serious accidents can be caused seriously. The non-metal plastic composite pipe developed in the later stage can solve the corrosion resistance problem, but has the defects of poor tensile capability and poor external impact resistance, and the phenomena of breakage failure of the pipe body and damage and leakage caused by external force damage and the like often occur in application.
Disclosure of Invention
The invention aims to provide a metal reinforced anti-corrosion composite coiled tubing to solve the problems mentioned in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme: a metal-reinforced corrosion-resistant composite coiled tubing, comprising:
an inner liner layer;
the reinforcing layers are tightly wound on the outer layer of the inner lining layer at a set pitch and a winding angle of 42-88 degrees, the number of wound layers is an even number, a layer of high polymer with the thickness of 1-2mm is coated between the reinforcing layers of the even number to serve as a sliding wear-resistant layer, and a high polymer insulating interlayer with the thickness of 1-2mm is coated outside the reinforcing layers;
the tensile layer is tightly wound on the outer layer of the reinforcing layer at a set pitch and a winding angle of 20-60 degrees, and the number of wound layers is an even number;
and the outer protective layer is coated outside the tensile layer.
Further, in the present invention, the number of winding layers and the diameter of the reinforcing layer and the tensile layer are set according to a set value of the tensile force.
Further, in the present invention, the inner liner layer is formed by extrusion molding of PE, PEX, PERT, HDPE, PP, PA, PPs, PVDF, or a modified polymer.
Further, in the invention, the material of the enhancement layer is a high-strength steel belt or a stainless steel belt and a steel wire belt;
furthermore, in the invention, the tensile layer is made of plastic-coated steel wires, stainless steel wires, polyester fiber wires/belts or aramid fiber wires/belts, and the width of the tensile layer is 20-50 mm.
Further, in the invention, the outer protection layer is formed by extrusion coating of a high molecular polymer, and the coating material is HDPE, PP, PA, PPS, PVDF or a modified high molecular polymer.
The beneficial effects are that the technical scheme of this application possesses following technological effect:
1. the metal reinforced anti-corrosion composite continuous pipe has the performances of high pressure bearing, corrosion resistance, good flexibility, strong tensile strength and external impact resistance, longer service life than a common steel pipe, low cost, higher safety coefficient than a nonmetal composite pipe and the like, and is increasingly applied to development and application of oil and gas fields.
2. The enhancement layer of the invention realizes the enhancement of the tube body by winding the steel band or the stainless steel band, can bear the internal pressure and effectively solve the damage to the tube body caused by external impact. The special structure of the pipeline can provide reliable compression resistance (inside and outside), tensile resistance, high temperature resistance and other characteristics in gathering and transportation pipelines for water injection, oil extraction and the like of oil fields, and the pipeline can be used for oil and water well extraction and injection pipelines for conventional oil and gas reservoir exploitation. Due to good tensile resistance and external pressure resistance, the composite material can be more widely applied to the requirements of oil field conveying pipelines.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic cross-sectional view of the structure of the present invention.
FIG. 2 is an exploded view of the present invention.
In the figures, the meaning of the reference numerals is as follows: 1. an inner liner layer; 2. an enhancement layer; 3. a tensile layer; 4. and an outer protective layer.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings. In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily defined to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
As shown in fig. 1-2, the metal reinforced anti-corrosion composite coiled tubing comprises an inner liner layer 1, a reinforcing layer 2, a tensile layer 3, a sliding wear-resistant layer, an insulating interlayer and an outer protective layer 4.
1. The inner liner layer 1 is formed by extrusion molding of HDPE/PP/PA/PPS/PVDF or modified high molecular polymer. The main functions are as follows: a channel for conveying a medium; the performance of the material meets the requirement of GB/T15558.1; when PEX is adopted, the performance of the material meets the requirement of GB/T18992.2; when PERT is adopted, the performance of the material meets the requirement of GB/T28799.2; when PA is adopted, the performance of the material meets the requirement of ISO 22621-1; when PP is adopted, the performance of the polypropylene composite material meets the requirement of GB/T18742.2; when PVDF is used, the properties are in accordance with the requirements of ISO 10931; the lining pipe material can be natural color, and the material should not use return materials. The working condition environment applicability of the lining layer material is in accordance with: GB/T34903.1.
2. The enhancement layer 2 is formed by tightly winding a high-strength steel belt or a stainless steel belt on the outer diameter of the lining layer 1 at a winding angle of 42-88 degrees with respect to the axial line of the lining layer 1, and the winding pitch is determined according to different specifications of products; the number of winding layers is even, a layer of high molecular polymer with the thickness of 1-2mm is coated between the steel strips to serve as a sliding wear-resistant layer, the steel strips are spirally wound, and the wear-resistant strips are wound at an angle of 20-70 degrees; the outermost layer of steel belt is coated with 1-2mm of high molecular polymer insulating interlayer, which has the main functions: bears the internal pressure during medium transportation and bears a certain external pressure resistance and a certain impact resistance of the pipe body; further, welding or non-welding is performed between the steel bands of the wire spiral wound steel bands or the stainless steel bands (welded or not welded, left-handed, right-handed, even-numbered layers). Steel wire belts, cellulose and fiber belts are added, the layers can be bonded or not bonded, and the bonding (thermoplastic) performance meets the requirement of GB/T711-2008; or the performance of the stainless steel strip is in accordance with GB/T3280-2009.
3. The tensile layer 3 is formed by tightly weaving or winding plastic-coated steel wires, stainless steel wires or polyester fiber wires/tapes and aramid fiber wires/tapes at a certain pitch and a winding angle of 20-60 degrees on the outer layer of the reinforcement layer 2, the width of the tensile layer is 20-50mm, the winding pitch is determined according to different product specifications, the number of wound layers is an even number of layers, and the number of woven layers and the caliber of the steel wires are determined according to the design of a tensile force set value. The main functions are as follows: the tensile capacity and certain external impact resistance of the pipe body are improved; furthermore, the tensile layer is mainly made of plastic-coated steel wires and stainless steel wires. When the terylene industrial filament and the aramid industrial filament are adopted: the polyester industrial filament yarn is required to meet the following requirements: GB/T16604, aramid industrial filament YD/T1182.2.
4. The outer protective layer 4 is coated by high molecular polymer extrusion molding, and the coating material is as follows: HDPE/PP/PA/PPS/PVDF or modified high molecular polymer, its main effect is: the external abrasion resistance of the product is improved, the product is protected from being damaged by external force, and the thickness is larger than or equal to 3 mm.
This embodiment has following advantage, possesses single long length, corrosion-resistant, the operation is convenient, high-quality characteristics such as anti outer impact ability reinforce, tensile strength height, maintenance cost are low, long service life, possesses the ground observable function simultaneously, and this product can be coiled freely, possesses repeatedly usable's characteristics, can effectively reduce use cost.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims (6)

1. The utility model provides a metal reinforcing anticorrosion composite coiled tubing which characterized in that: the method comprises the following steps:
an inner liner layer;
the reinforcing layers are tightly wound on the outer layer of the inner lining layer at a set pitch and a winding angle of 42-88 degrees, the number of wound layers is an even number, a layer of high polymer with the thickness of 1-2mm is coated between the reinforcing layers of the even number to serve as a sliding wear-resistant layer, and a high polymer insulating interlayer with the thickness of 1-2mm is coated outside the reinforcing layers;
the tensile layer is tightly wound on the outer layer of the reinforcing layer at a set pitch and a winding angle of 20-60 degrees, and the number of wound layers is an even number;
and the outer protective layer is coated outside the tensile layer.
2. The metal-reinforced corrosion-resistant composite coiled tubing of claim 1, wherein: the number of winding layers and the caliber of the reinforcing layer and the tensile layer are set according to a set value of the tensile force.
3. The metal-reinforced corrosion-resistant composite coiled tubing of claim 1, wherein: the lining layer is formed by PE, PEX, PERT, HDPE, PP, PA, PPS, PVDF or modified high molecular polymer in an extrusion mode.
4. The metal-reinforced corrosion-resistant composite coiled tubing of claim 1, wherein: the material of the enhancement layer is high-strength steel band or stainless steel band and steel wire belt.
5. The metal-reinforced corrosion-resistant composite coiled tubing of claim 1, wherein: the tensile layer is made of plastic-coated steel wires, stainless steel wires, polyester fiber wires/belts or aramid fiber wires/belts, and the width of the tensile layer is 20-50 mm.
6. The metal-reinforced corrosion-resistant composite coiled tubing of claim 1, wherein: the outer protective layer is formed by extruding and coating a high polymer, and the coating material is HDPE, PP, PA, PPS, PVDF or a modified high polymer.
CN202210098406.2A 2022-01-19 2022-01-19 Metal-reinforced anti-corrosion composite continuous oil pipe Pending CN114248502A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108644492A (en) * 2018-05-03 2018-10-12 宁波欧佩亚海洋工程装备有限公司 A kind of resistance to ultralow temperature steel strip reinforced thermoplastic composite tube
CN211976158U (en) * 2020-04-20 2020-11-20 河北海恩橡塑制品有限公司 Resistance to crushing enhancement mode composite pipe
CN214997496U (en) * 2021-07-21 2021-12-03 陕西欣欣智能管业有限公司 Plastic composite continuous oil pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108644492A (en) * 2018-05-03 2018-10-12 宁波欧佩亚海洋工程装备有限公司 A kind of resistance to ultralow temperature steel strip reinforced thermoplastic composite tube
CN211976158U (en) * 2020-04-20 2020-11-20 河北海恩橡塑制品有限公司 Resistance to crushing enhancement mode composite pipe
CN214997496U (en) * 2021-07-21 2021-12-03 陕西欣欣智能管业有限公司 Plastic composite continuous oil pipe

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