CN113192669A - Intelligent umbilical cable for marine oil and gas transmission and processing technology thereof - Google Patents

Intelligent umbilical cable for marine oil and gas transmission and processing technology thereof Download PDF

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Publication number
CN113192669A
CN113192669A CN202110489891.1A CN202110489891A CN113192669A CN 113192669 A CN113192669 A CN 113192669A CN 202110489891 A CN202110489891 A CN 202110489891A CN 113192669 A CN113192669 A CN 113192669A
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China
Prior art keywords
layer
conveying
optical fiber
polyester
pipe
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CN202110489891.1A
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Chinese (zh)
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CN113192669B (en
Inventor
李林森
陈静
徐静
田崇军
夏霏霏
沈长春
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Far East Cable Co Ltd
New Far East Cable Co Ltd
Far East Composite Technology Co Ltd
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Far East Cable Co Ltd
New Far East Cable Co Ltd
Far East Composite Technology Co Ltd
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Publication of CN113192669A publication Critical patent/CN113192669A/en
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Publication of CN113192669B publication Critical patent/CN113192669B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0216—Two layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/322—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising humidity sensing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/326—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising pressure sensing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

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Abstract

The invention discloses an intelligent umbilical cable for marine oil and gas transmission and a processing technology thereof, wherein the umbilical cable comprises a first jacket layer, a first polyester wrapping layer and a central tube unit, the central tube unit comprises a second jacket layer, a second polyester wrapping layer and a central twisted tube, optical fiber sensors are arranged on the first jacket layer, the first polyester wrapping layer, the second jacket layer and the second polyester wrapping layer, a first conveying pipe and a second conveying pipe are circumferentially arranged between the first polyester wrapping layer and the second jacket layer, the central twisted tube is formed by twisting a third conveying pipe and a fourth conveying pipe, and the outer diameter of the third conveying pipe is larger than the outer diameters of the first conveying pipe, the second conveying pipe and the fourth conveying pipe. The invention provides a method for conveying nitrogen and subsea production control liquid for an underwater oil well, which monitors the umbilical cable operating environment in real time by arranging an optical fiber temperature sensor, an optical fiber pressure sensor and an optical fiber humidity sensor, ensures that a required medium is transmitted to the underwater oil well under the safe condition, and has the advantages of corrosion resistance, high strength, long service life and easy replacement.

Description

Intelligent umbilical cable for marine oil and gas transmission and processing technology thereof
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an intelligent umbilical cable for marine oil and gas transmission and a processing technology thereof.
Background
Due to the complex and severe marine environment, special materials and structures are often required to be considered during the design of the umbilical cable, but the umbilical cable cannot be completely guaranteed not to break down within the specified service life. Once a fault occurs or the use environment requirement exceeds the design parameters of the umbilical cable, the medium transmission channel or the operation parameters need to be adjusted immediately, and how to find the problem in time is a difficult problem.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an intelligent umbilical cable for marine oil and gas transmission and a processing technology thereof.
In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:
an intelligent umbilical cable for marine oil and gas transmission, which comprises a first sheath layer, a first polyester wrapping layer and a central pipe unit which are arranged in sequence from outside to inside, the center tube unit includes by outer to interior second restrictive coating that sets gradually, the second polyester is around the covering and set up in the second polyester around the inside center transposition pipe of covering, first restrictive coating, first polyester is around the covering, second restrictive coating and second polyester are around setting up optical fiber sensor on the covering respectively, first polyester is around a plurality of first conveyer pipes and second conveyer pipes of arranging along the circumferencial direction between covering and the second restrictive coating, center transposition pipe is formed by a plurality of third conveyer pipes and a plurality of fourth conveyer pipe transposition, third conveyer pipe both sides are provided with the fourth conveyer pipe respectively, the external diameter of third conveyer pipe is greater than first conveyer pipe, the external diameter of second conveyer pipe and fourth conveyer pipe, the external diameter of second conveyer pipe is greater than the external diameter of first conveyer pipe.
Furthermore, two optical fiber pressure sensors and two optical fiber temperature sensors are symmetrically arranged on the first sheath layer and the second sheath layer along the circumferential direction, all the optical fiber pressure sensors are coaxially arranged, and all the optical fiber temperature sensors are coaxially arranged.
Furthermore, the first polyester wrapping layer and the second polyester wrapping layer are formed by wrapping two layers of polyester tapes, and an optical fiber humidity sensor is arranged between the two layers of polyester tapes.
Furthermore, nine first conveying pipes and four second conveying pipes are sequentially arranged clockwise along the circumferential direction between the first polyester wrapping layer and the second sheath layer, and the cabling pitch of the first conveying pipes, the second conveying pipes and the central pipe unit is 1000-1200 mm.
Furthermore, first weaving layer and first insulating layer set gradually from inside to outside first conveyer pipe outside, the thickness on first insulating layer is not less than 1.5 mm.
Further, second weaving layer and second insulating layer set gradually from inside to outside the second conveyer pipe, the thickness of second insulating layer is not less than 1.5 mm.
Furthermore, third conveyer pipe and fourth conveyer pipe are equipped with two respectively, and two fourth conveyer pipe symmetries set up in the third conveyer pipe both sides that two symmetries set up, and the transposition pitch control of third conveyer pipe and fourth conveyer pipe is at 800 ~ 1000mm, and the fourth conveyer pipe is the same with first conveyer pipe structure, and fourth conveyer pipe outside from interior to exterior sets gradually first weaving layer and first insulation layer, and the thickness on first insulation layer is not less than 1.5 mm.
Further, weaving layer and insulating layer set gradually from inside to outside the third conveyer pipe, the thickness of insulating layer is not less than 1.5 mm.
Further, the external diameter of first conveyer pipe and fourth conveyer pipe is the same and be 6 ~ 6.5mm, and the external diameter of second conveyer pipe is 10 ~ 10.5mm, and the external diameter of third conveyer pipe is 13 ~ 13.5 mm.
A processing technology of an intelligent umbilical cable for marine oil and gas transmission comprises the following steps:
1) extruding three crosslinked polyethylene pipes with different outer diameters, and controlling the concentricity of the inner diameter and the outer diameter of each crosslinked polyethylene pipe to be more than 85% to respectively obtain a first conveying pipe, a second conveying pipe, a third conveying pipe and a fourth conveying pipe;
2) weaving a layer of polypropylene fiber outside all the cross-linked polyethylene pipes, wherein the weaving angle is required to be 40-50 degrees, and the weaving density is more than or equal to 95 percent;
3) extruding and wrapping a layer of TPEE with the thickness not less than 1.5mm outside the polypropylene fiber weaving layer for insulation, wherein the concentricity requirement is more than or equal to 85 percent;
4) stranding two third conveying pipes and two fourth conveying pipes obtained by extrusion in the step 3) into a cable, controlling the stranding pitch to be 800-1000 mm, then wrapping two layers of polyester tapes outside, and arranging an optical fiber humidity sensor between the two layers of polyester tapes;
5) extruding a second sheath layer, wherein the concentricity of the second sheath layer is more than or equal to 85%, uniformly placing two optical fiber pressure sensors and two optical fiber temperature sensors during extrusion, coaxially arranging all the optical fiber pressure sensors, and coaxially arranging all the optical fiber temperature sensors to obtain a central tube unit;
6) taking a central pipe unit extruded with a second sheath layer as a central shaft, cabling with a first conveying pipe and four second conveying pipes insulated by extruded TPEE, wherein the cabling pitch is controlled to be 1000-1200 mm, wrapping two layers of polyester tapes after cabling, and arranging an optical fiber humidity sensor between the two layers of polyester tapes;
7) the first sheath layer is wrapped in an extruding mode, the concentricity of the first sheath layer is larger than or equal to 85%, two optical fiber pressure sensors and two optical fiber temperature sensors are evenly placed during the extruding process, all the optical fiber pressure sensors are coaxially arranged, all the optical fiber temperature sensors are coaxially arranged, and finally the required intelligent umbilical cable for marine oil and gas transmission is obtained.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention mainly conveys nitrogen and seabed oil production control liquid for the underwater oil well, and an optical fiber sensor is added when the structure is designed, so that the umbilical cable running environment can be monitored in real time, and the transmission of required media to the underwater oil well under the safe condition is ensured;
2. the invention mainly arranges an optical fiber temperature sensor, an optical fiber pressure sensor and an optical fiber humidity sensor, and the optical fiber pressure sensor can monitor whether the pressure value borne by the cable is in a safe area in real time because the seabed belongs to a high-pressure environment; the optical fiber temperature sensor mainly monitors whether the transmission and working temperature of a cable medium are normal or not; the optical fiber humidity sensor is used for monitoring whether the transmission medium leaks;
3. the pipeline material for transmitting nitrogen and control liquid is crosslinked polyethylene, the crosslinked polyethylene has high strength and good corrosion resistance, and a layer of polypropylene fiber is wrapped outside each crosslinked polyethylene pipe to increase the strength of the medium transmission pipe.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to clearly and clearly define the scope of the present invention.
Example 1
As shown in figure 1, the intelligent umbilical cable for marine oil and gas transmission comprises a first sheath layer 1, a first polyester wrapping layer 2 and a central tube unit which are sequentially arranged from outside to inside, wherein the central tube unit comprises a second sheath layer 5, a second polyester wrapping layer 6 and a central twisted tube arranged inside the second polyester wrapping layer 6, the first sheath layer 1, the first polyester wrapping layer 2, the second sheath layer 5 and the second polyester wrapping layer 6 are sequentially arranged from outside to inside, optical fiber sensors are respectively arranged on the first sheath layer 1, the first polyester wrapping layer 2, the second sheath layer 5 and the second polyester wrapping layer 6, the types of the optical fiber sensors are selected to be optical fiber temperature sensors, optical fiber pressure sensors and/or optical fiber humidity sensors according to actual requirements, a plurality of first conveying tubes 17 and a plurality of second conveying tubes 14 are arranged between the first polyester wrapping layer 2 and the second wrapping layer 5 along the circumferential direction, the central twisted tube is formed by twisting a plurality of third conveying tubes 11 and a plurality of fourth conveying tubes 8, the third conveyer pipe 11 both sides are provided with fourth conveyer pipe 8 respectively, and the external diameter of third conveyer pipe 11 is greater than the external diameter of first conveyer pipe 17, second conveyer pipe 14 and fourth conveyer pipe 8, and the external diameter of first conveyer pipe 17 is less than the external diameter of second conveyer pipe 14, and first conveyer pipe 17 is the same with fourth conveyer pipe 8 structure, the external diameter is the same.
As a specific embodiment, two optical fiber pressure sensors 3 and two optical fiber temperature sensors 4 are symmetrically arranged on the first sheath layer 1 and the second sheath layer 5 along the circumferential direction, all the optical fiber pressure sensors 3 are coaxially arranged, and all the optical fiber temperature sensors 4 are coaxially arranged. First polyester is formed by two-layer polyester tape winding around covering 2 and second polyester around covering 6, all sets up an optical fiber humidity sensor 7 around the covering 2 of first polyester and second polyester around between the two-layer polyester area of covering 6.
As a specific implementation mode, nine first conveying pipes 17 and four second conveying pipes 14 are sequentially arranged clockwise in the circumferential direction between the first polyester wrapping layer 2 and the second sheath layer 5, the number of the third conveying pipes 11 and the number of the fourth conveying pipes 8 are two respectively, the two fourth conveying pipes 8 are symmetrically arranged on two sides of the third conveying pipes 11 which are symmetrically arranged, and the twisting pitches of the third conveying pipes 11 and the fourth conveying pipes 8 are controlled to be 800-1000 mm.
First weaving layer 10 and first insulating layer 9 are all set gradually from inside to outside in first conveyer pipe 17 and fourth conveyer pipe 8 outside, and the thickness of first insulating layer 9 is not less than 1.5 mm. Second weaving layer 15 and second insulating layer 16 are set gradually from inside to outside to the outside in second conveyer pipe 14 outside, and the thickness of second insulating layer 16 is not less than 1.5 mm. The outside from interior to exterior of third conveyer pipe 11 sets gradually weaving layer and insulating layer, and the thickness of insulating layer is not less than 1.5 mm. It should be noted that first braided layer 10, second braided layer 15 and braided layer may be of the same structure (formed by braiding polypropylene filaments, etc.) or of different structures, and first insulating layer 9, second insulating layer 16 and insulating layer may be of the same structure (TPEE insulation or other insulation) or of different structures, and may be flexibly adjusted according to user requirements.
First conveyer pipe 17, second conveyer pipe 14, third conveyer pipe 11 and fourth conveyer pipe 8 are soft crosslinked polyethylene pipe, and the external diameter of first conveyer pipe 17 and fourth conveyer pipe 8 is 6 ~ 6.5mm, and the external diameter of second conveyer pipe 14 is 10 ~ 10.5mm, and the external diameter of third conveyer pipe 11 is 13 ~ 13.5 mm. The first conveying pipe 17 and the fourth conveying pipe 8 are nitrogen conveying pipes, the second conveying pipe 14 and the third conveying pipe 11 are oil extraction control liquid conveying pipes, the design of the pipelines is mainly developed for meeting seabed oil extraction equipment, thirteen crosslinked polyethylene pipes with different outer diameters are arranged on the outer side of a central twisted pipe, two second conveying pipes 14 and five first conveying pipes 17 are common pipes, the positions of the common pipes are not fixed, the common pipes are only required to be installed at installation and connection time intervals, and the rest 6 pipes are standby pipes, so that the common pipes are prevented from being broken down; the umbilical cable is relatively hard, so that the arrangement has the advantages that the replacement difficulty is reduced when the cross-linked polyethylene pipe leaks, and the fault treatment time is saved; the two third delivery pipes 11 and the two fourth delivery pipes 8 in the middle are symmetrically arranged, so that the stress is more uniform, and the deformation resistance is higher after the submarine water pressure is borne.
A processing technology of an intelligent umbilical cable for marine oil and gas transmission comprises the following steps:
1) extruding three crosslinked polyethylene pipes with different outer diameters, and controlling the concentricity of the inner diameter and the outer diameter of each crosslinked polyethylene pipe to be more than 85% to respectively obtain nine first conveying pipes 17, four second conveying pipes 14, two third conveying pipes 11 and two fourth conveying pipes 8;
2) weaving a layer of polypropylene fiber outside all the cross-linked polyethylene pipes, wherein the weaving angle is required to be 40-50 degrees, and the weaving density is more than or equal to 95 percent;
3) extruding and wrapping a layer of TPEE with the thickness not less than 1.5mm outside the polypropylene fiber weaving layer for insulation, wherein the concentricity requirement is more than or equal to 85 percent;
4) stranding two third conveying pipes 11 and two fourth conveying pipes 8 which are obtained by extrusion in the step 3) into a cable, controlling the stranding pitch to be 800-1000 mm, wrapping two layers of polyester tapes outside, and arranging an optical fiber humidity sensor 7 between the two layers of polyester tapes;
5) extruding a second sheath layer 5, wherein the concentricity of the second sheath layer 5 is more than or equal to 85%, uniformly placing two optical fiber pressure sensors 3 and two optical fiber temperature sensors 4 during extrusion, coaxially arranging all the optical fiber pressure sensors 3, and coaxially arranging all the optical fiber temperature sensors 4 to obtain a central tube unit;
6) taking a central pipe unit extruded with a second sheath layer 5 as a central shaft, cabling with nine first conveying pipes 17 and four second conveying pipes 14 which are extruded with TPEE for insulation, wherein the cabling pitch is controlled to be 1000-1200 mm, wrapping two layers of polyester tapes after cabling, and arranging an optical fiber humidity sensor 7 between the two layers of polyester tapes;
7) the first restrictive coating 1 of crowded package, the concentricity of first restrictive coating 1 is more than or equal to 85%, evenly places two optic fibre pressure sensor 3 and two optic fibre temperature sensor 4 during crowded package, and all optic fibre pressure sensor 3 coaxial settings, all optic fibre temperature sensor 4 coaxial settings finally obtain required intelligent umbilical for the transmission of ocean oil gas.
The parts of the invention not specifically described can be realized by adopting the prior art, and the details are not described herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. An intelligent umbilical cable for marine oil and gas transmission is characterized by comprising a first jacket layer, a first polyester wrapping layer and a central tube unit which are sequentially arranged from outside to inside, wherein the central tube unit comprises a second jacket layer, a second polyester wrapping layer and a central twisted tube arranged inside the second polyester wrapping layer, the first jacket layer, the first polyester wrapping layer, the second jacket layer and the second polyester wrapping layer are respectively provided with an optical fiber sensor, a plurality of first conveying tubes and second conveying tubes are arranged between the first polyester wrapping layer and the second jacket layer along the circumferential direction, the central twisted tube is formed by twisting a plurality of third conveying tubes and a plurality of fourth conveying tubes, the two sides of the third conveying tubes are respectively provided with the fourth conveying tubes, and the outer diameter of the third conveying tubes is larger than that of the first conveying tubes, the second conveying tubes and the fourth conveying tubes, the outer diameter of the second delivery pipe is larger than that of the first delivery pipe.
2. The intelligent umbilical cable for offshore oil and gas transmission according to claim 1, wherein the first sheath layer and the second sheath layer are symmetrically provided with two optical fiber pressure sensors and two optical fiber temperature sensors along the circumferential direction, all the optical fiber pressure sensors are coaxially arranged, and all the optical fiber temperature sensors are coaxially arranged.
3. The intelligent umbilical cable for marine oil and gas transmission according to claim 1, wherein the first polyester wrapping layer and the second polyester wrapping layer are formed by wrapping two layers of polyester tapes, and an optical fiber humidity sensor is arranged between the two layers of polyester tapes.
4. The intelligent umbilical cable for marine oil and gas transmission according to claim 1, wherein nine first conveying pipes and four second conveying pipes are sequentially arranged between the first polyester wrapping layer and the second sheathing layer clockwise along the circumferential direction, and the cabling pitch of the first conveying pipes, the second conveying pipes and the central pipe unit is 1000-1200 mm.
5. The intelligent umbilical cable for marine oil and gas transmission according to claim 1, wherein the first conveying pipe is externally provided with a first woven layer and a first insulating layer in sequence from inside to outside, and the thickness of the first insulating layer is not less than 1.5 mm.
6. The intelligent umbilical cable for marine oil and gas transmission of claim 1, wherein the second conveying pipe is externally provided with a second braided layer and a second insulating layer in sequence from inside to outside, and the thickness of the second insulating layer is not less than 1.5 mm.
7. The intelligent umbilical cable for marine oil and gas transmission according to claim 1, wherein the number of the third conveying pipes and the number of the fourth conveying pipes are two, the two fourth conveying pipes are symmetrically arranged on two sides of the two symmetrically arranged third conveying pipes, the twisting pitch of the third conveying pipes and the twisting pitch of the fourth conveying pipes are controlled to be 800-1000 mm, the fourth conveying pipes are identical to the first conveying pipes in structure, a first woven layer and a first insulating layer are sequentially arranged outside the fourth conveying pipes from inside to outside, and the thickness of the first insulating layer is not less than 1.5 mm.
8. The intelligent umbilical cable for marine oil and gas transmission according to claim 1, wherein a braided layer and an insulating layer are sequentially arranged outside the third conveying pipe from inside to outside, and the thickness of the insulating layer is not less than 1.5 mm.
9. The intelligent umbilical cable for marine oil and gas transmission according to claim 1, wherein the first conveying pipe and the fourth conveying pipe have the same outer diameter of 6-6.5 mm, the second conveying pipe has the outer diameter of 10-10.5 mm, and the third conveying pipe has the outer diameter of 13-13.5 mm.
10. The process of making an intelligent umbilical for use in marine oil and gas transmission according to any one of claims 1 to 9, comprising the steps of:
1) extruding three crosslinked polyethylene pipes with different outer diameters, and controlling the concentricity of the inner diameter and the outer diameter of each crosslinked polyethylene pipe to be more than 85% to respectively obtain a first conveying pipe, a second conveying pipe, a third conveying pipe and a fourth conveying pipe;
2) weaving a layer of polypropylene fiber outside all the cross-linked polyethylene pipes, wherein the weaving angle is required to be 40-50 degrees, and the weaving density is more than or equal to 95 percent;
3) extruding and wrapping a layer of TPEE with the thickness not less than 1.5mm outside the polypropylene fiber weaving layer for insulation, wherein the concentricity requirement is more than or equal to 85 percent;
4) stranding two third conveying pipes and two fourth conveying pipes obtained by extrusion in the step 3) into a cable, controlling the stranding pitch to be 800-1000 mm, then wrapping two layers of polyester tapes outside, and arranging an optical fiber humidity sensor between the two layers of polyester tapes;
5) extruding a second sheath layer, wherein the concentricity of the second sheath layer is more than or equal to 85%, uniformly placing two optical fiber pressure sensors and two optical fiber temperature sensors during extrusion, coaxially arranging all the optical fiber pressure sensors, and coaxially arranging all the optical fiber temperature sensors to obtain a central tube unit;
6) taking a central pipe unit extruded with a second sheath layer as a central shaft, cabling with a first conveying pipe and four second conveying pipes insulated by extruded TPEE, wherein the cabling pitch is controlled to be 1000-1200 mm, wrapping two layers of polyester tapes after cabling, and arranging an optical fiber humidity sensor between the two layers of polyester tapes;
7) the first sheath layer is wrapped in an extruding mode, the concentricity of the first sheath layer is larger than or equal to 85%, two optical fiber pressure sensors and two optical fiber temperature sensors are evenly placed during the extruding process, all the optical fiber pressure sensors are coaxially arranged, all the optical fiber temperature sensors are coaxially arranged, and finally the required intelligent umbilical cable for marine oil and gas transmission is obtained.
CN202110489891.1A 2021-05-06 2021-05-06 Intelligent umbilical cable for marine oil and gas transmission and processing technology thereof Active CN113192669B (en)

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CN113192669B CN113192669B (en) 2023-09-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114200355A (en) * 2021-11-15 2022-03-18 中国人民解放军海军工程大学 Ship magnetic field measurement system arrangement device and arrangement method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207602265U (en) * 2017-12-06 2018-07-10 青岛汉缆股份有限公司 A kind of ocean engineering special cable
US20200176149A1 (en) * 2018-12-04 2020-06-04 Aker Solutions As Power umbilical with impact protection

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207602265U (en) * 2017-12-06 2018-07-10 青岛汉缆股份有限公司 A kind of ocean engineering special cable
US20200176149A1 (en) * 2018-12-04 2020-06-04 Aker Solutions As Power umbilical with impact protection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114200355A (en) * 2021-11-15 2022-03-18 中国人民解放军海军工程大学 Ship magnetic field measurement system arrangement device and arrangement method thereof
CN114200355B (en) * 2021-11-15 2023-12-15 中国人民解放军海军工程大学 Arrangement device and arrangement method of ship magnetic field measurement system

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