CN113031177B - Super-sealed distributed optical fiber load-bearing detection cable - Google Patents
Super-sealed distributed optical fiber load-bearing detection cable Download PDFInfo
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- CN113031177B CN113031177B CN202110192589.XA CN202110192589A CN113031177B CN 113031177 B CN113031177 B CN 113031177B CN 202110192589 A CN202110192589 A CN 202110192589A CN 113031177 B CN113031177 B CN 113031177B
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- resistant
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
Abstract
The application discloses a super-sealed distributed optical fiber load-bearing detection cable which sequentially comprises an optical fiber cable core, a first inner protective layer, a first armor layer, a second inner protective layer, a second armor layer and a third inner protective layer from inside to outside, wherein the optical fiber cable core comprises a stainless steel pipe and a plurality of optical fibers positioned in the stainless steel pipe; an outer sheath is arranged outside the third inner sheath. The cable of this application barrier propterty is good, job stabilization.
Description
Technical Field
The application relates to the field of cables, in particular to a super-sealed distributed optical fiber load-bearing detection cable.
Background
A load-bearing detection cable belongs to a cable for electrical equipment and mainly has the functions of bearing tension, supplying power to a system, transmitting signals and controlling depth. The device is used for logging, perforating, coring and other operations of various oil wells and gas wells. Wireline logging is used to detect various parameters downhole. The load-bearing detection cable has a severe use environment, and particularly under the scene of using the optical fiber, the optical fiber is more fragile relative to a metal conductor, so that more protection measures need to be provided for the cable, and higher requirements on the performances of tensile resistance, pressure resistance, sealing, breakage prevention and the like need to be provided.
Disclosure of Invention
The purpose of the invention is as follows: the application aims to overcome the defects of the prior art and provides a super-sealed distributed optical fiber load-bearing detection cable.
The technical scheme is as follows: a super-sealed distributed optical fiber load-bearing detection cable sequentially comprises an optical fiber cable core, a first inner protection layer, a first armor layer, a second inner protection layer, a second armor layer and a third inner protection layer from inside to outside, wherein the optical fiber cable core comprises a stainless steel pipe and a plurality of optical fibers positioned in the stainless steel pipe; an outer sheath is arranged outside the third inner sheath.
Furthermore, optical fiber ointment is arranged in the stainless steel pipe, and the number of the optical fibers in the stainless steel pipe is more than or equal to 4.
Further, the stainless steel tube contains multimode optical fiber and single mode optical fiber.
Further, the third inner protection layer is provided with a first accommodating groove extending along the length direction of the cable and a second accommodating groove extending along the length direction of the cable, a first tensile rope, a second tensile rope and a plurality of pressure-resistant units are arranged between the third inner protective layer and the outer protective layer, the plurality of pressure-resistant units are arranged in a row along the length direction of the cable, the pressure-resistant unit comprises two elastic pressure-resistant strips and an arc-surface-shaped buffer sheet which is positioned between the two elastic pressure-resistant strips and is connected with the two elastic pressure-resistant strips, a sleeve is also connected with each elastic pressure-resistant strip, one sleeve of the two sleeves of each pressure-resistant unit is positioned at the first accommodating groove, the other sleeve is positioned at the second accommodating groove, the first tensile rope passes through all the sleeves at the first accommodating groove, and the second tensile rope passes through all the sleeves at the second accommodating groove; the protruding directions of the buffer sheets of two adjacent pressure-resistant units are different.
Further, the elastic pressure-resistant strip is made of a rubber material; the sleeve is made of rubber materials, nylon materials or plastics; the buffer sheet is made of rubber materials, nylon materials or plastics.
Further, the length of the pressure-resistant unit is less than 1 meter, preferably less than 0.5 meter.
Further, the radian of the buffer sheet is larger than 165 degrees and smaller than 180 degrees; the cross sections of the elastic pressure-resistant strip and the sleeve are both circular, and the diameter of the elastic pressure-resistant strip is larger than that of the sleeve.
Further, the first armor layer and the second armor layer are both steel wire armor layers.
Further, the first inner sheath, the second inner sheath, and the third inner sheath are each made of a polyethylene material.
Has the advantages that: the load-bearing detection cable provided by the application contains a plurality of optical fibers, is convenient to transmit signals, and can be protected in a multi-layer manner due to the fact that the load-bearing detection cable works in a severe environment, the sealing performance and the mechanical performance of the cable are guaranteed, better protection is provided, and stable work of the cable is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a cable;
FIG. 2 is a schematic sectional view taken along line A-A';
FIG. 3 is a schematic sectional view taken along the direction B-B'.
Detailed Description
Reference numerals: 1, an optical fiber; 2, stainless steel pipes; 3 a first inner sheath; 4 a first armor layer; 5 a second inner sheath layer; 6 a second armor layer; 7 a third inner sheath layer; 8 an outer sheath; 11 a first tensile strand; 12 a second withdrawal cord; 13.1 elastic pressure-resistant strips; 13.2 buffer sheet; 13.3 casing.
As shown in the figure: a super-sealed distributed optical fiber load-bearing detection cable sequentially comprises an optical fiber cable core, a first inner protection layer 3, a first armor layer 4, a second inner protection layer 5, a second armor layer 6 and a third inner protection layer 7 from inside to outside, wherein the optical fiber cable core comprises a stainless steel pipe 2 and a plurality of optical fibers 1 positioned in the stainless steel pipe 2; the third inner sheath layer 7 has an outer sheath 8 thereon. The stainless steel tube 2 is internally provided with optical fiber ointment, and the number of the optical fibers 1 in the stainless steel tube 2 is more than or equal to 4. The stainless steel tube 2 contains multimode optical fibers and single-mode optical fibers.
The third inner sheath layer 7 has a first receiving groove extending along the length direction of the cable and a second receiving groove extending along the length direction of the cable, a first tensile rope 11, a second tensile rope 12 and a plurality of pressure-resistant units are further arranged between the third inner protective layer 7 and the outer protective layer 8, the plurality of pressure-resistant units are arranged in a row along the length direction of the cable, the pressure-resistant unit comprises two elastic pressure-resistant strips 13.1 and an arc-surface-shaped buffer sheet 13.2 which is positioned between the two elastic pressure-resistant strips 13.1 and is connected with the two elastic pressure-resistant strips 13.1, a sleeve 13.3 is also connected at each elastic pressure-resistant strip 13.1, one sleeve 13.3 of the two sleeves 13.3 of each pressure-resistant unit is positioned at the first accommodating groove, the other sleeve 13.3 is positioned at the second accommodating groove, the first tensile rope 11 passes through all the sleeves 13.3 at the first accommodating groove, and the second tensile rope 12 passes through all the sleeves 13.3 at the second accommodating groove; the protruding directions of the buffer pieces 13.2 of two adjacent pressure-resistant units are different. The elastic pressure-resistant strip 13.1 is made of rubber material; the sleeve 13.3 is made of rubber material, nylon material or plastic; the buffer sheet 13.2 is made of rubber material, nylon material or plastic. The length of the pressure-resistant unit is less than 1 meter, preferably less than 0.5 meter. The radian of the buffer sheet 13.2 is larger than 165 degrees and smaller than 180 degrees; the sections of the elastic pressure-resistant strip 13.1 and the sleeve 13.3 are both circular, and the diameter of the elastic pressure-resistant strip 13.1 is larger than that of the sleeve 13.3. The first armor layer 4 and the second armor layer 6 are both steel wire armor layers. The first inner sheath layer 3, the second inner sheath layer 5 and the third inner sheath layer 7 are all made of polyethylene material.
As shown in the figure, the cable optical fiber is located at the center of the cable, 3 inner protection layers and 2 armor layers are wrapped outside the optical fiber, so that the optical fiber is good in protection performance and not prone to damage, a pressure-resistant unit and a tensile rope are additionally arranged outside a third inner protection layer, two tensile ropes provide better tensile effect, a plurality of pressure-resistant units are additionally arranged, each pressure-resistant unit wraps half of the cable, protruding directions of buffer sheets of two adjacent pressure-resistant units are opposite, and therefore when extrusion force in the C-C direction is applied to the cable, buffering is provided by the buffer sheets as shown in figure 3; when the cable is subjected to the extrusion force in the D-D direction, the two elastic pressure-resistant strips provide buffering, so that although only one pressure-resistant unit is used at any section of the cable, the pressure-resistant effect in the whole direction can be still obtained, half of materials of the pressure-resistant units are saved, and the opposite arrangement directions of the two adjacent pressure-resistant units are mainly considered to realize the arrangement, and the weight of the cable is uniformly distributed in the whole length. The utility model provides a cable is in the extrusion molding in the third after the sheath, will make and finish and wear the whole that first stretch-proofing rope, the second of line resisted stay cord and a plurality of withstand voltage unit and constitute, install outside the sheath is protected to the third, extrusion molding oversheath shaping again after that.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (9)
1. A super-sealed distributed optical fiber load-bearing detection cable is characterized by sequentially comprising an optical fiber cable core, a first inner protective layer, a first armor layer, a second inner protective layer, a second armor layer and a third inner protective layer from inside to outside, wherein the optical fiber cable core comprises a stainless steel pipe and a plurality of optical fibers positioned in the stainless steel pipe; an outer sheath is arranged outside the third inner sheath; the cable comprises a third inner protection layer, a third pressure-resistant unit and a third tensile rope, wherein the third inner protection layer is provided with a first accommodating groove extending along the length direction of the cable and a second accommodating groove extending along the length direction of the cable, a first tensile rope, a second tensile rope and a plurality of pressure-resistant units are further arranged between the third inner protection layer and the outer sheath, the plurality of pressure-resistant units are arranged in a row along the length direction of the cable, each pressure-resistant unit comprises two elastic pressure-resistant strips and an arc-surface-shaped buffer sheet which is arranged between the two elastic pressure-resistant strips and connected with the two elastic pressure-resistant strips, each elastic pressure-resistant strip is further connected with a sleeve, one sleeve of the two sleeves of each pressure-resistant unit is arranged at the first accommodating groove, the other sleeve is arranged at the second accommodating groove, the first tensile rope penetrates through all sleeves at the first accommodating groove, and the second tensile rope penetrates through all sleeves at the second accommodating groove; the protruding directions of the buffer sheets of two adjacent pressure-resistant units are different.
2. The super-sealed distributed optical fiber load-bearing detection cable according to claim 1, wherein the stainless steel tube is internally provided with optical fiber ointment, and the number of optical fibers in the stainless steel tube is greater than or equal to 4.
3. The hermetically sealed distributed fiber optic load bearing exploration cable of claim 1, wherein said stainless steel tube contains multimode optical fibers and single mode optical fibers.
4. The super-sealed distributed optical fiber load bearing exploration cable according to claim 1, wherein said resilient pressure-resistant strip is made of a rubber material; the sleeve is made of rubber materials, nylon materials or plastics; the buffer sheet is made of rubber materials, nylon materials or plastics.
5. The super-sealed distributed optical fiber load-bearing detection cable according to claim 1, wherein the length of the pressure-resistant unit is less than 1 meter.
6. The super-sealed distributed optical fiber load-bearing detection cable according to claim 5, wherein the length of the pressure-resistant unit is less than 0.5 m.
7. The super-sealed distributed optical fiber load-bearing detection cable according to claim 1, wherein the radian of the buffer sheet is greater than 165 degrees and less than 180 degrees; the cross sections of the elastic pressure-resistant strip and the sleeve are both circular, and the diameter of the elastic pressure-resistant strip is larger than that of the sleeve.
8. The hermetically sealed distributed fiber optic load bearing probe cable of claim 1, wherein the first armor layer and the second armor layer are both steel wire armor layers.
9. The super-sealed distributed fiber optic load bearing exploration cable of claim 1, wherein said first inner sheath, second inner sheath, and third inner sheath are all made of polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110192589.XA CN113031177B (en) | 2021-02-20 | 2021-02-20 | Super-sealed distributed optical fiber load-bearing detection cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110192589.XA CN113031177B (en) | 2021-02-20 | 2021-02-20 | Super-sealed distributed optical fiber load-bearing detection cable |
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| CN113031177A CN113031177A (en) | 2021-06-25 |
| CN113031177B true CN113031177B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110192589.XA Active CN113031177B (en) | 2021-02-20 | 2021-02-20 | Super-sealed distributed optical fiber load-bearing detection cable |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448903A (en) * | 2014-09-15 | 2017-02-22 | 周杰 | Photoelectric composite cable laid on seabed to transmit optical signal and power |
| CN207488580U (en) * | 2017-12-01 | 2018-06-12 | 德阳汇川科技有限公司 | A kind of double jacketed cables of stainless steel tube wire armoring |
| CN207623578U (en) * | 2017-11-24 | 2018-07-17 | 江苏维尔兰电缆有限公司 | A kind of H2S gas wells Special seal resistance to compression high-temperature resistant optical fiber charge bearing detecting cable |
| CN108878041A (en) * | 2018-07-12 | 2018-11-23 | 扬州劳根电气有限公司 | A kind of intelligent measuring apparatus instruments and meters charge bearing detecting cable |
| CN111354510A (en) * | 2020-02-14 | 2020-06-30 | 江苏华能电缆股份有限公司 | Distributed sensing load-bearing detection cable |
-
2021
- 2021-02-20 CN CN202110192589.XA patent/CN113031177B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448903A (en) * | 2014-09-15 | 2017-02-22 | 周杰 | Photoelectric composite cable laid on seabed to transmit optical signal and power |
| CN207623578U (en) * | 2017-11-24 | 2018-07-17 | 江苏维尔兰电缆有限公司 | A kind of H2S gas wells Special seal resistance to compression high-temperature resistant optical fiber charge bearing detecting cable |
| CN207488580U (en) * | 2017-12-01 | 2018-06-12 | 德阳汇川科技有限公司 | A kind of double jacketed cables of stainless steel tube wire armoring |
| CN108878041A (en) * | 2018-07-12 | 2018-11-23 | 扬州劳根电气有限公司 | A kind of intelligent measuring apparatus instruments and meters charge bearing detecting cable |
| CN111354510A (en) * | 2020-02-14 | 2020-06-30 | 江苏华能电缆股份有限公司 | Distributed sensing load-bearing detection cable |
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| Publication number | Publication date |
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| CN113031177A (en) | 2021-06-25 |
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