CN202650632U - Seven-core logging cable - Google Patents
Seven-core logging cable Download PDFInfo
- Publication number
- CN202650632U CN202650632U CN 201220181455 CN201220181455U CN202650632U CN 202650632 U CN202650632 U CN 202650632U CN 201220181455 CN201220181455 CN 201220181455 CN 201220181455 U CN201220181455 U CN 201220181455U CN 202650632 U CN202650632 U CN 202650632U
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- core
- wire
- center
- cable
- polyvinyl chloride
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- Expired - Fee Related
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Abstract
The utility model discloses a seven-core logging cable. The cable core of the cable is formed by twisting a coaxial wire, two high current wires, four service wires and three load-bearing reinforced cores. A polyester thin film and an outer sheath are arranged on the outside of the cable core successively. A seven-strand twisted annealed copper conductor is arranged at the center of the coaxial wire, and the outer layer of the coaxial wire is provided with a low density polyethylene insulating layer, a bare copper wire braided shielding layer and a central polyester thin film successively. A multiple-stand bunched tinned copper wire is arranged at the center of each high current wire, and a polyvinyl chloride insulating layer is arranged on the outer layer of each high current wire. A copper and steel twisted core is arranged at the center of each service wire, and a polyvinyl chloride insulating layer is arranged on the outer layer of each service wire. A multiple-stand twisted aramid is arranged at the center of each load-bearing reinforced core, and a polyvinyl chloride protective layer is arranged on the outer layer of each load-bearing reinforced core. The aramid material is used as the load-bearing reinforced cores, so the weight is greatly reduced and the flexibility of the cable is improved compared with the use of the steel wire or other metal materials, and the breaking force of the aramid material is enough to meet the application requirements at the same time.
Description
Technical field:
The utility model relates to a kind of cable, specifically a kind of seven core logging cables that are specifically designed to various data parameters under the measuring well.
Background technology:
Along with developing rapidly of China's economy, also more and more for the demand of the resources such as oil, coal, the quantity of detecting shaft increases year by year.Logging cable is under the prerequisite of ensuring the quality of products, and stretching resistance is the bigger the better, and volume is the smaller the better.This just so that, in the selection of conductor and load-bearing strengthening core, both considered the electric property requirement, guarantee again the mechanical performance requirement.
Summary of the invention:
For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of seven core logging cables, it is reasonable in design, bearing tension is large, lightweight, mechanical strength is high, external diameter is little, and its Main Function is to carry various downhole probes, transmit various signals between ground control system and the downhole instrument, obtain the depth location of down-hole information etc.
The utility model technical solution problem adopts following technical scheme:
A kind of seven core logging cables, cable conductor is provided with polyester film and oversheath successively by a coaxial line, two large electric current lines, four service lines and three load-bearing strengthening core twisted synthesizing cables outside described cable core.
Described coaxial line center is provided with seven strands of stranded tough copper conductors, and skin is provided with low density polyethylene (LDPE) insulating barrier, bare copper wire woven shield and center polyester film successively; Described large electric current line center is multiply bundle strand tinned wird, and skin is polyvinyl chloride insulation; Described service line center is the mixed twisted wire core of copper steel, and skin is the polyvinyl chloride insulation layer; Described load-bearing strengthening core center is the strands aramid fiber, and skin is the polyvinyl chloride sheath.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the load-bearing strengthening core adopts aramid fiber material, compares with using steel wire or other metal materials, and weight alleviates greatly, and the soft degree of cable has also increased, and simultaneously, the pull-off force of aramid fiber is enough to satisfy instructions for use.
2, service line adopts the mixed twisted wire core of copper steel, and the reliability of product is improved.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 tough copper conductor, 2 polyethylene layers, 3 screens, 4 center polyester films, 5 polyester films, 6 oversheaths, 7 tinned wirds, 8 polyvinyl chloride insulations, 9 copper steels mix twisted wire core, 10 polyvinyl chloride insulation layers, 11 aramid fibers, 12 polyvinyl chloride sheaths.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: referring to Fig. 1, the seven core logging cables of the present embodiment, cable conductor is provided with polyester film 5 and oversheath 6 successively by a coaxial line, two large electric current lines, four service lines and three load-bearing strengthening core twisted synthesizing cables outside described cable core.The coaxial line center is provided with seven strands of stranded tough copper conductors 1, and skin is provided with low density polyethylene (LDPE) insulating barrier 2, bare copper wire woven shield 3 and center polyester film 4 successively; Described large electric current line center is multiply bundle strand tinned wird 7, and skin is polyvinyl chloride insulation 8; Described service line center is the mixed twisted wire core 9 of copper steel, and skin is polyvinyl chloride insulation layer 10; Described load-bearing strengthening core center is strands aramid fiber 11, and skin is polyvinyl chloride sheath 12.
The cable of the present embodiment makes by following technical process: the stranded seven strands of tough copper stranded conductors of accurate stranding machine extrude polyethylene layer 2 as the conductor of coaxial line at conductor external application normal temperature extrusion equipment, weave successively bare copper wire screen 3, wrapped polyester film 4; The stranded multiply tinned wird of accurate stranding machine extrudes polyvinyl chloride insulation 8 as large electric current line center conductor with the normal temperature extrusion equipment; With seven regular load-bearing strengthening cores that are twisted into of 1680dtex aramid fiber, extrude polyvinyl chloride sheath 12 with the normal temperature extrusion equipment with stranding machine; A coaxial line, two large electric current lines, four service lines and three load-bearing strengthening cores are arranged in order carry out stranding on the cabler and with the wrapped polyester film 5 of machine, extrude oversheath 6 at cable core external application normal temperature extruder.
Claims (2)
1. a core logging cable is characterized in that, cable conductor is provided with polyester film (5) and oversheath (6) successively by a coaxial line, two large electric current lines, four service lines and three load-bearing strengthening core twisted synthesizing cables outside described cable core.
2. a kind of seven core logging cables according to claim 1, it is characterized in that, described coaxial line center is provided with seven strands of stranded tough copper conductors (1), and skin is provided with low density polyethylene (LDPE) insulating barrier (2), bare copper wire woven shield (3) and center polyester film (4) successively; Described large electric current line center is multiply bundle strand tinned wird (7), and skin is polyvinyl chloride insulation (8); Described service line center is the mixed twisted wire core (9) of copper steel, and skin is polyvinyl chloride insulation layer (10); Described load-bearing strengthening core center is strands aramid fiber (11), and skin is polyvinyl chloride sheath (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181455 CN202650632U (en) | 2012-04-25 | 2012-04-25 | Seven-core logging cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181455 CN202650632U (en) | 2012-04-25 | 2012-04-25 | Seven-core logging cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650632U true CN202650632U (en) | 2013-01-02 |
Family
ID=47419699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220181455 Expired - Fee Related CN202650632U (en) | 2012-04-25 | 2012-04-25 | Seven-core logging cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405507A (en) * | 2015-12-08 | 2016-03-16 | 江苏荣宜电缆有限公司 | Reinforced high-power optical fibre composite control cable |
| CN105672979A (en) * | 2015-12-28 | 2016-06-15 | 西安弘传科技开发有限责任公司 | Access method of seven-core armoured cable for well logging |
-
2012
- 2012-04-25 CN CN 201220181455 patent/CN202650632U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405507A (en) * | 2015-12-08 | 2016-03-16 | 江苏荣宜电缆有限公司 | Reinforced high-power optical fibre composite control cable |
| CN105672979A (en) * | 2015-12-28 | 2016-06-15 | 西安弘传科技开发有限责任公司 | Access method of seven-core armoured cable for well logging |
| CN105672979B (en) * | 2015-12-28 | 2018-05-15 | 西安弘传科技开发有限责任公司 | The cut-in method of 7 core armored cables of well logging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150425 |
|
| EXPY | Termination of patent right or utility model |