CN210110421U - Photoelectric composite detection cable - Google Patents
Photoelectric composite detection cable Download PDFInfo
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- CN210110421U CN210110421U CN201921445858.3U CN201921445858U CN210110421U CN 210110421 U CN210110421 U CN 210110421U CN 201921445858 U CN201921445858 U CN 201921445858U CN 210110421 U CN210110421 U CN 210110421U
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- optical fiber
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Abstract
The utility model relates to the technical field of cables, a photoelectric composite detection cable. The cable comprises an armor layer, an inner protection layer, a cable core and a stainless steel tube optical fiber unit; the stainless steel tube optical fiber unit comprises a stainless steel tube, a single-mode medium-temperature optical fiber and a multi-mode medium-temperature optical fiber, wherein at least one single-mode medium-temperature optical fiber and at least one multi-mode medium-temperature optical fiber are arranged in the stainless steel tube, and a filling layer is arranged between the stainless steel tube and the single-mode medium-temperature optical fiber and between the stainless steel tube and the multi-mode medium-. The utility model discloses rational in infrastructure, convenient to use is equipped with an at least single mode medium temperature optic fibre and an at least multimode medium temperature optic fibre in nonrust steel pipe, can solve the bottleneck of present oil gas exploration effectively, and the transmission frequency bandwidth of optic fibre can expand 1.25GHz, realizes high-speed transmission, can realize whole section well data harvesting moreover, has improved the efficiency of gathering greatly. The optical cable can be laid for a long time in a large scale, is suitable for construction under different well conditions, and has higher underground safety factor.
Description
Technical Field
The utility model relates to the technical field of cables, a photoelectric composite detection cable.
Background
At present, electrical signal transmission is adopted for geological exploration and well logging, the transmission frequency bandwidth is within 400kHz, the efficiency is low, the inter-stage distance is large, generally 10-20 m, the stage number is limited, and therefore the construction time is long, the economic benefit is low, and a large safety risk exists.
Disclosure of Invention
The utility model provides a photoelectric composite detection cable has overcome above-mentioned prior art not enough, and it can effectively solve current cable engineering time longer, and economic benefits is low and there is the problem of great safety risk.
A photoelectric composite detection cable comprises an armor layer, an inner protective layer, a wire core and a stainless steel tube optical fiber unit; the stainless steel tube optical fiber unit comprises a stainless steel tube, a single-mode medium-temperature optical fiber and a multi-mode medium-temperature optical fiber, wherein at least one single-mode medium-temperature optical fiber and at least one multi-mode medium-temperature optical fiber are arranged in the stainless steel tube, a filling layer is arranged between the stainless steel tube and the single-mode medium-temperature optical fiber and the multi-mode medium-temperature optical fiber, an inner protection layer is arranged on the outer side of the wire core and the stainless steel tube optical fiber unit.
Two single-mode medium-temperature optical fibers and two multi-mode medium-temperature optical fibers are arranged in the stainless steel pipe.
The filling layer is an optical cable ointment filling layer.
The wire core comprises an insulating layer and soft copper wires, and the soft copper wires are stranded in the insulating layer.
The inner protective layer is a modified polypropylene inner protective layer, and the armor layer is formed by twisting an inner layer of galvanized iron wire and an outer layer of galvanized iron wire together.
The utility model discloses rational in infrastructure, convenient to use is equipped with an at least single mode medium temperature optic fibre and an at least multimode medium temperature optic fibre in nonrust steel pipe, is applied to the oil exploration field with fiber sensing technique, can solve present oil gas exploration's bottleneck effectively, and the transmission frequency bandwidth of optic fibre can expand to 1.25GHz, realizes high-speed transmission, can realize whole section well data harvesting moreover, has improved the efficiency of gathering greatly. The optical cable can be laid for a long time in a large scale, is suitable for construction under different well conditions, and has higher underground safety factor.
Drawings
Fig. 1 is a schematic view of the sectional structure of the front view of the present invention.
The codes in the figure are respectively: the composite material comprises an armor layer 1, an inner protective layer 2, an insulating layer 3, a stainless steel pipe 4, a single-mode medium-temperature optical fiber 5, a multi-mode medium-temperature optical fiber 6, a filling layer 7 and a soft copper wire 8.
Detailed Description
As shown in the attached figure 1, the photoelectric composite detection cable comprises an armor layer 1, an inner protective layer 2, a wire core and a stainless steel tube optical fiber unit; the stainless steel tube optical fiber unit comprises a stainless steel tube 4, a single-mode medium-temperature optical fiber 5 and a multi-mode medium-temperature optical fiber 6, wherein at least one single-mode medium-temperature optical fiber 5 and at least one multi-mode medium-temperature optical fiber 6 are arranged in the stainless steel tube 4, a filling layer 7 is arranged between the stainless steel tube 4 and the single-mode medium-temperature optical fiber 5 and the multi-mode medium-temperature optical fiber 6, an inner protection layer 2 is arranged on the outer side of the electric wire core and the stainless steel tube optical fiber unit, and. The optical fiber sensing technology is applied to the field of oil exploration, the bottleneck of oil and gas exploration at present can be effectively solved, the transmission frequency bandwidth of the optical fiber can be expanded to 1.25GHz, high-speed transmission is realized, data recovery of a whole section of well can be realized, and the recovery efficiency is greatly improved. The optical cable can be laid for a long time in a large scale, is suitable for construction under different well conditions, and has higher underground safety factor.
As shown in figure 1, two single-mode medium-temperature optical fibers 5 and two multi-mode medium-temperature optical fibers 6 are arranged in a stainless steel tube 4. According to requirements, two single-mode medium-temperature optical fibers 5 and two multi-mode medium-temperature optical fibers 6 are arranged in the stainless steel tube 4. Two single-mode medium-temperature optical fibers 5 and two multi-mode medium-temperature optical fibers 6, wherein the extra length of the optical fibers is more than 3 per mill; the two single-mode medium-temperature optical fibers 5 are respectively 1310nm single-mode optical fibers and 1550nm single-mode optical fibers, the attenuation index of the 1310nm single-mode optical fibers is less than 0.40dB/km, and the attenuation index of the 1550nm single-mode optical fibers is less than 0.25 dB/km; the two multimode medium-temperature optical fibers 6 are respectively 850nm multimode optical fibers and 1300nm multimode optical fibers, the attenuation index of the 850nm multimode optical fibers is less than 3.5dB/km, and the attenuation index of the 1300nm multimode optical fibers is less than 1.0 dB/km. The temperature resistance range of the optical fiber is-40-150 ℃.
As shown in fig. 1, the filling layer 7 may be a cable ointment filling layer according to actual needs.
As shown in fig. 1, the wire core comprises an insulating layer 3 and soft copper wires 8, and a plurality of soft copper wires 8 are twisted in the insulating layer 3. The wire core is well known in the art and other wire cores may be used as disclosed.
According to the requirement, the inner protective layer 2 is a modified polypropylene inner protective layer, so that the temperature resistance range of the product can be ensured to be-30-150 ℃; the armor layer 1 is formed by twisting an inner layer of galvanized iron wire and an outer layer of galvanized iron wire together.
Claims (8)
1. A photoelectric composite detection cable is characterized by comprising an armor layer, an inner protective layer, a wire core and a stainless steel tube optical fiber unit; the stainless steel tube optical fiber unit comprises a stainless steel tube, a single-mode medium-temperature optical fiber and a multi-mode medium-temperature optical fiber, wherein at least one single-mode medium-temperature optical fiber and at least one multi-mode medium-temperature optical fiber are arranged in the stainless steel tube, a filling layer is arranged between the stainless steel tube and the single-mode medium-temperature optical fiber and the multi-mode medium-temperature optical fiber, an inner protection layer is arranged on the outer side of the wire core and the stainless steel tube optical fiber unit.
2. The photoelectric composite detecting cable of claim 1, wherein two single-mode medium-temperature optical fibers and two multi-mode medium-temperature optical fibers are disposed in the stainless steel tube.
3. The photoelectric composite detection cable of claim 1 or 2, wherein the filling layer is a cable ointment filling layer.
4. The photoelectric composite detection cable of claim 1 or 2, wherein the wire core comprises an insulating layer and a soft copper wire, and the plurality of soft copper wires are stranded in the insulating layer.
5. The photoelectric composite detection cable of claim 3, wherein the wire core comprises an insulating layer and soft copper wires, and the soft copper wires are stranded in the insulating layer.
6. The photoelectric composite detection cable according to claim 1, 2 or 5, wherein the inner sheath is a modified polypropylene inner sheath, and the armor layer is formed by twisting an inner layer and an outer layer of galvanized iron wires together.
7. The photoelectric composite detection cable of claim 3, wherein the inner sheath is a modified polypropylene inner sheath, and the armor layer is formed by twisting an inner layer and an outer layer of galvanized iron wires together.
8. The photoelectric composite detection cable of claim 4, wherein the inner sheath is a modified polypropylene inner sheath, and the armor layer is formed by twisting an inner layer and an outer layer of galvanized iron wires together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921445858.3U CN210110421U (en) | 2019-09-02 | 2019-09-02 | Photoelectric composite detection cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921445858.3U CN210110421U (en) | 2019-09-02 | 2019-09-02 | Photoelectric composite detection cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110421U true CN210110421U (en) | 2020-02-21 |
Family
ID=69531912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921445858.3U Active CN210110421U (en) | 2019-09-02 | 2019-09-02 | Photoelectric composite detection cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110421U (en) |
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2019
- 2019-09-02 CN CN201921445858.3U patent/CN210110421U/en active Active
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