CN107290833A - A kind of twisted cable core oil well optical cable - Google Patents
A kind of twisted cable core oil well optical cable Download PDFInfo
- Publication number
- CN107290833A CN107290833A CN201710679270.3A CN201710679270A CN107290833A CN 107290833 A CN107290833 A CN 107290833A CN 201710679270 A CN201710679270 A CN 201710679270A CN 107290833 A CN107290833 A CN 107290833A
- Authority
- CN
- China
- Prior art keywords
- cable core
- optical fiber
- twisted
- optical
- oil well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 239000003129 oil well Substances 0.000 title claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 238000001465 metallisation Methods 0.000 claims abstract description 17
- 230000007774 longterm Effects 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 3
- 239000001997 corrosion-resisting alloy Substances 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 abstract description 4
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 239000006071 cream Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4417—High voltage aspects, e.g. in cladding
-
- 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
- G02B6/4436—Heat resistant
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention discloses a kind of twisted cable core oil well optical cable; it is characterized in that; including twisted cable core and at least one layer of external metallization protecting tube; the external metallization protecting tube is wrapped in the twisted cable core; the twisted cable core includes at least one fiber unit and some metal monofilaments; some metal monofilaments and at least one fiber unit are twisted together, and the fiber unit includes some optical fiber and optical fiber protection metal pipe, and the optical fiber protection metal pipe is wrapped in some optical fiber.It is an advantage of the invention that：External metallization protecting tube, optical fiber protection metal pipe and metal monofilament are high-strength corrosion-resisting, high pressure resistant steel alloy, thus optical cable can long-term work at high temperature under high pressure；Fiber unit is twisted together with metal monofilament, during long-term work, and light optical fibre in optical cable is evenly distributed, and will not occur sliding and bottom optical fiber packing phenomenon；Cable core is fiber unit and stainless steel monofilament is stranded forms, and enough excess fiber lengths can be produced, with larger tensile strength.
Description
Technical field
The present invention relates to cable configuration technical field, and in particular to a kind of twisted cable core oil well optical cable.
Background technology
Reliability, the ease for use of data transfer due to Monitoring Data, optical fiber sensing technology petroleum gas production,
Exploration Domain is using increasingly extensive.With the depth increase of Oil/gas Well, the temperature environment that optical fiber is born also more and more higher.To adapt to
So high working environment, has the Commercial fibers of different coating to meet different temperature grade needs of work, such as normal temperature
Optical fiber（85°C）, middle temperature optical fiber（150°C）, polyimides optical fiber（200°C, 300°C）, optical fiber of aluminizing（400°C）With plating golden light
It is fine（700°C）Deng.Common oil well optical cable is general by the way of layer of metal protection pipe is further added by outside light unit, light list
Member is concentric structure with protection metal pipe.Optical fiber can be answered by outside stretching during in order to avoid due to metal heated expansion elongation
The length of optical fiber is longer than the length of light unit in power, light unit, and the difference of the length between both is called " excess fiber length ".
The fine cream of hydrogen is inhaled in general filling in light unit, and the effect one of fine cream is the damage that can stop hydrone and hydrogen molecule to optical fiber, separately
One effect is the stop slided to optical fiber in pipe or lifted, and optical fiber is evenly distributed in whole optical cable.Chinese real
With a kind of high-temperature oil well test optical fibre cables are disclosed in new patent specification ZL 200620168047.X, this optical cable is included not
Become rusty steel pipe, steel wire and steel wire clad, is provided with optical fiber in the fine cream wherein in stainless steel tube, stainless steel tube and steel wire are mutually twisted
Close slip of the fine cream in connection, stainless steel tube to optical fiber and play barrier effect, still, because the fine cream of optical fiber is by macromolecule material
Material base oil is mixed with other chemical analysis additives, at present, disclosure satisfy that the high-temperature resistant optical fiber of 300 °C of long-term works is fine
Cream is not developed also.Therefore, when the operating temperature of oil well optical cable is more than 300 °C, fine cream in this optical cable will be because
High temperature and melt, the optical fiber of middle position is not twisted together with remaining optical fiber and steel wire, due to having lacked the stop of fine cream
The effect of lifting and the deadweight reason of optical fiber, during the optical fiber of middle is used for a long time in underground, can produce and fall downwards
Phenomenon, the consequence of this phenomenon is exactly that optical fiber is accumulated in the light unit of oil well optical cable bottom, and remaining length is excessive；And oil well optical cable is leaned on
Excess fiber length reduces even zero in the light unit on top near the ground.Now oil well optical cable is if subjected to abnormal external force, easily makes
Optical fiber into oil well top breaks fine, causes optical fiber sensing system to be stopped.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of twisted cable core oil well optical cable.In twisted cable core, light unit
External diameter it is smaller than the external diameter of conventional oil well optical cable, and twisted cable core is overall in the shape of a spiral, thus fiber unit inner fiber will not
The downward sliding phenomenon of generation.
The technical solution adopted by the present invention is：
A kind of twisted cable core oil well optical cable, it includes twisted cable core and at least one layer of external metallization protecting tube, the external metallization
Protecting tube is wrapped in the twisted cable core, and the twisted cable core includes at least one fiber unit and some metal monofilaments, if
Dry root metal monofilament and at least one fiber unit are twisted together, and the fiber unit includes some optical fiber and optical fiber metal
Protection pipe, the optical fiber protection metal pipe is wrapped in some optical fiber.
Further, in the twisted cable core, wherein a metal monofilament is located at middle, residual metallic monofilament and optical fiber
Unit is stranded on the metal monofilament of middle.
Further, the overall structure in the shape of a spiral of twisted cable core.
Further, the external metallization protecting tube is made by the way of longitudinal tubing-welding.
Further, the optical fiber includes all kinds of sensing optical fiber, and maximum operating temperature is up to 700 DEG C.
Further, the long-term maximum operating temperature of twisted cable core oil well optical cable is up to 700 DEG C, and maximum underground proof pressure is
207MPa。
Further, the material of the external metallization protecting tube, optical fiber protection metal pipe and metal monofilament is corrosion-resistant
Alloy.
Further, the material of the external metallization protecting tube, optical fiber protection metal pipe and metal monofilament be 316L not
Become rusty steel.
The beneficial effects of the invention are as follows：1st, external metallization protecting tube, optical fiber protection metal pipe and metal monofilament are high-strength
Corrosion-resistant, the high pressure resistant steel alloy of degree, thus optical cable can long-term work at high temperature under high pressure；2nd, fiber unit and metal monofilament are stranded
Together, during long-term work, light optical fibre in optical cable is evenly distributed, and will not occur sliding and bottom optical fiber packing phenomenon；3rd, cable core
For fiber unit and metal monofilament is stranded forms, enough excess fiber lengths can be produced, with larger tensile strength.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Wherein：1st, fiber unit, 11, optical fiber, 12, optical fiber protection metal pipe, 2, metal monofilament, 3, external metallization protection
Pipe.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and examples, the invention will be further described, should
Embodiment is only used for explaining the present invention, is not intended to limit the scope of the present invention..
As shown in figure 1, a kind of twisted cable core oil well optical cable, including twisted cable core and one layer of external metallization protecting tube 3, it is outside
Metal protective pipe 3 is coated on outside twisted cable core by the way of longitudinal tubing-welding, and twisted cable core includes a fiber unit 1
With six roots of sensation metal monofilament 2, wherein a metal monofilament 2 is located at middle, remaining five metal monofilaments 2 and fiber unit 1 are stranded
Outside the metal monofilament 2 of middle, fiber unit 1 includes some optical fiber 11 and optical fiber protection metal pipe 12, some optical fiber
11 proper alignments, outer wrapping optical fiber protection metal pipe 12, and optical fiber 11 is that maximum operating temperature is used up to 700 DEG C of all kinds of sensings
Optical fiber, the material of external metallization protecting tube 3, optical fiber protection metal pipe 12 and metal monofilament 2 is 316L stainless steels, optical cable can be made to exist
Long-term work under 700 DEG C of high temperature and 207MPa hyperbaric environment.
Claims (8)
1. a kind of twisted cable core oil well optical cable, it is characterised in that including twisted cable core and at least one layer of external metallization protecting tube, institute
State external metallization protecting tube and be wrapped in the twisted cable core, the twisted cable core includes at least one fiber unit and some gold
Belong to monofilament, some metal monofilaments and at least one fiber unit are twisted together, the fiber unit includes some optical fiber
With optical fiber protection metal pipe, the optical fiber protection metal pipe is wrapped in some optical fiber.
2. a kind of twisted cable core oil well optical cable according to claim 1, it is characterised in that in the twisted cable core, wherein
A piece metal monofilament is located at middle, and residual metallic monofilament and fiber unit are stranded on the metal monofilament of middle.
3. a kind of twisted cable core oil well optical cable according to claim 1 or 2, it is characterised in that the twisted cable core is overall
Structure in the shape of a spiral.
4. a kind of twisted cable core oil well optical cable according to claim 1, it is characterised in that the external metallization protecting tube is adopted
It is made of the mode of longitudinal tubing-welding.
5. a kind of twisted cable core oil well optical cable according to claim 1, it is characterised in that the optical fiber includes all kinds of sensings
With optical fiber, maximum operating temperature is up to 700 DEG C.
6. a kind of twisted cable core oil well optical cable according to claim 1, it is characterised in that long-term maximum operating temperature is reachable
700 DEG C, maximum underground proof pressure is 207MPa.
7. a kind of twisted cable core oil well optical cable according to claim 1, it is characterised in that the external metallization protecting tube,
The material of optical fiber protection metal pipe and metal monofilament is corrosion resisting alloy.
8. a kind of twisted cable core oil well optical cable according to claim 1 or 7, it is characterised in that the external metallization protection
The material of pipe, optical fiber protection metal pipe and metal monofilament is 316L stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679270.3A CN107290833A (en) | 2017-08-10 | 2017-08-10 | A kind of twisted cable core oil well optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679270.3A CN107290833A (en) | 2017-08-10 | 2017-08-10 | A kind of twisted cable core oil well optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290833A true CN107290833A (en) | 2017-10-24 |
Family
ID=60105886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679270.3A Pending CN107290833A (en) | 2017-08-10 | 2017-08-10 | A kind of twisted cable core oil well optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107290833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859487A (en) * | 2022-04-18 | 2022-08-05 | 中天电力光缆有限公司 | Sealed oil well optical cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200983027Y (en) * | 2006-12-13 | 2007-11-28 | 张建华 | A high-temperature oil well testing optical cable |
| CN101231370A (en) * | 2008-02-02 | 2008-07-30 | 深圳市特发信息股份有限公司光缆分公司 | Layer-twisted type optical-cable |
| CN204129286U (en) * | 2014-07-04 | 2015-01-28 | 中国海洋石油总公司 | A kind of for the optical cable under Oil/gas Well |
| CN207249198U (en) * | 2017-08-10 | 2018-04-17 | 中天电力光缆有限公司 | A kind of twisted cable core oil well optical cable |
-
2017
- 2017-08-10 CN CN201710679270.3A patent/CN107290833A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200983027Y (en) * | 2006-12-13 | 2007-11-28 | 张建华 | A high-temperature oil well testing optical cable |
| CN101231370A (en) * | 2008-02-02 | 2008-07-30 | 深圳市特发信息股份有限公司光缆分公司 | Layer-twisted type optical-cable |
| CN204129286U (en) * | 2014-07-04 | 2015-01-28 | 中国海洋石油总公司 | A kind of for the optical cable under Oil/gas Well |
| CN207249198U (en) * | 2017-08-10 | 2018-04-17 | 中天电力光缆有限公司 | A kind of twisted cable core oil well optical cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859487A (en) * | 2022-04-18 | 2022-08-05 | 中天电力光缆有限公司 | Sealed oil well optical cable |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |