CN104793304B - The fixing means and cable configuration of optical cable fiber port - Google Patents
The fixing means and cable configuration of optical cable fiber port Download PDFInfo
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- CN104793304B CN104793304B CN201510189137.0A CN201510189137A CN104793304B CN 104793304 B CN104793304 B CN 104793304B CN 201510189137 A CN201510189137 A CN 201510189137A CN 104793304 B CN104793304 B CN 104793304B
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- outer tube
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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
- G02B6/4479—Manufacturing methods of optical cables
-
- 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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention relates to a kind of fixing means and cable configuration of optical cable fiber port.The fixing means of optical cable fiber port includes step：S1, from the port of optical cable by the end of inner tube to outer tube direction bend, formed flange；S2, the port gluing to optical cable, glue stick on outer tube inner side and end face, the fine cream in optical cable and be wrapped in optical fiber periphery and by flange cladding wherein；The end of optical fiber is located at outside glue；S3, by the end of outer tube to inner tube direction bend, formed close up；S4, glue solidify to form sealant layer in the port of optical cable.The present invention sets sealant layer by optical cable port, inner tube and optical fiber are fixed in the closing in of the flange and outer tube of cooperation optical cable inner tube, optical cable inner tube is prevented to be subjected to displacement, ensure that fiber lengths are constant, so as to the continuous junction fiber lengths of optical fiber do not change, prevent the fine cream of cable interior from flowing out simultaneously, so that sealing when ensureing optical cable continued access is transmitted with optical communication and Fibre Optical Sensor performance is not influenceed by continued access.
Description
Technical field
The present invention relates to a kind of optical cable port optical fiber fixing method, more particularly to a kind of optical cable of Oil/gas Well underground optical cable
The fixing means and cable configuration of fiber port.
Background technology
Oil/gas Well is to carry out the important component in underground monitoring using fiber optic monitoring technology at present with underground optical cable, it
Downhole sensor can be not only connected, enters transmitting-receiving, the communication of traveling optical signal, while the optical fiber oneself in optical cable can be as sensing
Device carries out multi-signal monitoring (such as temperature, strain).
General oil well optical cable is that the one kind being made up of optical cable outer layer, optical cable intermediate layer, optical cable internal layer fibre cream and optical fiber is more
The cable configuration of layer, is that just will be attached or held with the sensor of front end after cable cut with pipe cutter when using
Head sealing.Due to there is no any anti-channeling measure or structure between three-decker in optical cable, when optical cable is frequently winding and unreeling
During, play each other can occur between the multilayer of optical cable, cause optical cable internal layer stretched out relative to optical cable end face or
Indentation.When optical fiber outer tube is fixed, the indentation of optical cable inner tube can produce pulling force to the sensor for being connected to inner fiber front end, so that
Influence the performance of sensor or cause the solder joint of optical fiber to be broken；Can make between sensor and optical cable when optical cable inner tube is stretched out
Fibre-optical bending degree become big, can so increase the loss of Optical Fiber Transmission, sensor and optical cable are also resulted in when flexibility is very big
It is broken at the solder joint of inner fiber.
Further, since there is the very big fine cream of viscosity in optical cable inner tube, there is play each other between the multilayer of optical cable
Also cause optical fiber when optical cable is unreeled and is wound in optical cable inner tube can be extended or retracted relative to optical cable end face.In addition,
Because optical cable is usually vertically to use, length is from hundreds of meters to several kms；Underground is usually HTHP situation.Work as temperature
The viscosity of fine cream during rising in optical cable can also be reduced, and the sensor of front end will be such as flowed to without any safeguard measure fibre cream
Place, causes the reduction of sensor performance or failure.
The content of the invention
The invention solves the problems that a technical problem be, there is provided one kind prevents optical cable inner tube and the mutual play of optical fiber, prevents
The fixing means of the optical cable fiber port of fine cream outflow.
The invention solves the problems that another technical problem be, there is provided will not mutually play, fibre between a kind of inner tube and optical fiber
Cream will not be from the cable configuration of port outflow.
The present invention solves the technical scheme that is used of one technical problem：A kind of fixation side of optical cable fiber port is provided
Method, comprises the following steps：
S1, from the port of optical cable by the end of inner tube to outer tube direction bend, formed flange；
S2, the port gluing to the optical cable, on the fine cream that glue sticks in outer tube inner side and end face, optical cable,
And be wrapped in optical fiber periphery and coat wherein the flange；The end of the optical fiber is located at outside the glue；
S3, by the end of the outer tube to said inner tube direction bend, formed close up；
S4, the glue solidify to form sealant layer in the port of the optical cable.
Preferably, it is spaced between the flange and the outer tube in the step S1；
In the step S2, during gluing, glue from the interval between said inner tube and outer tube filling to institute
State on the middle end surfaces of optical cable.
Preferably, in the step S2, the glue is using the resistant to elevated temperatures high intensity with optical fiber, fine cream and metals compatible
Glue.
Preferably, in the step S3, the angle that the end of the outer tube is bent to said inner tube direction less than 90 °, and
After the end bending of the outer tube gap is left between the flange.
Preferably, in the step S4, the glue is cured to form institute using spontaneous curing or at 80-100 DEG C
State sealant layer.
Preferably, also include after the step S3：
S3-1, glue that the is optical cable port is unnecessary or overflowing are removed.
The present invention solves the technical scheme that is used of its another technical problem：A kind of cable configuration, including optical cable are provided
And the sealant layer of the optical cable port is sticked to, the optical cable includes outer tube, the inner tube being arranged in outer tube, is located in
Optical fiber in said inner tube and the fine cream being filled in said inner tube；
The end of said inner tube is provided with flange, and the end of the outer tube is through being bent to form closing in；The sealant layer is located at
On the outer tube end inner side and end face and the fine cream, the optical fiber periphery is wrapped in, and the flange is coated it
In；The end of the optical fiber passes the sealant layer.
Preferably, gap is left between the flange and the outer tube end.
Preferably, the angle of the axial direction bending of the relatively described outer tube in the end of the outer tube is less than 90 °.
Preferably, the optical cable also includes the intervalve being arranged between the outer tube and inner tube, and the flange is located at institute
State the end face side of intervalve；The sealant layer is also adhered on the end face of the intervalve.
Beneficial effects of the present invention：Sealant layer is set by optical cable port, coordinate the flange and outer tube of optical cable inner tube
Closing in inner tube and optical fiber are fixed, prevent optical cable inner tube to be subjected to displacement, it is ensured that fiber lengths are constant, so that the continuous junction of optical fiber
Fiber lengths do not change, while prevent the fine cream of cable interior from flowing out, so that sealing and light when ensureing optical cable continued access
Communication transfer and Fibre Optical Sensor performance are not influenceed by continued access, can effectively improve the security of downhole optic fiber sensor with
Reliability, while shortening is gone into the well the time, improves operational security of going into the well.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the procedure structure schematic diagram of the fixing means of the optical cable fiber port of one embodiment of the invention；
Fig. 2 is the structural representation of the cable configuration of one embodiment of the invention；
Fig. 3 be one embodiment of the invention cable configuration between continued access when structural representation；
Structural representation when Fig. 4 is continued access between the cable configuration of one embodiment of the invention and Fibre Optical Sensor；
Structural representation when Fig. 5 is the cable configuration end part seal of one embodiment of the invention.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and effect, now compare accompanying drawing and describe in detail
Specific embodiment of the invention.
With reference to Fig. 1, the fixing means of the optical cable fiber port of one embodiment of the invention, it may include following steps：
S1, from the port of optical cable by the end of inner tube 2 to the direction of outer tube 1 bend, formed flange 21.
In step S1, when the end of inner tube 2 is bent, the angle for preferably bending is less than 180 °；Also, the end of bending
Length is unsuitable long, and preferred length is less than the distance between inner tube 2 and outer tube 1 so that stayed between the flange 21 and outer tube 1 of formation
There is interval, will not contact.
In the present embodiment, flange 21 with respect to the axial direction of inner tube 2 in 90 ° of bendings, and positioned at the intervalve 5 of optical cable
End face side.Flange 21 can coordinate with intervalve 5 prevents inner tube 2 to be retracted to the inner side away from port in the axial direction.
S2, the port gluing to optical cable, on the fine cream 4 that glue 100 sticks in the inner side of outer tube 1 and end face, optical cable and
It is wrapped in the periphery of optical fiber 3 and coats wherein flange 21；The end of optical fiber 3 is located at outside glue 100, is not wrapped, for continued access
Deng use.
During gluing, glue 100 is coated in the inner side of outer tube 1, end face and fine cream 4 from the port of optical cable from the periphery of optical fiber 3
On, the interval also between flange 21 and outer tube 1 enters between inner and outer tubes, to fill to the end face of the intervalve 5 of optical cable
On, flange 21 is coated wherein.
Wherein, in optical cable, outer tube 1 and inner tube 2 are made of metal material, and intervalve 5 can be metal material or non-gold
Category material is made.Glue 100 is using the resistant to elevated temperatures high intensity glue with optical fiber 3, fine cream 4 and metals compatible, such as bi-component epoxy
Casting glue such that it is able to the firm port for sticking to optical cable, will not easily come off because of temperature change etc..Glue 100 it is resistance to
High-temperature temperature is not less than 200 DEG C；Glue 100 should also have anti-aging property, be used for a long time in subsurface environment with meeting.Glue
100 can be using that can match new T737, T747, T757 and T767 etc., according to the different optional different glue kinds of temperature in use.
S3, by the end of outer tube 1 to the direction of inner tube 2 bend, formed close up.
Wherein, the end of outer tube 1 is less than 90 ° to the angle that the direction of inner tube 2 bends, and the angle of bending is unsuitable excessive, with not
Touch inner tube 2 to be defined so that leave gap between flange 21 after the end bending of outer tube 1.
Also include after step s 3：
S3-1, by optical cable port it is unnecessary or overflow glue 100 remove, may be such that follow-up glue solidify to form it is close
The surface of adhesive layer 10 is more smooth, attractive in appearance, and improves the aesthetic property of optical cable port.
S4, glue 100 solidify to form sealant layer 10 in the port of optical cable.
Wherein, glue 100 can use spontaneous curing；Also can solidify at high temperature, to improve curing efficiency.Preferably, light
The glue 100 of cable port uses and solidifies quickly to form sealant layer 10 at 80-100 DEG C.Specifically, air-heater can be used
Blowing hot-air solidification is carried out to the glue 100 of optical cable port with 80-100 DEG C of operating temperature.
Be relatively fixed for outer tube 1, inner tube 2 and optical fiber 3 by the sealant layer 10 that glue 100 solidify to form, and fine cream 4 is blocked
In inner tube 2, so as to play will not occur between inner tube 2, optical fiber 3, fine cream 4 will not also flow out from optical cable port.The end of optical fiber 3
Portion passes sealant layer 10, and the fiber section for passing sealant layer 10 because of the winding of optical cable or will not unreel relative cable end reduction of area
Enter or stretch out.The end face outside optical cable port of sealant layer 10 is plane or arcwall face.
Further, since the closing in 11 of the port of outer tube 1 is set, sealant layer 10 is fixed on optical cable port well,
Sealant layer 10 is prevented to be extruded or pull out in optical cable.Flange 21 can further robust seal glue-line 10, prevent sealant layer 10
Come off.
The cable configuration obtained by the fixing means of above-described embodiment can be as shown in Figure 2.
As shown in Fig. 2 the cable configuration of one embodiment of the invention, including optical cable and stick to the sealing of optical cable port
Glue-line 10.Sealant layer 10 gets up the port closed of optical cable, and the end of optical fiber 3 of optical cable then passes sealant layer 10, is available for continuing
Connect.The cable configuration can be realized by the fixing means of the optical cable fiber port of above-described embodiment.
Wherein, optical cable includes outer tube 1, inner tube 2, optical fiber 3 and fine cream 4；Inner tube 2 is arranged on the inner side of outer tube 1, and optical fiber 3 is worn
It is located in inner tube 2, and fine cream 4 is filled in inner tube 2, plays waterproof action and optical fiber 3 can be positioned in inner tube 2, to optical fiber 3
Play resistance Hydrochemistry protection.Optical fiber 3 can be one or more.
Outer tube 1 as optical cable outer jointing jacket, its thickness is general big compared with the thickness of inner tube 2.The end of outer tube 1 is through bending
Closing in 11 is formed, sealant layer 10 is located on the tip inside of outer tube 1 and end face and fine cream 4, and is wrapped in the periphery of optical fiber 3.
When bending closes up 11 to be formed, the end of outer tube 1 is less than 90 ° with respect to the angle of the axial direction bending of outer tube 1；The angle of bending is unsuitable
It is excessive, it is defined by being not exposed to inner tube 2.Close up 11 mainly for fixing seal glue-line 10, prevent sealant layer 10 be extruded or
Pull out in optical cable.
Inner tube 2 is located at the inner side of outer tube 1, and its internal fine cream 4 of filling, fine cream 4 is wrapped in the periphery of optical fiber 3.The end of inner tube 2
Flange 21 is provided with, the flange 21 is bent to form for the end of inner tube 2 to the direction of outer tube 1, the angle of bending is preferably smaller than 180 °, bending
Tip lengths be less than the distance between inner tube 2 and outer tube 1.Gap is left between flange 21 and the end of outer tube 1, between the two not
Can contact.As shown in fig. 1, flange 21 is located at the inner side of closing in 11 of outer tube 1.
Further, optical cable also includes intervalve 5, and it is arranged between outer tube 1 and inner tube 2, by outer tube 1 and inner tube 2 every
Open, it is to avoid both directly contacts.Flange 21 is located at the end face side of intervalve 5, and can coordinate with intervalve 5 prevents inner tube 2 in axle
It is retracted to the inner side away from port upwards.Outer tube 1 and inner tube 2 are made of metal material, and intervalve 5 can be metal material or non-
Metal material is made.
Sealant layer 10 is formed using the resistant to elevated temperatures high intensity glue with optical fiber 3, fine cream 4 and metals compatible, such as bi-component
Epoxy pouring sealant, so that the port for sticking to optical cable that sealant layer 10 can be consolidated, will not easily take off because of temperature change etc.
Fall.The high temperature resistant temperature of sealant layer 10 is not less than 200 DEG C；Sealant layer 10 should also have anti-aging property, to meet in well
Used for a long time in lower environment.Sealant layer 10 can be formed using can match the glues such as new T737, T747, T757 and T767, according to making
Different glue kinds may be selected with temperature is different.
Specifically, sealant layer 10 is sticked on the tip inside of outer tube 1 and end face and fine cream 4, is wrapped in outside optical fiber 3
Week, and flange 21 is coated wherein, outer tube 1, inner tube 2 and optical fiber 3 are relatively fixed, and fine cream 4 is blocked in inner tube 2, from
And play will not occur between inner tube 2, optical fiber 3, fine cream 4 will not also flow out from optical cable port.The end of optical fiber 3 passes fluid sealant
Layer 10, the fiber section for passing sealant layer 10 because of the winding of optical cable or will not unreel relative cable end reduction of area and enter or stretch out.This
Outward, the setting of flange 21 can also further robust seal glue-line 10, prevent sealant layer 10 from coming off.
In addition, sealant layer 10 is also adhered on the end face of intervalve 5 of optical cable, by outer tube 1, intervalve 5 and the phase of inner tube 2
To fixation.
The concrete application example to cable configuration of the invention is illustrated below.
As shown in figure 3, when optical cable and optical cable carry out continued access, the end of optical fiber 3 that will be stretched out outside optical cable carries out continued access, due to
The sealant layer 10 that optical cable port is set, the fine cream 4 in optical cable may not flow into pressure hull 20, the inner tube 2 of optical cable and
Intervalve 5 will not be subjected to displacement, so that sealing when ensureing optical cable continued access is not influenceed with optical communication transmission performance by continued access.Together
When, the length of optical fiber 3 does not change, so that fiber lengths do not change at optical fiber continued access point 30, optical fiber will not be caused long
Or it is too short, will not be in stress or the when of being subjected to displacement causes continuous joint optical fiber to disconnect.
As shown in figure 4, when optical cable and Fibre Optical Sensor carry out continued access, the end of optical fiber 3 that will be stretched out outside optical cable and encapsulation
Fibre Optical Sensor 50 in pressure hull 40 carries out continued access, due to the sealant layer 10 that optical cable port is set, in optical cable
Fine cream 4 may not flow into pressure hull 40, and the inner tube 2 and intervalve 5 of optical cable will not be subjected to displacement, so as to ensure optical cable continued access
When sealing and optical communication transmit and Fibre Optical Sensor performance is not influenceed by continued access.Meanwhile, the length of optical fiber 3 does not change
Become so that fiber lengths do not change at optical fiber continued access point 31, optical fiber will not be caused long or too short, will not in stress or
Continuous joint optical fiber is caused to disconnect when being subjected to displacement.
As shown in figure 5, when optical cable bottom carries out end seals, pressure hull 60 is arranged on optical cable bottom.Optical cable
Port is not changed due to the setting of sealant layer 10, the length of optical fiber 3, and fine cream 4 may not flow into pressure hull 60, light
The inner tube 2 and intervalve 5 of cable will not be subjected to displacement, so as to ensure optical cable sealed bottom.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of fixing means of optical cable fiber port, it is characterised in that comprise the following steps：
S1, from the port of optical cable by the end of inner tube to outer tube direction bend, formed flange；
S2, the port gluing to the optical cable, on the fine cream that glue sticks in outer tube inner side and end face, optical cable and
It is wrapped in optical fiber periphery and coats wherein the flange；The end of the optical fiber is located at outside the glue；
S3, by the end of the outer tube to said inner tube direction bend, formed close up；
S4, the glue solidify to form sealant layer in the port of the optical cable.
2. the fixing means of optical cable fiber port according to claim 1, it is characterised in that described in the step S1
It is spaced between flange and the outer tube；
In the step S2, during gluing, glue from the interval between said inner tube and outer tube filling to the light
On the middle end surfaces of cable.
3. the fixing means of optical cable fiber port according to claim 1, it is characterised in that described in the step S2
Glue is using the resistant to elevated temperatures high intensity glue with optical fiber, fine cream and metals compatible.
4. the fixing means of optical cable fiber port according to claim 1, it is characterised in that described in the step S3
The angle that the end of outer tube is bent to said inner tube direction less than 90 °, and after the end bending of the outer tube with the flange it
Between leave gap.
5. the fixing means of optical cable fiber port according to claim 1, it is characterised in that described in the step S4
Glue is cured to form the sealant layer using spontaneous curing or at 80-100 DEG C.
6. the fixing means of the optical cable fiber port according to claim any one of 1-5, it is characterised in that the step S3
Also include afterwards：
S3-1, glue that the is optical cable port is unnecessary or overflowing are removed.
7. a kind of cable configuration of the fixing means of the optical cable fiber port described in use claim any one of 1-6, its feature
It is, including optical cable and sticks to the sealant layer of the optical cable port, the optical cable includes outer tube, is arranged in outer tube
Inner tube, the optical fiber being located in said inner tube and the fine cream being filled in said inner tube；
The end of said inner tube is provided with flange, and the end of the outer tube is through being bent to form closing in；The sealant layer is located at described
On outer tube end inner side and end face and the fine cream, the optical fiber periphery is wrapped in, and by flange cladding wherein；Institute
The end for stating optical fiber passes the sealant layer.
8. cable configuration according to claim 7, it is characterised in that between being left between the flange and the outer tube end
Gap.
9. cable configuration according to claim 7, it is characterised in that the axial direction of the relatively described outer tube in the end of the outer tube
The angle of bending is less than 90 °.
10. the cable configuration according to claim any one of 7-9, it is characterised in that the optical cable also includes being arranged on institute
The intervalve between outer tube and inner tube is stated, the flange is located at the end face side of the intervalve；The sealant layer is also adhered to
To the end face of the intervalve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189137.0A CN104793304B (en) | 2015-04-20 | 2015-04-20 | The fixing means and cable configuration of optical cable fiber port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189137.0A CN104793304B (en) | 2015-04-20 | 2015-04-20 | The fixing means and cable configuration of optical cable fiber port |
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| CN104793304A CN104793304A (en) | 2015-07-22 |
| CN104793304B true CN104793304B (en) | 2017-07-04 |
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| CN201510189137.0A Active CN104793304B (en) | 2015-04-20 | 2015-04-20 | The fixing means and cable configuration of optical cable fiber port |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109119196A (en) * | 2018-09-26 | 2019-01-01 | 广东迅维科技发展有限公司 | A kind of optoelectronic composite cable and coiled tubing logging system |
| CN113976404B (en) * | 2021-10-20 | 2022-12-02 | 广东亿源通科技股份有限公司 | Optical cable sealing method |
| CN114199515A (en) * | 2021-12-09 | 2022-03-18 | 中海石油(中国)有限公司 | Method for testing hydrogen loss aging of underground optical fiber |
| CN115343816A (en) * | 2022-08-10 | 2022-11-15 | 长芯盛（武汉）科技有限公司 | Optical cable, optical fiber jumper structure and method for manufacturing optical cable |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1464121A1 (en) * | 1987-04-20 | 1989-03-07 | Государственный научно-исследовательский институт теплоэнергетического приборостроения | Detachable connector of light guide and optronic element of the photodiode or light-emitting diode type |
| CN103676054B (en) * | 2013-12-13 | 2015-08-26 | 山东省科学院激光研究所 | Oil field special optical cable coupling arrangement |
| 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 |
| CN104216069B (en) * | 2014-09-30 | 2016-06-29 | 中航光电科技股份有限公司 | Joints of optical fibre encapsulation fitting and use the joints of optical fibre of this encapsulation fitting |
| CN204556924U (en) * | 2015-04-20 | 2015-08-12 | 中国海洋石油总公司 | Cable configuration |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC (China) Co., Ltd. Shenzhen Branch Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Beijing Weilanshi Technology Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC (China) Co., Ltd. Shenzhen Branch Patentee before: China National Offshore Oil Corporation Co-patentee before: Beijing Weilanshi Technology Co., Ltd. |