CN202886667U - Airtight-type oil-well detection sensing optical cable - Google Patents
Airtight-type oil-well detection sensing optical cable Download PDFInfo
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- CN202886667U CN202886667U CN 201220401321 CN201220401321U CN202886667U CN 202886667 U CN202886667 U CN 202886667U CN 201220401321 CN201220401321 CN 201220401321 CN 201220401321 U CN201220401321 U CN 201220401321U CN 202886667 U CN202886667 U CN 202886667U
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Abstract
The utility model discloses an airtight-type oil-well detection sensing optical cable, comprising an optical cable body (1), a top-pressurization seal fiber-leading apparatus (2) and a tail load seal apparatus (3), wherein the optical cable body (1) comprises an optical fiber unit (4), at least one optical fiber (5) and at least a layer of protection sleeve (6). A gas-filling protective layer a (7) is mounted between the optical fiber unit (4) and the protection sleeve (6). An optical-fiber protective layer (8) is disposed on an outer wall of the optical fiber (5). The top-pressurization seal fiber-leading apparatus (2) comprises a gas filling opening (9), an optical-cable locking bayonet a (10), an optical-fiber leading-out protection tube (12) and an optical-fiber leading-out protection flexible tube (13). The tail load seal apparatus (3) comprises a tail seal head (15). An optical cable interface (16) is mounted on one side of the tail seal head (15). The sensing optical cable provided by the utility model has excellent performances of high temperature resistance, tension resistance, compression resistance, corrosion resistance and geomagnetic and geoelectric interference resistance, and has long service life.
Description
Technical field
The utility model relates to a kind of airproof oil well detection sensing optic cable.
Background technology
Optical fiber sensing technology is that 20 century 70s are followed the development of Fibre Optical Communication Technology and the New Sensing Technology that develops rapidly.More external developed countries acquire a great achievement to the applied research of optical fiber sensing technology, and many optical fiber sensing systems are practical, become the commodity that substitute traditional sensors.In the performance history in oil field, people need to know in production fluid or the injecting process about the holding property of in-hole fluid and the particulars of state, this will use oil well logging, its reliability and accuracy are vital, and traditional sensor can't be in the lower work of down-hole rugged environment (such as high temperature, high pressure, the ground electrical interference of burn into earth magnetism etc.).Fibre Optical Sensor can overcome these difficulties, it is insensitive and can bear extreme condition to electromagnetic interference (EMI), comprise high temperature, high pressure (more than tens MPas) and strong shock and vibration, can measure accurately pit shaft and well site environmental parameter, simultaneously, Fibre Optical Sensor has the distributed measurement ability, can measure measured space distribution, provides profile information.In addition, the Fibre Optical Sensor cross-sectional area is little, and profile is short, and it is minimum to take up space in pit shaft.
Yet, it is poor that existing oil well detection sealing with optical fiber sensing optic cable ubiquity, directly affected high temperature resistant, high pressure resistant, the tension of sensing optic cable, the performance of anticorrosive and anti-earth magnetism ground electrical interference, causes the serviceable life of sensing optic cable limited, can't Reusability, increased construction cost.
The utility model content
The purpose of this utility model is to solve the deficiencies in the prior art, a kind of good sealing effect is provided, the performance of high temperature resistant, high pressure resistant, tension, the ground electrical interference of anticorrosive and anti-earth magnetism is strong, long service life and repeatedly used airproof oil well detection sensing optic cable.
The purpose of this utility model is achieved through the following technical solutions: airproof oil well detection sensing optic cable, it comprises that optical cable body, top pressurization draw fine device and tail end heavy burden packoff, and the optical cable body is connected in the top pressurization and draws between fine device and the tail end heavy burden packoff; Described optical cable body comprises fiber unit, be located at least one optical fiber in the fiber unit and be located at least one deck protection overcoat in the fiber unit outside, be provided with gas between fiber unit and the protection overcoat and fill protective seam a, the outer wall of optical fiber is provided with the fiber optic protection layer, is provided with gas between the inwall of fiber unit and the fiber optic protection layer and fills protective seam b; The pressurization of described top is drawn fine device and is comprised that top apparatus main body, gas are filled with mouth, optical cable locking bayonet socket a, draw optical fiber protective tube and draw the fiber optic protection flexible pipe, gas is filled with the washing gas porch that mouth is located at the top apparatus main body, one end of top apparatus main body is provided with optical cable locking bayonet socket a, be provided with capillary tubing in the optical cable locking bayonet socket a, the other end of top apparatus main body is provided with draws optical fiber protective tube and draw the fiber optic protection flexible pipe, draws optical fiber protective tube and draws the fiber optic protection flexible pipe and link to each other with the top apparatus main body by airtight self-locking device respectively; Described tail end heavy burden packoff comprises the tail end sealing head, and a side of tail end sealing head is provided with the optical cable interface, and the optical cable interface is provided with optical cable locking bayonet socket b.
Optical fiber described in the utility model is any one in multimode optical fiber, single-mode fiber, polyimide coated fiber and the coating metal optical fiber.
Protection overcoat described in the utility model is formed by 1～5 layer of stainless-steel tube edge cover.
The blanket gas of filling among gas filling protective seam a described in the utility model and the gas filling protective seam b is any one in helium, argon gas and the nitrogen.
The beneficial effects of the utility model are: the utility model is high temperature resistant to reach 600 ℃, more than the stretching resistance 10000N, and the excellent performance of above and anticorrosive, the anti-earth magnetism ground electrical interference of compressive resistance 100MPa; Whole optical fiber is present in an environment that seals fully and completely cut off with oil well, and inert gas shielding on every side, the serviceable life that can greatly improve optical fiber cable; This optical cable is applicable to the environmental parameter of measuring pit shaft and well site in the environment of the very severes such as oil well vapour well and transmit coherent signal, has expanded the application of Fibre Optical Sensor.
Description of drawings
Fig. 1 is the structural representation of the utility model optical cable body;
Fig. 2 is the structural representation that fine device is drawn in the pressurization of the utility model top;
Fig. 3 is the structural representation of the utility model tail end heavy burden packoff;
Among the figure, 1-optical cable body, fine device is drawn in the pressurization of 2-top, 3-tail end heavy burden packoff; the 4-fiber unit, 5-optical fiber, 6-protects overcoat, and 7-gas is filled protective seam a; 8-fiber optic protection layer, 9-gas is filled with mouth, 10-optical cable locking bayonet socket a; the 11-capillary tubing, 12-draws optical fiber protective tube, and 13-draws the fiber optic protection flexible pipe; 14-top apparatus main body, 15-tail end sealing head, 16-optical cable interface; 17-optical cable locking bayonet socket b, 18-gas is filled protective seam b, the airtight self-locking device of 19-.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
Airproof oil well detection sensing optic cable, it comprises that optical cable body 1, top pressurization draw fine device 2 and tail end heavy burden packoff 3, optical cable body 1 is connected in the top pressurization and draws between fine device 2 and the tail end heavy burden packoff 3.
As shown in Figure 1; optical cable body 1 comprises fiber unit 4, be located at least one optical fiber 5 in the fiber unit 4 and be located at least one deck protection overcoat 6 in fiber unit 4 outsides, and optical fiber 5 is any one in multimode optical fiber, single-mode fiber, polyimide coated fiber and the coating metal optical fiber.Protection overcoat 6 is formed by 1～5 layer of stainless-steel tube edge cover, and the material of fiber unit 4 and protection overcoat 6 can select that the trade mark is 304,304L or 306 stainless-steel tube, and the concrete number of plies of protection overcoat 6 is determined according to actual oil well environment.Be provided with gas between fiber unit 4 and the protection overcoat 6 and fill protective seam a7; the outer wall of optical fiber 5 is provided with fiber optic protection layer 8; be provided with gas between the inwall of fiber unit 4 and the fiber optic protection layer 8 and fill protective seam b18; the blanket gas of filling among gas filling protective seam a7 and the gas filling protective seam b18 is any one in the inert gases such as helium, argon gas and nitrogen, and the packing material of fiber optic protection layer 8 is glass fibre or aramid yarn fiber.
As shown in Figure 2; the top pressurization is drawn fine device 2 and is comprised that top apparatus main body 14, gas are filled with mouth 9, optical cable locking bayonet socket a10, draw optical fiber protective tube 12 and draw fiber optic protection flexible pipe 13, and the material selection of top apparatus main body 14 is through 45# steel, Cr after modified
12, Cr
12MoV or other mould steel.Gas is filled with the washing gas porch that mouth 9 is located at top apparatus main body 14, one end of top apparatus main body 14 is provided with optical cable locking bayonet socket a10, be provided with capillary tubing 11 in the optical cable locking bayonet socket a10, the material selection trade mark of capillary tubing 11 is 304,304L or 306 stainless steel.The other end of top apparatus main body 14 is provided with draws optical fiber protective tube 12 and draws fiber optic protection flexible pipe 13, draws optical fiber protective tube 12 and draws fiber optic protection flexible pipe 13 and link to each other with top apparatus main body 14 by airtight self-locking device 19 respectively; Draw optical fiber protective tube 12 and be PE pipe or PBT pipe, the surface is smooth bright or have the sawtooth lines; Draw fiber optic protection flexible pipe 13 and be PE pipe or PU pipe.
As shown in Figure 3, tail end heavy burden packoff 3 comprises tail end sealing head 15, and the material of tail end sealing head 15 is red copper or oxygen-free copper.One side of tail end sealing head 15 is provided with optical cable interface 16, and optical cable interface 16 places are provided with optical cable locking bayonet socket b17.
Claims (4)
1. airproof oil well detection sensing optic cable, it is characterized in that: it comprises that optical cable body (1), top pressurization draw fine device (2) and tail end heavy burden packoff (3), and optical cable body (1) is connected in the top pressurization and draws between fine device (2) and the tail end heavy burden packoff (3);
At least one deck that described optical cable body (1) comprises fiber unit (4), be located at least one optical fiber (5) in the fiber unit (4) and be located at fiber unit (4) outside is protected overcoat (6), be provided with gas between fiber unit (4) and the protection overcoat (6) and fill protective seam a(7), the outer wall of optical fiber (5) is provided with fiber optic protection layer (8), is provided with gas between the inwall of fiber unit (4) and the fiber optic protection layer (8) and fills protective seam b(18);
The pressurization of described top is drawn fine device (2) and is comprised top apparatus main body (14), gas is filled with mouthful (9), optical cable locking bayonet socket a(10), draw optical fiber protective tube (12) and draw fiber optic protection flexible pipe (13), gas is filled with the washing gas porch that mouthful (9) are located at top apparatus main body (14), one end of top apparatus main body (14) is provided with optical cable locking bayonet socket a(10), optical cable locking bayonet socket a(10) is provided with capillary tubing (11) in, the other end of top apparatus main body (14) is provided with draws optical fiber protective tube (12) and draws fiber optic protection flexible pipe (13), draws optical fiber protective tube (12) and draws fiber optic protection flexible pipe (13) and link to each other with top apparatus main body (14) by airtight self-locking device (19) respectively;
Described tail end heavy burden packoff (3) comprises tail end sealing head (15), and a side of tail end sealing head (15) is provided with optical cable interface (16), and optical cable interface (16) locates to be provided with optical cable locking bayonet socket b(17).
2. airproof oil well detection sensing optic cable according to claim 1 is characterized in that: described optical fiber (5) is in multimode optical fiber, single-mode fiber, polyimide coated fiber and the coating metal optical fiber any one.
3. airproof oil well detection sensing optic cable according to claim 1 is characterized in that: described protection overcoat (6) is formed by 1～5 layer of stainless-steel tube edge cover.
4. airproof oil well detection sensing optic cable according to claim 1 is characterized in that: described gas is filled protective seam a(7) and gas fill protective seam b(18) in the blanket gas of filling be in helium, argon gas and the nitrogen any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401321 CN202886667U (en) | 2012-08-14 | 2012-08-14 | Airtight-type oil-well detection sensing optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401321 CN202886667U (en) | 2012-08-14 | 2012-08-14 | Airtight-type oil-well detection sensing optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886667U true CN202886667U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220401321 Expired - Lifetime CN202886667U (en) | 2012-08-14 | 2012-08-14 | Airtight-type oil-well detection sensing optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591226A (en) * | 2017-10-04 | 2018-01-16 | 佛山市因诺威特科技有限公司 | A kind of multi-functional fire resisting twisted-pair feeder based on electrical shielding technology |
-
2012
- 2012-08-14 CN CN 201220401321 patent/CN202886667U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591226A (en) * | 2017-10-04 | 2018-01-16 | 佛山市因诺威特科技有限公司 | A kind of multi-functional fire resisting twisted-pair feeder based on electrical shielding technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |