CN201763322U - Optical fiber-type pressure and temperature sensor - Google Patents
Optical fiber-type pressure and temperature sensor Download PDFInfo
- Publication number
- CN201763322U CN201763322U CN2009202471884U CN200920247188U CN201763322U CN 201763322 U CN201763322 U CN 201763322U CN 2009202471884 U CN2009202471884 U CN 2009202471884U CN 200920247188 U CN200920247188 U CN 200920247188U CN 201763322 U CN201763322 U CN 201763322U
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- optical cable
- fiber
- lock pin
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Abstract
The utility model discloses an optical fiber-type pressure and temperature sensor, which comprises a sensor body and a quick connector, wherein the quick connector is fixedly connected with the sensor body; the quick connector comprises a sensor fiber accommodating section and an optical cable fiber accommodating section which are connected tightly; sensor fibers positioned at the connecting end of the quick connector and sensor body are arranged in the sensor fiber accommodating section; optical cable fibers positioned at the other end of the quick connector are arranged in the optical cable fiber accommodating section; and pushing structures are arranged on the sensor fiber accommodating section and the optical cable fiber accommodating section, so as to ensure the tight connection between the optical cable fibers and the sensor fibers. Pin connectors convenient for connecting the optical cable fibers and the sensor fibers are arranged on the optical fiber-type pressure and temperature sensor, so that the step for welding the sensor fibers and the optical cable fibers is omitted during the practical installation process of the sensor, the installation efficiency is improved greatly, and the work intensity is reduced.
Description
Technical field
The utility model relates to optical fiber sensor, refers to the sensor of a kind of measuring well downforce and temperature especially.
Background technology
In order to guarantee the safety of down-hole oil production, reduce workover treatment and closing well number of times, and even reduce the leakage of crude oil, increase the crude oil cumulative production, this just need monitor in real time to the pressure and temperature of oil gas down-hole, carries out state analysis at any time.
Existing oil gas down-hole all adopts optical fiber sensor that subsurface environment is monitored; its structure as shown in Figure 1; comprise that pilot port locking cap 1, taper snap ring 2, pilot liquid cushion chamber 3, sensing element protection tube 4, high pressure isolating cap 5, optical fiber end sealing cap 6, pressure cap 7, lock nut 8, grating protection tube sealing tube head 9, grating protection tube 10, grating connect protection tube 11, optical cable seal nipple 15, optical fiber 12 places sensor.This Fibre Optical Sensor in actual applications, need take apart at the scene, with optical fiber in the optical cable and the fused fiber splice in the sensor, then optical cable seal nipple 15 is sleeved in the cable tube and seals, because the oil field field working conditions is more special, and fused fiber splice is had relatively high expectations to operating environment, and thin and crisp being easy to of optical fiber fractures, fiber cores welding end face is subjected to oil pollution easily and causes welding to be failed, may need repeatedly welding the optical fiber of optical cable part could be in the same place with the fused fiber splice in the sensor, in order to prevent that the welding failure from can't continue welding, all leave a long section optical fiber in the sensor as reserving the welding section, the optical fiber at optical cable seal nipple 15 places is and reserves welding section optical fiber among Fig. 1, owing to be provided with one section very long welding section optical fiber, existing optical fiber sensor integral body is longer, and axially flexural strength reduces, and on-the-spot this kind sensor of installing is wasted time and energy.
The utility model content
At the problem that prior art exists, the utility model provides a kind of easy for installation, optical fiber sensor fast.
For achieving the above object, optical fiber type pressure and temperature sensor of the present utility model, comprise sensor body and snap joint, snap joint is fixedlyed connected with sensor body, snap joint comprises sensor fiber set section and optical cable and optical fibres set section, sensor fiber set section and optical cable and optical fibres set section close proximity, the sensor fiber of snap joint and sensor body link is arranged in the sensor fiber set section, and the optical cable and optical fibres of the snap joint other end is arranged in the optical cable and optical fibres set section; Be provided with the pushing tow structure on sensor fiber set section and the optical cable and optical fibres set section, guarantee described optical cable and optical fibres and sensor fiber close proximity.
Further, described sensor fiber set section and optical cable and optical fibres set section are that one or split are connected and fixed.
Further, be threaded between described optical cable and optical fibres set section and the described sensor fiber set section.
Further, described optical cable and optical fibres set section comprises jacket tube and the optical cable and optical fibres lock pin that is arranged in the jacket tube, the optical cable and optical fibres lock pin is arranged in the jacket tube and can slides in jacket tube, has the through hole that passes for described optical cable and optical fibres on the optical cable and optical fibres lock pin.
Further, described sensor fiber set section comprises tubular configured joint and the sensor fiber lock pin that is arranged in the tubular configured joint, the sensor fiber lock pin is arranged in the tubular configured joint and can slides in tubular configured joint, has the through hole that passes for described sensor fiber on the sensor fiber lock pin.
Further, described pushing tow structure comprises spring and jackscrew, spring one end in described optical cable and optical fibres set section and the sensor fiber set section pushes against described optical cable and optical fibres lock pin and described sensor fiber lock pin respectively, the two spring other ends connect jackscrew respectively, two jackscrews are separately fixed in described jacket tube and the described tubular configured joint, described optical cable and optical fibres lock pin and described sensor fiber lock pin two ends close proximity under spring and jackscrew effect.
Further, be provided with sealing mat between described jacket tube and the tubular configured joint.
Further, described optical cable and optical fibres and sensor fiber insert described optical cable and optical fibres lock pin and sensor fiber lock pin respectively, and are fixed on the jackscrew in described jacket tube and the tubular configured joint by high-temp glue respectively.
Further, the through hole on described optical cable and optical fibres lock pin and the sensor fiber lock pin is at sustained height.
Be provided with the pin type joint that makes things convenient for optical cable to be connected on the optical fiber sensor of the present utility model with sensor fiber, in the actual installation process of sensor, saved the welding step of sensor fiber and optical cable and optical fibres, do not need to reserve the optical fiber of welding section on the sensor, therefore shortened the length of sensor, axially flexural strength improves.Optical cable and optical fibres is inserted on the joint can improve installation effectiveness greatly so that sensor fiber is connected with optical cable and optical fibres, has reduced working strength.
Description of drawings
Fig. 1 is the structural representation of existing fiber formula pressure and temperature sensor;
Fig. 2 is the structural representation of optical fiber type pressure and temperature sensor of the present utility model;
Fig. 3 is the A portion enlarged drawing among Fig. 2.
The specific embodiment
Shown in Fig. 2 and 3, optical fiber type pressure and temperature sensor of the present utility model comprises sensor body and snap joint 13, wherein, sensor body is identical with the structure of existing optical fiber type pressure and temperature sensor among Fig. 1, and sensor body of the present utility model can be the existing pressure and temperature of optical fiber type arbitrarily sensor, and optical fiber type pressure and temperature sensor of the present utility model is connected with sensor fiber 12 optical cable and optical fibres 14 by snap joint 13 with the form of pegging graft.The concrete structure of snap joint 13 as shown in Figure 3, comprise optical cable and optical fibres joint 133 ' and sensor fiber joint 133, optical cable and optical fibres joint 133 ' and 133 butt joints of sensor fiber joint, in order to guarantee sealing, the two joint is provided with metallic seal 135, sensor fiber joint 133 is welded on the sensor body, optical cable and optical fibres joint 133 ' and sensor fiber joint 133 are tubular structure, wherein be respectively arranged with optical cable and optical fibres lock pin 134 ' and sensor fiber lock pin 134, optical cable and optical fibres lock pin 134 ' and sensor fiber lock pin 134 can slide in optical cable and optical fibres joint 133 ' and sensor fiber joint 133, and sensor fiber lock pin 134 and optical cable and optical fibres lock pin 134 ' are provided with the through hole that supplies sensor fiber 12 and optical cable and optical fibres 14 to pass through, also be provided with the ring-shaped groove of ccontaining O shape circle 136 on it, also be provided with the pushing tow structure of optical cable and optical fibres lock pin 134 ' and sensor fiber lock pin 134 in optical cable and optical fibres joint 133 ' and the sensor fiber joint 133, this pushing tow structure is by spring 132 ', 132 and jackscrew 131 ', 131 constitute, the one end pushing and pressing of its medi-spring 132 ' are on optical cable and optical fibres lock pin 134 ', the other end is fixed on the jackscrew 131 ', and jackscrew 131 ' is fixed in the optical cable and optical fibres joint 133 '; The interior pushing tow structure set-up mode of pushing tow structure in the sensor fiber joint 133 and optical cable and optical fibres joint 133 ' is identical, optical cable and optical fibres lock pin 134 ' and sensor fiber lock pin 134 are under the thrusting action of pushing tow structure, both closed butt joints, and the through hole on it is on the horizon, sensor fiber 12 and optical cable and optical fibres 14 are docking together after passing sensor fiber lock pin 134 and optical cable and optical fibres lock pin 134 ' respectively, in order to guarantee the stable of optical cable and optical fibres 14 and sensor fiber 12, after optical cable and optical fibres 14 and sensor fiber 12 insert snap joint 13, fix with lock pin 134 ' and 134 respectively by high-temp glue, can further improve the connective stability between optical cable and optical fibres 14 and the sensor fiber 12.
Sensor of the present utility model adopts snap joint will connect fast, easily between sensor and the optical cable, owing to adopted the grafting form, therefore saved the welding step of optical cable and optical fibres and sensor fiber in actual applications, both made things convenient for construction, can save the fused fiber splice section that leaves in the existing sensor again, reduce the length of sensor integral body, improved the axial flexural strength of sensor.
It is to be noted and any distortion of having done according to the specific embodiment of the present utility model all do not break away from the scope that spirit of the present utility model and claim are put down in writing.
Claims (8)
1. optical fiber type pressure and temperature sensor, it is characterized in that, comprise sensor body and snap joint, snap joint is fixedlyed connected with sensor body, snap joint comprises sensor fiber set section and optical cable and optical fibres set section, sensor fiber set section and optical cable and optical fibres set section close proximity, the sensor fiber of snap joint and sensor body link is arranged in the sensor fiber set section, and the optical cable and optical fibres of the snap joint other end is arranged in the optical cable and optical fibres set section; Be provided with the pushing tow structure on sensor fiber set section and the optical cable and optical fibres set section, guarantee described optical cable and optical fibres and sensor fiber close proximity.
2. optical fiber type pressure and temperature sensor as claimed in claim 1 is characterized in that, described sensor fiber set section and optical cable and optical fibres set section are that one or split are connected and fixed.
3. optical fiber type pressure and temperature sensor as claimed in claim 1 is characterized in that, is threaded between described optical cable and optical fibres set section and the described sensor fiber set section.
4. optical fiber type pressure and temperature sensor as claimed in claim 1, it is characterized in that, described optical cable and optical fibres set section comprises jacket tube and the optical cable and optical fibres lock pin that is arranged in the jacket tube, the optical cable and optical fibres lock pin is arranged in the jacket tube and can slides in jacket tube, has the through hole that passes for described optical cable and optical fibres on the optical cable and optical fibres lock pin; Described sensor fiber set section comprises tubular configured joint and the sensor fiber lock pin that is arranged in the tubular configured joint, the sensor fiber lock pin is arranged in the tubular configured joint and can slides in tubular configured joint, has the through hole that passes for described sensor fiber on the sensor fiber lock pin.
5. optical fiber type pressure and temperature sensor as claimed in claim 4, it is characterized in that, described pushing tow structure comprises spring and jackscrew, spring one end in described optical cable and optical fibres set section and the sensor fiber set section pushes against described optical cable and optical fibres lock pin and described sensor fiber lock pin respectively, the two spring other ends connect jackscrew respectively, two jackscrews are separately fixed in described jacket tube and the described tubular configured joint, described optical cable and optical fibres lock pin and described sensor fiber lock pin two ends close proximity under spring and jackscrew effect.
6. optical fiber type pressure and temperature sensor as claimed in claim 4 is characterized in that, is provided with sealing mat between described jacket tube and the tubular configured joint.
7. optical fiber type pressure and temperature sensor as claimed in claim 5, it is characterized in that, described optical cable and optical fibres and sensor fiber insert described optical cable and optical fibres lock pin and sensor fiber lock pin respectively, and are fixed on the jackscrew in described jacket tube and the tubular configured joint by high-temp glue respectively.
8. optical fiber type pressure and temperature sensor as claimed in claim 4 is characterized in that the through hole on described optical cable and optical fibres lock pin and the sensor fiber lock pin is at sustained height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202471884U CN201763322U (en) | 2009-11-20 | 2009-11-20 | Optical fiber-type pressure and temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202471884U CN201763322U (en) | 2009-11-20 | 2009-11-20 | Optical fiber-type pressure and temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763322U true CN201763322U (en) | 2011-03-16 |
Family
ID=43715931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202471884U Expired - Lifetime CN201763322U (en) | 2009-11-20 | 2009-11-20 | Optical fiber-type pressure and temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763322U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895559A (en) * | 2015-05-25 | 2015-09-09 | 中国石油集团渤海钻探工程有限公司 | Oil-gas well downhole optical fiber temperature and pressure test instrument |
| CN106323535A (en) * | 2015-06-16 | 2017-01-11 | 中国石油天然气股份有限公司 | Optical fiber pressure sensor device |
| CN108348180A (en) * | 2015-09-04 | 2018-07-31 | 波士顿科学国际有限公司 | Pressure sensing seal wire |
| WO2020132562A1 (en) * | 2018-12-21 | 2020-06-25 | Baker Hughes Oilfield Operations Llc | Optical gas sensor assembly |
-
2009
- 2009-11-20 CN CN2009202471884U patent/CN201763322U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895559A (en) * | 2015-05-25 | 2015-09-09 | 中国石油集团渤海钻探工程有限公司 | Oil-gas well downhole optical fiber temperature and pressure test instrument |
| CN104895559B (en) * | 2015-05-25 | 2017-09-15 | 中国石油集团渤海钻探工程有限公司 | Oil/gas Well downhole optic fiber temperature, pressure tester |
| CN106323535A (en) * | 2015-06-16 | 2017-01-11 | 中国石油天然气股份有限公司 | Optical fiber pressure sensor device |
| CN106323535B (en) * | 2015-06-16 | 2019-03-12 | 中国石油天然气股份有限公司 | Optical fiber pressure sensor device |
| CN108348180A (en) * | 2015-09-04 | 2018-07-31 | 波士顿科学国际有限公司 | Pressure sensing seal wire |
| US11857345B2 (en) | 2015-09-04 | 2024-01-02 | Boston Scientific Scimed, Inc. | Pressure sensing guidewires |
| WO2020132562A1 (en) * | 2018-12-21 | 2020-06-25 | Baker Hughes Oilfield Operations Llc | Optical gas sensor assembly |
| GB2594656A (en) * | 2018-12-21 | 2021-11-03 | Baker Hughes Oilfield Operations Llc | Optical gas sensor assembly |
| GB2594656B (en) * | 2018-12-21 | 2022-09-28 | Baker Hughes Oilfield Operations Llc | Optical gas sensor assembly |
| US11725465B2 (en) * | 2018-12-21 | 2023-08-15 | Baker Hughes Oilfield Operations Llc | Optical gas sensor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Yin Zhenqi Document name: Notification to Go Through Formalities of Registration |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |