CN221074221U - Pressure-bearing protection device of logging armored optical fiber sensor - Google Patents
Pressure-bearing protection device of logging armored optical fiber sensor Download PDFInfo
- Publication number
- CN221074221U CN221074221U CN202321798177.1U CN202321798177U CN221074221U CN 221074221 U CN221074221 U CN 221074221U CN 202321798177 U CN202321798177 U CN 202321798177U CN 221074221 U CN221074221 U CN 221074221U
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- optical fiber
- pressure
- protection device
- logging
- sensor
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000741 silica gel Substances 0.000 claims abstract description 5
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000007723 transport mechanism Effects 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000010292 electrical insulation Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a pressure-bearing protection device of a logging armored optical fiber sensor, which relates to the technical field of pressure-bearing protection of optical fiber sensors and comprises a main body, a connecting mechanism and a transmission mechanism, wherein the bottom of the main body is provided with the connecting mechanism, and the bottom of the main body is provided with an interface. This logging armor optical fiber sensor pressure-bearing protection device through using the stainless steel shell, improves the high temperature resistant high pressure resistant nature of device, through using the flexible graphite sealing ring that has high temperature resistant, corrosion-resistant, stand wear and tear characteristic, improves sealing performance, through using high temperature resistant silica gel insulating skin, improve high low temperature impact resistance, closely laminate with the armor, improve electrical insulation performance, through the stainless steel spiral armor, improve mechanical properties, prevent expend with heat and contract with cold and lead to mismatch with optic fibre, through using the loss increase of the mechanical fatigue loss and the hydrogen molecule of carbon coating optic fibre improvement optic fibre, through using signal amplifier and wave filter, the interference killing feature and the stability of signal are improved.
Description
Technical Field
The utility model relates to the technical field of pressure-bearing protection of optical fiber sensors, in particular to a pressure-bearing protection device of a logging armored optical fiber sensor.
Background
Logging, also called geophysical logging or petroleum logging, for short, is a method for measuring geophysical parameters by using the electrochemical properties, conductive properties, acoustic properties, radioactivity and other geophysical properties of rock stratum, and during petroleum drilling, logging must be performed after drilling to the depth of a designed well, also called completion logging, so as to obtain various petroleum geology and engineering technical data, and the logging armor is an important component in the logging process for protecting logging instruments from being interfered by factors such as oil gas, well wall and the like.
Through searching, the publication number is CN216198051U, a pressure-bearing protection device of an armored fiber sensor for well logging is provided, and the armored fiber sensor comprises an armored fiber sensor, a fixing component, an upper connector, a sealing mechanism, a connecting sleeve and a lower connector; the utility model can isolate the armored fiber sensor from external gas and liquid by arranging the fixing component, the connecting sleeve and the sealing mechanism, thereby avoiding the armored fiber sensor from being impacted by the external world and invaded by the liquid under the condition of high temperature and high pressure, effectively ensuring the working reliability of the fiber cable.
Thus, we provide a pressure-bearing protection device for a logging armored fiber sensor.
Disclosure of utility model
The utility model aims to provide a pressure-bearing protection device for a logging armored optical fiber sensor, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a logging armor optical fiber sensor pressure-bearing protection device, includes main part, coupling mechanism and transport mechanism, the bottom of main part is provided with coupling mechanism, the bottom of main part is provided with the interface, the outside of interface is provided with the nut, the bottom of interface is provided with the sealing ring, the bottom of sealing ring is provided with the sensor shell, the inside of main part is provided with transport mechanism, the inside of main part is provided with insulating skin, the inside of insulating skin is provided with the armor, the inside of armor is provided with optic fibre, the one end and the signal amplifier of optic fibre are connected, signal amplifier's below is provided with the wave filter, the inside of sensor shell is provided with the sensor.
Preferably, the main body is made of stainless steel, and the sensor housing is made of stainless steel.
Preferably, the interface and the nut form threaded connection, and the sealing ring is a flexible graphite sealing ring.
Preferably, the main body is adhered to the insulating skin, and the insulating skin is high-temperature resistant silica gel.
Preferably, the armor is made of stainless steel, and the armor is in a convoluted form.
Preferably, the optical fiber is a carbon-coated optical fiber, and the armor is matched with the optical fiber in size.
Preferably, the optical fiber is electrically connected with the signal amplifier, and the optical fiber is electrically connected with the filter.
Preferably, the main body is in threaded connection with the sensor housing, and the sensor housing is fixedly connected with the sensor.
Compared with the prior art, the utility model has the beneficial effects that:
According to the pressure-bearing protection device of the logging armored optical fiber sensor, the stainless steel shell is used, the high temperature resistance and the high pressure resistance of the device are improved, and the sealing performance is improved by using the flexible graphite sealing ring with the characteristics of high temperature resistance, corrosion resistance and wear resistance.
Through using high temperature resistant silica gel insulating skin, improve high low temperature impact resistance, closely laminate with the armor, improve electrical insulation performance, through stainless steel spiral armor, improve mechanical properties, prevent that expend with heat and contract with cold from leading to not matching with optic fibre, through using carbon coating optic fibre to improve the mechanical fatigue loss of optic fibre and the loss increase of hydrogen molecule, through using signal amplifier and wave filter, improve the interference killing feature and the stability of signal.
Drawings
FIG. 1 is a schematic view of the appearance structure of the present utility model;
FIG. 2 is a cross-sectional view of the main body of the present utility model;
FIG. 3 is a cross-sectional view of the attachment mechanism of the present utility model;
fig. 4 is a partial cross-sectional view of a transfer mechanism of the present utility model.
Reference numerals in the drawings: 1. a main body; 2. a connecting mechanism; 201. an interface; 202. a nut; 203. a seal ring; 3. a sensor housing; 4. a transmission mechanism; 401. an insulating skin; 402. armor; 403. an optical fiber; 404. a signal amplifier; 405. a filter; 5. a sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a logging armor optical fiber sensor pressure-bearing protection device, including main part 1, coupling mechanism 2 and transport mechanism 4, the bottom of main part 1 is provided with coupling mechanism 2, the bottom of main part 1 is provided with interface 201, the outside of interface 201 is provided with nut 202, the bottom of interface 201 is provided with sealing ring 203, the bottom of sealing ring 203 is provided with sensor housing 3, the inside of main part 1 is provided with transport mechanism 4, the inside of main part 1 is provided with insulating skin 401, the inside of insulating skin 401 is provided with armor 402, the inside of armor 402 is provided with optic fibre 403, the one end and the signal amplifier 404 of optic fibre 403 are connected, the below of signal amplifier 404 is provided with filter 405, the inside of sensor housing 3 is provided with sensor 5.
Further, the main body 1 is made of stainless steel, and the sensor housing 3 is made of stainless steel, and has high temperature and high pressure resistance.
Further, the interface 201 and the nut 202 form threaded connection, the sealing ring 203 is a flexible graphite sealing ring, the flexible graphite sealing ring adopts flexible graphite ribbon or flexible graphite to compile filler, and annular products with different sizes are manufactured through mould pressing, so that the sealing performance is improved.
Further, the main body 1 is adhered to the insulating skin 401, the insulating skin 401 is high-temperature resistant silica gel, high-temperature and low-temperature impact resistant, and is adhered to various substrates without using a primer, and the insulating skin has excellent heat resistance, chemical corrosion resistance and electrical insulation performance.
Further, the armor 402 is made of stainless steel, the armor 402 is in a winding mode, the stainless steel winds the armor 402, the armor has high durability and high compression resistance, super-strong mechanical properties are achieved, and mismatch between the armor and the optical fiber 403 caused by thermal expansion and cold contraction is prevented.
Further, the optical fiber 403 is a carbon-coated optical fiber, the armor 402 is matched with the optical fiber 403 in size, and the surface of the optical fiber 403 is isolated from the outside by using a dense carbon film layer, so as to improve the mechanical fatigue loss of the optical fiber 403 and the increase of the loss of hydrogen molecules.
Further, the optical fiber 403 is electrically connected to the signal amplifier 404, and the optical fiber 403 is electrically connected to the filter 405, so as to improve the anti-interference capability and stability of the signal.
Further, the main body 1 is in threaded connection with the sensor housing 3, and the sensor housing 3 is fixedly connected with the sensor 5, so that different sensors 5 can be replaced conveniently.
Working principle: the device is installed in a working position, firstly, the interface 201 is in butt joint, the nut 202 is screwed, the sensor housing 3 is fixed on the main body 1, petroleum, natural gas and the like are prevented from entering the inside, the transmission mechanism 4 and the sensor 5 are ensured to be successfully connected, the sensor 5 collects signals, the signals are transmitted to the filter 405 and the signal amplifier 404 through the optical fiber 403, clutter is removed, the signals are amplified, and the signals are transmitted to the terminal through the optical fiber 403, so that the use process of the pressure-bearing protection device of the logging armor optical fiber sensor is completed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a logging armor optical fiber sensor pressure-bearing protection device, includes main part (1), coupling mechanism (2) and transport mechanism (4), its characterized in that: the novel sensor is characterized in that a connecting mechanism (2) is arranged at the bottom of the main body (1), an interface (201) is arranged at the bottom of the main body (1), a nut (202) is arranged on the outer side of the interface (201), a sealing ring (203) is arranged at the bottom of the interface (201), a sensor housing (3) is arranged at the bottom of the sealing ring (203), a transmission mechanism (4) is arranged in the main body (1), an insulating cover (401) is arranged in the main body (1), an armor (402) is arranged in the insulating cover (401), an optical fiber (403) is arranged in the armor (402), one end of the optical fiber (403) is connected with a signal amplifier (404), a filter (405) is arranged below the signal amplifier (404), and a sensor (5) is arranged in the sensor housing (3).
2. The pressure-bearing protection device of the logging armored optical fiber sensor according to claim 1, wherein the main body (1) is made of stainless steel, and the sensor housing (3) is made of stainless steel.
3. The pressure-bearing protection device of the logging armored optical fiber sensor according to claim 1, wherein the interface (201) and the nut (202) form threaded connection, and the sealing ring (203) is a flexible graphite sealing ring.
4. The pressure-bearing protection device of the logging armored optical fiber sensor according to claim 1, wherein the main body (1) is adhered to an insulating skin (401), and the insulating skin (401) is high-temperature-resistant silica gel.
5. The pressure protection device for a logging armored fiber optic sensor of claim 1, wherein the armor (402) is made of stainless steel, and the armor (402) is in a convoluted form.
6. A logging armoured fibre optic sensor pressure protection device according to claim 1, characterised in that the optical fibre (403) is a carbon coated fibre, the armour (402) being matched in size to the optical fibre (403).
7. The pressure-bearing protection device of a logging armored fiber optic sensor according to claim 1, wherein the optical fiber (403) is electrically connected to the signal amplifier (404), and the optical fiber (403) is electrically connected to the filter (405).
8. The pressure-bearing protection device of the logging armored optical fiber sensor according to claim 1, wherein the main body (1) is in threaded connection with the sensor housing (3), and the sensor housing (3) is fixedly connected with the sensor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321798177.1U CN221074221U (en) | 2023-07-10 | 2023-07-10 | Pressure-bearing protection device of logging armored optical fiber sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321798177.1U CN221074221U (en) | 2023-07-10 | 2023-07-10 | Pressure-bearing protection device of logging armored optical fiber sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221074221U true CN221074221U (en) | 2024-06-04 |
Family
ID=91251794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321798177.1U Active CN221074221U (en) | 2023-07-10 | 2023-07-10 | Pressure-bearing protection device of logging armored optical fiber sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221074221U (en) |
-
2023
- 2023-07-10 CN CN202321798177.1U patent/CN221074221U/en active Active
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