CN201306168Y - A multi-point thermocouple for high-temperature ultra-long oil well - Google Patents
A multi-point thermocouple for high-temperature ultra-long oil well Download PDFInfo
- Publication number
- CN201306168Y CN201306168Y CNU2008202113841U CN200820211384U CN201306168Y CN 201306168 Y CN201306168 Y CN 201306168Y CN U2008202113841 U CNU2008202113841 U CN U2008202113841U CN 200820211384 U CN200820211384 U CN 200820211384U CN 201306168 Y CN201306168 Y CN 201306168Y
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- CN
- China
- Prior art keywords
- thermocouple
- oil well
- thermocouples
- temperature
- armoured
- 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.)
- Expired - Fee Related
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a multi-point thermocouple for high-temperature ultra-long oil well, which is characterized in that a plurality of armoured thermocouples in echelon arrangement on temperature measuring end form a bundle; stainless steel belts are wound, coated and welded on the outer surface of the thermocouples; the end parts of the thermocouples are sealed. As an independent single armoured thermocouple is adopted in the interior of the utility model, the service temperature can reach below 800 DEG C; the combination and shell connection phenomenon are prevented in machining or use process; meanwhile, the temperature measuring accuracy is not affected when the external protection pipe has water leakage or gas leakage situation.
Description
Technical field:
The utility model relates generally to a kind of thermocouple, relates in particular to a kind of high temperature overlength oil well multiple spot thermocouple that includes a plurality of thermocouples unit.
Background technology:
The principle of thermocouple is: with two kinds of different alloy materials, one end melting welding connection, the other end are connected secondary meter.With melting welding link (being the thermometric end), put into the temperature field.Two different alloy materials will produce small generating positive and negative voltage this moment, the voltage difference that produces in the warm place of different temperatures.Logical secondary meter carries out signal and amplifies, linearization process, compensation.Show a temperature temperature, thereby reach the purpose of thermometric.Thermocouple group much more commonly used or single group thermo wires separate its metal thermometric thermo wires with insulation materials with poly-tetrafluoro and mica tape or glass braid, and it is in aggregates to carry out drawing in the steel pipe of packing into, after carry out technical finesse, be processed to form multiple spot overlength oil well thermocouple.But it has following shortcoming: be subjected to the restriction of its insulation materials, maximum operation (service) temperature is no more than 300 ℃; In manufacturing or use, because of the insulation materials reason, yield rate is low, very easily causes and the road body contact, influences temperature measurement accuracy; Its outer protection tube directly causes product rejection once leak or leak gas.
The utility model content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of high temperature overlength oil well multiple spot thermocouple to be provided, and its length overlength can be used for deep-well, and can measure the temperature of different warm areas simultaneously, and is simple in structure, easy to use.
The utility model is achieved through the following technical solutions:
High temperature overlength oil well multiple spot thermocouple is characterized in that: a plurality of armoured thermocouples that thermometric end echelon is arranged also become a branch of, and reel with stainless steel band in its outside and welding coats and the end sealing.
Described high temperature overlength oil well multiple spot thermocouple; it is characterized in that: described armoured thermocouple is made up of protection metal pipe, insulation materials and thermocouple wire; described thermocouple wire is positioned at protection metal pipe, is filled with magnesia powder between protection metal pipe and thermocouple wire.
The utility model adopts stainless steel band to reel and welding, coats outside the armoured thermocouple bundle of back, can make the thermocouple of length overlength.The thermometric end echelon of a plurality of thermocouples is arranged, and can measure the temperature of diverse location.The utlity model has withstand voltage, antidetonation, can disturb, characteristics such as miniaturization, thermal response time are fast, easy for installation, long service life, mechanical strength are good.
The utility model has the advantages that:
Because inner employing the of the present utility model is that separate single is propped up armoured thermocouple; so its serviceability temperature can arrive below 800 ℃: can not cause in processing or when using and phenomenon such as road body contact; and protection tube leaks or gas leak phenomenon when taking place outside, also can not influence its thermometric effect.
Description of drawings:
Accompanying drawing is the utility model structural representation.
The specific embodiment:
High temperature overlength oil well multiple spot thermocouple, a plurality of armoured thermocouples 3 that thermometric end 2 echelons are arranged also become a branch of, and reel with stainless steel band 1 in its outside and welding coats and end sealing (in fact becoming metal sleeve).Armoured thermocouple is made up of protection metal pipe, insulation materials and thermocouple wire, and described thermocouple wire is positioned at protection metal pipe, is filled with magnesia powder between protection metal pipe and thermocouple wire.
Claims (2)
1, high temperature overlength oil well multiple spot thermocouple is characterized in that: a plurality of armoured thermocouples that thermometric end echelon is arranged also become a branch of, and reel with stainless steel band in its outside and welding coats and the end sealing.
2, high temperature overlength oil well multiple spot thermocouple according to claim 1; it is characterized in that: described armoured thermocouple is made up of protection metal pipe, insulation materials and thermocouple wire; described thermocouple wire is positioned at protection metal pipe, is filled with magnesia powder between protection metal pipe and thermocouple wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202113841U CN201306168Y (en) | 2008-12-19 | 2008-12-19 | A multi-point thermocouple for high-temperature ultra-long oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202113841U CN201306168Y (en) | 2008-12-19 | 2008-12-19 | A multi-point thermocouple for high-temperature ultra-long oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306168Y true CN201306168Y (en) | 2009-09-09 |
Family
ID=41098634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202113841U Expired - Fee Related CN201306168Y (en) | 2008-12-19 | 2008-12-19 | A multi-point thermocouple for high-temperature ultra-long oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306168Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272249A (en) * | 2013-06-14 | 2013-09-04 | 山东新华医疗器械股份有限公司 | Sterilization cabinet provided with multicore temperature probe |
| CN109186791A (en) * | 2018-07-24 | 2019-01-11 | 江苏兆龙电气有限公司 | A kind of overlength thermocouple processing technology |
| CN109176035A (en) * | 2018-07-24 | 2019-01-11 | 江苏兆龙电气有限公司 | A kind of overlength thermocouple special processing equipment |
| CN109341885A (en) * | 2018-11-08 | 2019-02-15 | 鑫国集团有限公司 | A kind of two point entity armoured thermocouple of overlength |
| CN109396210A (en) * | 2018-11-08 | 2019-03-01 | 鑫国集团有限公司 | A kind of dedicated electrometric sensor in oil field |
| CN116291394A (en) * | 2023-03-23 | 2023-06-23 | 中国地质大学（北京） | Shallow well soil layer stepped geothermal temperature measurement drilling device |
-
2008
- 2008-12-19 CN CNU2008202113841U patent/CN201306168Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272249A (en) * | 2013-06-14 | 2013-09-04 | 山东新华医疗器械股份有限公司 | Sterilization cabinet provided with multicore temperature probe |
| CN109186791A (en) * | 2018-07-24 | 2019-01-11 | 江苏兆龙电气有限公司 | A kind of overlength thermocouple processing technology |
| CN109176035A (en) * | 2018-07-24 | 2019-01-11 | 江苏兆龙电气有限公司 | A kind of overlength thermocouple special processing equipment |
| CN109341885A (en) * | 2018-11-08 | 2019-02-15 | 鑫国集团有限公司 | A kind of two point entity armoured thermocouple of overlength |
| CN109396210A (en) * | 2018-11-08 | 2019-03-01 | 鑫国集团有限公司 | A kind of dedicated electrometric sensor in oil field |
| CN109341885B (en) * | 2018-11-08 | 2024-05-21 | 鑫国集团有限公司 | Ultra-long two-point entity armoured thermocouple |
| CN116291394A (en) * | 2023-03-23 | 2023-06-23 | 中国地质大学（北京） | Shallow well soil layer stepped geothermal temperature measurement drilling device |
| CN116291394B (en) * | 2023-03-23 | 2024-02-02 | 中国地质大学（北京） | Shallow well soil layer stepped geothermal temperature measurement drilling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20161219 |