CN2292901Y - Annular temp. monitor for thermal recovery well of viscous crude - Google Patents
Annular temp. monitor for thermal recovery well of viscous crude Download PDFInfo
- Publication number
- CN2292901Y CN2292901Y CN97223266U CN97223266U CN2292901Y CN 2292901 Y CN2292901 Y CN 2292901Y CN 97223266 U CN97223266 U CN 97223266U CN 97223266 U CN97223266 U CN 97223266U CN 2292901 Y CN2292901 Y CN 2292901Y
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- CN
- China
- Prior art keywords
- thermocouple
- viscous crude
- thermal recovery
- nickel
- insulating layer
- 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
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Abstract
The utility model provides an annular temperature monitor for the thermal recovery wells of viscous crude in oil exploitation, which firstly solves the problem of monitoring the annular temperature of thermal recovery wells of viscous crude in oil fields in China. The utility model is characterized in that thermocouple wires which are processed by using nickel, chromium, nickel and silicon are processed into four sets of thermocouples, the thermocouples and tetrafluoroethylene materials can be made into a thermocouple bundle by pulling once, and the thermocouple bundle is connected with a secondary instrument on the ground, so that underground monitoring and ground reading can be realized. The utility model has the advantages of small size and accurate temperature measurement, and is suitable for temperature of thermal recovery wells of viscous crude in oil fields.
Description
The utility model is applicable to a kind of oil exploitation, thick oil thermal extraction annular space temperature monitor.
China's oil-field thick-oil heating exploitation technology is to inject saturated vapor to the down-hole oil reservoir at present, heat with steam reduces the stratum viscosity of thickened oil, reach the purpose of exploitation, in order to improve the steam mass dryness fraction of injecting oil reservoir at 2000 meters or need the heat waste of degree of depth gas injection tubing string, heat-insulating techniques such as heat insulation gas injection tubing string and downhole packer have been adopted, in production practices, how to observe its effect, still do not have detection means at present.
At above-mentioned situation, to be that design is a kind of can be lowered to 2000 meters or need depth monitoring oil thermal recovery well annular space temperature monitor with the annular space of oil well to the purpose of this utility model, thereby at first solved the monitoring problem of thick oil thermal extraction annular space temperature in China.
The utility model is mainly by the thermocouple that has insulating layer (2) (3) of measuring downhole temperature, be distributed in outside the zero line (4) that has insulating layer (5), and be fixed outside in the pillar (1) by airtight and watertight padding (6), be achieved in that at first by designing requirement, buy material requested, then become the thermocouple wire of design length with nickel chromium triangle nisiloy (Nicrnisi) materials processing by accompanying drawing, be reprocessed into four groups of nickelchromium-nickelsiliconthermocouples (3), with special equipment four groups of thermocouples and tetrafluoroethene material once are drawn into the thermocouple bundle, the thermocouple bundle is made of polytetrafluoroethylmaterial material and is filled insulation, it withstand voltage and sealing are done outer pillar (1) with 1 chromium 18 nickel, 9 titanium stainless steel tubes (∮ 8), and thick oil thermal extraction annular space temperature monitor then is formed by connecting thermocouple bundle and ground secondary meter; This instrument can be lowered to 2000 meters of well depths or need the degree of depth to carry out underground monitoring from the thermal production well annular space, can monitor 2000,1900,1800 simultaneously, four point (or multiple spot) temperature of 1700m, monitored data can directly pass ground and insert the ground secondary meter, the underground monitoring result can be directly read through computing, the temperature variation curve of each monitoring point can also be write down automatically.
The utility model compared with prior art, have heatproof, withstand voltage, volume is little, thermometric is accurate, the efficient advantages of higher, and can draw temperature variation curve automatically, it has solved thermal production well annular space monitoring technology.For understanding the heat waste that thick oil thermal extraction injects steam process, provide the monitoring means of science.
Accompanying drawing is a structural representation of the present utility model.1 is outer pillar among the figure, the 2nd, and thermocouple insulating layer, the 3rd, thermocouple, the 4th, zero line, the 5th, zero line insulating layer, the 6th, airtight and watertight padding.
Below in conjunction with accompanying drawing an embodiment is described.At first arrive market or the purchase of instrument material research institute: polytetrafluoroethylene (PTFE) by designing requirement, nickel chromium triangle nisiloy (Nicrisi), 1 chromium, 18 nickel, 9 titaniums materials such as (IcY18Ni9Ti), do outer pillar (1) with withstand voltage stainless steel tube (1 chromium, 18 nickel, 9 titaniums), become 2000 meters or need length heat to meet thermo wires (∮=0.5mm) with the materials processing of nickel chromium triangle nisiloy, be reprocessed into four groups of nickelchromium-nickelsiliconthermocouples (3), with special equipment four groups of thermocouples and polytetrafluoroethylmaterial material once are drawn into thermocouple, do the insulating layer (2) of thermocouple and the insulating layer (5) of zero line with silica gel, the zero line of having bought (4) is inserted in the insulating layer (5), each thermocouple all is inserted in the insulating layer (2), do airtight and watertight padding (6) with polytetrafluoroethylene (PTFE), the zero line (4) that will be inserted in the thermocouple (3) of insulating layer by accompanying drawing then and package insulating layer is distributed in the outer pillar (1), zero line (4) is positioned at the center, then in thermocouple (3), the airtight and watertight padding (6) of packing between the inwall of the outer pillar of zero line (4) (1).Then it is connected with the ground secondary meter and has then constituted thick oil thermal extraction annular space temperature monitor.
Claims (1)
1, the thick oil thermal extraction annular space temperature monitor used of a kind of oil exploitation, it is mainly by the thermocouple that has insulating layer (2) (3) of measuring downhole temperature, be distributed in outside the zero line (4) that has insulating layer (5), and be fixed in the outer pillar (1) by airtight and watertight padding (6) and constitute, it is characterized in that:
A. use nickel chromium triangle nisiloy (NicYNisi) materials processing to become the thermocouple wire of design length, be reprocessed into four groups of nickelchromium-nickelsiliconthermocouples (3), and itself and tetrafluoroethene material once are drawn into the thermocouple bundle;
B. use stainless steel tube: 1 chromium 18 nickel, 9 titaniums (1cr18Ni9Ti) are made outer pillar (1);
C. the thermocouple bundle is made of polytetrafluoroethylmaterial material and is filled insulation;
D. the thermocouple bundle is connected with the ground secondary meter, can undergroundly detect the ground directly-reading testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97223266U CN2292901Y (en) | 1997-05-30 | 1997-05-30 | Annular temp. monitor for thermal recovery well of viscous crude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97223266U CN2292901Y (en) | 1997-05-30 | 1997-05-30 | Annular temp. monitor for thermal recovery well of viscous crude |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292901Y true CN2292901Y (en) | 1998-09-30 |
Family
ID=33938050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97223266U Expired - Fee Related CN2292901Y (en) | 1997-05-30 | 1997-05-30 | Annular temp. monitor for thermal recovery well of viscous crude |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292901Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182768B (en) * | 2007-12-07 | 2012-05-23 | 沈阳东大传感技术有限公司 | Ultra-thick oil down-hole temperature, pressure double parameter (multi-point) dynamic measurement system |
| 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 |
-
1997
- 1997-05-30 CN CN97223266U patent/CN2292901Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182768B (en) * | 2007-12-07 | 2012-05-23 | 沈阳东大传感技术有限公司 | Ultra-thick oil down-hole temperature, pressure double parameter (multi-point) dynamic measurement system |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |