CN205542097U - Oil well is temperature measurement cable in pit - Google Patents
Oil well is temperature measurement cable in pit Download PDFInfo
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- CN205542097U CN205542097U CN201620094046.9U CN201620094046U CN205542097U CN 205542097 U CN205542097 U CN 205542097U CN 201620094046 U CN201620094046 U CN 201620094046U CN 205542097 U CN205542097 U CN 205542097U
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- measuring temperature
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Abstract
The utility model relates to an oil well is temperature measurement cable in pit, include: galvanic couple silk, first nonrust steel pipe, magnesia filler, compensating wires and insulating layer, wherein, the opening part of first nonrust steel pipe is by sealed, the one end setting of galvanic couple silk is in first stainless steel is intraductal, the galvanic couple silk passes the sealed department of first nonrust steel pipe, in sealed department, the other end of galvanic couple silk with compensating wires links to each other, compensating wires sets up in the insulating layer, first stainless steel is intraductal, the galvanic couple silk with pack between the first nonrust steel pipe the magnesia filler, form single -point oil well is temperature measurement cable in pit. In addition, still include the nonrust steel pipe of second, wherein, the opening part of the nonrust steel pipe of second is by sealed, and at least two sets of single -point oil well is temperature measurement cable in pit's one end setting is intraductal at the second stainless steel, single -point oil well is temperature measurement cable in pit's the other end passes the sealed department of the nonrust steel pipe of second, form multiple spot oil well is temperature measurement cable in pit.
Description
Technical field
The utility model relates to Petroleum Production and technical field of measurement and test, particularly to a kind of oil well cable for measuring temperature.
Background technology
Fireflood is a kind of mode of oil-field thick-oil exploitation, and take measures the purpose lighting oil reservoir to reach to drive viscous crude, therefore fire
The temperature of the formation driving block can reach six, 700 degrees Celsius, and live wire position is even more than thousands of degrees Celsius, and at fire
During driving enforcement, the temperature monitoring to stratum is the necessary means taking measures to control fireflood direction speed etc..At present,
Can oil field well implement temperature monitoring cable high-temperature resistant can be to 350 DEG C, this can not reach fireflood block high temperature well
The needs of temperature monitoring, furthermore, with present technology and cost consideration, carry out the temperature monitoring of more than thousand degrees Celsius very in down-hole
Difficult realization.
Utility model content
The purpose of this utility model is for the problems referred to above, proposes a kind of oil well cable for measuring temperature, it is possible to realize beyond live wire
The long term monitoring of fireflood high temperature well downhole temperature.
For achieving the above object, the utility model provides a kind of oil well cable for measuring temperature, including: thermocouple wire, first not
Rust steel pipe, magnesia powder filler, compensating wire and insulating barrier；Wherein,
The opening part of described first stainless steel tube is sealed, and one end of described thermocouple wire is arranged in described first stainless steel tube,
Described thermocouple wire passes at the sealing of the first stainless steel tube；
At sealing, the other end of described thermocouple wire is connected described with described compensating wire；
Described compensating wire is arranged in insulating barrier；
In described first stainless steel tube, fill described magnesia powder between described thermocouple wire and described first stainless steel tube and fill
Thing；Form single-point oil well cable for measuring temperature.
Preferably, the second stainless steel tube is also included；Wherein,
The opening part of described second stainless steel tube is sealed, and one end of at least two group single-point oil well cable for measuring temperature is arranged on
In two stainless steel tubes, the other end of described single-point oil well cable for measuring temperature passes at the sealing of the second stainless steel tube；Formation is many
Point oil well cable for measuring temperature.
Preferably, described thermocouple wire is two.
Preferably, the diameter of described first stainless steel tube is bigger than the diameter of described second stainless steel tube.
Technique scheme has the advantages that the oil well thermometric electricity that the technical program is a kind of resistance to 700 DEG C of high temperature
Cable, it is possible to realize the long term monitoring of fireflood high temperature well downhole temperature beyond live wire.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of oil well cable for measuring temperature structural representation that the utility model proposes.
Accompanying drawing identifies:
1, second stainless steel tube the 2, first stainless steel tube 3, magnesia powder filler 4, thermocouple wire
5, at sealing 6, compensating wire 7, insulating barrier.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of the utility model protection.
The operation principle of the technical program is: this cable for measuring temperature is mainly used in the long-term prison of high temperature well down-hole, oil field multi-point temp
Surveying, cable for measuring temperature is the chief component of oilfield Long-term Monitoring Systems, can be suitably used for the survey of less than 350 DEG C high temperature wells
Temperature cable, the most existing riper technology, but the formation temperature of oil-field thick-oil fireflood exploitation is more than 350 DEG C, this skill
Art scheme proposes a kind of cable for measuring temperature being capable of withstanding 700 DEG C of high temperature.Structurally, use thermocouple temperature measurement, be by a pair electricity
Thermo wires passes stainless steel tube with small diameter, fills therebetween and is dried the insulation of magnesia powder filler, forms single-point cable for measuring temperature, by surveying
Many single-point cable for measuring temperature are through in a big diameter stainless steel pipe by the requirement of warm spot number, form multi-point temperature measurement cable.
On making, by thermocouple through hollow stainless steel column, fill therebetween and be dried magnesia powder insulation, then the electricity of drawing simultaneously
The stainless steel column of even summation, is pulled to require length, forms thermocouple wire, stainless steel tube with small diameter, the opening part of stainless steel tube with small diameter
Sealing with glue, at sealing, thermocouple wire is brought out, and makes single-point cable for measuring temperature, then counts and temperature measurement location requirement by thermometric,
Draw in big diameter stainless steel pipe in by organizing single-point cable for measuring temperature more, make the multi-point temperature measurement cable of resistance to 700 DEG C of temperature.
Here as a example by 3 cable for measuring temperature, detailed description of the invention is described, in practice, at least provided with two groups of single-point thermometric electricity
Cable.
This cable for measuring temperature makes the most rapid:
The first step, the thermocouple a pair top linked together, through hollow stainless steel column, is filled therebetween and is dried magnesia powder
Filler 3 insulate, then drawing thermocouple and hollow stainless steel column simultaneously, forms thermocouple wire 4 and the first stainless steel tube 2 respectively,
In the present embodiment, stainless steel tube with small diameter being referred to as the first stainless steel tube 2, during drawing, continuous fillingization magnesium powder is filled out
Fill thing 3, be pulled to require length, between the first stainless steel tube 2 and thermocouple wire 4 and between a pair thermocouple wire 4, tamp
Magnesia powder filler 3, it is impossible to have contact, then the opening part fluid sealant of the first stainless steel tube 2 carries out glue sealing,
At sealing, 5 draw thermocouple wire 4, and the thermocouple wire 4 of extraction connects compensating wire 6, has insulating barrier 7, make outside compensating wire 6
Single-point cable for measuring temperature.In the technical program, compensating wire forms cascaded structure with thermocouple wire, outside the second stainless steel tube 1
Substitute thermocouple wire, more convenient insulating barrier of preparing with compensating wire, and reduce preparation cost.
Second step, counts and temperature measurement location requirement according to thermometric, draws in big diameter stainless steel pipe in by organizing single-point cable for measuring temperature more,
In the present embodiment, stainless steel tube with small diameter is referred to as the second stainless steel tube 1, here as a example by 3 thermometrics, such as Fig. 1 institute
Show.The single-point cable for measuring temperature made three is drawn in the second stainless steel tube 1 by diverse location, and then top is shut,
The other end draws three single-point cable for measuring temperature, makes 3 cable for measuring temperature.
, use shown in Fig. 1 more than 350 DEG C of high temperature for local downhole temperature in oil-field thick-oil thermal recovery fireflood development scheme
Oil well cable for measuring temperature can carry out down-hole multipoint temperature monitoring to this some oil wells, meets the needs that oil field produces.In down-hole
In the case of temperature is not more than 700 DEG C, it is ensured that the long-term safety of oil well multipoint temperature monitoring is implemented.
Above detailed description of the invention, has been carried out the most specifically the purpose of this utility model, technical scheme and beneficial effect
Bright, be it should be understood that and be these are only detailed description of the invention of the present utility model, be not used to limit the utility model
Protection domain, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done,
Within should be included in protection domain of the present utility model.
Claims (4)
1. an oil well cable for measuring temperature, it is characterised in that including: thermocouple wire, the first stainless steel tube, magnesia powder filler, compensating wire and insulating barrier；Wherein,
The opening part of described first stainless steel tube is sealed, and one end of described thermocouple wire is arranged in described first stainless steel tube, and described thermocouple wire passes at the sealing of the first stainless steel tube；
At sealing, the other end of described thermocouple wire is connected described with described compensating wire；
Described compensating wire is arranged in insulating barrier；
In described first stainless steel tube, between described thermocouple wire and described first stainless steel tube, fill described magnesia powder filler；Form single-point oil well cable for measuring temperature.
2. oil well cable for measuring temperature as claimed in claim 1, it is characterised in that also include the second stainless steel tube；Wherein,
The opening part of described second stainless steel tube is sealed, and one end of at least two group single-point oil well cable for measuring temperature is arranged in the second stainless steel tube, and the other end of described single-point oil well cable for measuring temperature passes at the sealing of the second stainless steel tube；Form multiple spot oil well cable for measuring temperature.
3. oil well cable for measuring temperature as claimed in claim 1 or 2, it is characterised in that described thermocouple wire is two.
4. oil well cable for measuring temperature as claimed in claim 2, it is characterised in that the diameter of described first stainless steel tube is bigger than the diameter of described second stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094046.9U CN205542097U (en) | 2016-01-29 | 2016-01-29 | Oil well is temperature measurement cable in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094046.9U CN205542097U (en) | 2016-01-29 | 2016-01-29 | Oil well is temperature measurement cable in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542097U true CN205542097U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620094046.9U Active CN205542097U (en) | 2016-01-29 | 2016-01-29 | Oil well is temperature measurement cable in pit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205542097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529088A (en) * | 2016-01-29 | 2016-04-27 | 中国石油天然气股份有限公司 | Downhole well temperature measurement cable |
| 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 |
-
2016
- 2016-01-29 CN CN201620094046.9U patent/CN205542097U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529088A (en) * | 2016-01-29 | 2016-04-27 | 中国石油天然气股份有限公司 | Downhole well temperature measurement cable |
| 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 |
| CN109341885B (en) * | 2018-11-08 | 2024-05-21 | 鑫国集团有限公司 | Ultra-long two-point entity armoured thermocouple |
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| GR01 | Patent grant |