CN206832724U - A kind of quick experimental rig for determining insulated tubing heat-proof quality - Google Patents

A kind of quick experimental rig for determining insulated tubing heat-proof quality Download PDF

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Publication number
CN206832724U
CN206832724U CN201720494292.8U CN201720494292U CN206832724U CN 206832724 U CN206832724 U CN 206832724U CN 201720494292 U CN201720494292 U CN 201720494292U CN 206832724 U CN206832724 U CN 206832724U
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CN
China
Prior art keywords
insulated tubing
tube
foil gauge
proof quality
heat
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Application number
CN201720494292.8U
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Chinese (zh)
Inventor
李磊
宋成立
袁军涛
林凯
付安庆
丁晗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Petroleum Corp
CNPC Tubular Goods Research Institute
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China National Petroleum Corp
CNPC Tubular Goods Research Institute
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Priority to CN201720494292.8U priority Critical patent/CN206832724U/en
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Abstract

The utility model discloses a kind of quick experimental rig for determining insulated tubing heat-proof quality, including insulated tubing and the electrically heated rod being sleeved in the insulated tubing, the electrically heated rod is used for the temperature for controlling the insulated tubing, temperature sensor and foil gauge are respectively arranged with the insulated tubing, the temperature sensor and foil gauge are connected with data acquisition and analysis system respectively, compare processing for data.The utility model insulated tubing heat-proof quality quickly determines experimental rig, by the heat transfer conditions that pit shaft in the steam injection process of heating stick simulating underground is installed in pipe, data acquisition is carried out by the temperature sensor in pipe and foil gauge, the screening of insulated tubing can be quickly realized in the heat-proof quality of the simple and crude Oil Field accurate measurement insulated tubing of condition.

Description

A kind of quick experimental rig for determining insulated tubing heat-proof quality
Technical field
The utility model belongs to oil-gas mining engineer applied field, and in particular to a kind of quick determination insulated tubing thermal insulation The experimental rig of energy.
Background technology
Important means of the steam injection recovery as thickened oil recovery, domestic and international each elephant is widely used to, and steam injection is adopted The thermally insulating the borehole technology of oily process is even more to realize the key technology of thickened oil recovery.Vacuum heat-insulation oil pipe by interlayer vacuum-pumping at Reason, reduces convection heat transfer' heat-transfer by convection, so as to realize the effect of thermally insulating the borehole, therefore is widely used to thickened oil recovery field to greatest extent. Heat-proof quality is the key index of insulated tubing production, even more realizes the key of thickened oil recovery.By literature survey, vacuum at present The test of insulated tubing heat-proof quality is mainly evaluated by measuring its apparent heat conductivity, and is mainly carried out in laboratory, is needed Want a whole set of complete test system.However, in actual oil field development production, it is often necessary in the simple and crude oil field development of condition Scene is thermally shielded the heat-proof quality test of oil pipe, quickly to determine its performance, and then ensures continuing for oil field production Reliability service.At present, it is domestic still to lack such place limitation that is not put to the test, and can quickly determine the examination of insulated tubing heat-proof quality Experiment device.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of quick The experimental rig of insulated tubing heat-proof quality is determined, on the basis of the temperature and strain inside and outside measure tubing string, determines insulation oil The heat-proof quality of pipe.
The utility model uses following technical scheme:
A kind of quick experimental rig for determining insulated tubing heat-proof quality, including insulated tubing and be sleeved on described heat-insulated Electrically heated rod in oil pipe, the electrically heated rod are used for the temperature for controlling the insulated tubing, set respectively in the insulated tubing Temperature sensor and foil gauge are equipped with, the temperature sensor and foil gauge are connected with data acquisition and analysis system, be used for respectively Data compare processing.
Further, the insulated tubing includes inner tube and the outer tube that is sleeved on outside said inner tube, said inner tube and outer Heat-barrier material is provided between pipe (1).
Further, the temperature sensor includes the first temperature sensor and second temperature sensor, first temperature Degree sensor and second temperature sensor are correspondingly arranged on the inwall at said inner tube both ends.
Further, the foil gauge includes multiple, is separately positioned in the outer tube and inner tube.
Further, the outer tube outer wall both ends are respectively arranged with the first foil gauge, the second foil gauge, along outer tube section Three foil gauges and the 4th foil gauge, said inner tube outer wall both ends are respectively arranged with the 5th foil gauge, the 6th strain along interior tube section Piece, the 7th foil gauge and the 8th foil gauge.
Further, 90 ° of the foil gauge interval is placed equidistant on the outer tube and inner tube.
Further, the electrically heated rod is connected with heating power regulating system and is used for temperature adjustment.
Compared with prior art, the utility model at least has the advantages that:
The utility model insulated tubing heat-proof quality quickly determines experimental rig, by installing heating stick simulating well in pipe The heat transfer conditions of pit shaft during lower steam injection, data acquisition is carried out by the temperature sensor in pipe and foil gauge, can be in condition The heat-proof quality of simple and crude Oil Field accurate measurement insulated tubing, quickly realizes the screening of insulated tubing.
Further, insulated tubing is made up of inner and outer tubes, by detect insulated tubing heating after inner and outer pipes strain The strain limit of insulated tubing outer tube is determined with information such as temperature, and then actual measurement outer tube is strained into acquisition insulated tubing compared with it Heat-proof quality.The experimental rig and method is simple, algorithm is simple, and reliability is high.
Further, insulated tubing can frequently rise out in use, foil gauge include it is multiple, be separately positioned on heat-insulated It is easy to be quick using stain measuring technology in oil pipe, to the strong adaptability of field condition, it not only can ensure that the use peace of insulated tubing Entirely, and testing inspection cost can be substantially reduced.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model experimental rig schematic diagram;
Fig. 2 is insulated tubing inner and outer pipes hoop strain piece scheme of installation.
Wherein:1. outer tube;2. inner tube;3. heat-barrier material;4. the first temperature sensor;5. second temperature sensor;6. electricity Heating rod;7. heating power regulating system;8. the first foil gauge;9. the second foil gauge;10. the 3rd foil gauge;11. the 4th strain Piece, 12. the 5th foil gauges;13. the 6th foil gauge;14. the 7th foil gauge;15. the 8th foil gauge.
Embodiment
Referring to Fig. 1, the utility model discloses a kind of quick experimental rig for determining insulated tubing heat-proof quality, including Insulated tubing, electrically heated rod 6, heating power regulating system 7, temperature sensor, foil gauge and data acquisition and analysis system, electricity add Hot pin 6 is arranged in the insulated tubing, is connected with the heating power regulating system 7, the temperature sensor be arranged on every On the inwall of deep fat pipe, foil gauge is separately positioned on insulated tubing, and the foil gauge connects with the data acquisition and analysis system Connect, compare processing for data.
The insulated tubing includes inner tube 2 and outer tube 1, and heat-barrier material 3, the temperature are provided between inner tube 2 and outer tube 1 Degree sensor is arranged on the inwall of said inner tube 2, and the foil gauge is separately positioned on the outer tube 1 and the outer wall of inner tube 2.
The foil gauge includes the first foil gauge 8, the second foil gauge 9, the 3rd foil gauge set along the end section of outer tube two 10 and the 4th foil gauge 11, and the 5th foil gauge 12, the 6th foil gauge 13, the 7th foil gauge set along the end section of inner tube two 14 and the 8th foil gauge 15, the first foil gauge 8, the second foil gauge 9, the 3rd foil gauge 10 and the 4th foil gauge 11 are in outer tube section Upper 90 ° of interval is mounted equidistant, and the 5th foil gauge 12, the 6th foil gauge 13, the 7th foil gauge 14 and the 8th foil gauge 15 are in inner tube 90 ° are spaced on section to be mounted equidistant, last each foil gauge is connected with the data acquisition and analysis system.
Experiment prepares:The electrically heated rod that specification matches is inserted in insulated tubing first, while temperature sensor is installed In the inwall of insulated tubing inner tube 2, foil gauge, each section then are installed in the inside and outside wall of body both ends (section AA ' and BB ') 90 ° of interval is mounted equidistant, and is finally connected again with data acquisition and analysis system.The foil gauge distribution map installed is as shown in Figure 2.
Experiment process:First by adjusting heating power regulating system 7, make the inner wall temperature of inner tube 2 stable at 350 DEG C, The strain λ of collection inner tube 2 in real time1With the strain λ of outer tube 10, then according to SY/T 5324-2013 appendix As formula calculate, when regarding Outer tube outer wall temperature T when thermal conductivity factor is 0.1W/ (m DEG C)2, and then try to achieve the calculating strain λ of outer tube2=T2λ1/ 350, so The outer tube actual strain λ that will be collected afterwards0λ is strained with calculating2Compare, if λ0< λ2, then the insulated tubing heat-proof quality is good, It is on the contrary then heat-proof quality is poor.
The electrically heated rod of this experimental rig is arranged to different size series, to match the insulated tubing of different size.
A kind of quick experimental rig for determining insulated tubing heat-proof quality of the utility model can be used for《SY/T 5324-2013 Prestressing force insulated tubing》The defined new and old insulated tubing of all size heat-proof quality test, so as to realize quickly judge it is heat-insulated The purpose of oil pipe performance.
Above content is only to illustrate technological thought of the present utility model, it is impossible to limits protection model of the present utility model with this Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical scheme, each fall within this reality Within protection domain with new claims.

Claims (7)

  1. A kind of 1. quick experimental rig for determining insulated tubing heat-proof quality, it is characterised in that:Including insulated tubing and suit Electrically heated rod (6) in the insulated tubing, the electrically heated rod (6) is used for the temperature for controlling the insulated tubing, described Temperature sensor and foil gauge are respectively arranged with insulated tubing, the temperature sensor and foil gauge divide with data acquisition respectively Analysis system connects, and compares processing for data.
  2. A kind of 2. quick experimental rig for determining insulated tubing heat-proof quality according to claim 1, it is characterised in that:Institute Stating insulated tubing includes inner tube (2) and the outer tube (1) being sleeved on outside said inner tube (2), said inner tube (2) and outer tube (1) it Between be provided with heat-barrier material (3).
  3. A kind of 3. quick experimental rig for determining insulated tubing heat-proof quality according to claim 2, it is characterised in that:Institute Stating temperature sensor includes the first temperature sensor (4) and second temperature sensor (5), first temperature sensor (4) and Second temperature sensor (5) is correspondingly arranged on the inwall at said inner tube (2) both ends.
  4. A kind of 4. quick experimental rig for determining insulated tubing heat-proof quality according to claim 2, it is characterised in that:Institute State foil gauge include it is multiple, be separately positioned on the outer tube (1) and inner tube (2).
  5. A kind of 5. quick experimental rig for determining insulated tubing heat-proof quality according to claim 4, it is characterised in that:Institute State outer tube (1) outer wall both ends and be respectively arranged with the first foil gauge (8), the second foil gauge (9), the 3rd foil gauge along outer tube section (10) and the 4th foil gauge (11), said inner tube (2) outer wall both ends are respectively arranged with the 5th foil gauge (12), along interior tube section Six foil gauges (13), the 7th foil gauge (14) and the 8th foil gauge (15).
  6. A kind of 6. quick experimental rig for determining insulated tubing heat-proof quality according to claim 5, it is characterised in that:Institute 90 ° of foil gauge interval is stated to be placed equidistant on the outer tube and inner tube.
  7. A kind of 7. quick experimental rig for determining insulated tubing heat-proof quality according to claim 1, it is characterised in that:Institute State electrically heated rod (6) and be connected with heating power regulating system (7) and be used for temperature adjustment.
CN201720494292.8U 2017-05-05 2017-05-05 A kind of quick experimental rig for determining insulated tubing heat-proof quality Active CN206832724U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720494292.8U CN206832724U (en) 2017-05-05 2017-05-05 A kind of quick experimental rig for determining insulated tubing heat-proof quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720494292.8U CN206832724U (en) 2017-05-05 2017-05-05 A kind of quick experimental rig for determining insulated tubing heat-proof quality

Publications (1)

Publication Number Publication Date
CN206832724U true CN206832724U (en) 2018-01-02

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CN201720494292.8U Active CN206832724U (en) 2017-05-05 2017-05-05 A kind of quick experimental rig for determining insulated tubing heat-proof quality

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110702729A (en) * 2019-09-19 2020-01-17 中国石油大学(华东) Device and method for testing heat insulation performance of vacuum heat insulation sleeve under simulated frozen soil environment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110702729A (en) * 2019-09-19 2020-01-17 中国石油大学(华东) Device and method for testing heat insulation performance of vacuum heat insulation sleeve under simulated frozen soil environment

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