CN204040920U - Aeroge compound heat-insulation sleeve pipe - Google Patents
Aeroge compound heat-insulation sleeve pipe Download PDFInfo
- Publication number
- CN204040920U CN204040920U CN201420199130.8U CN201420199130U CN204040920U CN 204040920 U CN204040920 U CN 204040920U CN 201420199130 U CN201420199130 U CN 201420199130U CN 204040920 U CN204040920 U CN 204040920U
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- China
- Prior art keywords
- outer tube
- sleeve pipe
- insulation sleeve
- heat
- box cupling
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Abstract
The utility model is a kind of aeroge compound heat-insulation sleeve pipe being applicable to heavy crude heat extraction.The utility model is stifled by interior pipe, aluminium foil, isolation layer (aerosil felt), outer tube, ceramic heat resistant ring, box cupling forms.Outer wall of inner tube parcel aluminium foil, then wrap up aerosil felt, coaxially penetrate outer tube, fill in ceramic heat resistant ring to block up at clad pipe two ends, finally weld inner and outer pipes, make to form enclosed cavity between inner and outer pipes, box cupling and outer tube are threaded connection, and are provided with moment of torsion step in junction.Moment of torsion step and relative outer tube are unfixing, deformable isolation layer; effectively resist the axis and the radial changing of the relative positions that internal stress because producing during the colding and heat succeed each other of interior pipe occurs box cupling and outer tube; thus protect inner and outer pipe and cement sheath; solve the problem that the steam thermal production well that causes because of casing failure is scrapped, ensure that long term stable production.In addition, this utility model effectively can stop heat waste, reduces lower oil tube number of times, shortens injection-production cycle, reduces operating cost, enhances productivity.
Description
Technical field
The utility model relates to the aeroge compound heat-insulation sleeve pipe of heavy crude heat extraction, is oil well pipe class.Get loose for the inner and outer pipes existed in current technology and box cupling, the problem such as distortion; provide comprise that relative outer tube is fixing, deformable aerosil felt isolation layer and there is the compound heat-insulation sleeve pipe of box cupling of moment of torsion step; the axis that interior pipe can be stoped especially to occur box cupling and outer tube and the radial changing of the relative positions, more effectively protect inner and outer pipe and cement sheath is not damaged.
Background technology
Viscous crude resource is very abundant in the world, how to exploit efficiently, is the difficult problem that petroleum industry faces always.Because the viscosity temperature of viscous crude is very responsive, so the Main Means of the thermal process of steam soak heavy oil development gradually.China just has the heavy crude reservoir of 80% to adopt cyclic steam stimulation process exploitation.But the casing failure problem come with thermal recovery technology has had a strong impact on the stability and high efficiency exploitation of oil well.For 08 year Liaohe Oil Field, in the dead well that they are all, have the well of 1/4 to stop production due to casing failure, and these wells mostly are thermal production well.
The feature using the technique of steam soak to recover the oil is periodically.Each cycle is divided into be injected steam, stewing well and stops note oil recovery three phases.During injection steam, sleeve pipe is heated, and because expanding by constraints such as cement sheaths, thus is subject to larger action of compressive stress; When stopping note oil recovery, due to the lax of casing metal material and metamorphosis, sleeve pipe is subject to larger action of pulling stress.Sleeve pipe periodically bears and high draws-action of compressive stress, causes casing failure (or the slippage that is threaded), distortion, and this is the main cause damaged of thermal production well sleeve and cement sheath just.
Utility model content
Namely the utility model provides the aeroge compound heat-insulation sleeve pipe being applicable to heavy crude heat extraction for above-mentioned defect.
To achieve these goals, first aspect of the present utility model provides a kind of aeroge compound heat-insulation sleeve pipe being applicable to heavy crude heat extraction.
According to the aeroge compound heat-insulation sleeve pipe being applicable to heavy crude heat extraction of the present utility model, comprise that interior pipe, aluminium foil, isolation layer (aerosil felt), outer tube, ceramic heat resistant ring are stifled, box cupling.Wrap up aluminium foil and aerosil felt between inner and outer tubes, fill in ceramic heat resistant ring block up at clad pipe two ends, welding inner and outer pipes, box cupling and outer tube are threaded connection, and are provided with moment of torsion step in junction.
Preferably, described outer wall of inner tube parcel aluminium foil.
Preferably, described aluminium foil outer wrapping aerosil felt.
Preferably, the interior pipe being wrapped in aluminium foil and aerosil felt described in coaxially should penetrate outer tube.
Preferably, described aerosil felt, do not fix between aluminium foil and outer tube, rotatably.
Preferably, described ceramic heat resistant ring gets lodged in clad pipe two ends and fills in.
Preferably, two ports of described inner and outer pipes must weld, and make to form enclosed cavity between inner and outer pipes.
Preferably, described weld port needs smooth, meets the shape of box cupling junction.
Preferably, described box cupling and outer tube are threaded connection.
Preferably, described screw thread is on outer tube outer wall.
Preferably, described box cupling is being provided with moment of torsion step with outer tube junction.
Preferably, described outer effective N80 steel.
Preferably, described interior effective N80 steel.
Preferably, described box cupling N80 steel.
Preferably, the thickness of described aerosil felt is 15mm.
The working method of the aeroge compound heat-insulation sleeve pipe of the utility model first aspect is: outer wall of inner tube parcel aluminium foil, wrap up aerosil felt again, coaxially penetrate outer tube, fill in ceramic heat resistant ring at clad pipe two ends and block up, finally weld inner and outer pipes, make to form enclosed cavity between inner and outer pipes; Box cupling and outer tube are threaded connection, and are provided with moment of torsion step in junction; Casing length is by the connection indefinite extension of box cupling in theory.By in sleeve pipe lower going-into-well, and under outer tube outer wall cementing sealing, then carry out steam note adopt.
The aeroge compound heat-insulation sleeve pipe that the utility model first aspect provides can be adopted in process at whole steam note and protect inner and outer pipe and cement sheath not to damage; effective prevention heat waste, shortens injection-production cycle, reduces operating cost; enhance productivity, ensure that long term stable production.
The technical scheme of the aeroge compound heat-insulation sleeve pipe that the utility model first aspect provides comprises any combination of each part mentioned above, and simple change or the combination of each part mentioned above assembly are still protection domain of the present utility model.
Second aspect of the present utility model also provides a kind of aeroge compound heat-insulation sleeve pipe to be applied to the method for steam injection oil recovery, and it comprises the steps:
A. the aeroge compound heat-insulation sleeve pipe made is connected with box cupling;
B. will enter under sleeve pipe in oil well;
C. cementing sealing under outer tube outer wall;
D. steam injection is added through sleeve pipe to stratum, stewing well;
E. recover the oil earthward through sleeve pipe.
Preferably, above step is carried out successively.
Preferably, the gel compound heat-insulation sleeve pipe being applicable to heavy crude heat extraction that provides for the utility model first aspect of described gel compound heat-insulation sleeve pipe.
Preferably, described aeroge compound heat-insulation sleeve pipe is connected by screw thread with box cupling.
Preferably, described aeroge compound heat-insulation sleeve pipe and box cupling connecting place are provided with moment of torsion step.
Preferably, described aeroge compound heat-insulation sleeve pipe and cement are fixed.
Preferably, described box cupling with fix with cement.
Preferably, described steam contacts with aeroge compound heat-insulation sleeve pipe.
Preferably, described oil contacts with aeroge compound heat-insulation sleeve pipe.
More multioperation is all known for those of ordinary skills, repeats no more.
The aeroge compound heat-insulation sleeve pipe that the utility model second aspect provides is applied to any combination that the technical scheme of method that steam injection recovers the oil comprises each part mentioned above, and simple change or the combination of each part mentioned above assembly are still protection domain of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of aeroge compound heat-insulation sleeve pipe according to the utility model first aspect;
Fig. 2 is application process schematic diagram embodiment illustrated in fig. 1.
In Fig. 1, Fig. 2, numeral represents respectively:
Pipe 2 aerosil felt in 1
3 aluminium foil 4 ceramic heat resistant rings block up
5 outer tube 6 box cuplings
Detailed description of the invention
In order to understand the utility model better, describe the preferred embodiment according to the aeroge compound heat-insulation sleeve structure of the utility model first aspect in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation being applicable to a preferred embodiment of the aeroge compound heat-insulation sleeve pipe of heavy crude heat extraction according to the utility model first aspect, in the present embodiment, aeroge compound heat-insulation sleeve pipe comprises that interior pipe 1, isolation layer (aerosil felt) 2, aluminium foil 3, ceramic heat resistant ring are stifled 4, outer tube 5, box cupling 6.
In the present embodiment, described interior pipe 1 outer wall parcel aluminium foil 3.
In the present embodiment, described aluminium foil 3 outer wrapping aerosil felt 2.
In the present embodiment, described in be wrapped in aluminium foil 3 and aerosil felt 2 interior pipe 1 should coaxially penetrate outer tube 5.
In the present embodiment, described aerosil felt 2 and not fixing between aluminium foil 3 and outer tube 5, rotatably.
In the present embodiment, described ceramic heat resistant ring stifled 4 is filled at clad pipe two ends.
In the present embodiment, two ports of described inner and outer pipes must weld, and make to form enclosed cavity between inner and outer pipes.
In the present embodiment, described weld port needs smooth, meets the shape of box cupling junction.
In the present embodiment, described box cupling 6 is threaded connection with outer tube 5.
In the present embodiment, described screw thread is on outer tube 5 outer wall.
In the present embodiment, described box cupling 6 is being provided with moment of torsion step with outer tube 5 junction.
In the present embodiment, the working method of aeroge compound heat-insulation sleeve pipe is: interior pipe 1 outer wall parcel aluminium foil 3, wrap up aerosil felt 2 again, coaxially penetrate outer tube 5, fill in ceramic heat resistant ring stifled 4 at clad pipe two ends, finally weld inner and outer pipes, make to form enclosed cavity between inner and outer pipes; Box cupling 6 and outer tube 5 are threaded connection, and are provided with moment of torsion step in junction; Casing length is by the connection indefinite extension of box cupling in theory.
Fig. 2 is the embodiment illustrated in fig. 1 process schematic being applied to steam injection and recovering the oil, by sleeve pipe lower going-into-well, and under outer tube outer wall cementing sealing, then carry out steam note and adopt.
In the present embodiment, more multioperation is all known for those of ordinary skills, repeats no more.
Aeroge compound heat-insulation sleeve pipe described in the present embodiment can be adopted in process at whole steam note and protect inner and outer pipe and cement sheath not to damage, and effectively stops heat waste, shortens injection-production cycle, reduce operating cost, enhance productivity, ensure that long term stable production.
The technical scheme being applicable to the aeroge compound heat-insulation sleeve pipe of heavy crude heat extraction described in the present embodiment comprises any combination of each part mentioned above, and simple change or the combination of each part mentioned above assembly are still protection domain of the present utility model.
Claims (5)
1. one kind is applicable to the aeroge compound heat-insulation sleeve pipe of heavy crude heat extraction, comprise that interior pipe, aluminium foil, isolation layer, outer tube, ceramic heat resistant ring are stifled, box cupling, it is characterized in that: outer wall of inner tube parcel aluminium foil, wrap up aerosil felt again, coaxially penetrate outer tube, fill in ceramic heat resistant ring at clad pipe two ends and block up, finally weld inner and outer pipes, make to form enclosed cavity between inner and outer pipes, box cupling and outer tube are threaded connection, and are provided with moment of torsion step in junction.
2. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: at aluminium foil outer wrapping isolation layer.
3. aeroge compound heat-insulation sleeve pipe as claimed in claim 2, is characterized in that: described isolation layer, mutually do not fix between aluminium foil and outer tube three, rotatably.
4. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: weld port needs smooth, meets the shape of box cupling junction, ensures sealing.
5. aeroge compound heat-insulation sleeve pipe as claimed in claim 4, is characterized in that: screw thread is on outer tube outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199130.8U CN204040920U (en) | 2014-04-23 | 2014-04-23 | Aeroge compound heat-insulation sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199130.8U CN204040920U (en) | 2014-04-23 | 2014-04-23 | Aeroge compound heat-insulation sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204040920U true CN204040920U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199130.8U Expired - Fee Related CN204040920U (en) | 2014-04-23 | 2014-04-23 | Aeroge compound heat-insulation sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204040920U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422812A (en) * | 2015-12-04 | 2016-03-23 | 北京华航无线电测量研究所 | Detector drive mechanism in petroleum well |
| CN106761440A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | Aerogel heat-proof oil pipe |
| CN109986303A (en) * | 2018-01-02 | 2019-07-09 | 中国石油化工股份有限公司 | The manufacturing method of aerogel heat-proof oil pipe |
| CN110345155A (en) * | 2019-07-16 | 2019-10-18 | 南通通途机电制造有限公司 | A kind of surface layer reprocess fire-retardant axle sleeve and its processing technology |
-
2014
- 2014-04-23 CN CN201420199130.8U patent/CN204040920U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761440A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | Aerogel heat-proof oil pipe |
| CN105422812A (en) * | 2015-12-04 | 2016-03-23 | 北京华航无线电测量研究所 | Detector drive mechanism in petroleum well |
| CN105422812B (en) * | 2015-12-04 | 2018-05-15 | 北京华航无线电测量研究所 | A kind of oil borehole geophone driving mechanism |
| CN109986303A (en) * | 2018-01-02 | 2019-07-09 | 中国石油化工股份有限公司 | The manufacturing method of aerogel heat-proof oil pipe |
| CN110345155A (en) * | 2019-07-16 | 2019-10-18 | 南通通途机电制造有限公司 | A kind of surface layer reprocess fire-retardant axle sleeve and its processing technology |
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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 |
Granted publication date: 20141224 Termination date: 20160423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |