CN103883263A - Aerogel composite heat insulation sleeve - Google Patents
Aerogel composite heat insulation sleeve Download PDFInfo
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- CN103883263A CN103883263A CN201410164134.7A CN201410164134A CN103883263A CN 103883263 A CN103883263 A CN 103883263A CN 201410164134 A CN201410164134 A CN 201410164134A CN 103883263 A CN103883263 A CN 103883263A
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- insulation sleeve
- outer tube
- sleeve pipe
- tube
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Abstract
The invention discloses an aerogel composite heat insulation sleeve suitable for heavy oil thermal recovery. The aerogel composite heat insulation sleeve is composed of an inner tube, aluminum foil, a heat insulation layer (silicon dioxide aerogel felt), an outer tube, ceramic heat-resisting ring plugs and a coupler. The outer wall of the inner tube is wrapped with the aluminum foil and then is wrapped with the silicon dioxide aerogel felt. The inner tube penetrates through the outer tube coaxially. The ceramic heat-resisting ring plugs are plugged into the two ends of a composite sleeve body, finally, the inner tube and the outer tube are welded, then a closed cavity is formed between the inner tube and the outer tube, the coupler is connected with the outer tube through threads, and a torque step is arranged at the position where the coupler and the outer tube are connected. By the torque step and the heat insulation layer which is fixed and does not deform relative to the outer tube, axial and radial shifting of the coupler and the outer tube due to internal stress caused by alternate cooling and heating of the inner tube is effectively resisted, and thus the inner tube, the outer tube and a cement sheath are protected, the problem that a thermal recovery well is scrapped when the sleeve is damaged is solved, and long-term stable production is guaranteed. In addition, heat losses are effectively reduced, the number of times for lifting or downwards placing an oil tube is decreased, the injection and recovery period is shortened, operation cost is lowered, and production efficiency is improved.
Description
Technical field
The present invention relates to the aeroge compound heat-insulation sleeve pipe of heavy crude heat extraction, is oil well pipe class.For the inner and outer pipes existing in current technology and box cupling get loose, 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 the box cupling of moment of torsion step; can stop especially that inner tube occurs box cupling and outer tube axially and the radially changing of the relative positions, more effective inner and outer pipe and the cement sheath protected is not damaged.
Background technology
Viscous crude resource is very abundant in the world, and how efficiently exploitation is the difficult problem that petroleum industry faces always.Because the viscosity temperature of viscous crude is very responsive, so the thermal process of the steam soak Main Means of heavy oil development gradually.Just there is 80% heavy crude reservoir employing cyclic steam stimulation process exploitation in China.But follow thermal recovery technology and the casing failure problem come has had a strong impact on the stability and high efficiency exploitation of oil well.Take 08 year Liaohe Oil Field as example, in its all dead well, have 1/4 well because casing failure stops production, and these wells mostly are thermal production well.
The feature that uses the technique of steam soak to recover the oil is periodically.Each cycle is divided into steam injection, stewing well and stops noting oil recovery three phases.When steam injection, sleeve pipe is heated, and because cannot expand by the constraints such as cement sheath, thereby is subject to larger action of compressive stress; While stopping note oil recovery, due to the lax and metamorphosis of sleeve pipe metal material, sleeve pipe is subject to larger action of pulling stress.Sleeve pipe periodically bears the high action of compressive stress of drawing, and causes casing failure (or the slippage that is threaded), distortion, this main cause that thermal production well sleeve and cement sheath damage just.
Summary of the invention
The present invention provides for above-mentioned defect the aeroge compound heat-insulation sleeve pipe that is applicable to heavy crude heat extraction.
To achieve these goals, a first aspect of the present invention provides a kind of aeroge compound heat-insulation sleeve pipe that is applicable to heavy crude heat extraction.
According to the aeroge compound heat-insulation sleeve pipe that is applicable to heavy crude heat extraction of the present invention, comprise that inner tube, aluminium foil, isolation layer (aerosil felt), outer tube, ceramic heat-resistant rings are blocked up, box cupling.Between inner and outer tubes, wrap up aluminium foil and aerosil felt, fill in ceramic heat-resistant rings at clad pipe two ends stifled, 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 inner tube that is wrapped in aluminium foil and aerosil felt described in should coaxially penetrate outer tube.
Preferably, unfixing, rotatable between described aerosil felt, aluminium foil and outer tube.
Preferably, described ceramic heat-resistant rings gets lodged in clad pipe two ends and fills in.
Preferably, two ports of described inner and outer pipes must welding, makes to form between inner and outer pipes enclosed cavity.
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 first aspect present invention is: outer wall of inner tube parcel aluminium foil, wrap up again aerosil felt, coaxially penetrate outer tube, fill in ceramic heat-resistant rings at clad pipe two ends stifled, finally weld inner and outer pipes, make to form between inner and outer pipes enclosed cavity; Box cupling and outer tube are threaded connection, and are provided with moment of torsion step in junction; Casing length can infinitely extend by the connection 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 and adopt.
The aeroge compound heat-insulation sleeve pipe that first aspect present invention provides can protect inner and outer pipe and cement sheath not to damage in whole steam note is adopted process, effectively stops heat waste, shortens injection-production cycle, reduces operating cost, enhances productivity, and has guaranteed long term stable production.
The technical scheme of the aeroge compound heat-insulation sleeve pipe that first aspect present invention provides comprises any combination of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection scope of the present invention.
A second aspect of the present invention also provides a kind of aeroge compound heat-insulation sleeve pipe to be applied to the method that steam injection is recovered the oil, and it comprises the steps:
A. the aeroge compound heat-insulation sleeve pipe of making is connected with box cupling;
B. sleeve pipe is lowered in oil well;
C. cementing sealing under outer tube outer wall;
D. add steam injection 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 that is applicable to heavy crude heat extraction that described gel compound heat-insulation sleeve pipe provides for first aspect present invention.
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 second aspect present invention provides is applied to any combination that the technical scheme of method that steam injection recovers the oil comprises each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection scope of the present invention.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of a preferred embodiment of the aeroge compound heat-insulation sleeve pipe of first aspect present invention;
Fig. 2 is application process schematic diagram embodiment illustrated in fig. 1.
In Fig. 1, Fig. 2, numeral represents respectively:
1 inner tube 2 aerosil felts
The ceramic heat-resistant rings of 3 aluminium foil 4 is stifled
5 outer tube 6 box cuplings
The specific embodiment
In order to understand better the present invention, describe in detail according to the preferred embodiment of the aeroge compound heat-insulation sleeve structure of first aspect present invention below in conjunction with accompanying drawing.
Fig. 1 is according to the structural representation of a preferred embodiment of the aeroge compound heat-insulation sleeve pipe that is applicable to heavy crude heat extraction of first aspect present invention, in the present embodiment, aeroge compound heat-insulation sleeve pipe comprises that inner tube 1, isolation layer (aerosil felt) 2, aluminium foil 3, ceramic heat-resistant rings are stifled 4, outer tube 5, box cupling 6.
In the present embodiment, described inner tube 1 outer wall parcel aluminium foil 3.
In the present embodiment, described aluminium foil 3 outer wrapping aerosil felts 2.
In the present embodiment, described in be wrapped in aluminium foil 3 and aerosil felt 2 inner tube 1 should coaxially penetrate outer tube 5.
In the present embodiment, unfixing, rotatable between described aerosil felt 2 and aluminium foil 3 and outer tube 5.
In the present embodiment, described ceramic heat-resistant rings stifled 4 is filled at clad pipe two ends.
In the present embodiment, two ports of described inner and outer pipes must welding, makes to form between inner and outer pipes enclosed cavity.
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 walls.
In the present embodiment, described box cupling 6 is being provided with moment of torsion step with outer tube 5 junctions.
In the present embodiment, the working method of aeroge compound heat-insulation sleeve pipe is: inner tube 1 outer wall parcel aluminium foil 3, wrap up again aerosil felt 2, coaxially penetrate outer tube 5, fill in ceramic heat-resistant rings stifled 4 at clad pipe two ends, finally weld inner and outer pipes, make to form between inner and outer pipes enclosed cavity; Box cupling 6 is threaded connection with outer tube 5, and is provided with moment of torsion step in junction; Casing length can infinitely extend by the connection of box cupling in theory.
Fig. 2 is the embodiment illustrated in fig. 1 process schematic diagram that steam injection is recovered the oil that is applied to, 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 protect inner and outer pipe and cement sheath not to damage in whole steam note is adopted process, effectively stops heat waste, shortens injection-production cycle, reduces operating cost, enhances productivity, and has guaranteed long term stable production.
The technical scheme of the aeroge compound heat-insulation sleeve pipe that is applicable to heavy crude heat extraction described in the present embodiment comprises any combination of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection scope of the present invention.
Claims (11)
1. be applicable to an aeroge compound heat-insulation sleeve pipe for heavy crude heat extraction, comprise that inner tube, aluminium foil, isolation layer, outer tube, ceramic heat-resistant rings are blocked up, box cupling.
2. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: at outer wall of inner tube parcel aluminium foil.
3. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: at aluminium foil outer wrapping isolation layer.
4. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: the inner tube of parcel aluminium foil and isolation layer is coaxially penetrated to inner tube.
5. the aeroge compound heat-insulation sleeve pipe as described in claim 3 and 4, is characterized in that: unfixing, rotatable between described isolation layer and aluminium foil and outer tube.
6. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: fill in ceramic heat-resistant rings at clad pipe two ends stifled.
7. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: finally weld two ports of inner and outer pipes, make to form between inner and outer pipes enclosed cavity.
8. aeroge compound heat-insulation sleeve pipe as claimed in claim 7, is characterized in that: weld port needs smooth, meets the shape of box cupling junction, guarantees sealing.
9. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: box cupling and outer tube are threaded connection.
10. aeroge compound heat-insulation sleeve pipe as claimed in claim 1, is characterized in that: screw thread is on outer tube outer wall.
11. aeroge compound heat-insulation sleeve pipes as claimed in claim 9, is characterized in that: box cupling and outer tube are provided with moment of torsion step by junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164134.7A CN103883263A (en) | 2014-04-23 | 2014-04-23 | Aerogel composite heat insulation sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164134.7A CN103883263A (en) | 2014-04-23 | 2014-04-23 | Aerogel composite heat insulation sleeve |
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| CN103883263A true CN103883263A (en) | 2014-06-25 |
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| CN201410164134.7A Pending CN103883263A (en) | 2014-04-23 | 2014-04-23 | Aerogel composite heat insulation sleeve |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058614A (en) * | 2018-08-17 | 2018-12-21 | 安徽奥丰汽车配件有限公司 | A kind of rubber vehicle sebific duct |
| CN109630034A (en) * | 2018-11-20 | 2019-04-16 | 山东美生热能科技有限公司 | Insulated tubing and its manufacturing method with resistance hydrogen impregnation coating |
| CN109630033A (en) * | 2018-11-20 | 2019-04-16 | 山东美生热能科技有限公司 | Long-life insulated tubing and its manufacturing method |
| CN109653686A (en) * | 2018-11-20 | 2019-04-19 | 山东美生热能科技有限公司 | Long-life insulated tubing and its manufacturing method with resistance hydrogen impregnation coating |
| CN109899000A (en) * | 2017-12-08 | 2019-06-18 | 中国石油化工股份有限公司 | A kind of casing nipple |
| CN110165091A (en) * | 2018-05-16 | 2019-08-23 | 北京机电工程研究所 | Thermal cell outer housing and thermal cell |
| CN111535769A (en) * | 2020-05-08 | 2020-08-14 | 中国石油大学(华东) | Anti-settling system, checking method, checking system and system for preventing target well from settling |
| CN114151653A (en) * | 2021-12-09 | 2022-03-08 | 上海大音希声新型材料有限公司 | Heat-insulating aerogel sleeve block group for square-shaped pipeline |
| CN115182710A (en) * | 2021-11-17 | 2022-10-14 | 中国石油大学(华东) | Method for improving thick oil thermal recovery development effect by using aerogel nano fluid |
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| CN201330593Y (en) * | 2008-08-01 | 2009-10-21 | 辽河石油勘探局 | Novel vacuum insulation over flow device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899000A (en) * | 2017-12-08 | 2019-06-18 | 中国石油化工股份有限公司 | A kind of casing nipple |
| CN110165091A (en) * | 2018-05-16 | 2019-08-23 | 北京机电工程研究所 | Thermal cell outer housing and thermal cell |
| CN110165091B (en) * | 2018-05-16 | 2022-09-09 | 北京机电工程研究所 | Thermal battery shell and thermal battery |
| CN109058614B (en) * | 2018-08-17 | 2020-07-14 | 安徽奥丰汽车配件有限公司 | Rubber hose for vehicle |
| CN109058614A (en) * | 2018-08-17 | 2018-12-21 | 安徽奥丰汽车配件有限公司 | A kind of rubber vehicle sebific duct |
| CN109653686A (en) * | 2018-11-20 | 2019-04-19 | 山东美生热能科技有限公司 | Long-life insulated tubing and its manufacturing method with resistance hydrogen impregnation coating |
| CN109630033A (en) * | 2018-11-20 | 2019-04-16 | 山东美生热能科技有限公司 | Long-life insulated tubing and its manufacturing method |
| CN109630034A (en) * | 2018-11-20 | 2019-04-16 | 山东美生热能科技有限公司 | Insulated tubing and its manufacturing method with resistance hydrogen impregnation coating |
| CN111535769A (en) * | 2020-05-08 | 2020-08-14 | 中国石油大学(华东) | Anti-settling system, checking method, checking system and system for preventing target well from settling |
| CN111535769B (en) * | 2020-05-08 | 2022-03-29 | 中国石油大学(华东) | Anti-settling system, checking method, checking system and system for preventing target well from settling |
| CN115182710A (en) * | 2021-11-17 | 2022-10-14 | 中国石油大学(华东) | Method for improving thick oil thermal recovery development effect by using aerogel nano fluid |
| CN115182710B (en) * | 2021-11-17 | 2023-07-14 | 中国石油大学(华东) | Method for improving thick oil thermal recovery development effect by aerogel nano fluid |
| CN114151653A (en) * | 2021-12-09 | 2022-03-08 | 上海大音希声新型材料有限公司 | Heat-insulating aerogel sleeve block group for square-shaped pipeline |
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Application publication date: 20140625 |