CN2315290Y - Thermal production packer of marmen spring - Google Patents
Thermal production packer of marmen spring Download PDFInfo
- Publication number
- CN2315290Y CN2315290Y CN 97246457 CN97246457U CN2315290Y CN 2315290 Y CN2315290 Y CN 2315290Y CN 97246457 CN97246457 CN 97246457 CN 97246457 U CN97246457 U CN 97246457U CN 2315290 Y CN2315290 Y CN 2315290Y
- Authority
- CN
- China
- Prior art keywords
- memory alloy
- alloy spring
- main shaft
- bimetal leaf
- eel
- 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
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 239000000295 fuel oil Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 229920003266 Leaf® Polymers 0.000 description 8
- 230000008602 contraction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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Abstract
The utility model belongs to a sealing tool for the underground thermal recovery work of thick oil. By the adoption of a bar-shaped bimetallic venturi tube, the accuracy of deformation in the middle is ensured. Radial extension of distant memory alloys can ensure that the deformation can occur in the center, so that the usual mode of using a biasing spring (a balancing spring) can be replaced; the combined action of arc-shaped bimetal and a double-layer elastic cylinder which are contracted can play a role in compressing the memory alloy to restore to an original shape. The service efficiency of heat-sensitive material is enhanced. The utility model has the advantages of simple structural design, convenient operation, good sealing performance, reliable unsealing and low cost.
Description
The utility model belongs to the thermal packer of a kind of sealing tool, particularly a kind of memory alloy spring in the thermal recovery operation under the heavy oil wells.
In the thickened oil recovery, carry out layering injection hot high pressure steam to desiring to adopt heavy oil tested layer, so that effectively utilize vapours, must adopt sealing device, promptly during heat is annotated, packer is in the Expansion sealing state, packer Yin Wendu reduces and is in contraction state during stopping annotating, therefore at present the thermal packer that uses is annotated according to heat and temperature when stopping annotating, the difference of pressure, adopt thermo-sensitive material to do the basic function material, as the temperature-sensitive expansion agent, bimetal leaf, memorial alloy solves this problem, so that form the band of an annular in the centre of packer, reaches sealing and deblocking purpose, existing this class packer uses the distribution of its thermo-sensitive material of bar shaped heat-sensitive sheet (comprising bimetallic and memory metal) bigger for finishing annular sealing strip, exists active force and disperses, the low shortcomings of thermo-sensitive material utilization rate such as memorial alloy.
The purpose of this utility model is the drawback that exists at above-mentioned packer, a kind of a plurality of thermal packers that directly are arranged on the packer centre have been designed along the uniform a kind of memory alloy spring of cylinder, it has improved the service efficiency of thermo-sensitive material, improve sealing performance, reduced cost.
The purpose of this utility model is to realize like this, it is by upper end cover (1), joint ring (2), main shaft (3), eel-like figure bar shaped bimetal leaf (4), memory alloy spring (5), arc bimetallic (6), double-deck elasticity tube (7), poly-tetrafluoro overcoat (8), fastening pad (9), trip bolt (10), bottom end cover (11) parts constitute, memory alloy spring (5) is installed in the outer wall centre of main shaft (3), and be distributed in a plurality of identical hole at this position, the lower end of memory alloy spring (5) in hole has fastening pad (9) and trip bolt (10) to be fixed on the main shaft, between each uniform memory alloy spring, place eel-like figure bar shaped bimetal leaf (4), the centre attenuates and is convenient to stress and concentrates outside placement one to three layer of arc bimetal leaf (6) of memory alloy spring (5) and eel-like figure bar shaped bimetal leaf (4); No matter memory alloy spring 5 adopts TI-NI-Pb series or Cu-AI-NI series all to require to have double-pass memory effect and operating temperature about 120 ℃; Upper and lower end cap (1) and (11) are threaded with main shaft (3), compress joint ring (2) respectively, so that seal the high steam that comes by in the main shaft, upper and lower end cap (1) and (11) have also compressed poly-tetrafluoro overcoat (8) simultaneously and have been embedded in the interior double-deck elasticity tube (7) of poly-tetrafluoro overcoat (8) works to tighten up whole thermo-sensitive materials.
The utility model is because the bimetallic eel-like figure of employing bar shaped has guaranteed the accuracy of intermediate deformation, and the radial extent of memorial alloy at interval guarantees that distortion takes place in the centre, has substituted common mode with bias spring (balancing spring); Under the acting in conjunction of arc bimetallic and double-deck elasticity tube, play the compressing memorial alloy during contraction and return to original-shape, improved the service efficiency of thermo-sensitive material, it is simple to the utlity model has project organization, easy to operate, good seal performance, the advantage that deblocking is reliable, with low cost has application value widely.
Accompanying drawing 1 is the utility model structural representation.
Below in conjunction with accompanying drawing structure of the present utility model and mounting process are done following specific descriptions.
It is by upper end cover 1, joint ring 2, main shaft 3, eel-like figure bar shaped bimetal leaf 4, memory alloy spring 5, arc bimetallic 6, double-deck elasticity tube 7, poly-tetrafluoro overcoat 8, fastening pad 9, trip bolt 10, bottom end cover 11 parts such as grade constitute, the forging blank that it is φ 145mm that main shaft 3 adopts the 35CrMo alloy steel to make long 390mm diameter, and then car becomes two ends to be respectively 2, the pin thread of 5 inches plain end oil well pipe screw threads and negative thread, negative thread external diameter minimum is φ 90mm, the outside diameter of male thread minimum is φ 67mm, there is the through hole of φ 60mm at the center, the external process groove, and the diameter of heart position processing therein is φ 10mm, dark 9mm hole and the concentric dark 8mm screw-socket of MS negative thread, and notice that these holes will be evenly distributed, promptly make main shaft after finishing above-mentioned work; Arrange vertically that at main shaft upper edge groove eel-like figure bar shaped bimetal leaf 4 is parallel with axis, the position at eel-like figure place will guarantee at the center, place the memory alloy spring of fixing with trip bolt 10 and fastening pad 95 in the φ 10mm hole, three layers of the disposed outside arc bimetal leafs of memory alloy spring and eel-like figure bar shaped bimetallic 4, and require every layer center evenly to stagger, the periphery of arc bimetallic 6 is double-deck elasticity tubes 7, each tube is gone up uniform finedraw, two layered sutures all stagger, the outside of double-deck elasticity tube 7 is poly-tetrafluoro overcoats 8 and compresses with upper end cover 1 and bottom end cover 11, push down high-temperature resistant rubber joint ring 2 simultaneously, be assembled into whole memory alloy spring thermal packer.
Claims (3)
1. the utility model belongs to a kind of sealing tool in the thermal recovery operation under the heavy oil wells, a kind of thermal packer of memory alloy spring particularly, it is by upper end cover (1), joint ring (2), main shaft (3), eel-like figure bar shaped bimetal leaf (4), memory alloy spring (5), arc bimetallic (6), double-deck elasticity tube (7), poly-tetrafluoro overcoat (8), fastening pad (9), trip bolt (10), bottom end cover (11) parts constitute, it is characterized in that: memory alloy spring (5) is installed in the outer wall centre of main shaft (3), and be distributed in a plurality of identical hole at this position, the lower end of memory alloy spring (5) in hole is that fastening pad (9) and trip bolt (10) are fixed on the main shaft (3), place eel-like figure bar shaped bimetal leaf (4) between uniform each memory alloy spring (5), arc bimetal leaf (6) is placed in the outside of memory alloy spring (5) and eel-like figure bar shaped bimetal leaf (4); Upper and lower end cap (1) and (11) are threaded with main shaft (3), compress joint ring (2) respectively, and upper and lower end cap (1) and (11) have also compressed poly-tetrafluoro overcoat (8) simultaneously and have been embedded in the interior double-deck elasticity tube (7) of poly-tetrafluoro overcoat (8).
2. the thermal packer of memory alloy spring according to claim 1 is characterized in that: described memory alloy spring (5) adopts TI-NI-Pb to make.
3. the thermal packer of memory alloy spring according to claim 1 is characterized in that: described memory alloy spring (5) adopts Cu-AI-NI to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246457 CN2315290Y (en) | 1997-12-08 | 1997-12-08 | Thermal production packer of marmen spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246457 CN2315290Y (en) | 1997-12-08 | 1997-12-08 | Thermal production packer of marmen spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2315290Y true CN2315290Y (en) | 1999-04-21 |
Family
ID=33954649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97246457 Expired - Fee Related CN2315290Y (en) | 1997-12-08 | 1997-12-08 | Thermal production packer of marmen spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2315290Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625814A (en) * | 2018-07-12 | 2018-10-09 | 胜利油田金岛实业有限责任公司 | A kind of secondary fill tool of self-unsealing formula |
| CN112943155A (en) * | 2021-01-15 | 2021-06-11 | 中国石油天然气股份有限公司 | Hot washing well packer based on shape memory alloy |
| CN116856881A (en) * | 2023-09-04 | 2023-10-10 | 太原科技大学 | Bridge plug with embedded plugging structure and bridge plug setting method thereof |
-
1997
- 1997-12-08 CN CN 97246457 patent/CN2315290Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625814A (en) * | 2018-07-12 | 2018-10-09 | 胜利油田金岛实业有限责任公司 | A kind of secondary fill tool of self-unsealing formula |
| CN108625814B (en) * | 2018-07-12 | 2024-03-22 | 胜利油田金岛实业有限责任公司 | Self-unsealing type secondary filling tool |
| CN112943155A (en) * | 2021-01-15 | 2021-06-11 | 中国石油天然气股份有限公司 | Hot washing well packer based on shape memory alloy |
| CN116856881A (en) * | 2023-09-04 | 2023-10-10 | 太原科技大学 | Bridge plug with embedded plugging structure and bridge plug setting method thereof |
| CN116856881B (en) * | 2023-09-04 | 2023-11-17 | 太原科技大学 | Bridge plug with embedded plugging structure and bridge plug setting method thereof |
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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 |