CN201363120Y - Compensating temperature-sensitive packer - Google Patents
Compensating temperature-sensitive packer Download PDFInfo
- Publication number
- CN201363120Y CN201363120Y CNU2009201474086U CN200920147408U CN201363120Y CN 201363120 Y CN201363120 Y CN 201363120Y CN U2009201474086 U CNU2009201474086 U CN U2009201474086U CN 200920147408 U CN200920147408 U CN 200920147408U CN 201363120 Y CN201363120 Y CN 201363120Y
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- CN
- China
- Prior art keywords
- sensitive sheet
- temperature
- sensitive
- heat
- shaft
- 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
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Abstract
The utility model relates to a compensating temperature-sensitive packer; an upper joint is connected with the upper part of an extension tube; the lower part of the extension tube is connected with a lower joint; a sealing shaft is sleeved on the extension tube; a connecting hole is arranged in the sealing shaft; a sealing piece is installed in the sealing shaft; the sealing shaft surrounds the extension tube; a rubber barrel is sleeved outside the sealing shaft; a temperature-sensitive sheet is installed between the rubber barrel and the sealing shaft; the lower part of the temperature-sensitive sheet is wrapped by a temperature-sensitive sheet supporting ring; and the temperature-sensitive sheet is connected with the temperature-sensitive sheet supporting ring via a pin shaft. Insulating oil tube female threads are installed on the upper part of the upper joint, and the lower part of the lower joint is provided with oil tube male threads. After steam is injected, the pipe column is lengthened by heating; or after stopping injecting the steam, the temperature is reduced so that the pipe column is shortened; the rubber barrel is expanded on a bushing and not extended with the pipe column; no relative movement occurs between the rubber barrel and the bushing; and the rubber barrel is not easy to damage. The compensating temperature-sensitive packer has good sealing effect, long service life and good steam injection effect; the temperature-sensitive sheet is protected by the supporting ring so as not to be scattered, and can be completely lifted out from the well.
Description
Technical field:
The utility model belongs to the instrument that the oil field steamed well is used, particularly a kind of compensation temperature-sensitive packer.
Background technology:
When the steam injection of oil thermal recovery well, require the steam pressure height of injection, heat waste was few when temperature height, steam arrived the stratum from well head.In order to reach the few purpose of heat waste, generally be the thermal packer that high temperature high voltage resistant is installed on the steam injection tubing string that injects on the stratum, steam is not flow to cause heat waste in the sleeve pipe.Existing thermal packer kind is more, but all come with some shortcomings, when tubing string is shortened by thermal stretching or cooling, packer is all together flexible with tubing string, cause packing element and sleeve friction and damage, existing thermal packer also have a weak point be packing element when reclaiming heat-sensitive sheet lose support and be scattered easily.
Summary of the invention:
The purpose of this utility model is exactly at the deficiencies in the prior art, design a kind of compensation temperature-sensitive packer, make it when tubing string is shortened by thermal stretching or cooling, packer is together not flexible with tubing string, packing element is not easy to damage, and heat-sensitive sheet can not lose and support and be scattered when packing element reclaimed.
The purpose of this utility model is achieved in that by top connection, telescoping tube, seal, seal shaft, the heat-sensitive sheet support ring, bearing pin, heat-sensitive sheet, packing element, lower contact is formed, top connection connects with telescoping tube top, the telescoping tube bottom connects with lower contact, sealing axle sleeve is contained on the telescoping tube, linked hole is arranged on the seal shaft, seal is installed in the seal shaft, seal shaft surrounds telescoping tube, packing element is sleeved on outside the seal shaft, heat-sensitive sheet is installed between packing element and the seal shaft, the heat-sensitive sheet bottom is by heat-sensitive sheet support ring ring bag, and heat-sensitive sheet is connected on the heat-sensitive sheet support ring by bearing pin.
The insulated tubing box thread is arranged at top connection top, and the oil pipe male thread is arranged at the lower contact bottom.
The beneficial effects of the utility model are: when temperature decline tubing string shortened after tubing string was subjected to thermal stretching or stops to annotate vapour behind the notes vapour; the packing element expansion is on sleeve pipe; together not flexible with tubing string; relative motion does not take place between packing element and the sleeve pipe; packing element is not easy to damage good sealing effect, long service life; notes vapour is effective, and heat-sensitive sheet has the support ring protection can not be scattered.
Description of drawings:
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model embodiment is described.By top connection 1, telescoping tube 2, seal 3, seal shaft 4, heat-sensitive sheet support ring 5, bearing pin 6, heat-sensitive sheet 7, packing element 8, lower contact 9 is formed, top connection 1 connects with telescoping tube 2 tops, telescoping tube 2 bottoms connect with lower contact 9, seal shaft 4 is sleeved on the telescoping tube 2, on the seal shaft 4 linked hole is arranged, seal 3 is installed in the seal shaft 4, seal shaft 4 surrounds telescoping tube 2, packing element 8 is sleeved on outside the seal shaft 4, heat-sensitive sheet 7 is installed between packing element 8 and the seal shaft 4, heat-sensitive sheet 7 bottoms are by heat-sensitive sheet support ring 5 ring bags, and heat-sensitive sheet 7 is connected on the heat-sensitive sheet support ring 5 by bearing pin 6.Top connection 1 top has the insulated tubing box thread to be connected with insulated tubing, and the oil pipe male thread of lower contact 9 bottoms is connected with the notes stripper tool.
When annotating vapour, steam imports into from the linked hole on the seal shaft 4, heat-sensitive sheet 7 temperature distortions make packing element 8 expansions in sleeve pipe upper sleeve gasket pipe ring shape space, packing element 8 expansions back on sleeve pipe produces frictional force with sleeve pipe, when steam injection string is subjected to thermal stretching, seal 3, seal shaft 4, heat-sensitive sheet support ring 5, bearing pin 6, heat-sensitive sheet 7, packing element 8 is motionless under the frictional force effect of packing element 8 and sleeve pipe, top connection 1, telescoping tube 2, lower contact 9 is descending, because packing element 8 does not move, so can not damage, when stopping to annotate the withdrawal of 7 times distortion of vapour well temperature decline heat-sensitive sheet packing element, heat-sensitive sheet 7 is at heat-sensitive sheet support ring 5, can not be scattered under the fixation of bearing pin 6, the utility model can intactly be suggested pit shaft.
Claims (2)
1, a kind of compensation temperature-sensitive packer, by top connection (1), telescoping tube (2), seal (3), seal shaft (4), heat-sensitive sheet support ring (5), bearing pin (6), heat-sensitive sheet (7), packing element (8), lower contact (9) is formed, it is characterized in that: top connection (1) connects with telescoping tube (2) top, telescoping tube (2) bottom connects with lower contact (9), seal shaft (4) is sleeved on the telescoping tube (2), seal shaft has linked hole on (4), seal (3) is installed in the seal shaft (4), seal shaft (4) surrounds telescoping tube (2), packing element (8) is sleeved on outside the seal shaft (4), heat-sensitive sheet (7) is installed between packing element (8) and the seal shaft (4), heat-sensitive sheet (7) bottom is by heat-sensitive sheet support ring (5) ring bag, and heat-sensitive sheet (7) is connected on the heat-sensitive sheet support ring (5) by bearing pin (6).
2, compensation temperature-sensitive packer according to claim 1 is characterized in that: the insulated tubing box thread is arranged at top connection (1) top, and the oil pipe male thread is arranged at lower contact (9) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201474086U CN201363120Y (en) | 2009-03-26 | 2009-03-26 | Compensating temperature-sensitive packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201474086U CN201363120Y (en) | 2009-03-26 | 2009-03-26 | Compensating temperature-sensitive packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363120Y true CN201363120Y (en) | 2009-12-16 |
Family
ID=41473783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201474086U Expired - Fee Related CN201363120Y (en) | 2009-03-26 | 2009-03-26 | Compensating temperature-sensitive packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363120Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121367A (en) * | 2011-01-30 | 2011-07-13 | 蒯泽明 | Underground steam injection sealing, heat insulation and compensation integrated device |
| CN102561987A (en) * | 2012-02-13 | 2012-07-11 | 吉林大学 | Steam injection thermosensitive expanding and folding type multiple-segment packer |
-
2009
- 2009-03-26 CN CNU2009201474086U patent/CN201363120Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121367A (en) * | 2011-01-30 | 2011-07-13 | 蒯泽明 | Underground steam injection sealing, heat insulation and compensation integrated device |
| CN102561987A (en) * | 2012-02-13 | 2012-07-11 | 吉林大学 | Steam injection thermosensitive expanding and folding type multiple-segment packer |
| CN102561987B (en) * | 2012-02-13 | 2014-05-07 | 吉林大学 | Steam injection thermosensitive expanding and folding type multiple-segment packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20100326 |