CN2797620Y - Compensating type thermosensitive metal packer - Google Patents
Compensating type thermosensitive metal packer Download PDFInfo
- Publication number
- CN2797620Y CN2797620Y CN 200520019928 CN200520019928U CN2797620Y CN 2797620 Y CN2797620 Y CN 2797620Y CN 200520019928 CN200520019928 CN 200520019928 CN 200520019928 U CN200520019928 U CN 200520019928U CN 2797620 Y CN2797620 Y CN 2797620Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- sleeve
- packing element
- rubber barrel
- barrel
- 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 type thermosensitive metal packer, which is composed of a telescopic pipe, a clamping sleeve, a sealing barrel, an inner pipe, an upper baffle sleeve of a rubber barrel, the rubber barrel, an inner lining sleeve, a thermosensitive sheet, a lower baffle sleeve of the rubber barrel, a fixed ring and a lower joint, wherein the inner pipe, the clamping sleeve and the sealing barrel are sheathed on the telescopic pipe; the clamping sleeve is connected by threads with the upper part of the inner pipe and the rubber barrel is arranged at the outer part of the inner pipe; the upper and the lower parts of the rubber barrel are arranged at the upper and the lower baffle sleeves of the rubber barrel; the inner lining sleeve and the thermosensitive sheet are arranged between the rubber barrel and the inner pipe; the fixed ring is connected with the lower part of the inner pipe; the lower part of the telescopic pipe is connected with the lower joint. When steam is injected, injected steam gets into a gap between the lower inner part of the inner pipe and the telescopic pipe so that after the thermosensitive sheet is heated and stretched, the rubber barrel is expanded to seal a sleeve pipe and the steam can not flow into the sleeve pipe above the packer. When a pipe column is heated for extending or cooled for shortening, the rubber barrel is expanded on the sleeve pipe and is not stretched with the pipe column. A relative movement can not occur between the rubber barrel and the sleeve pipe can not be damaged with the advantages of good sealing effect and long service life.
Description
One, technical field
The utility model belongs to the compensation thermometal packer that oil field machinery oil is used.
Two, 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 comes with some shortcomings, and when tubing string was shortened by thermal stretching or cooling, packer was all together flexible with tubing string, causes packing element and sleeve friction and damages.
Three, summary of the invention
The purpose of this utility model is exactly at the deficiencies in the prior art, designs a kind of compensation thermometal packer, makes it when tubing string is shortened by thermal stretching or cooling, and packer is together not flexible with tubing string, and packing element can not damage.
The purpose of this utility model is achieved in that it is made up of interstage sleeve, retainer ring, lower contact under interstage sleeve, packing element, neck bush, heat-sensitive sheet, the packing element on telescoping tube, clamping sleeve, sealing drum, interior pipe, the packing element.Interior pipe, clamping sleeve, sealing sleeve are contained on the telescoping tube, sealing drum also is installed in the interior pipe, clamping sleeve and interior pipe top thread connection, clamping sleeve compresses sealing drum, the outside packing element of installing of interior pipe, and interstage sleeve on the packing element is installed on packing element top, interstage sleeve under the packing element is installed in the packing element bottom, be neck bush and heat-sensitive sheet between packing element and the interior pipe, pipe bottom in retainer ring is connected in, the telescoping tube bottom connects with lower contact.
Interior pipe middle part has linked hole, and gapped between inside and the telescoping tube under the interior pipe, there is by-pass prot the lower contact outside.During steam injection, steam changes in the sleeve pipe downwards in telescoping tube, when steam makes progress in sleeve pipe, in the gap under managing in steam enters from the outside by-pass prot in the lower contact between inside and the telescoping tube, make heat-sensitive sheet be subjected to expand packing element behind the hot stretched, steam can be from the outside upwards channelling of packing element, under the effect of sealing drum, steam can be from channelling between sealing drum and the telescoping tube yet, thereby Sealed casing pipe makes the steam can not channelling in the sleeve pipe on the packer.
The beneficial effects of the utility model are: when tubing string was shortened by thermal stretching or cooling, packing element was expanded on sleeve pipe, and is together not flexible with tubing string, and relative motion does not take place between packing element and the sleeve pipe, and packing element can not damage, good sealing effect, long service life.
Four, description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
Among the figure: the 1st, telescoping tube, the 2nd, clamping sleeve, the 3rd, sealing drum, the 4th, interior pipe, the 5th, interstage sleeve on the packing element, the 6th, packing element, the 7th, neck bush, the 8th, heat-sensitive sheet, the 9th, interstage sleeve under the packing element, the 10th, retainer ring, the 11st, lower contact.Be that the utility model is made up of interstage sleeve 9, retainer ring 10, lower contact 11 under interstage sleeve 5, packing element 6, neck bush 7, heat-sensitive sheet 8, the packing element on telescoping tube 1, clamping sleeve 2, sealing drum 3, interior pipe 4, the packing element.Interior pipe 4, clamping sleeve 2, sealing sleeve 3 are contained on the telescoping tube 1, pipe was 4 li in sealing drum 3 also was installed in, clamping sleeve 2 and interior pipe 4 top thread connection, clamping sleeve 2 compresses sealing drum 3, the interior pipe 4 outside packing elements 6 of installing, and interstage sleeve 5 on the packing element is installed on packing element 6 tops, interstage sleeve 9 under the packing element is installed in packing element 6 bottoms, between packing element 6 and the interior pipe 4 neck bush 7 and heat-sensitive sheet 8, pipe 4 bottoms in retainer ring 10 is connected in, telescoping tube 1 bottom connects with lower contact 11.
Interior pipe 4 middle parts have linked hole, and gapped between 4 times inside of interior pipe and the telescoping tube 1, there is by-pass prot lower contact 11 outsides.During steam injection, steam changes in the sleeve pipe downwards in telescoping tube 1, when steam makes progress in sleeve pipe, in the gap in steam enters from the outside by-pass prot in the lower contact 11 between 4 times inside of pipe and the telescoping tube 1, make heat-sensitive sheet 8 be subjected to expand packing element 6 behind the hot stretched, packing element 6 contacts with sleeve pipe, steam can be from packing element 6 outside upwards channelling, under the effect of sealing drum 2, steam can be from channelling between sealing drum 2 and the telescoping tube 1 yet, thereby Sealed casing pipe makes the steam can not channelling in the sleeve pipe on the packer.
Claims (1)
1, a kind of compensation thermometal packer, by telescoping tube (1), clamping sleeve (2), sealing drum (3), interior pipe (4), interstage sleeve on the packing element (5), packing element (6), neck bush (7), heat-sensitive sheet (8), interstage sleeve under the packing element (9), retainer ring (10), lower contact (11) is formed, it is characterized in that: interior pipe (4), clamping sleeve (2), sealing sleeve (3) is contained on the telescoping tube (1), sealing drum (3) also is installed in interior pipe (4) lining, clamping sleeve (2) and interior pipe (4) top thread connection, clamping sleeve (2) compresses sealing drum (3), the outside packing element (6) of installing of interior pipe (4), interstage sleeve (5) on the packing element is installed on packing element (6) top, interstage sleeve (9) under the packing element is installed in packing element (6) bottom, between packing element (6) and the interior pipe (4) neck bush (7) and heat-sensitive sheet (8), retainer ring (10) is connected in interior pipe (4) bottom, and telescoping tube (1) bottom connects with lower contact (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019928 CN2797620Y (en) | 2005-05-01 | 2005-05-01 | Compensating type thermosensitive metal packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019928 CN2797620Y (en) | 2005-05-01 | 2005-05-01 | Compensating type thermosensitive metal packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797620Y true CN2797620Y (en) | 2006-07-19 |
Family
ID=36868860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520019928 Expired - Fee Related CN2797620Y (en) | 2005-05-01 | 2005-05-01 | Compensating type thermosensitive metal packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797620Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555574A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Sand control, steam injection integrated apparatus and method |
| CN106555573A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Underground steam flow distribution device |
-
2005
- 2005-05-01 CN CN 200520019928 patent/CN2797620Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555574A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Sand control, steam injection integrated apparatus and method |
| CN106555573A (en) * | 2015-09-25 | 2017-04-05 | 中国石油化工股份有限公司 | Underground steam flow distribution device |
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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: 20060719 |