CN2660107Y - Rotary packer - Google Patents
Rotary packer Download PDFInfo
- Publication number
- CN2660107Y CN2660107Y CN 200320106207 CN200320106207U CN2660107Y CN 2660107 Y CN2660107 Y CN 2660107Y CN 200320106207 CN200320106207 CN 200320106207 CN 200320106207 U CN200320106207 U CN 200320106207U CN 2660107 Y CN2660107 Y CN 2660107Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- packer
- sliding bolt
- track
- lower contact
- 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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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a rotary packer used in an oil extraction well in oil field. The utility model has the technical proposal that the rotary packer is composed of an upper contact, a central tube, a sealing colloid, a seat sealing device, a sliding bolt, a lower contact, etc. The connecting part of the central tube and the lower contact is provided with a track and is clamped and positioned by the sliding bolt. The rotary packer is characterized in that a bearing 4 is sheathed between the upper contact 1 and an adjusting ring 2; the track of the combining portion of the central tube 6 and the sliding bolt 7 is milled to an open annular recess to make the central tube 6 rotate after the seat is sealed; the combining portion of the upper contact 1 and the adjusting ring 2 is provided with a sealing ring 3. The packer using the technical proposal overcomes the problem that the central tube can not rotate relatively when the packer works in the well, and the rotary packer enlarges the using range of the packer, and extends the service life of the oil pumping column.
Description
One, technical field: the utility model relates to the packer that uses under the oil well.
Two, background technology: the downhole packer that uses has many kinds at present, mainly form by parts such as top connection, central tube, sealed colloid, supporting slip, seat envelope device and lower contacts, under the packer set state, because the track pin of central tube is in straight trough, can not relatively rotate between central tube and the sealer and make, or because of top connection and following pressure ring contacts with the sealed colloid extruding, the very big frictional force of generation and can not rotating has limited the scope of application of packer.
Three, summary of the invention: the purpose of this utility model is exactly the problems referred to above that exist at existing packer, and two kinds of rotatable packers are provided.
The technical solution of the utility model is: be made up of top connection, central tube, sealed colloid, seat envelope device, sliding bolt, lower contact etc., its central tube and lower contact connecting portion are provided with track, by sliding bolt chucking location, it is characterized in that: between top connection 1 and adjustable ring 2, be set with bearing 4; The central tube 6 and the track of sliding bolt 7 joint portions are milled into the cannelure of open shape, the seat central tube 6 of being honored as a queen can be rotated.Sealing ring 3 is equipped with in joint portion at top connection 1 and adjustable ring 2.
Central tube can not counterrotating problem in underground work to have overcome packer according to the packer of technique scheme, has enlarged the scope of application of packer, has prolonged the application life of pumping pipe string.
Four, description of drawings:
Fig. 1 is a structure chart of the present utility model.The 1st, top connection, the 2nd, adjustable ring, the 3rd, sealing ring, the 4th, bearing, the 5th, sealed colloid, the 6th, central tube, the 7th, sliding bolt, the 8th, lower contact.
Fig. 2 is the expanded view of the central tube cannelure among Fig. 1.
Five, specific embodiment:
In conjunction with Fig. 1, to form by top connection 1, central tube 6, sealed colloid 5, seat envelope device, sliding bolt 7, lower contact 8 etc., its central tube 6 is provided with track with lower contact 8 connecting portions, by sliding bolt 7 chucking location.Between top connection 1 and adjustable ring 2, be set with bearing 4, sealing ring 3 be housed in the joint portion of top connection 1 and adjustable ring 2.The central tube 6 and the track of sliding bolt 7 joint portions are milled into the cannelure of open shape, the seat central tube 6 of being honored as a queen can be rotated.
Claims (2)
1, a kind of rotation packer, comprise top connection, central tube, sealed colloid, seat envelope device, sliding bolt, lower contact composition, its central tube and lower contact connecting portion are provided with track, by sliding bolt chucking location, it is characterized in that: be set with bearing (4) between top connection (1) and adjustable ring (2); The central tube (6) and the track of sliding bolt (7) joint portion are milled into the cannelure of open shape, the seat central tube (6) of being honored as a queen can be rotated.
2, rotation packer according to claim 3 is characterized in that: sealing ring (3) is equipped with in the joint portion at top connection (1) and adjustable ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106207 CN2660107Y (en) | 2003-10-13 | 2003-10-13 | Rotary packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106207 CN2660107Y (en) | 2003-10-13 | 2003-10-13 | Rotary packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660107Y true CN2660107Y (en) | 2004-12-01 |
Family
ID=34341546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320106207 Expired - Fee Related CN2660107Y (en) | 2003-10-13 | 2003-10-13 | Rotary packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660107Y (en) |
-
2003
- 2003-10-13 CN CN 200320106207 patent/CN2660107Y/en not_active Expired - Fee Related
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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 |