CN2536779Y - Packer - Google Patents
Packer Download PDFInfo
- Publication number
- CN2536779Y CN2536779Y CN 02210531 CN02210531U CN2536779Y CN 2536779 Y CN2536779 Y CN 2536779Y CN 02210531 CN02210531 CN 02210531 CN 02210531 U CN02210531 U CN 02210531U CN 2536779 Y CN2536779 Y CN 2536779Y
- Authority
- CN
- China
- Prior art keywords
- packer
- top connection
- control valve
- lower contact
- utility
- 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
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to a packer, comprising a central tube 1, an upper joint 2, an upper rubber packer seat 3, a rubber packer 4, a lower rubber packer seat 5, a lower joint 6, a circular piston 7 and a control valve 8. The utility model has the advantages of simple structure, low cost, long service life, reliable setting and easy releasing.
Description
Technical field: the utility model relates to down-hole, oil field packer.
Background technology: at present the down-hole, oil field is used for the packer of seperated layer water injection, separate zone water shutoff, zonal testing, oil production by layer etc., and existence or complex structure or cost height or application life are short or set not firm or sit the shortcoming of unsealing operation difficulty.
Summary of the invention: the purpose of this utility model provides that a kind of structure set is simple, and cost is low, and long service life sets firm and sits the easy advantage of unsealing operation packer.Technical solution of the present utility model is, it is made of central tube, top connection, last glue tube base, packing element, lower rubber cylinder seat, lower contact, annular piston, control valve, top connection from top to bottom, last glue tube base, packing element, lower rubber cylinder seat, lower contact interconnect successively and are placed in outside the central tube, annular piston is between top connection and last glue tube base, and control valve is positioned at the inclined to one side hole of lower contact 6.Technique effect of the present utility model is, its structure set is simple, and cost is low, and long service life sets firm and sits the easy advantage of unsealing operation.
Description of drawings: accompanying drawing is the utility model example structure schematic diagram.
The specific embodiment: as shown in the figure, it is made of central tube 1, top connection 2, last glue tube base 3, packing element 4, lower rubber cylinder seat 5, lower contact 6, annular piston 7 and control valve 8, top connection from top to bottom 2, last glue tube base 3, packing element 4, lower rubber cylinder seat 5, lower contact 6 interconnect successively and are placed in outside the central tube 1, annular piston 7 is between top connection 2 and last glue tube base 3, and control valve 8 is positioned at the inclined to one side hole of lower contact 6.
Claims (1)
- A kind of packer, it includes central tube (1), top connection (2), goes up glue tube base (3), packing element (4), lower rubber cylinder seat (5), lower contact (6), annular piston (7) and control valve (8), it is characterized in that top connection from top to bottom (2), last glue tube base (3), packing element (4), lower rubber cylinder seat (5), lower contact (6) interconnect successively and be placed in outside the central tube (1), annular piston (7) is positioned between top connection (2) and the last glue tube base (3), and control valve (8) is positioned at the inclined to one side hole of lower contact 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210531 CN2536779Y (en) | 2002-03-07 | 2002-03-07 | Packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210531 CN2536779Y (en) | 2002-03-07 | 2002-03-07 | Packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2536779Y true CN2536779Y (en) | 2003-02-19 |
Family
ID=33690648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02210531 Expired - Fee Related CN2536779Y (en) | 2002-03-07 | 2002-03-07 | Packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2536779Y (en) |
-
2002
- 2002-03-07 CN CN 02210531 patent/CN2536779Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2497090A1 (en) | Coil tubing hanger and method of using same | |
| CN2536779Y (en) | Packer | |
| CN101165309B (en) | Compression type packer | |
| CN202946131U (en) | Pawl spring clamping buckle type self-locking pressing crack sliding sleeve | |
| CN203097813U (en) | Flow restricting self-filling float collar for manifold cycles | |
| CN209799937U (en) | Separate-layer water injection device of casing damage repair well | |
| CN201695988U (en) | Pressure difference self sealing type steam filling packer | |
| CN201050329Y (en) | Well mouth pressure testing packer | |
| CN2511787Y (en) | Packer | |
| CN2740771Y (en) | Self-pulping arrow back pressure valve | |
| CN203626710U (en) | Inwardly-pushing type packer | |
| CN201250642Y (en) | Oil well pressure measurement and water plugging packer | |
| CN207177813U (en) | A kind of well mouth pressure testing packer | |
| CN205558857U (en) | Intelligent gas production well head device | |
| CN201695986U (en) | Packer capable of cleaning well | |
| CN204646166U (en) | A kind of well mouth oil pipe plugging device | |
| CN2534366Y (en) | Pressure conducting desander | |
| CN2688867Y (en) | Piston square drilling rod antisputtering jointers | |
| CN2519015Y (en) | Duplex hydraulic compression type packer | |
| CN2306312Y (en) | Well washing valve | |
| CN2463536Y (en) | Hydraulic layer-changing device | |
| CN2806750Y (en) | Flexile anchorage device for oil well | |
| CN2559779Y (en) | Water flood slip supported packer | |
| CN2648041Y (en) | Flushing well device | |
| CN2720108Y (en) | Slide-blocking type non-return valve |
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: 20030219 Termination date: 20100307 |