CN205063893U - Water -blocking packer - Google Patents
Water -blocking packer Download PDFInfo
- Publication number
- CN205063893U CN205063893U CN201520845794.1U CN201520845794U CN205063893U CN 205063893 U CN205063893 U CN 205063893U CN 201520845794 U CN201520845794 U CN 201520845794U CN 205063893 U CN205063893 U CN 205063893U
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- CN
- China
- Prior art keywords
- tube
- center tube
- shear pin
- packing element
- lower center
- 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 discloses a water -blocking packer, center tube one end is cup jointed continuously with lower center tube one end, the center tube other end links to each other with the top connection, the center tube other end links to each other with the one end of lower clutch down, the other end of lower clutch links to each other with change lock joint head, set up the packing element subassembly on the center tube, the center tube sets up the upper piston cover with lower center tube junction, the center tube sets up the lower piston cover with lower clutch junction cover down, the top connection, the packing element subassembly, the upper piston cover, the lower piston cover closely links to each other in proper order, the lower clutch middle part sets up locking mechanism, deblocking mechanism, locking mechanism passes through the lock tube, it is fixed that deblocking mechanism passes through the shear pin cover, the center tube is the inclined plane transition with the center tube junction down, and inclination is 23-26. The utility model discloses an improve on overall structure for interior latus rectum can reach 50mm, and latus rectum 46mm divides the problem of taking out the pole difficulty under the back of annotating at the oil jacket before effectual the solution.
Description
Technical field
The utility model relates to petroleum equipment technical field, is specifically related to a kind of Packer for blocking water.
Background technology
In petroleum production engineering, Packer for blocking water is used for separate zone water shutoff, water injection through tubing and casing, and Packer for blocking water is designed with oil recovery passage, when setting, piston bush is up, and oil recovery passage is opened; After setting, upper stressor layer acts on dummy piston, upwards pushes away packing element, makes deblocking pin from shearing force; During deblocking, the frictional force by packing element and sleeve pipe cuts off deblocking pin, and piston bush is descending, closes oil recovery passage.The latus rectum of existing Packer for blocking water mostly is 46mm, and after water injection through tubing and casing, lower sucker rod (sucker rod external diameter 38.1-46mm) has difficulties.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the utility model provides a kind of Packer for blocking water, and interior latus rectum can reach 50mm, effectively solve latus rectum 46mm after water injection through tubing and casing under pump the problem of bar difficulty.
Technical scheme: Packer for blocking water described in the utility model, comprises central tube, lower center tube, top connection, lower contact, variable buckle joint, packing element assembly, upper piston cover, lower piston cover, lock tube, shear pin, retaining mechanism, solution sealing mechanism, described central tube one end is socketed with described lower center tube one end and is connected, the described central tube other end is connected with described top connection, the described lower center tube other end is connected with one end of described lower contact, the other end of described lower contact is connected with described variable buckle joint, described central tube is arranged described packing element assembly, described central tube and described lower center tube junction arrange described upper piston cover, described lower center tube and described lower contact junction are overlapped and are arranged described lower piston cover, described top connection, packing element assembly, upper piston cover, lower piston cover is closely connected successively, in the middle part of described lower contact, described retaining mechanism is set, separate sealing mechanism, described retaining mechanism is by described lock tube, described solution sealing mechanism is fixing by described shear pin cover, described lower center tube and described central tube junction are chamfered transition, and angle of inclination is 23 ° ~ 26 °.
Improve technique scheme further, described lower center tube and described central tube junction are chamfered transition, and angle of inclination is 25 °.
Further, described packing element assembly comprises glue tube base, be arranged on middle packing element on glue tube base and two limit packing elements, and be provided with spacer ring between the limit packing element of middle packing element and its both sides, the limit packing element of both sides protects bowl by packing element and is arranged on described central tube.
Further, described glue tube base and described central tube are provided with sealing ring one, described upper piston overlaps that one end is connected with described glue tube base, inside middle portion is connected with described lower center tube, the other end is to described lower center tube lateral buckling, bending place is overlapped with described lower piston and is connected, described upper piston cover middle part is provided with sealing ring two with described lower center tube junction, in the end that described upper piston overlaps, between described lower piston cover with described lower center tube, set piston, set piston and described piston bush, lower center tube junction are respectively equipped with sealing ring three, sealing ring four sealing.
Further, described retaining mechanism comprises lock ring, support ring, and described solution sealing mechanism comprises deblocking shear pin, lock tube, shear pin cover, sets shear pin, shear pin seat; Described lock ring support ring, deblocking shear pin are successively set between described lower piston cover with described lower contact by screw thread, and described deblocking shear pin is connected with described lock tube, described in set shear pin and be arranged on described shear pin and put, described shear pin seat overlaps with described shear pin and is connected.
Further, described Packer for blocking water overall length is 1095mm, and minimum diameter is 50mm.
Beneficial effect: compared with prior art, advantage of the present utility model: the utility model by improving in overall structure, makes interior latus rectum to reach 50mm, before effectively solving latus rectum 46mm after water injection through tubing and casing under pump the problem of bar difficulty; Packing element assembly adopts between three packing element structures, packing element and arranges spacer ring, and two ends are protected bowl by packing element and installed, and improve steadiness; Critical piece junction is all provided with sealing ring, ensures sealing performance; Set and separate seal structure simply, be convenient to processing and tissue, improve functional reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below by accompanying drawing, technical solutions of the utility model are described in detail.
embodiment 1:packer for blocking water as shown in Figure 1, comprises top connection 1, central tube 2, limit packing element, spacer ring 4, middle packing element 5, packing element protects bowl 6, glue tube base 8, upper piston cover 10, lower center tube 2, sets piston, lower piston cover 14, lower contact 15, lock ring 16, support ring 17, deblocking shear pin 18, lock tube 19, shear pin cover 20, sets shear pin 21, shear pin seat 22, variable buckle joint 23, central tube 2 one end is socketed with lower center tube 2 one end and is connected, central tube 2 other end is connected with top connection 1, lower center tube 2 other end is connected with one end of lower contact 15, the other end of lower contact 15 is connected with variable buckle joint 23, lower center tube 2 and central tube 2 junction are chamfered transition, angle of inclination is 25 °, central tube 2 is arranged packing element assembly, central tube 2 and lower center tube 2 junction arrange upper piston and overlap 10, lower center tube 2 and lower contact 15 junction are overlapped and are arranged lower piston and overlap 14, top connection 1, packing element assembly, upper piston cover 10, lower piston cover 14 is closely connected successively, packing element assembly comprises glue tube base 8, be arranged on the middle packing element 5 on glue tube base 8 and two limit packing elements 3, spacer ring 4 is provided with between the limit packing element 3 of middle packing element 5 and its both sides, the limit packing element 3 of both sides protects bowl 6 by packing element and is arranged on central tube 2, arrange retaining mechanism in the middle part of lower contact 15, separate sealing mechanism, retaining mechanism is fixed by shear pin cover 20 by lock tube 19, solution sealing mechanism, retaining mechanism comprises lock ring 16, support ring 17, and separate sealing mechanism and comprise deblocking shear pin 18, lock tube 19, shear pin overlaps 20, sets shear pin 21, shear pin seat 22, lock ring 16 support ring 17, deblocking shear pin 18 are successively set between lower piston cover 14 and lower contact 15 by screw thread, and deblocking shear pin 18 is connected with lock tube 19, and set shear pin 21 and be arranged on shear pin cover 20, shear pin seat 22 and shear pin overlap 20 and be connected.Glue tube base 8 and central tube 2 are provided with sealing ring 1, upper piston overlaps that 10 one end are connected with glue tube base 8, inside middle portion is connected with lower center tube 2, the other end is to lower center tube 2 lateral buckling, bending place and lower piston overlap 14 and are connected, sealing ring 29 is provided with lower center tube 2 junction in the middle part of upper piston cover 10, in the end of upper piston cover 10, between lower piston cover 14 and lower center tube 2, set piston 13, set piston 13 and be respectively equipped with sealing ring 3 12, sealing ring four sealing with lower piston cover, lower center tube 2 junction.
Use procedure: go into the well: Packer for blocking water is in the process of going into the well, and glue tube base, adapter sleeve, lock tube, shear pin cover, shear pin seat etc. are all be connected by screw thread, are provided with anticollision ring in shear pin seat bottom, prevents Packer for blocking water midway setting.
Set: when Packer for blocking water is after design well depth, supercharging in oil pipe, increase hydraulic pressure and act on piston by the eyelet on central tube, promote the up compression packing element of glue tube base simultaneously, the sawtooth button of lock tube and the sawtooth of snap are meshed simultaneously.Lock tube and snap have locked setting action mutually.
Deblocking: upper lifting pipe post 120KN-150KN, removing seal for packer.
The utility model major parameter is: rated operating pressure: 35MPa, overall length: 1095mm, minimum diameter: 50mm, set shear pin shear pressure: 8-10Mpa, set pressure: 14-16Mpa, deblocking power: 120KN-150KN, operating pressure: 50Mpa, operating temperature: 120 DEG C, " two ends are threaded form: 2-7/8TBG to be suitable for sleeve pipe: 41/2.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.
Claims (6)
1. a Packer for blocking water, comprises central tube, lower center tube, top connection, lower contact, variable buckle joint, packing element assembly, upper piston cover, lower piston cover, lock tube, shear pin, retaining mechanism, solution sealing mechanism, it is characterized in that: described central tube one end is socketed with described lower center tube one end and is connected, the described central tube other end is connected with described top connection, the described lower center tube other end is connected with one end of described lower contact, the other end of described lower contact is connected with described variable buckle joint, described central tube is arranged described packing element assembly, described central tube and described lower center tube junction arrange described upper piston cover, described lower center tube and described lower contact junction are overlapped and are arranged described lower piston cover, described top connection, packing element assembly, upper piston cover, lower piston cover is closely connected successively, in the middle part of described lower contact, described retaining mechanism is set, separate sealing mechanism, described retaining mechanism is by described lock tube, described solution sealing mechanism is fixing by described shear pin cover, described lower center tube and described central tube junction are chamfered transition, and angle of inclination is 23 ° ~ 26 °.
2. Packer for blocking water according to claim 1, is characterized in that: described lower center tube and described central tube junction are chamfered transition, and angle of inclination is 25 °.
3. Packer for blocking water according to claim 1, it is characterized in that: described packing element assembly comprises glue tube base, be arranged on middle packing element on glue tube base and two limit packing elements, be provided with spacer ring between the limit packing element of middle packing element and its both sides, the limit packing element of both sides protects bowl by packing element and is arranged on described central tube.
4. Packer for blocking water according to claim 3, it is characterized in that: described glue tube base and described central tube are provided with sealing ring one, described upper piston overlaps one end and is connected with described glue tube base, inside middle portion is connected with described lower center tube, the other end is to described lower center tube lateral buckling, bending place is overlapped with described lower piston and is connected, described upper piston cover middle part is provided with sealing ring two with described lower center tube junction, in the end that described upper piston overlaps, piston is set between described lower piston cover and described lower center tube, set piston and described piston bush, lower center tube junction is respectively equipped with sealing ring three, sealing ring four seals.
5. Packer for blocking water according to claim 1, is characterized in that: described retaining mechanism comprises lock ring, support ring, and described solution sealing mechanism comprises deblocking shear pin, lock tube, shear pin cover, sets shear pin, shear pin seat; Described lock ring support ring, deblocking shear pin are successively set between described lower piston cover with described lower contact by screw thread, and described deblocking shear pin is connected with described lock tube, described in set shear pin and be arranged on described shear pin and put, described shear pin seat overlaps with described shear pin and is connected.
6. Packer for blocking water according to claim 1, is characterized in that: described Packer for blocking water overall length is 1095mm, and minimum diameter is 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845794.1U CN205063893U (en) | 2015-10-28 | 2015-10-28 | Water -blocking packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845794.1U CN205063893U (en) | 2015-10-28 | 2015-10-28 | Water -blocking packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205063893U true CN205063893U (en) | 2016-03-02 |
Family
ID=55390461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520845794.1U Expired - Fee Related CN205063893U (en) | 2015-10-28 | 2015-10-28 | Water -blocking packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205063893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057743A (en) * | 2018-07-10 | 2018-12-21 | 盐城市森鑫石油机械有限公司 | A kind of structure of Packer for blocking water and combinations thereof method for dismounting |
-
2015
- 2015-10-28 CN CN201520845794.1U patent/CN205063893U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057743A (en) * | 2018-07-10 | 2018-12-21 | 盐城市森鑫石油机械有限公司 | A kind of structure of Packer for blocking water and combinations thereof method for dismounting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20211028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |