CN202187741U - Sliding sleeve sealing device - Google Patents
Sliding sleeve sealing device Download PDFInfo
- Publication number
- CN202187741U CN202187741U CN2011202845663U CN201120284566U CN202187741U CN 202187741 U CN202187741 U CN 202187741U CN 2011202845663 U CN2011202845663 U CN 2011202845663U CN 201120284566 U CN201120284566 U CN 201120284566U CN 202187741 U CN202187741 U CN 202187741U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- sealing ring
- external diameter
- communicating
- communicating hole
- 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
- Mechanical Sealing (AREA)
Abstract
The utility model discloses a sliding sleeve sealing device which comprises a communicating body, an upper sealing ring, a sliding sleeve and a lower sealing ring. A communicating hole is formed in the communicating body; the outer wall of the sliding sleeve covers the communicating hole; the upper sealing ring and the lower sealing ring are installed on the sliding sleeve; the external diameter of the position where the upper sealing ring is installed on the sliding sleeve is smaller than that of the position where the lower sealing ring is installed on the sliding sleeve; a diameter difference is formed between the external diameter of the position where the upper sealing ring is installed on the sliding sleeve and the internal diameter of the position below the communicating hole in the communicating body; the sealing ring is beyond a mounting groove, extends into the communicating hole along with liquid flow and can pass through the communicating hole after being shorn, so that the sliding sleeve can not be stuck, the sliding sleeve can move into place, the design purpose is achieved, and the economic loss is reduced.
Description
Technical field
The utility model is the device on the downhole tool of oil field, is a kind of sliding sleeve sealing device.
Background technology
Oilfield oil well downhole tool kind is more, has on one type the instrument linked hole is arranged, earlier by sliding sleeve sealing linked hole; Install sealing ring and lower seal on the sliding sleeve; Last sealing ring, lower seal are between the linked hole, in the time of need not sealing, push sliding sleeve open and make its pressure release.The diameter that existing sliding sleeve is installed sealing ring and lower seal place equates when being with pressure to push open, have one sealing ring must pass through linked hole; Because the sealing astragal pressure moment and is passed through UNICOM; The sealing ring that has can run off in the mounting groove and charge in the linked hole with flow and cut up, and sliding sleeve is stuck, and sliding sleeve can not put in place; Do not reach purpose of design, also can cause economic loss sometimes.
Summary of the invention
The purpose of the utility model is a kind of sliding sleeve sealing device of design, avoids sliding sleeve to be stuck, and guarantees that sliding sleeve moves into place.
The purpose of the utility model is achieved in that and comprises UNICOM's body, last sealing ring, sliding sleeve, lower seal; On UNICOM's body linked hole is arranged; The sliding sleeve outer wall covers linked hole; Install sealing ring and lower seal on the sliding sleeve, the external diameter of installing the sealing ring position on the sliding sleeve is less than the external diameter that the lower seal position is installed.
The beneficial effect of the utility model is: the external diameter of installing the sealing ring position on the sliding sleeve is less than the external diameter that the lower seal position is installed; Install on the sliding sleeve that the internal diameter under the linked hole has diameter difference on external diameter and the UNICOM's body at sealing ring position, sealing ring runs off in the mounting groove and charges into flow and can pass through after being cut up in the linked hole, therefore; Sliding sleeve can not be stuck; Sliding sleeve is removable to put in place, can reach purpose of design, reduces economic loss.
Description of drawings:
Fig. 1 is the assembling half sectional view of the utility model embodiment.
The specific embodiment:
Below in conjunction with Fig. 1 the embodiment of the utility model is detailed.Comprise UNICOM's body 1, go up sealing ring 2, sliding sleeve 3, lower seal 4; Linked hole 5 is arranged on UNICOM's body 1; Sliding sleeve 3 outer walls cover linked hole 5, install sealing ring 2 and lower seal 4 on the sliding sleeve 3, and the external diameter of installing sealing ring 2 positions on the sliding sleeve 3 is less than the external diameter that lower seal 4 positions are installed.
Claims (1)
1. sliding sleeve sealing device; Comprise UNICOM's body (1), go up sealing ring (2), sliding sleeve (3), lower seal (4); It is characterized in that: linked hole (5) is arranged on UNICOM's body (1); Sliding sleeve (3) outer wall covers linked hole (5), installs sealing ring (2) and lower seal (4) on the sliding sleeve (3), and the external diameter of installing sealing ring (2) position on the sliding sleeve (3) is less than the external diameter that lower seal (4) position is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202845663U CN202187741U (en) | 2011-08-03 | 2011-08-03 | Sliding sleeve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202845663U CN202187741U (en) | 2011-08-03 | 2011-08-03 | Sliding sleeve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187741U true CN202187741U (en) | 2012-04-11 |
Family
ID=45919200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202845663U Expired - Fee Related CN202187741U (en) | 2011-08-03 | 2011-08-03 | Sliding sleeve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202187741U (en) |
-
2011
- 2011-08-03 CN CN2011202845663U patent/CN202187741U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2256288A3 (en) | Improved subsea cementing plug system with plug launching tool | |
| MY168198A (en) | Well screen with extending filter | |
| AR073045A1 (en) | WATER FLOOD REGULATOR INSIDE A WELL | |
| EP2110509A3 (en) | System and method for thru tubing deepening of gas lift | |
| EP2650468A3 (en) | A Downhole Plug | |
| WO2015074932A3 (en) | Pressure containment device | |
| CN203847070U (en) | Hydraulic-control switch with sliding sleeve | |
| EP2647789A3 (en) | Methods and apparatus for cementing wells | |
| CN201889764U (en) | Guide sleeve and push sleeve for mounting sealing rings | |
| CN202187741U (en) | Sliding sleeve sealing device | |
| CN101915070B (en) | Expanding open hole packer | |
| CN102094591A (en) | Fracturing packer for barefoot well | |
| CN201090161Y (en) | New type connection and sealing structure for expansion tube | |
| CN205805466U (en) | A kind of rupture disk built-in mechanism | |
| CN201170083Y (en) | Reducing sliding bush | |
| CN203868486U (en) | Foot valve with simple structure | |
| CN202832387U (en) | Turning block oil drain device | |
| CN201953351U (en) | Sliding sleeve oil drainage device | |
| CN203757240U (en) | Pipeline fast connector | |
| CN101260792A (en) | Reducing sliding bush | |
| CN202258822U (en) | Simple sealing mechanism of oil injection head of capacitor | |
| CN203430480U (en) | Blocking ball and seat assembly | |
| CN204703846U (en) | The down-hole vent valve of deep-well can be installed on | |
| CN202596664U (en) | Wellhead backflow preventer | |
| CN205778710U (en) | A kind of packer |
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: 20120411 Termination date: 20120803 |