CN2635907Y - Hydraulic controllable sleeve - Google Patents
Hydraulic controllable sleeve Download PDFInfo
- Publication number
- CN2635907Y CN2635907Y CN 03271415 CN03271415U CN2635907Y CN 2635907 Y CN2635907 Y CN 2635907Y CN 03271415 CN03271415 CN 03271415 CN 03271415 U CN03271415 U CN 03271415U CN 2635907 Y CN2635907 Y CN 2635907Y
- Authority
- CN
- China
- Prior art keywords
- spring
- sleeve
- sliding sleeve
- ring
- central tube
- 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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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a sliding sleeve which is a special mechanical device for petroleum production and drilling in petroleum industry and mainly used for well cleanout and well killing. The exterior of the slide sleeve is connected by an upper connector (1) and a connecting sleeve (8) with a lower connector (16) and a spring sleeve (12), a cable protecting block (17) is respectively connected to the upper connector (1) and the lower connector (16); the interior of the sliding sleeve is connected by a lock hook (2) with a center tube (13) and sealed and fastened by a locking bolt (4) and an O-ring, wherein a gliding block (7), a spacer ring (6) and a spring (3) are installed at the lock hook (2), a baffle ring (11) and a spring (14) are installed between the center tube (13) and the spring sleeve (12), and the locking bolt (4) and the O-ring are used for fastening and sealing.
Description
One, technical field:
The utility model belongs to the special mechanism of petroleum industry system oil recovery drilling well, is mainly used in well-flushing, kill-job technology.
Two, technical background:
In the past,, often opened sliding sleeve in the electric pump production management in oil field, and temporarily also do not have isolated plant to open sliding sleeve easily by the wire rope operation of bothersome effort at petroleum industry system.
Three, summary of the invention:
The purpose of this utility model provides the controlled sliding sleeve of a kind of hydraulic pressure, solves and originally will open sliding sleeve by complicated manual operation.It mainly is made of central tube, spring housing, adapter sleeve, last lower contact and lock pawl, slide block etc., and its outside mainly is connected with spring housing and lower contact by top connection, adapter sleeve, and the cable protection piece is connected to top connection and lower contact place.The inside of this sliding sleeve is connected with central tube by the lock pawl, and is tightened up by backing-up screw, and lock pawl place is equipped with slide block, spacer ring and spring; Baffle ring and spring are installed in the middle of central tube and the spring housing.When being the electric pump flow string that is used for following cable-passing packer, well-flushing, kill-job, its beneficial effect can avoid damaging cable-passing packer place cable.
Four, description of drawings:
Structural representation of the present utility model.
Explain: among the figure 1, top connection, 2, the lock pawl, 3, spring; 4, locking nail, 5, the O RunddichtringO, 6, spacer ring; 7, slide block, 8, adapter sleeve, 9, the O RunddichtringO; 10, O RunddichtringO, 11, baffle ring, 12, spring housing; 13, central tube, 14, spring, 15, the O RunddichtringO; 16, lower contact, 17, the cable protection piece
Five, embodiment:
As seen from the figure, outside of the present utility model is connected with lower contact 16, spring housing 12 with adapter sleeve 8 by top connection 1, cable protection piece 17 is installed in top connection 1 and lower contact 16 places respectively, the inside of this sliding sleeve is connected with central tube 13 by lock pawl 2, and fastening by locking nail 4 and O RunddichtringO, slide block 7, spacer ring 6 and spring 3 are equipped with in lock pawl 2 places; In the middle of central tube 13 and spring housing 12, baffle ring 11, springs 14 are installed, and by locking nail 4 and O RunddichtringO fastening with sealing.The controlled sliding sleeve of this hydraulic pressure needs certain starting pressure could promote the central tube action, and after central tube was pushed, then available less pressure was kept the hydraulic control sliding sleeve and opened.After the pressure release, sliding sleeve automatically resets, and recovers sealing, and mechanical lock pins automatically.When oil pipe hydraulic pressure surpassed setting value, the utility model drove central tube and moves down under differential pressure action, the center pore is connected with external trepanning, and connection sliding sleeve space to ground layer is handled or the purpose of circulation well cleanup or kill-job thereby reach.
Claims (1)
1; the controlled sliding sleeve of hydraulic pressure is mainly by central tube; spring housing; adapter sleeve; last lower contact and lock pawl; slide block constitutes; it is characterized in that outside by top connection (1); adapter sleeve (8) and lower contact (16); spring housing (12) connects; cable protection piece (17) is connected to top connection (1) and locates with lower contact (16); the inside of this sliding sleeve is connected with central tube (13) by lock pawl (2); and it is fastening by locking nail (4) and O RunddichtringO; lock pawl (2) locates to be equipped with slide block (7); spacer ring (6) and spring (3); at the middle baffle ring (11) that is equipped with of central tube (13) and spring housing (12); spring (14), and by locking nail (4) and O RunddichtringO fastening with sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271415 CN2635907Y (en) | 2003-08-14 | 2003-08-14 | Hydraulic controllable sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271415 CN2635907Y (en) | 2003-08-14 | 2003-08-14 | Hydraulic controllable sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635907Y true CN2635907Y (en) | 2004-08-25 |
Family
ID=34300728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03271415 Expired - Fee Related CN2635907Y (en) | 2003-08-14 | 2003-08-14 | Hydraulic controllable sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635907Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265792B (en) * | 2008-05-09 | 2011-08-03 | 中国石油天然气集团公司 | Hydraulic switch sliding bush |
| CN102278091A (en) * | 2011-07-11 | 2011-12-14 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102337862A (en) * | 2011-10-17 | 2012-02-01 | 中国石油天然气股份有限公司 | Variable-diameter fracturing valve |
-
2003
- 2003-08-14 CN CN 03271415 patent/CN2635907Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265792B (en) * | 2008-05-09 | 2011-08-03 | 中国石油天然气集团公司 | Hydraulic switch sliding bush |
| CN102278091A (en) * | 2011-07-11 | 2011-12-14 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102278091B (en) * | 2011-07-11 | 2013-12-18 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
| CN102337862A (en) * | 2011-10-17 | 2012-02-01 | 中国石油天然气股份有限公司 | Variable-diameter fracturing valve |
| CN102337862B (en) * | 2011-10-17 | 2014-01-15 | 中国石油天然气股份有限公司 | Variable-diameter fracturing valve |
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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 |