CN201650201U - Hydraulic packer - Google Patents
Hydraulic packer Download PDFInfo
- Publication number
- CN201650201U CN201650201U CN201020187722XU CN201020187722U CN201650201U CN 201650201 U CN201650201 U CN 201650201U CN 201020187722X U CN201020187722X U CN 201020187722XU CN 201020187722 U CN201020187722 U CN 201020187722U CN 201650201 U CN201650201 U CN 201650201U
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- Prior art keywords
- joint sleeve
- axle
- lining
- ring
- rubber plug
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic packer, which relates to the technical field of oil well packers. The hydraulic packer comprises a body, a fixed sleeve, an upper rubber plug, a main rubber plug, a lower rubber plug, an upper connecting sleeve, a mandrel, a lining sleeve and a lower joint, wherein the fixed sleeve is fixedly arranged at the upper end of the body, the lower end of the fixed sleeve is provided with an upper outer lug boss, and the upper connecting sleeve is arranged on the body arranged under the fixed sleeve. The utility model has reasonable and compact structure and convenient use. The utility model is characterized in that 1. because the upper rubber plug, the lower rubber plug and a main rubber plug tube are matched and used, the main rubber plug tube has the effect of mainly packing the stratum, the upper rubber plug and the lower rubber plug have the auxiliary packing effect, and the packing effect is good; 2. the direct contact of the rubber plugs is avoided through a second baffle ring, the main rubber plug tube is vulcanized on the lining sleeve ring by rubber, the wave-shaped deformation of the rubber when being squeezed is avoided, and the packing effect is good; 3. because of the effect of a reverse tooth ring, the upper rubber plug, the lower rubber plug and the main rubber plug tube can not fail because of the pressure relief, and the stratum can be persistently packed; and 4. the in-site operation is simple, and the tool reliability is high.
Description
One, technical field
The utility model relates to the Wel packing technical field, is a kind of hydraulic packer.
Two, background technology
In work progresss such as oilfield well completion, well workover, stimulation work, often need to use packer to sit and hang on the borehole wall and the packing stratum, to realize purposes such as layer and section exploitation, control water blocking water, reservoir reconstruction.And often there is the problem of the following aspects in conventional packer: 1. complex structure, parts are various, cause processing cost height, execute-in-place complex process, and the instrument global reliability is low; 2. packing scarce capacity when setting in sleeve pipe; 3. poor to irregular borehole wall adaptive.
Three, summary of the invention
The utility model provides a kind of hydraulic packer, has overcome the deficiency of above-mentioned prior art, and it can effectively solve, and existing packer reliability is low, packing scarce capacity and to the problem of irregular borehole wall adaptive difference.
The technical solution of the utility model realizes by following measure: a kind of hydraulic packer comprises body, fixed cover, top cement plug, main plug, bottom plug, upper joint sleeve, axle, lining and lower contact; Upper end at body is installed with fixed cover, outer lug boss on the lower end of fixed cover has, on the body below the fixed cover, upper joint sleeve is arranged, in the upper end of upper joint sleeve following outer lug boss is arranged, on the body between fixed cover and the upper joint sleeve, be set with top cement plug in regular turn, the main plug tube and the bottom plug of at least two groups, the upper end of top cement plug between last outer lug boss and body in the mounting groove, in the following mounting groove of the upper end of bottom plug between following outer lug boss and body, there is axle in the outside, bottom at body, lower contact and body are fixedly installed togather, the lower end of axle is fixedly mounted in the lower contact, by dowel fixes lining is installed in the axle outside, the upper end and the upper joint sleeve of lining are fixedly installed togather, pressure transmission hole is arranged on body, between axle and upper joint sleeve, spacing is arranged, axle, upper joint sleeve, form the pressure transmission chamber that communicates with pressure transmission hole between lining and the body.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Can there be outer lug boss the upper end of above-mentioned axle, lower inside at lining has inner convex platform, the bottom of inner convex platform is the up-narrow and down-wide conical surface, axle, lining, form cavity between inner convex platform and the outer lug boss, be installed with lower joint sleeve between the lining of inner convex platform below and the axle, lower joint sleeve and axle are installed together by dowel fixes, at lower joint sleeve, axle, form installation cavity between inner convex platform and the lining, the pawl ring is installed in installation cavity from top to bottom in regular turn, first baffle ring and the pretension elastic ring that pawl ring and baffle ring upwards can be held out against, on the medial surface of pawl ring pawl is arranged, the top of pawl ring is the up-narrow and down-wide conical surface and is positioned at the conical surface inboard of inner convex platform.
The upper end of above-mentioned axle can be fixedly installed togather by screw and body.
On the body between above-mentioned top cement plug and the main plug tube second baffle ring can be installed; Or/and, on the body between the adjacent main plug tube, second baffle ring is installed; Or/and, on the body between bottom plug and the main plug tube, second baffle ring is installed.
Above-mentioned main plug tube can comprise bush ring and rubber, and the vulcanization of rubber is on bush ring.
The upper end of above-mentioned body can be installed with fixed cover by screw thread; The lower end of axle is fixedly mounted in the lower contact by screw thread, and the inboard outside with upper joint sleeve, the upper end of lining has been fixedly mounted on.
The inboard, lower end of the upper outside of above-mentioned lower joint sleeve and lining can be fixedly installed togather.
Can there be the pressure transmission groove that communicates with the pressure transmission chamber inboard, above-mentioned upper joint sleeve lower end.
Between above-mentioned main plug tube and the body sealing ring can be installed, between upper joint sleeve and the body sealing ring be installed; Between the bottom of upper joint sleeve and the lining sealing ring is installed, between the top of outer lug boss and the body sealing ring is installed; Between the top of outer lug boss and the lining sealing ring is installed.
The utility model reasonable and compact in structure, easy to use: 1. because top cement plug, bottom plug and main plug tube are used, and main plug tube plays the effect of main packing stratum, and top cement plug and bottom plug play auxiliary packing effect, the packing effect is better; 2. avoid plug directly to contact by second baffle ring, main plug tube on bush ring, avoids occurring wavy distortion, the packing better effects if by the vulcanization of rubber when rubber is extruded; 3. owing to the effect of pawl ring, top cement plug, bottom plug and main plug tube can not lose efficacy because of release, will continue the packing stratum; 4. execute-in-place is simple, the tool reliability height.
Four, description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Coding in the accompanying drawing is respectively: 1 is body, and 2 is fixed cover, and 3 is top cement plug, and 4 is main plug, 5 is bottom plug, and 6 is upper joint sleeve, and 7 is axle, and 8 is lining, 9 are lower contact, and 10 is last outer lug boss, and 11 are following outer lug boss, and 12 is pin, 13 is pressure transmission hole, and 14 are the pressure transmission chamber, and 15 are the pressure transmission groove, and 16 is second baffle ring, 17 is sealing ring, and 18 is the pretension elastic ring, and 19 is outer lug boss, and 20 is inner convex platform, 21 is cavity, and 22 is lower joint sleeve, and 23 is the pawl ring, and 24 is first baffle ring.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this hydraulic packer comprises body 1, fixed cover 2, top cement plug 3, main plug 4, bottom plug 5, upper joint sleeve 6, axle 7, lining 8 and lower contact 9; Be installed with fixed cover 2 in the upper end of body 1, outer lug boss 10 on the lower end of fixed cover 2 has, upper joint sleeve 6 is arranged on the body below the fixed cover 21, in the upper end of upper joint sleeve 6 following outer lug boss 11 is arranged, on the body 1 between fixed cover 2 and the upper joint sleeve 6, be set with top cement plug 3 in regular turn, the main plug tube 4 and the bottom plug 5 of at least two groups, the upper end of top cement plug 3 between last outer lug boss 10 and body 1 in the mounting groove, in the following mounting groove of the upper end of bottom plug 5 between following outer lug boss 11 and body 1, there is axle 7 in the outside, bottom at body 1, lower contact 9 is fixedly installed togather with body 1, the lower end of axle 7 is fixedly mounted in the lower contact 9, be installed with lining 8 in axle 7 outsides by pin 12, the upper end of lining 8 and upper joint sleeve 6 are fixedly installed togather, pressure transmission hole 13 is arranged on body 1, between axle 7 and upper joint sleeve 6, spacing is arranged, axle 7, upper joint sleeve 6, form the pressure transmission chamber 14 that communicates with pressure transmission hole 13 between lining 8 and the body 1.Like this, top cement plug 3, plug 5 are used with main plug tube 4, and main plug tube 4 plays the effect of main packing stratum, and top cement plug 3 and bottom plug 5 play auxiliary packing effect, and the packing effect is better.
Can according to actual needs above-mentioned hydraulic packer be made further optimization and/or improvements:
As shown in Figure 1, there is outer lug boss 19 upper end of axle 7, lower inside at lining 8 has inner convex platform 20, the bottom of inner convex platform 20 is the up-narrow and down-wide conical surface, axle 7, lining 8, form cavity 21 between inner convex platform 20 and the outer lug boss 19, be installed with lower joint sleeve 22 between the lining 8 of inner convex platform 20 belows and the axle 7, lower joint sleeve 22 is fixedly installed togather by pin 12 with axle 7, at lower joint sleeve 22, axle 7, form installation cavity between inner convex platform 20 and the lining 8, pawl ring 23 is installed in installation cavity from top to bottom in regular turn, first baffle ring 24 and the pretension elastic ring 18 that pawl ring 23 and baffle ring 24 upwards can be held out against, on the medial surface of pawl ring 23, pawl is arranged, the top of pawl ring 23 is the up-narrow and down-wide conical surface and is positioned at the conical surface inboard of inner convex platform 20, like this, the seat that builds the pressure in the pipe is honored as a queen, since the effect of pawl ring 23, top cement plug 3, main plug 4 and bottom plug 5 can not lose efficacy because of release, will continue a shut-in well wall, the packing stratum.
As shown in Figure 1, in order to increase the stability of axle 7, the upper end of axle 7 is fixedly installed togather by screw and body 1.
As shown in Figure 1, according to actual conditions, on the body 1 between top cement plug 3 and the main plug tube 4 second baffle ring 16 is installed; Or/and, on the body 1 between the adjacent main plug tube 4, second baffle ring 16 is installed; Or/and, on the body between bottom plug 5 and the main plug tube 4, second baffle ring 16 is installed; Can avoid plug directly to contact like this, as required, main plug tube comprises bush ring and rubber, and the vulcanization of rubber like this, can avoid occurring wavy distortion, the packing better effects if when rubber is extruded on bush ring.
As shown in Figure 1, for the ease of installation and removal, the upper end of body 1 is installed with fixed cover 2 by screw thread; The lower end of axle 7 is fixedly mounted in the lower contact 9 by screw thread, and the inboard outside with upper joint sleeve 6, the upper end of lining 8 is fixedly installed togather.
As shown in Figure 1, for the ease of installation and removal, the inboard, lower end of the upper outside of lower joint sleeve 22 and lining 8 is fixedly installed togather.
As shown in Figure 1, for the ease of transmitting pressure, there is the pressure transmission groove 15 that communicates with pressure transmission chamber 14 inboard, upper joint sleeve 6 lower end.
As shown in Figure 1,, between main plug tube 4 and the body 1 sealing ring 17 is installed, between upper joint sleeve 6 and the body 1 sealing ring 17 is installed in order to increase sealing; Between the bottom of upper joint sleeve 6 and the lining 8 sealing ring 17 is installed, between the top of outer lug boss 19 and the body 1 sealing ring 17 is installed; Between the top of outer lug boss 19 and the lining 8 sealing ring 17 is installed.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: during on-the-spot the use, the utility model is connected to sends on the tubing string, down to the design level position.When building the pressure in the pipe, upper joint sleeve 6 is stressed to a certain degree the time, pin 12 is cut off, upper joint sleeve 6 drives lining 8, lower joint sleeve 22 is along moving on the cavity 21, extruding bottom plug 5, after putting in place, bottom plug 5 extruding will promote the main plug tube 4 of second baffle ring, 16 extruding, after putting in place, main plug tube 4 extruding will promote second baffle ring, 16 extruding top cement plugs 3, continue to build the pressure until realizing seat shut-in well wall, the packing stratum, at this moment, because the pawl of pawl ring 23 is stuck on the inwall of axle 7 slips 3, top cement plug 3, main plug tube 4 and bottom plug 5 can not lose efficacy because of release, will continue a shut-in well wall, the packing stratum.
Claims (10)
1. a hydraulic packer is characterized in that comprising body, fixed cover, top cement plug, main plug, bottom plug, upper joint sleeve, axle, lining and lower contact; Upper end at body is installed with fixed cover, outer lug boss on the lower end of fixed cover has, on the body below the fixed cover, upper joint sleeve is arranged, in the upper end of upper joint sleeve following outer lug boss is arranged, on the body between fixed cover and the upper joint sleeve, be set with top cement plug in regular turn, the main plug tube and the bottom plug of at least two groups, the upper end of top cement plug between last outer lug boss and body in the mounting groove, in the following mounting groove of the upper end of bottom plug between following outer lug boss and body, there is axle in the outside, bottom at body, lower contact and body are fixedly installed togather, the lower end of axle is fixedly mounted in the lower contact, by dowel fixes lining is installed in the axle outside, the upper end and the upper joint sleeve of lining are fixedly installed togather, pressure transmission hole is arranged on body, between axle and upper joint sleeve, spacing is arranged, axle, upper joint sleeve, form the pressure transmission chamber that communicates with pressure transmission hole between lining and the body.
2. hydraulic packer according to claim 1, there is outer lug boss the upper end that it is characterized in that axle, lower inside at lining has inner convex platform, the bottom of inner convex platform is the up-narrow and down-wide conical surface, axle, lining, form cavity between inner convex platform and the outer lug boss, be installed with lower joint sleeve between the lining of inner convex platform below and the axle, lower joint sleeve and axle are installed together by dowel fixes, at lower joint sleeve, axle, form installation cavity between inner convex platform and the lining, the pawl ring is installed in installation cavity from top to bottom in regular turn, first baffle ring and the pretension elastic ring that pawl ring and baffle ring upwards can be held out against, on the medial surface of pawl ring pawl is arranged, the top of pawl ring is the up-narrow and down-wide conical surface and is positioned at the conical surface inboard of inner convex platform.
3. hydraulic packer according to claim 2 is characterized in that the upper end of axle is fixedly installed togather by screw and body.
4. according to claim 1 or 2 or 3 described hydraulic packers, it is characterized in that on the body between top cement plug and the main plug tube second baffle ring being installed; Or/and, on the body between the adjacent main plug tube, second baffle ring is installed; Or/and, on the body between bottom plug and the main plug tube, second baffle ring is installed.
5. hydraulic packer according to claim 4 is characterized in that main plug tube comprises bush ring and rubber, and the vulcanization of rubber is on bush ring.
6. hydraulic packer according to claim 5 is characterized in that the upper end of body is installed with fixed cover by screw thread; The lower end of axle is fixedly mounted in the lower contact by screw thread, and the inboard outside with upper joint sleeve, the upper end of lining is fixedly installed togather.
7. hydraulic packer according to claim 6 is characterized in that the upper outside of lower joint sleeve and the inboard, lower end of lining are fixedly installed togather.
8. hydraulic packer according to claim 7 is characterized in that there is the pressure transmission groove that communicates with the pressure transmission chamber inboard, upper joint sleeve lower end.
9. according to claim 1 or 2 or 3 described hydraulic packers, it is characterized in that between main plug tube and the body sealing ring being installed, between upper joint sleeve and the body sealing ring is installed; Between the bottom of upper joint sleeve and the lining sealing ring is installed, between the top of outer lug boss and the body sealing ring is installed; Between the top of outer lug boss and the lining sealing ring is installed.
10. hydraulic packer according to claim 8 is characterized in that between main plug tube and the body sealing ring being installed, and between upper joint sleeve and the body sealing ring is installed; Between the bottom of upper joint sleeve and the lining sealing ring is installed, between the top of axle and the body sealing ring is installed; Between the top of axle and the lining sealing ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020187722XU CN201650201U (en) | 2010-05-12 | 2010-05-12 | Hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020187722XU CN201650201U (en) | 2010-05-12 | 2010-05-12 | Hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650201U true CN201650201U (en) | 2010-11-24 |
Family
ID=43115433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020187722XU Expired - Fee Related CN201650201U (en) | 2010-05-12 | 2010-05-12 | Hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670324A (en) * | 2013-09-07 | 2014-03-26 | 中国石油集团西部钻探工程有限公司 | Claw sleeve type hydraulic packer |
| CN104373076A (en) * | 2014-10-28 | 2015-02-25 | 中国石油集团西部钻探工程有限公司 | Composite rubber sleeve device |
-
2010
- 2010-05-12 CN CN201020187722XU patent/CN201650201U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670324A (en) * | 2013-09-07 | 2014-03-26 | 中国石油集团西部钻探工程有限公司 | Claw sleeve type hydraulic packer |
| CN103670324B (en) * | 2013-09-07 | 2016-03-02 | 中国石油集团西部钻探工程有限公司 | Pawl sleeve type hydraulic packer |
| CN104373076A (en) * | 2014-10-28 | 2015-02-25 | 中国石油集团西部钻探工程有限公司 | Composite rubber sleeve device |
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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: 20101124 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |