CN201851068U - Anti-reversing hydraulic packer - Google Patents
Anti-reversing hydraulic packer Download PDFInfo
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- CN201851068U CN201851068U CN2010206159127U CN201020615912U CN201851068U CN 201851068 U CN201851068 U CN 201851068U CN 2010206159127 U CN2010206159127 U CN 2010206159127U CN 201020615912 U CN201020615912 U CN 201020615912U CN 201851068 U CN201851068 U CN 201851068U
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- adapter sleeve
- lining
- plug
- rubber stopper
- lug boss
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Abstract
The utility model relates to the technical field of a packer of an oil well, in particular to an anti-reversing hydraulic packer comprising a body, a fixing sleeve, an upper rubber stopper, a main rubber stopper, a lower rubber stopper, a connecting sleeve, a mandrel with reverse teeth, a bush, a lower joint and a connecting sleeve with reverse teeth; and the upper end of the body is fixedly provided with the fixing sleeve, the lower end of the fixing sleeve is provided with an upper outer boss, and the connecting sleeve is arranged on the body below the fixing sleeve. The utility model has a reasonable and compact structure and is convenient to use. The utility model has the following advantages that: (1) because the cylinders of the upper rubber stopper, the lower rubber stopper and the main rubber stopper are matched for use, the cylinder of the main rubber stopper acts as the main function of packing the stratum and the upper rubber stopper and the lower rubber stopper act as an auxiliary packing function, the packing effect is better; (2) the direct contact of the rubber stoppers is avoided by a baffle ring, the cylinder of the main rubber stopper is vulcanized on a bush ring by rubber, and the packing effect is better; (3) because the reverse teeth on the sleeve with small diameter are matched with screw threads on the mandrel with the reverse teeth, the effect of the cylinders of the upper rubber stopper, the lower rubber stopper and the main rubber stopper can not fail because of pressure relief, and the stratum is continuously packed; and (4) the site operation is simple, and the tool reliability is high.
Description
Technical field
The utility model relates to the Wel packing technical field, is a kind of anti-retrogression hydraulic packer.
Background technology
In work progresss such as completion, well workover, stimulation work, often need to use packer packing, to realize purposes such as layer and section exploitation, control water blocking water, reservoir reconstruction every the stratum.And often there is the problem of the following aspects in conventional packer: 1. complex structure, the various processing cost height that causes of parts, and the execute-in-place complex process, the instrument global reliability is low; 2. poor to out-of-shape sleeve pipe adaptive; 3. occur easily when expanding plug mutually hinged, be intertwined, though cause plug can be squeezed on the internal surface of sleeve pipe sealability deficiency; 4. during laboratory test, packer setting to the internal surface of sleeve pipe after, or after packer assembles, need dismounting to keep in repair or be not easy when checking dismounting; 5, the potential safety hazard that exists plug to lose efficacy because of release.
Summary of the invention
The utility model provides a kind of slip-type anti-retrogression hydraulic packer, overcome the deficiency of above-mentioned prior art, it can effectively solve existing packer poor reliability, sits extension power deficiency, to irregular borehole wall adaptive difference and the problem that exists plug to lose efficacy because of release.
The technical solution of the utility model realizes by following measure: a kind of anti-retrogression hydraulic packer comprises body, fixed cover, top cement plug, main plug, bottom plug, adapter sleeve, pawl axle, lining, lower contact and pawl adapter sleeve; 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, adapter sleeve is arranged, in the upper end of adapter sleeve following outer lug boss is arranged, on the body between fixed cover and the adapter 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 the pawl axle in the outside, bottom at body, lower contact and body are fixedly installed togather, the lower end of pawl axle is fixedly mounted in the lower contact, the upper end and the adapter sleeve of lining are fixedly installed togather, there is outer lug boss upper end in the pawl axle, lower inside at lining has inner convex platform, the lower inside surface of inner convex platform is up-narrow and down-wide taper, the pawl axle, lining, form cavity between inner convex platform and the outer lug boss, the pawl adapter sleeve comprises path cover and big footpath cover, the bottom of path cover is fixed together with the inside top of big footpath cover, big footpath cover is installed together by dowel fixes with the pawl axle, the upper end of path cover is up-narrow and down-wide taper and is positioned at the lower inside of inner convex platform, the outside, lower end of path cover is fixed together by screw thread with the inboard, lower end of lining, there is screw thread in the outside in the pawl axle, the outside of path cover has direction to tilt down and can tangle the pawl of screw thread on the pawl axle, pressure transmission hole is arranged on body, between pawl axle and adapter sleeve, spacing is arranged, the pawl axle, adapter 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:
Above-mentioned path puts can at least two open slot.
On the body between above-mentioned top cement plug and the main plug tube baffle ring can be installed; On the body between the adjacent main plug tube, baffle ring is installed; On the body between bottom plug and the main plug tube, baffle ring is installed.
The upper end of above-mentioned top cement plug can be fixed in the mounting groove by the vulcanization of rubber, and the lower end of bottom plug is fixed on down in the mounting groove by the vulcanization of rubber, on the pairing body of main plug tube bush ring is installed, main plug tube by the vulcanization of rubber on bush ring.
The upper end of above-mentioned body can be installed with fixed cover by screw thread; The lower end of pawl axle is fixedly mounted in the lower contact by screw thread, and the inboard outside with adapter sleeve, the upper end of lining is fixedly installed togather.
Can there be the pressure transmission groove that communicates with the pressure transmission chamber inboard, above-mentioned adapter sleeve lower end.
Between above-mentioned main plug tube and the body sealing ring can be installed, between adapter sleeve and the body sealing ring be installed; Between the bottom of adapter 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. because the cooperation of screw thread on the pawl that puts of path and the pawl axle, 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.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Accompanying drawing 2 be in the accompanying drawing 1 A-A to the sectional structure schematic diagram.
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 adapter sleeve, and 7 is the pawl 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 outer lug boss, 13 is inner convex platform, and 14 is cavity, and 15 is the path cover, and 16 is big footpath cover, 17 is pin, and 18 is pressure transmission hole, and 19 are the pressure transmission chamber, and 20 is open slot, 21 is baffle ring, and 22 is bush ring, and 23 are the pressure transmission groove, and 24 is sealing ring.
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.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relation of upper and lower, left and right etc. is what to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, this anti-retrogression hydraulic packer comprises body 1, fixed cover 2, top cement plug 3, main plug 4, bottom plug 5, adapter sleeve 6, pawl axle 7, lining 8, lower contact 9 and pawl adapter sleeve; 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, adapter sleeve 6 is arranged on the body below the fixed cover 21, in the upper end of adapter sleeve 6 following outer lug boss 11 is arranged, on the body 1 between fixed cover 2 and the adapter 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 pawl axle 7 in the outside, bottom at body 1, lower contact 9 is fixedly installed togather with body 1, the lower end of pawl axle 7 is fixedly mounted in the lower contact 9, the upper end of lining 8 and adapter sleeve 6 are fixedly installed togather, in the upper end of pawl axle 7 outer lug boss 12 is arranged, lower inside at lining 8 has inner convex platform 13, the lower inside surface of inner convex platform 13 is up-narrow and down-wide taper, pawl axle 7, lining 8, form cavity 14 between inner convex platform 13 and the outer lug boss 12, the pawl adapter sleeve comprises path cover 15 and greatly directly overlaps 16, the bottom of path cover 15 is fixed together with the inside top of greatly directly overlapping 16, big footpath is overlapped 16 and is fixedly installed togather by pin 17 with pawl axle 7, the upper end of path cover 15 is up-narrow and down-wide taper and is positioned at the lower inside of inner convex platform 13, the outside, lower end of path cover 15 is fixed together by screw thread with the inboard, lower end of lining 8, there is screw thread in the outside in pawl axle 7, the outside of path cover 15 has direction to tilt down and can tangle the pawl of screw thread on the pawl axle 7, pressure transmission hole 18 is arranged on body 1, between pawl axle 7 and adapter sleeve 6, spacing is arranged, pawl axle 7, adapter sleeve 6, form the pressure transmission chamber 19 that communicates with pressure transmission hole 18 between lining 8 and the body 1.Like this, because the pawl on the path cover 15 is stuck on the screw thread of pawl axle 7, 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, packing stratum.
Can according to actual needs above-mentioned anti-retrogression hydraulic packer be made further optimization and/or improvements:
Shown in accompanying drawing 1,2, on path cover 15, at least two open slot 20 is arranged.Can increase the elasticity of path cover 15 by open slot 20, path cover 15 is moved to pawl axle 7 one lateral deviations, like this, the pawl on the path cover 15 can be stuck on the screw thread of pawl axle 7 better.
Shown in accompanying drawing 1,2, on the body 1 between top cement plug 3 and the main plug tube 4 baffle ring 21 is installed; On the body 1 between the adjacent main plug tube 4, baffle ring 21 is installed; On the body between bottom plug 5 and the main plug tube 4, baffle ring 21 is installed, can avoids when rubber is extruded, occurring wavy distortion by baffle ring 21.
Shown in accompanying drawing 1,2, the upper end of top cement plug 3 is fixed in the mounting groove by the vulcanization of rubber, the lower end of bottom plug 5 is fixed on down in the mounting groove by the vulcanization of rubber, on main plug tube 4 pairing bodies 1, bush ring 22 is installed, main plug tube 4 by the vulcanization of rubber on bush ring, like this, just avoid when plug expands, occurring that plug is mutually hinged, being intertwined causes the situation of packing scarce capacity, make that the packer sealing ability is better.
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 pawl axle 7 is fixedly mounted in the lower contact 9 by screw thread, and the inboard outside with adapter sleeve 6, the upper end of lining 8 is fixedly installed togather.
As shown in Figure 1, for the ease of transmitting pressure, there is the pressure transmission groove 23 that communicates with pressure transmission chamber 19 inboard, adapter sleeve 6 lower end.
As shown in Figure 1,, between main plug tube 4 and the body 1 sealing ring 24 is installed, between adapter sleeve 6 and the body 1 sealing ring 24 is installed in order to increase sealing; Between the bottom of adapter sleeve 6 and the lining 8 sealing ring 24 is installed, between the top of outer lug boss 12 and the body 1 sealing ring 24 is installed; Between the top of outer lug boss 12 and the lining 8 sealing ring 24 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: when using at the scene, the utility model is connected to sends on the tubing string, down to the design level position.When pressing when spraining in the pipe, adapter sleeve 6 is stressed to a certain degree the time, pin 17 is cut off, adapter sleeve 6 drives lining 8, the pawl adapter sleeve is along moving on the cavity 14, extruding bottom plug 5, after putting in place, bottom plug 5 extruding will promote the main plug tube 4 of baffle ring 21 extruding, after putting in place, main plug tube 4 extruding will promote baffle ring 21 extruding top cement plugs 3, continue to sprain straightening to realizing seat shut-in well wall, the packing stratum, at this moment, because the pawl on the path cover 15 is stuck on the screw thread of pawl axle 7, 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. an anti-retrogression hydraulic packer is characterized in that comprising body, fixed cover, top cement plug, main plug, bottom plug, adapter sleeve, pawl axle, lining, lower contact and pawl adapter sleeve; 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, adapter sleeve is arranged, in the upper end of adapter sleeve following outer lug boss is arranged, on the body between fixed cover and the adapter 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 the pawl axle in the outside, bottom at body, lower contact and body are fixedly installed togather, the lower end of pawl axle is fixedly mounted in the lower contact, the upper end and the adapter sleeve of lining are fixedly installed togather, there is outer lug boss upper end in the pawl axle, lower inside at lining has inner convex platform, the lower inside surface of inner convex platform is up-narrow and down-wide taper, the pawl axle, lining, form cavity between inner convex platform and the outer lug boss, the pawl adapter sleeve comprises path cover and big footpath cover, the bottom of path cover is fixed together with the inside top of big footpath cover, big footpath cover is installed together by dowel fixes with the pawl axle, the upper end of path cover is up-narrow and down-wide taper and is positioned at the lower inside of inner convex platform, the outside, lower end of path cover is fixed together by screw thread with the inboard, lower end of lining, there is screw thread in the outside in the pawl axle, the outside of path cover has direction to tilt down and can tangle the pawl of screw thread on the pawl axle, pressure transmission hole is arranged on body, between pawl axle and adapter sleeve, spacing is arranged, the pawl axle, adapter sleeve, form the pressure transmission chamber that communicates with pressure transmission hole between lining and the body.
2. anti-retrogression hydraulic packer according to claim 1 is characterized in that path puts at least two open slot.
3. anti-retrogression hydraulic packer according to claim 1 and 2 is characterized in that on the body between top cement plug and the main plug tube baffle ring being installed; On the body between the adjacent main plug tube, baffle ring is installed; On the body between bottom plug and the main plug tube, baffle ring is installed.
4. anti-retrogression hydraulic packer according to claim 1 and 2, the upper end that it is characterized in that top cement plug is fixed in the mounting groove by the vulcanization of rubber, the lower end of bottom plug is fixed on down in the mounting groove by the vulcanization of rubber, on the pairing body of main plug tube, bush ring is installed, main plug tube by the vulcanization of rubber on bush ring.
5. anti-retrogression hydraulic packer according to claim 3, the upper end that it is characterized in that top cement plug is fixed in the mounting groove by the vulcanization of rubber, the lower end of bottom plug is fixed on down in the mounting groove by the vulcanization of rubber, on the pairing body of main plug tube, bush ring is installed, main plug tube by the vulcanization of rubber on bush ring.
6. anti-retrogression hydraulic packer according to claim 1 and 2 is characterized in that the upper end of body is installed with fixed cover by screw thread; The lower end of pawl axle is fixedly mounted in the lower contact by screw thread, and the inboard outside with adapter sleeve, the upper end of lining is fixedly installed togather.
7. anti-retrogression 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 pawl axle is fixedly mounted in the lower contact by screw thread, and the inboard outside with adapter sleeve, the upper end of lining is fixedly installed togather.
8. anti-retrogression hydraulic packer according to claim 7 is characterized in that there is the pressure transmission groove that communicates with the pressure transmission chamber inboard, adapter sleeve lower end.
9. anti-retrogression hydraulic packer according to claim 1 and 2 is characterized in that between main plug tube and the body sealing ring being installed, and between adapter sleeve and the body sealing ring is installed; Between the bottom of adapter 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. anti-retrogression hydraulic packer according to claim 8 is characterized in that between main plug tube and the body sealing ring being installed, and between adapter sleeve and the body sealing ring is installed; Between the bottom of adapter 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206159127U CN201851068U (en) | 2010-11-21 | 2010-11-21 | Anti-reversing hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206159127U CN201851068U (en) | 2010-11-21 | 2010-11-21 | Anti-reversing hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851068U true CN201851068U (en) | 2011-06-01 |
Family
ID=44093467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206159127U Expired - Fee Related CN201851068U (en) | 2010-11-21 | 2010-11-21 | Anti-reversing hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851068U (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
- 2010-11-21 CN CN2010206159127U patent/CN201851068U/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: 20110601 Termination date: 20161121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |