CN202273622U - Centralizing hydraulic anchor - Google Patents
Centralizing hydraulic anchor Download PDFInfo
- Publication number
- CN202273622U CN202273622U CN 201120419661 CN201120419661U CN202273622U CN 202273622 U CN202273622 U CN 202273622U CN 201120419661 CN201120419661 CN 201120419661 CN 201120419661 U CN201120419661 U CN 201120419661U CN 202273622 U CN202273622 U CN 202273622U
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- China
- Prior art keywords
- mounting groove
- grappling
- anchoring device
- type hydraulic
- convex platform
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- 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.)
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Abstract
The utility model relates to the technical field of underground anchoring tools, in particular to a centralizing hydraulic anchor, which comprises an upper connector, a body, anchoring devices and a centralizing cover. An outer side of the lower end of the upper connector is fixedly connected with an inner side of the upper end of the body. At least two groups of anchoring devices are arranged in the middle of the body from the top to the bottom at intervals, and each group of the anchoring devices is distributed on the body at intervals along the circumference. Annular grooves are arranged on the body above the anchoring devices, centralizing cover installing grooves with the length larger than the length of the annular grooves are distributed on the body outside the annular grooves along the circumference at intervals, the centralizing cover is arranged on the centralizing cover installing grooves, and a boss with an outer diameter larger than the outer diameter of the anchoring devices is fixed on the outer side of the middle of the centralizing cover. The centralizing hydraulic anchor is reasonable and compact in structure and convenient to use, not only can be centralized well, but also avoids eccentric abrasion of an anchoring die, and improves anchoring capacity by arranging the elastic centralizing cover and a centralizing block above and below the anchoring devices respectively.
Description
Technical field
the utility model relates to down-hole anchor tool technical field, is a kind of righting type hydraulic anchor.
Background technology
in the exploration and development process of oil gas field, pressure break is that important measures of taping the latent power are transformed in the oil field transformation, for significant contribution has been made in oil gas stable high yield; In fracturing process, open sliding sleeve after, the pressure of spraining in the pipe; So that with the pressure break payzone, at this moment, pressure reaches high pressure even super-pressure rank; Thereby the construction operation of this high pressure even superelevation often causes pressure break pipe string and receives interior pressure stretch long up along sleeve pipe; And conventional righting type hydraulic anchor often causes in the process of being lowered to because both sides do not have righting mechanism, owing to the damage that does not cause the grappling dental lamina between two parties of pressure break pipe string.
Summary of the invention
the utility model provides a kind of righting type hydraulic anchor, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the flimsy problem of grappling dental lamina in the use of righting type hydraulic anchor.
The technical scheme of
the utility model realizes through following measure: a kind of righting type hydraulic anchor comprises top connection, body, anchoring device and supporting positive cover; The inboard, upper end of the lower outside of top connection and body is fixed together; The middle part of body is equipped with the anchoring device of at least two groups from top to bottom at interval; Every group of anchoring device along circumferentially-spaced on body; On the body above the anchoring device, annular groove is arranged; Body upper edge circumferentially-spaced in the annular groove outside has the supporting positive cover mounting groove of length greater than annular groove, on the supporting positive cover mounting groove, supporting positive cover is installed, and on the outside, middle part of supporting positive cover, is fixed with the boss of external diameter greater than the anchoring device external diameter.
Be to the further optimization of above-mentioned utility model technical scheme below or/and improve:
Can there be convex platform and middle boss in the middle part of
above-mentioned body, in the bottom of body lower convex platform is arranged, and the external diameter of top connection forms the supporting positive cover mounting groove greater than the external diameter of body between convex platform and the top connection; On the supporting positive cover mounting groove, supporting positive cover is installed; Body between convex platform and the middle boss is equipped with the anchoring device of at least two groups from top to bottom at interval; Every group of anchoring device on body, radially is intervally distributed with at least two elongated slot along circumferentially-spaced in the bottom of body, on the inner diapire of elongated slot, be intervally distributed with the inner spring mounting groove from top to bottom; Wiper block comprises upper binding head, lower union joint and the external diameter head of setting upright greater than the anchoring device external diameter; The lower end inboard and upper binding head, upper end of setting upright head is fixed together, and the upper end inboard and lower union joint, lower end of setting upright head is fixed together, and in the outside of upper binding head and lower union joint spacing catch is arranged; Spacing catch is fixedly mounted on the body; Inboard setting upright head has and the corresponding outer spring mounting groove of spring mounting groove, in inner spring mounting groove and outer spring mounting groove, is equipped with to be the compression spring that compresses shape, between the inner diapire of upper binding head and lower union joint and elongated slot spacing is arranged.
above-mentioned spacing catch and body can be installed together through screw.
above-mentioned every group of anchoring device can comprise grappling dental lamina and baffle plate; Be distributed with the low grappling tooth in middle high both sides in grappling dental lamina outer end; The middle part of grappling dental lamina from outer in jagged and at least one spring mounting groove that communicates with breach; On the body between convex platform and the middle boss, have and the corresponding through hole of grappling dental lamina; There is inner convex platform the inner at through hole; The inner of grappling dental lamina is installed on the inner convex platform, on the body between convex platform and the middle boss, is installed with corresponding with breach and blocks the baffle plate of breach, between baffle plate and spring mounting groove, the compression spring is installed.
above-mentioned baffle plate and body can be installed together through screw.
are above-mentioned can be equipped with sealing ring between grappling dental lamina and body.
above-mentioned top connection and body can be fixedly installed togather through screw thread.
the utility model reasonable and compact in structure; Easy to use, through being separately installed with rubber-like supporting positive cover and wiper block in the anchoring device above and below, can not only be placed in the middle well; Also avoid the eccentric wear of grappling dental lamina to damage, improved the grappling ability.
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 is that the A-A of accompanying drawing 1 is to the sectional structure sketch map.
accompanying drawing 3 is that the B-B of accompanying drawing 1 is to the sectional structure sketch map.
Coding in
accompanying drawing is respectively: 1 is top connection, and 2 is body, and 3 is supporting positive cover, and 4 is annular groove, and 5 is boss; 6 is convex platform, and 7 is middle boss, and 8 is lower convex platform, and 9 is elongated slot, and 10 is upper binding head; 11 is lower union joint, and 12 for setting upright head, and 13 is spacing catch, and 14 are the compression spring, and 15 is baffle plate; 16 is inner convex platform, and 17 are the grappling dental lamina, and 18 is sealing ring, and 19 is screw, and 20 is breach.
The specific embodiment
the utility model does not receive the restriction of following embodiment, can confirm concrete embodiment according to the technical scheme and the actual conditions of the utility model.
are in the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description 1, as: the position relation of forward and backward, upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
like accompanying drawing 1, shown in 2, this righting type hydraulic anchor comprises top connection 1, body 2, anchoring device and supporting positive cover 3; The inboard, upper end of the lower outside of top connection 1 and body 2 is fixed together; The middle part of body 2 is equipped with the anchoring device of at least two groups from top to bottom at interval; Every group of anchoring device along circumferentially-spaced on body 2; Annular groove 4 is arranged on the body above the anchoring device 2; Body 2 upper edge circumferentially-spaced in annular groove 4 outsides have the supporting positive cover mounting groove of length greater than annular groove 4, and supporting positive cover 3 is installed on the supporting positive cover mounting groove, on the outside, middle part of supporting positive cover 3, are fixed with the boss 5 of external diameter greater than the anchoring device external diameter.Like this, boss 5 has better elastic and sets upright function.
Can according to actual needs above-mentioned righting type hydraulic anchor be done further to optimize or/and improve:
have convex platform 6 and middle boss 7 at the middle part of body 2 shown in accompanying drawing 1, in the bottom of body 2 lower convex platform 8 is arranged, and the external diameter of top connection 1 forms the supporting positive cover mounting groove greater than the external diameter of body 2 between convex platform 6 and the top connection 1; Supporting positive cover 3 is installed on the supporting positive cover mounting groove; Body 2 between convex platform 6 and the middle boss 7 is equipped with the anchoring device of at least two groups from top to bottom at interval; Every group of anchoring device along circumferentially-spaced on body 2; Radially be intervally distributed with at least two elongated slot 9 in the bottom of body 2; On the inner diapire of elongated slot 9, be intervally distributed with the inner spring mounting groove from top to bottom, wiper block comprise upper binding head 10, lower union joint 11 and external diameter greater than the anchoring device external diameter set upright 12, set upright a lower end inboard and upper binding head 10, upper end of 12 and be fixed together; Setting upright a upper end inboard and lower union joint 11, lower end of 12 is fixed together; There is spacing catch 13 in the outside at upper binding head 10 and lower union joint 11, and spacing catch 13 is fixedly mounted on the body 2, has and the corresponding outer spring mounting groove of spring mounting groove in an inboard of setting upright 12; In inner spring mounting groove and outer spring mounting groove, be equipped with and be the compression spring 14 that compresses shape, between the inner diapire of upper binding head 10 and lower union joint 11 and elongated slot 9 spacing is arranged.Like this, because compression spring 14 is arranged, set upright 12 and have better elastic and set upright function.
Shown in accompanying drawing 1, for the ease of installation and removal, spacing catch 13 is fixedly installed togather through screw 19 with body 2
.
like accompanying drawing 1, shown in 3, every group of anchoring device comprises grappling dental lamina 17 and baffle plate 15; Be distributed with the low grappling tooth in middle high both sides in grappling dental lamina 17 outer ends; The middle part of grappling dental lamina 17 from outer in jagged 20 and at least one spring mounting groove that communicates with breach 20; On the body 2 between convex platform 6 and the middle boss 7, have and grappling dental lamina 17 corresponding through holes; In the inner of through hole inner convex platform 16 is arranged; The inner of grappling dental lamina 17 is installed on the inner convex platform 16, on the body 2 between convex platform 6 and the middle boss 7, is installed with corresponding with breach 20 and blocks the baffle plate 15 of breach 20, and compression spring 14 is installed between baffle plate 15 and spring mounting groove.
Shown in accompanying drawing 1, for the ease of installation and removal, baffle plate 15 is fixedly installed togather through screw 19 with body 2
.
in order to increase sealing, are equipped with sealing ring 18 between grappling dental lamina 17 and body 2 shown in accompanying drawing 1.
Shown in accompanying drawing 1, for the ease of installation and removal, top connection 1 and body 2 are fixedly installed togather through screw thread
.
above technical characterictic has constituted the most preferred embodiment of the 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 use, the utility model is connected on the pipe string, fashionable under utility model; Supporting positive cover 3 with set upright under 12 the effect, effectively protected grappling dental lamina 17, when being lowered to design attitude; The pressure of spraining in the pipe, grappling dental lamina 17 outwards moves under action of hydraulic force, the grappling tooth wedging sleeve pipe on the grappling dental lamina 17; Thereby fixed the pipe string, avoided it up; When pipe internal pressure when being released, grappling dental lamina 17 is built in the body in the effect contraction down of compression spring 14 again, is convenient to the construction operations such as recovery, replacing of later stage upper tool.
Claims (10)
1. a righting type hydraulic anchor is characterized in that comprising top connection, body, anchoring device and supporting positive cover; The inboard, upper end of the lower outside of top connection and body is fixed together; The middle part of body is equipped with the anchoring device of at least two groups from top to bottom at interval; Every group of anchoring device along circumferentially-spaced on body; On the body above the anchoring device, annular groove is arranged; Body upper edge circumferentially-spaced in the annular groove outside has the supporting positive cover mounting groove of length greater than annular groove, on the supporting positive cover mounting groove, supporting positive cover is installed, and on the outside, middle part of supporting positive cover, is fixed with the boss of external diameter greater than the anchoring device external diameter.
2. righting type hydraulic anchor according to claim 1 is characterized in that there are convex platform and middle boss in the middle part of body, in the bottom of body lower convex platform is arranged, and the external diameter of top connection forms the supporting positive cover mounting groove greater than the external diameter of body between convex platform and the top connection; On the supporting positive cover mounting groove, supporting positive cover is installed; Body between convex platform and the middle boss is equipped with the anchoring device of at least two groups from top to bottom at interval; Every group of anchoring device on body, radially is intervally distributed with at least two elongated slot along circumferentially-spaced in the bottom of body, on the inner diapire of elongated slot, be intervally distributed with the inner spring mounting groove from top to bottom; Wiper block comprises upper binding head, lower union joint and the external diameter head of setting upright greater than the anchoring device external diameter; The lower end inboard and upper binding head, upper end of setting upright head is fixed together, and the upper end inboard and lower union joint, lower end of setting upright head is fixed together, and in the outside of upper binding head and lower union joint spacing catch is arranged; Spacing catch is fixedly mounted on the body; Inboard setting upright head has and the corresponding outer spring mounting groove of spring mounting groove, in inner spring mounting groove and outer spring mounting groove, is equipped with to be the compression spring that compresses shape, between the inner diapire of upper binding head and lower union joint and elongated slot spacing is arranged.
3. righting type hydraulic anchor according to claim 2 is characterized in that spacing catch and body are installed together through screw.
4. according to claim 2 or 3 described righting type hydraulic anchors, it is characterized in that every group of anchoring device comprises grappling dental lamina and baffle plate; Be distributed with the low grappling tooth in middle high both sides in grappling dental lamina outer end; The middle part of grappling dental lamina from outer in jagged and at least one spring mounting groove that communicates with breach; On the body between convex platform and the middle boss, have and the corresponding through hole of grappling dental lamina; There is inner convex platform the inner at through hole; The inner of grappling dental lamina is installed on the inner convex platform, on the body between convex platform and the middle boss, is installed with corresponding with breach and blocks the baffle plate of breach, between baffle plate and spring mounting groove, the compression spring is installed.
5. righting type hydraulic anchor according to claim 4 is characterized in that baffle plate and body are installed together through screw.
6. righting type hydraulic anchor according to claim 4 is characterized in that between grappling dental lamina and the body sealing ring being installed.
7. righting type hydraulic anchor according to claim 5 is characterized in that between grappling dental lamina and the body sealing ring being installed.
8. according to claim 1 or 2 or 3 described righting type hydraulic anchors, it is characterized in that top connection and body are fixedly installed togather through screw thread.
9. righting type hydraulic anchor according to claim 4 is characterized in that top connection and body are fixedly installed togather through screw thread.
10. righting type hydraulic anchor according to claim 7 is characterized in that top connection and body are fixedly installed togather through screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120419661 CN202273622U (en) | 2011-10-29 | 2011-10-29 | Centralizing hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120419661 CN202273622U (en) | 2011-10-29 | 2011-10-29 | Centralizing hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273622U true CN202273622U (en) | 2012-06-13 |
Family
ID=46193986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120419661 Expired - Lifetime CN202273622U (en) | 2011-10-29 | 2011-10-29 | Centralizing hydraulic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966321A (en) * | 2012-12-26 | 2013-03-13 | 天津汇铸石油设备科技有限公司 | Hydraulic anchor |
-
2011
- 2011-10-29 CN CN 201120419661 patent/CN202273622U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966321A (en) * | 2012-12-26 | 2013-03-13 | 天津汇铸石油设备科技有限公司 | Hydraulic anchor |
| CN102966321B (en) * | 2012-12-26 | 2016-09-28 | 天津汇铸石油设备科技有限公司 | Hydraulic anchor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |