CN203626671U - Inward-pushing type hanger - Google Patents
Inward-pushing type hanger Download PDFInfo
- Publication number
- CN203626671U CN203626671U CN201320806431.8U CN201320806431U CN203626671U CN 203626671 U CN203626671 U CN 203626671U CN 201320806431 U CN201320806431 U CN 201320806431U CN 203626671 U CN203626671 U CN 203626671U
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- ring
- central axis
- slips
- urceolus
- sealing
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Abstract
The utility model relates to the technical field of a hanger and concretely relates to an inward-pushing type hanger. The internal-pushing type hanger comprises a center shaft, a fixed joint, a slip block, a slip sleeve, a pushing ring, an external cylinder and a piston, wherein the fixed joint is fixedly arranged on the lower part of the center shaft; the slip sleeve is fixedly mounted on the external side of the upper part of the fixed joint; a slip installation annular cavity is formed between the slip sleeve and the center shaft; at least two groups of slip holes are distributed on the periphery of the slip sleeve; each group of slip holes comprises a slip upper radial contraction hole and a slip lower radial contraction hole from up to bottom; and the slip block is disposed in the slip installation annular cavity corresponding to the slip upper radial contraction hole and the slip lower contraction hole. The inward-pushing type hanger is rationally structured with compactness and convenient usage; the piston in an annular pressure cavity is driven to move downwardly via high pressure fluid, so the slip moves radially and extends to realize sit hanging; during a whole sit hanging process, the piston has no contact with a pipe column, so advanced sit hanging and sit hanging validation are prevented; and reliable sit hanging with high safety degree is achieved by the use of the inward-pushing type hanger.
Description
Technical field
the utility model relates to hanger technical field, is a kind of interior pushing-type hanger.
Background technology
in the cementing operation operation process of various deep-wells, ultradeep well, horizontal well, for cost saving, hanger pipe string need to be replaced to whole tubing string pipe string, as the new tool of later stage cementing operation operation; And conventional hanger is to promote slips by urceolus to sit and hang, sitting in the process of hanging, urceolus easily and wall friction, causes sitting in advance hanging or blocking with the borehole wall and makes hanger cannot sit extension and lose efficacy, poor reliability; Affect the sealing of the well of spudding in tubing string and next time, have certain potential safety hazard.
Summary of the invention
the utility model provides a kind of interior pushing-type hanger, has overcome the deficiency of above-mentioned prior art, and it can effectively solve conventional hanger, easily occurs sitting in advance hanging or sit the situation of reporting the loss effect, poor reliability; There is the problem of potential safety hazard.
the technical solution of the utility model realizes by following measures: pushing-type hanger in a kind of, comprises central axis, anchor tip, slip segment, slips sleeve, throw-out collar, urceolus and piston; Bottom at central axis is installed with anchor tip, is installed with slips sleeve in the upper outside of anchor tip, forms slips ring cavity is installed between slips sleeve and central axis; On slips sleeve, circumferentially there is the slips hole of at least two groups, every group of slips hole comprises that on top-down slips, under radial expansion hole and slips radial expansion hole, the slips corresponding with radial expansion hole under radial expansion hole and slips on slips installed in ring cavity slip segment is installed, on each slip segment, there are respectively upper slips tooth and lower slips tooth, upper slips tooth lays respectively on slips in radial expansion hole, and lower slips tooth lays respectively under slips in radial expansion hole; Have the joint projection of up-narrow and down-wide taper type in the upper end of anchor tip, the lower inside of each slip segment is up-narrow and down-wide taper type and is respectively located in joint projection; Be inversed taper platform shape wide at the top and narrow at the bottom in the inside upper part of each slip segment and also and between central axis form slips slot, in the slips sleeve of slip segment upper end, throw-out collar is installed, there is the throw-out collar lower convexity of the inversed taper platform shape that is wide at the top and narrow at the bottom the lower end of throw-out collar, and throw-out collar lower convexity is positioned at back taper slips slot; Be installed with urceolus in slips sleeve upper end, between urceolus and central axis top, form ring and press chamber; Be installed with at urceolus and central axis upper end the sealing top connection that ring can be pressed to the sealing of upper end, chamber; Have on the top of central axis and can make the inner pod apertures of pressing chamber to communicate with ring of central axis; Ring below pod apertures is pressed in chamber piston is installed; Bottom and the urceolus of piston are installed together by shear pin; The lower end of piston withstands on throw-out collar; The stopping device that can prevent piston stroking upward is installed between piston and central axis.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned stopping device can comprise retaining ring; On the central axis outer ring surface corresponding with piston bottom, have mounting groove, retaining ring is fixedly mounted in mounting groove; Be provided with outer retaining ratchet under oblique in the outside of retaining ring; Be provided with successively up and down the ratchet draw-in groove of at least three energy and retaining ratchet engagement in the inner lower of piston.
on the central axis of above-mentioned pod apertures top, can have outer groove, in outer groove, being provided with can be by two of a urceolus axial limiting semicircular spacing semi-ring I, and semicircular spacing semi-ring I is positioned at ring and presses chamber; On the urceolus of two semicircular spacing semi-ring I upper ends, have urceolus Nei Katai, urceolus is by blocking pedestal in two semicircular spacing semi-ring I in urceolus.
the downside of above-mentioned anchor tip can have external screw thread, is installed with lower contact at the downside of anchor tip by screw thread; There is interior ring platform in lower contact bottom, there is the interior ring platform breach of annular in interior ring platform inner top side, on the central axis corresponding with interior ring platform breach, there is installation annular groove, the spacing semi-ring II that can make anchor tip and spacing two of central axis be semicircle shape is installed installing in annular groove and split ring mounting groove; The base part seat of anchor tip is in two spacing semi-ring II that are semicircle shape.
can there be external screw thread the upper end of above-mentioned central axis, and sealing top connection is fixedly installed togather by screw thread and central axis, and the lower seal of sealing top connection is arranged on ring and presses in chamber; On the sealing top connection outer ring surface of urceolus upper end, have top connection wild card platform, the upper end of urceolus withstands on the lower surface of top connection wild card platform.
between the bottom of above-mentioned sealing top connection and urceolus, can be installed with sealing ring; Between internal piston upper end and central axis, be installed with sealing ring; Between piston outer upper ends and urceolus, be installed with sealing ring; Between middle part, slip segment the inner and central axis, be installed with sealing ring.
the utility model reasonable and compact in structure, easy to use; Promote ring by high-pressure fluid and press the piston in chamber to move down, slip segment is moved radially and stretch out realization seat extension; Whole seat is hung process, and piston does not contact with tubing string, effectively prevents from sitting in advance hanging or sit the situation generation of reporting the loss effect, and seat is hung reliable; Safe.
Accompanying drawing explanation
the master that accompanying drawing 1 is the utility model most preferred embodiment is depending on partly cuing open structural representation.
coding in accompanying drawing is respectively: 1 is sealing top connection, and 2 is sealing ring, and 3 is spacing semi-ring I, 4 is urceolus, and 5 is piston, and 6 is shear pin, 7 is retaining ring, and 8 is throw-out collar, and 9 is slips sleeve, 10 is slip segment, and 11 is anchor tip, and 12 is spacing semi-ring II, 13 is lower contact, axle centered by 14,15 install ring cavity for slips, and 16 is joint projection, 17 is throw-out collar lower convexity, 18 is upper slips tooth, and 19 is lower slips tooth, and 20 is ring pressure chamber, 21 is pod apertures, 22 is urceolus Nei Katai, and 23 is top connection wild card platform, and 24 is interior ring platform.
The specific embodiment
the utility model is not subject 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 is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in Figure 1, this novel interior pushing-type hanger comprises central axis 14, anchor tip 11, slip segment 10, slips sleeve 9, throw-out collar 8, urceolus 4 and piston 5; Be installed with anchor tip 11 in the bottom of central axis 14, be installed with slips sleeve 9 in the upper outside of anchor tip 11, between slips sleeve 9 and central axis 14, form slips ring cavity 15 is installed; On slips sleeve 9, circumferentially there is the slips hole of at least two groups, every group of slips hole comprises that on top-down slips, under radial expansion hole and slips radial expansion hole, the slips corresponding with radial expansion hole under radial expansion hole and slips on slips installed in ring cavity 15 slip segment 10 is installed, on each slip segment 10, there are respectively upper slips tooth 18 and lower slips tooth 19, upper slips tooth 18 lays respectively on slips in radial expansion hole, and lower slips tooth 19 lays respectively under slips in radial expansion hole; Have the joint projection 16 of up-narrow and down-wide taper type in the upper end of anchor tip 11, the lower inside of each slip segment 10 is up-narrow and down-wide taper type and is respectively located in joint projection 16; The inside upper part of each slip segment 10 be inversed taper platform shape wide at the top and narrow at the bottom and and central axis 14 between form slips slot, in the slips sleeve 9 of slip segment 10 upper ends, throw-out collar 8 is installed, there is the throw-out collar lower convexity 17 of the inversed taper platform shape that is wide at the top and narrow at the bottom the lower end of throw-out collar 8, and throw-out collar lower convexity 17 is positioned at back taper slips slot; Be installed with urceolus 4 in slips sleeve 9 upper ends, between urceolus 4 and central axis 14 tops, form ring and press chamber 20; Be installed with at urceolus 4 and central axis 14 upper ends the sealing top connection 1 that ring can be pressed to chamber 20 upper end sealings; Have on the top of central axis 14 and can make the inner pod apertures 21 of pressing chamber 20 to communicate with ring of central axis 14; Ring below pod apertures 21 is pressed in chamber 20 piston 5 is installed; The bottom of piston 5 and urceolus 4 are installed together by shear pin 6; The lower end of piston 5 withstands on throw-out collar 8; Between piston 5 and central axis 14, the stopping device that can prevent that piston 5 is up is installed.First after multilayer staged fracturing tool string connection the utility model and pitching sliding sleeve etc. being used in conjunction with, send on tubing string, down to design level position, again to the pressure of spraining of pitching in well, the high-pressure fluid of down-hole enters ring and presses in chamber 20 from pod apertures 21 through central axis 14, the pressure-acting of high-pressure fluid is on piston 5, impose on the downward thrust of piston 5, in the time that thrust reaches some strength, shear pin 6 is cut off, piston 5 moves down and promotes throw-out collar 8 extruding slip segment 10 downwards, slip segment 10 moves down and is subject to simultaneously the effect of throw-out collar lower convexity 17 and joint projection 16, upper slips tooth 18 and lower slips tooth 19 extend radially out along radial expansion hole under radial expansion hole and slips on slips respectively, make fixing realization of the utility model and sleeve lining sit extension, in this process, piston 5 moves in ring is pressed chamber 20 and carries out, and is not subject to the impact of pipe string internal wall, effectively prevents from sitting in advance extension, and easy to use, reliability is high, stopping device acts on piston 5, makes the piston 5 cannot return, sit hang firm.
can according to actual needs, above-mentioned ball seat type fracturing slide sleeve be made further optimization and/or improvements:
as shown in Figure 1, stopping device comprises retaining ring 7; On central axis 14 outer ring surfaces corresponding with piston 5 bottoms, have mounting groove, retaining ring 7 is fixedly mounted in mounting groove; Be provided with outer retaining ratchet under oblique in the outside of retaining ring 7; Be provided with successively up and down the ratchet draw-in groove of at least three energy and retaining ratchet engagement in the inner lower of piston 5.According to ratchet mechanism principle, engage with ratchet draw-in groove by retaining ratchet that to realize retaining spacing, reliability is high.
as shown in Figure 1, on the central axis 14 above pod apertures 21, have outer groove, in outer groove, being provided with can be by semicircular two of urceolus 4 axial limitings spacing semi-ring I 3, and semicircular spacing semi-ring I 3 is positioned at ring and presses chamber 20; On the urceolus 4 of two semicircular spacing semi-ring I 3 upper ends, have and in urceolus, block platform 22, urceolus 4 by 22 of card platforms in urceolus in two semicircular spacing semi-ring I 3.
as shown in Figure 1, there is external screw thread at the downside of anchor tip 11, be installed with lower contact 13 at the downside of anchor tip 11 by screw thread; There is interior ring platform 24 in the bottom of lower contact 13, there is the interior ring platform breach of annular in interior ring platform 24 inner top side, on the central axis 14 corresponding with interior ring platform breach, there is installation annular groove, the spacing semi-ring II 12 that can make spacing two of anchor tip 11 and central axis 14 be semicircle shape is installed installing in annular groove and split ring mounting groove; The base part seat of anchor tip 11 is in two spacing semi-ring II 12 that are semicircle shape.
as shown in Figure 1, have external screw thread in the upper end of central axis 14, sealing top connection 1 is fixedly installed togather by screw thread and central axis 14, and the lower seal of sealing top connection 1 is arranged on ring and presses in chamber 20; On sealing top connection 1 outer ring surface of urceolus 4 upper ends, have top connection wild card platform 23, the upper end of urceolus 4 withstands on the lower surface of top connection wild card platform 23.Between central axis 14 and sealing top connection 1, be threaded connection easy accessibility; Top connection wild card platform 23 can be convenient to mounting limit between urceolus 4 and central axis 14, easy for installation.
as shown in Figure 1, between the bottom of sealing top connection 1 and urceolus 4, be installed with sealing ring 2; Between piston 5 inner upper end and central axis 14, be installed with sealing ring 2; Between piston 5 outer upper ends and urceolus 4, be installed with sealing ring 2; Between the inner middle part of slip segment 10 and central axis 14, be installed with sealing ring 2.Sealing ring 2 plays the effect that increases sealing between contact surface.
as shown in Figure 1, the top of sealing top connection 1 is useful on the internal thread of connection; The bottom of central axis 14 is useful on the external screw thread of connection.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (10)
1. a pushing-type hanger in, is characterized in that comprising central axis, anchor tip, slip segment, slips sleeve, throw-out collar, urceolus and piston; Bottom at central axis is installed with anchor tip, is installed with slips sleeve in the upper outside of anchor tip, forms slips ring cavity is installed between slips sleeve and central axis; On slips sleeve, circumferentially there is the slips hole of at least two groups, every group of slips hole comprises that on top-down slips, under radial expansion hole and slips radial expansion hole, the slips corresponding with radial expansion hole under radial expansion hole and slips on slips installed in ring cavity slip segment is installed, on each slip segment, there are respectively upper slips tooth and lower slips tooth, upper slips tooth lays respectively on slips in radial expansion hole, and lower slips tooth lays respectively under slips in radial expansion hole; Have the joint projection of up-narrow and down-wide taper type in the upper end of anchor tip, the lower inside of each slip segment is up-narrow and down-wide taper type and is respectively located in joint projection; Be inversed taper platform shape wide at the top and narrow at the bottom in the inside upper part of each slip segment and also and between central axis form slips slot, in the slips sleeve of slip segment upper end, throw-out collar is installed, there is the throw-out collar lower convexity of the inversed taper platform shape that is wide at the top and narrow at the bottom the lower end of throw-out collar, and throw-out collar lower convexity is positioned at back taper slips slot; Be installed with urceolus in slips sleeve upper end, between urceolus and central axis top, form ring and press chamber; Be installed with at urceolus and central axis upper end the sealing top connection that ring can be pressed to the sealing of upper end, chamber; Have on the top of central axis and can make the inner pod apertures of pressing chamber to communicate with ring of central axis; Ring below pod apertures is pressed in chamber piston is installed; Bottom and the urceolus of piston are installed together by shear pin; The lower end of piston withstands on throw-out collar; The stopping device that can prevent piston stroking upward is installed between piston and central axis.
2. interior pushing-type hanger according to claim 1, is characterized in that stopping device comprises retaining ring; On the central axis outer ring surface corresponding with piston bottom, have mounting groove, retaining ring is fixedly mounted in mounting groove; Be provided with outer retaining ratchet under oblique in the outside of retaining ring; Be provided with successively up and down the ratchet draw-in groove of at least three energy and retaining ratchet engagement in the inner lower of piston.
3. interior pushing-type hanger according to claim 1 and 2, it is characterized in that there is outer groove on the central axis of pod apertures top, in outer groove, being provided with can be by two of a urceolus axial limiting semicircular spacing semi-ring I, and semicircular spacing semi-ring I is positioned at ring and presses chamber; On the urceolus of two semicircular spacing semi-ring I upper ends, have urceolus Nei Katai, urceolus is by blocking pedestal in two semicircular spacing semi-ring I in urceolus.
4. interior pushing-type hanger according to claim 1 and 2, is characterized in that the downside of anchor tip has external screw thread, is installed with lower contact at the downside of anchor tip by screw thread; There is interior ring platform in lower contact bottom, there is the interior ring platform breach of annular in interior ring platform inner top side, on the central axis corresponding with interior ring platform breach, there is installation annular groove, the spacing semi-ring II that can make anchor tip and spacing two of central axis be semicircle shape is installed installing in annular groove and split ring mounting groove; The base part seat of anchor tip is in two spacing semi-ring II that are semicircle shape.
5. interior pushing-type hanger according to claim 3, is characterized in that the downside of anchor tip has external screw thread, is installed with lower contact at the downside of anchor tip by screw thread; There is interior ring platform in lower contact bottom, there is the interior ring platform breach of annular in interior ring platform inner top side, on the central axis corresponding with interior ring platform breach, there is installation annular groove, the spacing semi-ring II that can make anchor tip and spacing two of central axis be semicircle shape is installed installing in annular groove and split ring mounting groove; The base part seat of anchor tip is in two spacing semi-ring II that are semicircle shape.
6. interior pushing-type hanger according to claim 1 and 2, is characterized in that there is external screw thread the upper end of central axis, and sealing top connection is fixedly installed togather by screw thread and central axis, and the lower seal of sealing top connection is arranged on ring and presses in chamber; On the sealing top connection outer ring surface of urceolus upper end, have top connection wild card platform, the upper end of urceolus withstands on the lower surface of top connection wild card platform.
7. interior pushing-type hanger according to claim 3, is characterized in that there is external screw thread the upper end of central axis, and sealing top connection is fixedly installed togather by screw thread and central axis, and the lower seal of sealing top connection is arranged on ring and presses in chamber; On the sealing top connection outer ring surface of urceolus upper end, have top connection wild card platform, the upper end of urceolus withstands on the lower surface of top connection wild card platform.
8. interior pushing-type hanger according to claim 5, is characterized in that there is external screw thread the upper end of central axis, and sealing top connection is fixedly installed togather by screw thread and central axis, and the lower seal of sealing top connection is arranged on ring and presses in chamber; On the sealing top connection outer ring surface of urceolus upper end, have top connection wild card platform, the upper end of urceolus withstands on the lower surface of top connection wild card platform.
9. interior pushing-type hanger according to claim 1 and 2, is characterized in that sealing between the bottom of top connection and urceolus and is installed with sealing ring; Between internal piston upper end and central axis, be installed with sealing ring; Between piston outer upper ends and urceolus, be installed with sealing ring; Between middle part, slip segment the inner and central axis, be installed with sealing ring.
10. interior pushing-type hanger according to claim 8, is characterized in that sealing between the bottom of top connection and urceolus and is installed with sealing ring; Between internal piston upper end and central axis, be installed with sealing ring; Between piston outer upper ends and urceolus, be installed with sealing ring; Between middle part, slip segment the inner and central axis, be installed with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806431.8U CN203626671U (en) | 2013-12-10 | 2013-12-10 | Inward-pushing type hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806431.8U CN203626671U (en) | 2013-12-10 | 2013-12-10 | Inward-pushing type hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626671U true CN203626671U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806431.8U Withdrawn - After Issue CN203626671U (en) | 2013-12-10 | 2013-12-10 | Inward-pushing type hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626671U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628835A (en) * | 2013-12-10 | 2014-03-12 | 中国石油集团西部钻探工程有限公司 | Internally pushed hanger |
| CN106285553A (en) * | 2015-05-15 | 2017-01-04 | 天津统晟石油科技有限公司 | A kind of extension hanger |
| CN106761506A (en) * | 2017-03-27 | 2017-05-31 | 中国石油大学(北京) | Boll-weevil hanger promptly reclaims instrument |
| CN107939326A (en) * | 2016-10-13 | 2018-04-20 | 中国石油化工股份有限公司 | Tubing string |
-
2013
- 2013-12-10 CN CN201320806431.8U patent/CN203626671U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628835A (en) * | 2013-12-10 | 2014-03-12 | 中国石油集团西部钻探工程有限公司 | Internally pushed hanger |
| CN103628835B (en) * | 2013-12-10 | 2016-06-29 | 中国石油集团西部钻探工程有限公司 | Interior pushing-type hanger |
| CN106285553A (en) * | 2015-05-15 | 2017-01-04 | 天津统晟石油科技有限公司 | A kind of extension hanger |
| CN106285553B (en) * | 2015-05-15 | 2019-01-29 | 中国地质大学（北京） | A kind of extension hanger |
| CN107939326A (en) * | 2016-10-13 | 2018-04-20 | 中国石油化工股份有限公司 | Tubing string |
| CN107939326B (en) * | 2016-10-13 | 2020-07-03 | 中国石油化工股份有限公司 | Pipe column |
| CN106761506A (en) * | 2017-03-27 | 2017-05-31 | 中国石油大学(北京) | Boll-weevil hanger promptly reclaims instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |