CN103628835B - Interior pushing-type hanger - Google Patents
Interior pushing-type hanger Download PDFInfo
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- CN103628835B CN103628835B CN201310663813.4A CN201310663813A CN103628835B CN 103628835 B CN103628835 B CN 103628835B CN 201310663813 A CN201310663813 A CN 201310663813A CN 103628835 B CN103628835 B CN 103628835B
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- slips
- central shaft
- urceolus
- ring
- piston
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Abstract
<b>the present invention relates to hanger technical field, be pushing-type hanger in one；It includes central shaft, anchor tip, slip segment, slips sleeve, throw-out collar, urceolus and piston；Being installed with anchor tip in the bottom of central shaft, the upper outside at anchor tip is installed with slips sleeve, forms slips and install ring cavity between slips sleeve and central shaft；Slips sleeve circumferentially has the slips hole of at least two groups, often group slips hole includes on top-down slips that under radial expansion hole and slips radial expansion hole, installs in ring cavity with radial expansion hole on slips and slips that under slips, radial expansion hole is corresponding and is provided with slip segment.Present configuration is reasonable and compact, easy to use；The piston being promoted ring pressure intracavity by high-pressure fluid is moved down, and makes slip segment move radially and stretches out realization seat extension；Whole seat extension process, piston does not contact with tubing string, effectively prevents from sitting in advance and hangs or sit the situation generation reporting the loss effect, and seat is hung reliable；Safety is high.</b>
Description
Technical field
The present invention relates to hanger technical field, be pushing-type hanger in one.
Background technology
Various deep-wells, ultradeep well, horizontal well cementing operation operation process in, for the expense of saving, it is necessary to will hang organ pipe string replace whole tubing string pipe string, as the new tool of later stage cementing operation operation；And the hanger of routine is to promote slips to sit by urceolus to hang, in sitting the process hung, 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 tubing string and well of spudding in next time, there is certain potential safety hazard.
Summary of the invention
The invention provides pushing-type hanger in one, overcome the deficiency of above-mentioned prior art, it can effectively solve the hanger of routine, it is easy to occurs sitting in advance and hangs or sit the situation reporting the loss effect, poor reliability；The problem that there is potential safety hazard.
The technical scheme is that and realized by following measures: pushing-type hanger in a kind of, including central shaft, anchor tip, slip segment, slips sleeve, throw-out collar, urceolus and piston；Being installed with anchor tip in the bottom of central shaft, the upper outside at anchor tip is installed with slips sleeve, forms slips and install ring cavity between slips sleeve and central shaft；Slips sleeve circumferentially has the slips hole of at least two groups, often group slips hole includes on top-down slips that under radial expansion hole and slips radial expansion hole, install in ring cavity with radial expansion hole on slips and slips that under slips, radial expansion hole is corresponding and slip segment is installed, each slip segment has upper slips tooth and lower slips tooth respectively, upper slips tooth lays respectively on slips in radial expansion hole, and lower slips tooth lays respectively under slips in radial expansion hole；The joint having up-narrow and down-wide taper type in the upper end of anchor tip is protruding, and the lower inside of each slip segment is up-narrow and down-wide taper type and is respectively located in joint projection；The inversed taper platform shape that inside upper part at each slip segment is wide at the top and narrow at the bottom also and forms slips slot between central shaft, in the slips sleeve of slip segment upper end, throw-out collar is installed, there is the throw-out collar lower convexity in inversed taper platform shape 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 inverted cone slips slot；It is installed with urceolus in slips sleeve upper end, between urceolus and central shaft top, forms ring pressure chamber；The sealing top connection that ring can be pressed upper end, chamber seal it is installed with at urceolus and central shaft upper end；Have on the top of central shaft and can make the internal pod apertures pressing chamber to communicate with ring of central shaft；Ring pressure intracavity below pod apertures is provided with piston；The bottom of piston and urceolus 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 shaft.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
Above-mentioned stopping device can include retaining ring；Having mounting groove on the central shaft outer ring surface corresponding with piston lower portion, retaining ring is fixedly mounted in mounting groove；It is provided externally with outer retaining ratchet obliquely at retaining ring；Inner lower at piston is sequentially provided with at least three up and down can with the ratchet draw-in groove of retaining ratchet engagement.
Can having outer groove on central shaft above above-mentioned pod apertures, being provided with in outer groove can by semicircular for the two of urceolus axial limiting spacing semi-ring I, and semicircular spacing semi-ring I is positioned at ring pressure intracavity；The urceolus of two semicircular spacing semi-ring I upper ends has chuck in urceolus, urceolus by card pedestal in urceolus on two semicircular spacing semi-rings I.
Can there be external screw thread the downside of above-mentioned anchor tip, is threadably secured in the downside of anchor tip and is provided with lower contact；Interior land is had in lower contact bottom, the interior land breach of annular is had in interior land inner top side, the central shaft corresponding with interior land breach there is installation annular groove, installing, two spacing semi-rings II in semicircle shape that anchor tip and central shaft can be made spacing is installed in annular groove and split ring mounting groove；The base part seat of anchor tip is on two spacing semi-rings II in semicircle shape.
Can there be external screw thread the upper end of above-mentioned central shaft, seals top connection and is fixedly installed togather by screw thread and central shaft, and the lower seal sealing top connection is arranged on ring pressure intracavity；Having the outer chuck of top connection on the sealing top connection outer ring surface of urceolus upper end, the upper end of urceolus withstands on the lower surface of the outer chuck of top connection.
Sealing ring can be installed with between bottom and the urceolus of above-mentioned sealing top connection；It is installed with sealing ring between internal piston upper end and central shaft；It is installed with sealing ring between piston exterior upper end and urceolus；It is installed with sealing ring in the middle part of slip segment the inner and between central shaft.
Present configuration is reasonable and compact, easy to use；The piston being promoted ring pressure intracavity by high-pressure fluid is moved down, and makes slip segment move radially and stretches out realization seat extension；Whole seat extension process, piston does not contact with tubing string, effectively prevents from sitting in advance and hangs or sit the situation generation reporting the loss effect, and seat is hung reliable；Safety is high.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of preferred embodiment is depending on partly cuing open structural representation.
Coding in accompanying drawing is respectively as follows: 1 for 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 that joint is protruding, 17 is throw-out collar lower convexity, 18 is upper slips tooth, and 19 is lower slips tooth, and 20 press chamber for ring, 21 is pod apertures, 22 is chuck in urceolus, and 23 is the outer chuck of top connection, and 24 is interior land.
Detailed description of the invention
The present invention, not by the restriction of following embodiment, can determine specific embodiment according to technical scheme and practical situation.
In the present invention, for the ease of describing, the Butut mode that the description of the relative position relation of each parts is all according to Figure of description 1 is described, as: the position relationship of upper and lower, left and right etc. is based on what the Butut direction of Figure of description 1 was determined.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
As shown in Figure 1, this novel interior pushing-type hanger includes central shaft 14, anchor tip 11, slip segment 10, slips sleeve 9, throw-out collar 8, urceolus 4 and piston 5；Being installed with anchor tip 11 in the bottom of central shaft 14, the upper outside at anchor tip 11 is installed with slips sleeve 9, forms slips and install ring cavity 15 between slips sleeve 9 and central shaft 14；Slips sleeve 9 circumferentially has the slips hole of at least two groups, often group slips hole includes on top-down slips that under radial expansion hole and slips radial expansion hole, install in ring cavity 15 with radial expansion hole on slips and slips that under slips, radial expansion hole is corresponding and slip segment 10 is installed, each slip segment 10 has upper slips tooth 18 and lower slips tooth 19 respectively, 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 inversed taper platform shape that inside upper part at each slip segment 10 is wide at the top and narrow at the bottom also and forms slips slot between central shaft 14, in the slips sleeve 9 of slip segment 10 upper end, throw-out collar 8 is installed, there is the throw-out collar lower convexity 17 in inversed taper platform shape 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 inverted cone slips slot；It is installed with urceolus 4 in slips sleeve 9 upper end, between urceolus 4 and central shaft 14 top, forms ring pressure chamber 20；The sealing top connection 1 that ring can be pressed upper end, chamber 20 seal it is installed with at urceolus 4 and central shaft 14 upper end；Have on the top of central shaft 14 and can make the internal pod apertures 21 pressing chamber 20 to communicate with ring of central shaft 14；In ring pressure chamber 20 below pod apertures 21, piston 5 is installed；The bottom of piston 5 is installed together by shear pin 6 with urceolus 4；The lower end of piston 5 withstands on throw-out collar 8；The stopping device that piston 5 can be prevented up is installed between piston 5 and central shaft 14.First by the present invention and pitching sliding sleeve etc. with the use of multilamellar staged fracturing tool string connection after send on tubing string, down to design level position；Sprain pressure to pitching in well again, the high-pressure fluid of down-hole enters in ring pressure chamber 20 through central shaft 14 from pod apertures 21, the pressure of high-pressure fluid acts on piston 5, it is applied to the thrust that piston 5 is downward, when thrust reaches some strength, shear pin 6 is cut off, piston 5 moves down and promotes throw-out collar 8 to be pressed down against slip segment 10, slip segment 10 moves down and simultaneously by the effect of throw-out collar lower convexity 17 and joint projection 16, upper slips tooth 18 and lower slips tooth 19 respectively along slips under radial expansion hole and slips radial expansion hole extend radially out, make the present invention and sleeve lining fixing realize sitting hang；In the process, piston 5 moves to press in chamber 20 at ring and carries out, and not by the impact of pipe string internal wall, effectively prevents from sitting extension in advance, and easy to use, reliability is high；Stopping device acts on piston 5, make piston 5 cannot return, sit hang firm.
According to actual needs, above-mentioned ball seat type fracturing slide sleeve can be made further optimization and/or improvements:
As shown in Figure 1, stopping device includes retaining ring 7；Having mounting groove on central shaft 14 outer ring surface corresponding with piston 5 bottom, retaining ring 7 is fixedly mounted in mounting groove；It is provided externally with outer retaining ratchet obliquely at retaining ring 7；Inner lower at piston 5 is sequentially provided with at least three up and down can with the ratchet draw-in groove of retaining ratchet engagement.According to ratchet mechanism principle, being engaged with ratchet draw-in groove by retaining ratchet that to realize retaining spacing, reliability is high.
As shown in Figure 1, the central shaft 14 above pod apertures 21 having outer groove, being provided with in outer groove can by semicircular for two of urceolus 4 axial limiting spacing semi-ring I 3, and semicircular spacing semi-ring I 3 is positioned at ring pressure chamber 20；The urceolus 4 of two semicircular spacing semi-ring I 3 upper ends has chuck 22 in urceolus, urceolus 4 by chuck 22 in urceolus on two semicircular spacing semi-rings I 3.
As shown in Figure 1, there is external screw thread in the downside of anchor tip 11, be threadably secured in the downside of anchor tip 11 and lower contact 13 is installed；Interior land 24 is had in the bottom of lower contact 13, the interior land breach of annular is had in interior land 24 inner top side, the central shaft 14 corresponding with interior land breach there is installation annular groove, installing, two spacing semi-rings II 12 in semicircle shape that anchor tip 11 and central shaft 14 can be made spacing is installed in annular groove and split ring mounting groove；The base part seat of anchor tip 11 is on two spacing semi-rings II 12 in semicircle shape.
As shown in Figure 1, having external screw thread in the upper end of central shaft 14, seal top connection 1 and be fixedly installed togather by screw thread and central shaft 14, the lower seal sealing top connection 1 is arranged in ring pressure chamber 20；Having the outer chuck 23 of top connection on sealing top connection 1 outer ring surface of urceolus 4 upper end, the upper end of urceolus 4 withstands on the lower surface of the outer chuck 23 of top connection.It is threaded connection between central shaft 14 and sealing top connection 1, easy accessibility；The outer chuck 23 of top connection can be easy to install between urceolus 4 and central shaft 14 spacing, easy for installation.
As shown in Figure 1, seal and be installed with sealing ring 2 between bottom and the urceolus 4 of top connection 1；Sealing ring 2 it is installed with between piston 5 inner upper end and central shaft 14；Sealing ring 2 it is installed with between piston 5 outer upper ends and urceolus 4；It is installed with sealing ring 2 between the inner middle part of slip segment 10 and central shaft 14.Sealing ring 2 plays increases the effect of sealing between contact surface.
As shown in Figure 1, the female thread for connecting is arranged at the top sealing top connection 1；External screw thread for connecting is arranged at the bottom of central shaft 14.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. pushing-type hanger in a kind, it is characterised in that include central shaft, anchor tip, slip segment, slips sleeve, throw-out collar, urceolus and piston；Being installed with anchor tip in the bottom of central shaft, the upper outside at anchor tip is installed with slips sleeve, forms slips and install ring cavity between slips sleeve and central shaft；Slips sleeve circumferentially has the slips hole of at least two groups, often group slips hole includes on top-down slips that under radial expansion hole and slips radial expansion hole, install in ring cavity with radial expansion hole on slips and slips that under slips, radial expansion hole is corresponding and slip segment is installed, each slip segment has upper slips tooth and lower slips tooth respectively, upper slips tooth lays respectively on slips in radial expansion hole, and lower slips tooth lays respectively under slips in radial expansion hole；The joint having up-narrow and down-wide taper type in the upper end of anchor tip is protruding, and the lower inside of each slip segment is up-narrow and down-wide taper type and is respectively located in joint projection；The inversed taper platform shape that inside upper part at each slip segment is wide at the top and narrow at the bottom also and forms slips slot between central shaft, in the slips sleeve of slip segment upper end, throw-out collar is installed, there is the throw-out collar lower convexity in inversed taper platform shape 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 inversed taper platform shape slips slot；It is installed with urceolus in slips sleeve upper end, between urceolus and central shaft top, forms ring pressure chamber；The sealing top connection that ring can be pressed upper end, chamber seal it is installed with at urceolus and central shaft upper end；Have on the top of central shaft and can make the internal pod apertures pressing chamber to communicate with ring of central shaft；Ring pressure intracavity below pod apertures is provided with piston；The bottom of piston and urceolus 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 shaft.
2. interior pushing-type hanger according to claim 1, it is characterised in that stopping device includes retaining ring；Having mounting groove on the central shaft outer ring surface corresponding with piston lower portion, retaining ring is fixedly mounted in mounting groove；It is provided externally with outer retaining ratchet obliquely at retaining ring；Inner lower at piston is sequentially provided with at least three up and down can with the ratchet draw-in groove of retaining ratchet engagement.
3. interior pushing-type hanger according to claim 1 and 2, it is characterized in that the central shaft above pod apertures has outer groove, being provided with in outer groove can by semicircular for the two of urceolus axial limiting spacing semi-ring I, and semicircular spacing semi-ring I is positioned at ring pressure intracavity；The urceolus of two semicircular spacing semi-ring I upper ends has chuck in urceolus, urceolus by card pedestal in urceolus on two semicircular spacing semi-rings I.
4. interior pushing-type hanger according to claim 1 and 2, it is characterised in that there is screw thread the downside of anchor tip, is threadably secured in the downside of anchor tip and is provided with lower contact；Interior land is had in lower contact bottom, the interior land breach of annular is had in interior land inner top side, the central shaft corresponding with interior land breach there is installation annular groove, installing, two spacing semi-rings II in semicircle shape that anchor tip and central shaft can be made spacing is installed in annular groove and interior land breach；The base part seat of anchor tip is on two spacing semi-rings II in semicircle shape.
5. interior pushing-type hanger according to claim 3, it is characterised in that there is screw thread the downside of anchor tip, is threadably secured in the downside of anchor tip and is provided with lower contact；Interior land is had in lower contact bottom, the interior land breach of annular is had in interior land inner top side, the central shaft corresponding with interior land breach there is installation annular groove, installing, two spacing semi-rings II in semicircle shape that anchor tip and central shaft can be made spacing is installed in annular groove and interior land breach；The base part seat of anchor tip is on two spacing semi-rings II in semicircle shape.
6. interior pushing-type hanger according to claim 1 and 2, it is characterised in that there is screw thread the upper end of central shaft, is sealed top connection and is fixedly installed togather by screw thread and central shaft, and the lower seal sealing top connection is arranged on ring pressure intracavity；Having the outer chuck of top connection on the sealing top connection outer ring surface of urceolus upper end, the upper end of urceolus withstands on the lower surface of the outer chuck of top connection.
7. interior pushing-type hanger according to claim 3, it is characterised in that there is screw thread the upper end of central shaft, is sealed top connection and is fixedly installed togather by screw thread and central shaft, and the lower seal sealing top connection is arranged on ring pressure intracavity；Having the outer chuck of top connection on the sealing top connection outer ring surface of urceolus upper end, the upper end of urceolus withstands on the lower surface of the outer chuck of top connection.
8. interior pushing-type hanger according to claim 5, it is characterised in that there is screw thread the upper end of central shaft, is sealed top connection and is fixedly installed togather by screw thread and central shaft, and the lower seal sealing top connection is arranged on ring pressure intracavity；Having the outer chuck of top connection on the sealing top connection outer ring surface of urceolus upper end, the upper end of urceolus withstands on the lower surface of the outer chuck of top connection.
9. interior pushing-type hanger according to claim 1 and 2, it is characterised in that seal and be installed with sealing ring between bottom and the urceolus of top connection；It is installed with sealing ring between internal piston upper end and central shaft；It is installed with sealing ring between piston exterior upper end and urceolus；It is installed with sealing ring in the middle part of slip segment the inner and between central shaft.
10. interior pushing-type hanger according to claim 8, it is characterised in that seal and be installed with sealing ring between bottom and the urceolus of top connection；It is installed with sealing ring between internal piston upper end and central shaft；It is installed with sealing ring between piston exterior upper end and urceolus；It is installed with sealing ring in the middle part of slip segment the inner and between central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663813.4A CN103628835B (en) | 2013-12-10 | 2013-12-10 | Interior pushing-type hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663813.4A CN103628835B (en) | 2013-12-10 | 2013-12-10 | Interior pushing-type hanger |
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| Publication Number | Publication Date |
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| CN103628835A CN103628835A (en) | 2014-03-12 |
| CN103628835B true CN103628835B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310663813.4A Active CN103628835B (en) | 2013-12-10 | 2013-12-10 | Interior pushing-type hanger |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649568B (en) * | 2016-03-14 | 2018-03-27 | 中国石油集团西部钻探工程有限公司 | Hydraulic releasing well mouth hanger and blowing favourable turn adopt integral component |
| CN108729880A (en) * | 2018-04-17 | 2018-11-02 | 中国石油天然气股份有限公司 | A kind of novel rod-type righting wax scraping apparatus |
| CN108979576B (en) * | 2018-07-20 | 2020-02-21 | 中国石油大学(北京) | Permanent liner hanger |
| CN110410026B (en) * | 2019-08-12 | 2021-07-13 | 西华大学 | Open hole window-opening slope guide suspension tool for air drilling |
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| US5086845A (en) * | 1990-06-29 | 1992-02-11 | Baker Hughes Incorporated | Liner hanger assembly |
| WO2008130815A1 (en) * | 2007-04-18 | 2008-10-30 | Baker Hughes Incorporated | Casing coupler liner hanger mechanism |
| CN201202423Y (en) * | 2008-04-04 | 2009-03-04 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Multifunctional hanging device |
| CN201420517Y (en) * | 2009-03-27 | 2010-03-10 | 徐红军 | Liner hanger |
| CN202673211U (en) * | 2011-12-01 | 2013-01-16 | 阜新市石油工具厂 | Tie-back inserting sealing tail pipe hanger |
| CN203626671U (en) * | 2013-12-10 | 2014-06-04 | 中国石油集团西部钻探工程有限公司 | Inward-pushing type hanger |
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2013
- 2013-12-10 CN CN201310663813.4A patent/CN103628835B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5086845A (en) * | 1990-06-29 | 1992-02-11 | Baker Hughes Incorporated | Liner hanger assembly |
| WO2008130815A1 (en) * | 2007-04-18 | 2008-10-30 | Baker Hughes Incorporated | Casing coupler liner hanger mechanism |
| CN201202423Y (en) * | 2008-04-04 | 2009-03-04 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Multifunctional hanging device |
| CN201420517Y (en) * | 2009-03-27 | 2010-03-10 | 徐红军 | Liner hanger |
| CN202673211U (en) * | 2011-12-01 | 2013-01-16 | 阜新市石油工具厂 | Tie-back inserting sealing tail pipe hanger |
| CN203626671U (en) * | 2013-12-10 | 2014-06-04 | 中国石油集团西部钻探工程有限公司 | Inward-pushing type hanger |
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Effective date of registration: 20201109 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Research Institute, No. 68, South Central Road, Urumqi, the Xinjiang Uygur Autonomous Region Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |