CN105937382A - Hydraulic bidirectional slip type hanger - Google Patents
Hydraulic bidirectional slip type hanger Download PDFInfo
- Publication number
- CN105937382A CN105937382A CN201610437016.8A CN201610437016A CN105937382A CN 105937382 A CN105937382 A CN 105937382A CN 201610437016 A CN201610437016 A CN 201610437016A CN 105937382 A CN105937382 A CN 105937382A
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- China
- Prior art keywords
- inner tube
- cone
- cutting ferrule
- slip
- pin
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 31
- 238000010008 shearing Methods 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 abstract description 4
- 241000282472 Canis lupus familiaris Species 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 7
- 210000002445 nipple Anatomy 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 210000000664 rectum Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a hydraulic bidirectional slip hanger, which comprises: the inner wall of the inner pipe is provided with a clamping groove, an outer pipe, a rubber cylinder, an upper cone, a bidirectional slip and a lower cone are sequentially sleeved outside the inner pipe from top to bottom, the upper cone is connected with the upper end of the bidirectional slip through a first setting pin, the upper end of the lower cone is connected with the lower end of the bidirectional slip through a second setting pin, and the lower end of the lower cone is connected with a lower connector; the central tube, it is located the inside of inner tube, the upper end of central tube with be equipped with sealed stifled between the outer tube, the lower extreme of central tube links to each other with the subassembly of giving up, the outside ability card of subassembly of giving up is located the draw-in groove of inner tube, be equipped with the pneumatic cylinder between central tube and the outer tube, the outside card of pneumatic cylinder is located the outer tube, be equipped with the trompil on the central tube, the trompil is located sealed stifled and the pneumatic cylinder between. The invention can realize graded setting and bidirectional anchoring, and has strong anchoring force and reliable sealing.
Description
Technical field
The present invention relates to oil-gas field downhole operation technical field, specifically refer to a kind of hanger, particularly a kind of big orifice
The hydraulic bidirectional slip-type hanger unsealed.
Background technology
At present, in oil-gas field downhole operation technical field, the kind of hanger is more, Y445 type hanger therein
Can the completion tubular column such as unidirectional suspension screen casing, tail pipe, it is also possible to Bidirectional suspension, Application comparison is extensive.
But, existing Y445 type hanger structure is complicated, and interior latus rectum is less (loses in interior latus rectum namely hanger
The tubing string internal diameter started working after hands), the size of interior latus rectum is respectively less than 120 millimeters (mm), and limit follow-up
The string size entered under in hanger and the scope of application, and, the slips of existing Y445 type hanger is arranged not
Rationally, suspension force two-way after causing slips to set is inadequate, sets insecure, furthermore, most bi-directional slip hangs
Hanging device can not realize deblocking conveniently and efficiently, can not salvage, and limited the application model of hanger after tubing string loses efficacy
Enclose.
Because the problem that above-mentioned prior art exists, the present inventor combines the design for many years of relevant manufacture field and use
Experience, it is provided that the hydraulic bidirectional slip-type hanger unsealed of a kind of big orifice, overcomes drawbacks described above.
Summary of the invention
It is an object of the invention to provide a kind of hydraulic bidirectional slip-type hanger, it can realize classification and set and two-way anchor
Fixed, anchorage force is strong, seals reliable.
The above-mentioned purpose of the present invention can use following technical proposal to realize:
The present invention provides a kind of hydraulic bidirectional slip-type hanger, comprising: inner tube, its inwall is provided with draw-in groove, described
The outside of inner tube is arranged with outer tube, packing element, upper cone, bi-directional slip and lower cone, described epicone the most successively
Body sets pin with the upper end of described bi-directional slip by first and is connected, the upper end of described lower cone and described bi-directional slip
Lower end set pin by second and be connected, the lower end of described lower cone connects lower contact；Central canal, it is positioned at described
The inside of inner tube, is provided with seal plug between upper end and the described outer tube of described central canal, the lower end of described central canal with lose
Hands assembly is connected, described in the give up outside of assembly can be arranged in the draw-in groove of said inner tube, described central canal and described outer tube
Between be provided with hydraulic cylinder, the outside of described hydraulic cylinder is arranged in described outer tube, and described central canal is provided with perforate, described
Perforate is between described seal plug and described hydraulic cylinder.
In a preferred embodiment, the described second specified shearing force setting pin sets pin less than described first
Specified shearing force.
In a preferred embodiment, assembly of giving up described in include base and sliding sleeve, described base be positioned at described sliding sleeve with
Between said inner tube, the upper end of described base is connected with described central canal, and described sliding sleeve and described base are by pin of giving up
Nail is connected, and described base is provided with the lock dog that can move radially, and described lock dog can be arranged in described draw-in groove.
In a preferred embodiment, being provided with tail and block up and cone between described base and described sliding sleeve, described tail blocks up and institute
The lower end stating sliding sleeve is connected, and described cone is positioned at the top that described tail is stifled, and described cone abuts against with described lock dog.
In a preferred embodiment, the outer wall of said inner tube is provided with the outer buckle of zigzag, and the inwall of described outer tube is provided with
Buckle in zigzag, is cut off at described pin of giving up and makes the described lock dog described draw-in groove of disengaging realize the state given up
Under, described outer tube axially moves down relative to said inner tube, and described outer buckle is mutually locked with described interior buckle.
In a preferred embodiment, the inner side of described lower cone is provided with interior cutting ferrule, and described interior cutting ferrule is positioned at said inner tube
Lower section, described lower cone and described interior cutting ferrule are connected by deblocking pin.
In a preferred embodiment, described lower cone is provided with inverted L-shaped section, sets between said inner tube and described section
Having outer cutting ferrule, the upper end of described outer cutting ferrule to be connected with said inner tube, the lower end of described outer cutting ferrule is by described deblocking pin
It is folded between described lower cone and described interior cutting ferrule.
In a preferred embodiment, the internal diameter of said inner tube is between 124mm to 126mm.
Feature and the advantage of hydraulic bidirectional slip-type hanger of the present invention be:
Hydraulic bidirectional slip-type hanger of the present invention, by First offset nail by the upper slips of bi-directional slip and upper cone
Be connected, the second setting pin is connected with the lower slips of bi-directional slip, and the specified shearing force of the second setting pin is less than the
The specified shearing force of one setting pin, fixes with bi-directional slip with the setting pin by the specified shearing force of different size,
The classification realizing bi-directional slip is setting, bidirectionally anchoring, and anchorage force is strong, setting reliable and stable；By below central canal
Connect assembly of giving up, and assembly of giving up can be connected in the draw-in groove of inner tube actively, make hydraulic bidirectional slip-type hang
Device is suppressed by liquid and can be realized giving up, it is to avoid back-off is given up the problem easily lost not open, and gives up convenient and reliable；?
The lower section of inner tube arranges the female interior cutting ferrule of tool, interior cutting ferrule, outer cutting ferrule and lower cone is connected by deblocking pin,
Enter Special fishing tool under by and can realize deblocking, simple operation.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the structural representation of the hydraulic bidirectional slip-type hanger of the present invention；
Fig. 2 is the close-up schematic view at the assembly of giving up in Fig. 1；
Fig. 3 is the close-up schematic view of the lower cone in Fig. 1 and interior cutting ferrule junction.
Drawing reference numeral illustrates:
1 top connection, 2 tubing nipples, 3 anti-rotation pins, 4 plugs, 5 seal plugs, 6 hydraulic cylinders, 7 outer tubes, 8
Central canal, 9 sliding sleeves, 10 bases, 11 lock dogs, 12 cones, 13 tails block up, and 14 give up pin, 15 packing elements, and 16
Upper cone, 17 first set pin, 18 bi-directional slips, 19 inner tubes, and 20 second set pin, 21 lower cones,
22 outer cutting ferrules, 23 deblocking pins, cutting ferrule in 24,25 lower contacts, 26 hydraulic chamber, 27 perforates, buckle in 28,
29 outer buckles, 30 steel balls, 31 draw-in grooves, 32 sections, D1 distance, D2 distance.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of protection of the invention.
As shown in Figure 1 to Figure 3, the present invention provides a kind of hydraulic bidirectional slip-type hanger, comprising: inner tube 19,
Its inwall is provided with draw-in groove 31, and the outside of said inner tube 19 is arranged with outer tube 7, packing element 15, epicone the most successively
Body 16, bi-directional slip 18 and lower cone 21, described upper cone 16 passes through first with the upper end of described bi-directional slip 18
Setting pin 17 to be connected, the upper end of described lower cone 21 sets pin with the lower end of described bi-directional slip 18 by second
Nail 20 is connected, and the lower end of described lower cone 21 connects lower contact 25；Central canal 8, it is positioned at said inner tube 19
Inside, is provided with seal plug 5 between upper end and the described outer tube 7 of described central canal 8, the lower end of described central canal 8 with
Assembly of giving up is connected, described in the give up outside of assembly can be arranged in the draw-in groove 31 of said inner tube 19, described central canal 8
And being provided with hydraulic cylinder 6 between described outer tube 7, the outside of described hydraulic cylinder 6 is arranged in described outer tube 7, described center
Pipe 8 is provided with perforate 27, and described perforate 27 is between described seal plug 5 and described hydraulic cylinder 6.
Concrete, the hydraulic bidirectional slip-type hanger of the present invention has big orifice, and i.e. the internal diameter of said inner tube 19 is relatively
In prior art, the internal diameter of the inner tube of hanger is big, it is also preferred that the left the internal diameter of said inner tube 19 is 124mm to 126mm
Between, the external diameter of outer tube 7 is 152mm, facilitates follow-up running string in hanger, expands the model of its application
Enclose, and the inner tube 19 of big orifice also has higher intensity so that it is the scope of application is wider.
Further, the upper end of central canal 8 is provided with tubing nipple 2, and the threaded upper ends of tubing nipple 2 connects top connection
1, top connection 1 is connected with running string, and the lower end of tubing nipple 2 is connected with the inner thread of the upper end of seal plug 5,
The inwall of the lower end of seal plug 5 is connected with the outer wall thread of the upper end of central canal 8, and tubing nipple 2 is arranged with plug
4, and by anti-rotation pin 3, the upper end of plug 4 is connected with tubing nipple 2, in case spline is moved, plug 4 is substantially
In up-small and down-big horn shape, make the external diameter of lower end of plug 4 more than or equal to the external diameter of outer tube 7, with resist in
The upper end of outer tube 7, prevents outer tube 7 up；Seal plug 5 and hydraulic cylinder 6 are respectively positioned between outer tube 7 and central canal 8,
And hydraulic cylinder 6 is positioned at the lower section of seal plug 5, make to enclose between seal plug 5, hydraulic cylinder 6, outer tube 7 and central canal 8
If forming hydraulic chamber 26, this hydraulic chamber 26 is connected with described perforate 27, to realize in hydraulic chamber 26
Inject fluid under pressure, promote hydraulic cylinder 6 descending, it is also preferred that the left between seal plug 5 and outer tube 7, hydraulic cylinder 6 is with outer
Between pipe 7, between hydraulic cylinder 6 and central canal 8, it is equipped with sealing ring, to ensure the sealing of hydraulic chamber 26.
Further, the described second specified shearing force setting pin 20 sets the specified of pin 17 less than described first
Shearing force (specified shearing force is the maximum shear stress that can bear), makes in setting procedure, the lower card of bi-directional slip 18
Watt first strut grappling, then strut grappling upper slips, it is achieved classification is setting, reliable and stable, and suspension force is bigger, it is to avoid on
The grappling of slips elder generation and make lower slips grappling or the acarpous phenomenon of grappling to occur.
Further, as depicted in figs. 1 and 2, assembly of giving up described in includes base 10 and sliding sleeve 9, described base
10 between described sliding sleeve 9 and said inner tube 19, and the upper end of described base 10 is connected with described central canal 8,
Described sliding sleeve 9 is connected by pin 14 of giving up with described base 10, and described base 10 is provided with and can move radially
Lock dog 11, described lock dog 11 can be arranged in described draw-in groove 31, it is also preferred that the left described base 10 and described sliding sleeve 9 it
Between be provided with tail and block up 13 and cone 12, described tail blocks up 13 and is connected with the lower end of described sliding sleeve 9, and described cone 12 is positioned at
Described tail blocks up the top of 13, and described cone 12 abuts against with described lock dog 11, concrete, the upper end of base 10
Inwall is connected with the outer wall thread of the lower end of central canal 8, and sliding sleeve 9 is positioned at the lower section of central canal 8 and by pin of giving up
14 are connected with base 10, and the outer wall thread of inwall and the lower end of sliding sleeve 9 that tail blocks up the upper end of 13 is connected, and makes cone
12 are blocked up 13 by tail resists between sliding sleeve 9 and base 10 and makes the conical surface of cone 12 be resisted against the inwall of lock dog 11,
And make the outer wall of lock dog 11 be arranged in the draw-in groove 31 of inner tube 19, it is achieved assembly location before giving up of giving up.Anti-
Only give up in advance.
Further, as depicted in figs. 1 and 2, the outer wall of said inner tube 19 is provided with the outer buckle 29 of zigzag, institute
The inwall stating outer tube 7 is provided with buckle 28 in zigzag, is cut off at described pin 14 of giving up and makes described lock dog 11 take off
Realizing under the state given up from described draw-in groove 31, the described relative said inner tube 19 of outer tube 7 axially moves down, described outside
Buckle 29 is mutually locked with described interior buckle 28, it is achieved the one-way locking of the two, prevents setting rear outer tube 7 up,
And cause setting unreliable or lost efficacy, wherein, the outer buckle 29 of the zigzag of inner tube 19 and card in the zigzag of outer tube 7
There is distance D1 between button 28, i.e. when outer tube 7 is the most descending, the two does not contacts, concrete, the internal diameter of sliding sleeve 9
Less than the internal diameter of central canal 8, make the upper end of sliding sleeve 9 be formed with the lower end of central canal 8 and can block at step, and this step
If steel ball 30, to build the pressure in realizing tubing string, after pressure is more than the specified shearing force of pin 14 of giving up, pin of giving up
14 cut off, and make sliding sleeve 9 disengage with base 10 and move down, and tail blocks up 13 and moves down together with sliding sleeve 9, and no longer
Pushing and withstanding cone 12, cone 12 moves down, lock dog 11 lose cone 12 against and move radially inwardly, with from draw-in groove
Abjection in 31, it is achieved give up, wherein, the specified shearing force of pin 14 of giving up is all higher than First offset nail 17
Specified shearing force and the specified shearing force of the second setting pin 20, to ensure to be honored as a queen at stabilizing base to realize giving up again.
Further, as shown in figures 1 and 3, the inner side of described lower cone 21 is provided with interior cutting ferrule 24, described interior card
Set 24 is positioned at the lower section of said inner tube 19, described lower cone 21 and described interior cutting ferrule 24 by deblocking pin 23 phase
Even, it is also preferred that the left described lower cone 21 is provided with inverted L-shaped section 32, set between said inner tube 19 and described section 32
Having outer cutting ferrule 22, the upper end of described outer cutting ferrule 22 to be connected with said inner tube 19, the lower end of described outer cutting ferrule 22 is passed through
Described deblocking pin 23 is folded between described lower cone 21 and described interior cutting ferrule 24；Concrete, outer cutting ferrule 22
The inwall of upper end be connected with the outer wall thread of inner tube 19 lower end, lower cone 21, outer cutting ferrule 22 and interior cutting ferrule 24 lead to
Cross deblocking pin 23 to be fixedly linked, the lower end of the inverted L-shaped section 32 of lower cone 21 and the outer wall of lower contact 25 upper end
Threaded, the lower end of outer cutting ferrule 22 and interior cutting ferrule 24 on its inside is all connected to the upper end of lower contact 25,
So that interior cutting ferrule 24 and outer cutting ferrule 22 are realized supporting by lower contact 25, in reducing, cutting ferrule 24 and outer cutting ferrule 22 are to solution
The active force of offset nail 23, prevents from unsealing in advance；The inwall of interior cutting ferrule 24 is provided with female thread, and interior cutting ferrule 24 is positioned at
Also and there is distance D2 in the lower section of inner tube 19, the internal diameter of interior cutting ferrule 24 is less than or equal to inner tube 19 between inner tube 19
Internal diameter, with and upwards pushing and withstanding inner tube 19 up by interior cutting ferrule 24, thus realize deblocking.
As shown in Figure 1 to Figure 3, the hydraulic bidirectional slip-type hanger of the present invention operationally, will by running string
Hanger is lowered in well, puts into steel ball 30 in hanger, makes steel ball 30 be arranged in central canal 8 and sliding sleeve 9
At step, and suppressing liquid in hanger, highly pressurised liquid is because of the sealing process of steel ball 30, on central canal 8
Perforate 27 enters in hydraulic chamber 26, and promotes hydraulic cylinder 6 descending, by hydraulic cylinder 6 promote outer tube 7, gum cover 15,
Upper cone 16, bi-directional slip 18 are descending, and the second setting pin 20 is cut off, under pressure, and bi-directional slip
The lower slips of 18 gradually opens and realizes grappling, continues to suppress and raise fluid pressure, and First offset nail 17 is cut off,
The upper slips of bi-directional slip 18 opens and realizes grappling, continues to suppress and raise fluid pressure, and hydraulic cylinder 6 continues to press on
Outer tube 7 is descending, and packing element 15 is compressed so that the external diameter of packing element 15 becomes big, and packing element 15 is closely attached on the borehole wall, this
Time, in the zigzag of outer tube 7, buckle 28 is together with outside the zigzag of inner tube 19, buckle 29 Connection Card is located at, it is achieved
Locking, to prevent, outer tube 7 is up causes sealing grappling to be lost efficacy, and the classification being achieved in bi-directional slip 18 is setting, double
To grappling, setting reliable and stable；
Continuing to suppress and raise fluid pressure, liquid effects is delivered to sliding sleeve 9 in the power of steel ball 30, make sliding sleeve 9 with
Between base 10 connect pin 14 of giving up cut off, steel ball 30, sliding sleeve 9, tail block up 13 and cone 12 descending,
Now lock dog 11 disengages with the draw-in groove 31 of inner tube 19, is connected with top connection 1 by running string, by tubing nipple
2, plug 4, seal plug 5, central canal 8, hydraulic cylinder 6, base 10 and lock dog 11 all upwards propose, it is achieved
Give up；
When needs unseal, in hanger under enter to drag for anchor, the outer wall of the lower end dragging for anchor is provided with external screw thread, and it is with interior card
The female thread overlapping 24 inwalls is spirally connected, upper bailing anchor, when the pulling force above carried is more than the shear strength of deblocking pin 23, solves
Offset nail 23 is cut off makes interior cutting ferrule 24 up, after interior cutting ferrule 24 moves distance D2, and the top, upper end of interior cutting ferrule 24
In the lower end of inner tube 19, drive inner tube 19 up, and drive the outer tube 7 by zigzag buckle Yu its clamping simultaneously
The most up, outer tube 7 acts on power on packing element 15 and disappears, and makes packing element 15 gradually recover, bi-directional slip 18
Upper slips and lower slips release grappling, thus realize deblocking；Meanwhile, when inner tube 19 is up, it is connected with inner tube 19
Outer cutting ferrule 22 the most up, and after a up segment distance, outer cutting ferrule 22 is connected to lower cone 21
At section 32, drive lower cone 21 upper shifting together with inner tube 19.
Feature and the advantage of hydraulic bidirectional slip-type hanger of the present invention be:
Hydraulic bidirectional slip-type hanger of the present invention, by First offset nail 17 by the upper slips of bi-directional slip 18 with
Upper cone 16 is connected, the second setting pin 20 is connected with the lower slips of bi-directional slip 18, and the second setting pin 20
Specified shearing force less than First offset nail 17 specified shearing force, with the seat by the specified shearing force of different size
Offset nail is fixed with bi-directional slip 18, it is achieved the classification of bi-directional slip 18 is setting, bidirectionally anchoring, and anchorage force is strong, seat
Seal reliable and stable；By connecting assembly of giving up below central canal 8, and assembly of giving up can be connected in inner tube actively
In the draw-in groove 31 of 19, make hydraulic bidirectional slip-type hanger be suppressed by liquid and can realize giving up, it is to avoid back-off is lost
The problem that hands is easily lost not open, gives up convenient and reliable；The female interior cutting ferrule 24 of tool is set in the lower section of inner tube 19,
By deblocking pin 23 interior cutting ferrule 24, outer cutting ferrule 22 and lower cone 21 are connected, by under enter Special fishing tool
Deblocking, simple operation can be realized.
The above is only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, in any art
Tool usually intellectual, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above
Make a little change or be modified to the Equivalent embodiments of equivalent variations, as long as without departing from technical solution of the present invention
Hold, any simple modification, equivalent variations and modification above example made according to the technical spirit of the present invention, all
Still fall within the range of technical solution of the present invention.
Claims (8)
1. a hydraulic bidirectional slip-type hanger, it is characterised in that described hydraulic bidirectional slip-type hanger includes:
Inner tube, its inwall is provided with draw-in groove, and the outside of said inner tube is arranged with outer tube, packing element, epicone the most successively
Body, bi-directional slip and lower cone, described upper cone sets pin with the upper end of described bi-directional slip by first and is connected,
The upper end of described lower cone sets pin with the lower end of described bi-directional slip by second and is connected, the lower end of described lower cone
Connect lower contact；
Central canal, it is positioned at the inside of said inner tube, is provided with seal plug between upper end and the described outer tube of described central canal,
The lower end of described central canal is connected with assembly of giving up, described in the give up outside of assembly can be arranged in the draw-in groove of said inner tube,
Being provided with hydraulic cylinder between described central canal and described outer tube, the outside of described hydraulic cylinder is arranged in described outer tube, described in
Heart pipe is provided with perforate, and described perforate is between described seal plug and described hydraulic cylinder.
Hydraulic bidirectional slip-type hanger the most according to claim 1, it is characterised in that described second sets
The specified shearing force of pin sets the specified shearing force of pin less than described first.
Hydraulic bidirectional slip-type hanger the most according to claim 1, it is characterised in that described in give up assembly
Including base and sliding sleeve, described base between described sliding sleeve and said inner tube, the upper end of described base with described in
Heart pipe is connected, and described sliding sleeve is connected by pin of giving up with described base, and described base is provided with the lock that can move radially
Block, described lock dog can be arranged in described draw-in groove.
Hydraulic bidirectional slip-type hanger the most according to claim 3, it is characterised in that described base and institute
Stating and be provided with between sliding sleeve that tail is stifled and cone, described tail is stifled to be connected with the lower end of described sliding sleeve, and described cone is positioned at described tail
Stifled top, described cone abuts against with described lock dog.
Hydraulic bidirectional slip-type hanger the most according to claim 3, it is characterised in that outside said inner tube
Wall is provided with the outer buckle of zigzag, and the inwall of described outer tube is provided with buckle in zigzag, is cut off at described pin of giving up and makes
Described lock dog departs from described draw-in groove and realizes under the state given up, and described outer tube axially moves down relative to said inner tube, described
Outer buckle is mutually locked with described interior buckle.
Hydraulic bidirectional slip-type hanger the most according to claim 1, it is characterised in that described lower cone
Inner side is provided with interior cutting ferrule, and described interior cutting ferrule is positioned at the lower section of said inner tube, described lower cone and described interior cutting ferrule by solving
Offset nail is connected.
Hydraulic bidirectional slip-type hanger the most according to claim 6, it is characterised in that described lower cone sets
There is inverted L-shaped section, between said inner tube and described section, be provided with outer cutting ferrule, the upper end of described outer cutting ferrule and said inner tube
Being connected, the lower end of described outer cutting ferrule is folded between described lower cone and described interior cutting ferrule by described deblocking pin.
Hydraulic bidirectional slip-type hanger the most according to claim 1, it is characterised in that said inner tube interior
Footpath is between 124mm to 126mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437016.8A CN105937382B (en) | 2016-06-17 | 2016-06-17 | Hydraulic bidirectional slip type hanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437016.8A CN105937382B (en) | 2016-06-17 | 2016-06-17 | Hydraulic bidirectional slip type hanger |
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| Publication Number | Publication Date |
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| CN105937382A true CN105937382A (en) | 2016-09-14 |
| CN105937382B CN105937382B (en) | 2018-11-16 |
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| CN201610437016.8A Active CN105937382B (en) | 2016-06-17 | 2016-06-17 | Hydraulic bidirectional slip type hanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236220A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团工程技术研究院有限公司 | One kind is exempted to be buckled to rotary tail running tool and method |
| CN110723698A (en) * | 2019-11-14 | 2020-01-24 | 杭州萧山佳佳工具有限公司 | Multifunctional crowbar and use method thereof |
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| CN2550482Y (en) * | 2002-01-14 | 2003-05-14 | 中国石油化工股份有限公司 | Double function tail tube suspending device |
| CN202148879U (en) * | 2011-07-23 | 2012-02-22 | 大连华科机械有限公司 | Hanging packer for horizontal well |
| CN203296727U (en) * | 2013-06-05 | 2013-11-20 | 中国石油集团川庆钻探工程有限公司 | Mechanical-hydraulic double-acting releasing rotary tail pipe hanger |
| US20150252635A1 (en) * | 2014-03-04 | 2015-09-10 | Cameron International Corporation | Tubing hanger running tool system and method |
| CN104989306A (en) * | 2015-08-06 | 2015-10-21 | 中国石油集团长城钻探工程有限公司 | Releasable screen tube hanger |
| CN205778687U (en) * | 2016-06-17 | 2016-12-07 | 中国石油天然气股份有限公司 | Hydraulic bidirectional slip type hanger |
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| CN109236220A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团工程技术研究院有限公司 | One kind is exempted to be buckled to rotary tail running tool and method |
| CN109236220B (en) * | 2018-11-28 | 2023-09-12 | 中国石油天然气集团有限公司 | Back-off-free rotary tail pipe running tool and method |
| CN110723698A (en) * | 2019-11-14 | 2020-01-24 | 杭州萧山佳佳工具有限公司 | Multifunctional crowbar and use method thereof |
| CN110723698B (en) * | 2019-11-14 | 2024-04-26 | 杭州萧山佳佳工具有限公司 | Multifunctional crow bar and use method thereof |
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