CN109209292A - A kind of recyclable through tubing bridge plug of high divergence ratio - Google Patents
A kind of recyclable through tubing bridge plug of high divergence ratio Download PDFInfo
- Publication number
- CN109209292A CN109209292A CN201811447721.1A CN201811447721A CN109209292A CN 109209292 A CN109209292 A CN 109209292A CN 201811447721 A CN201811447721 A CN 201811447721A CN 109209292 A CN109209292 A CN 109209292A
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- Prior art keywords
- assembly
- bridge plug
- formula
- protrusion
- hinge
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 241000893568 Diphylleia cymosa Species 0.000 claims description 23
- 210000000078 claw Anatomy 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012856 packing Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 9
- 238000004873 anchoring Methods 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 8
- 239000000806 elastomer Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 240000005546 Piper methysticum Species 0.000 description 1
- 235000016787 Piper methysticum Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/134—Bridging plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
Abstract
The present invention relates to a kind of complete well of oil gas field and oil recovery gas producing technology technique devices, the recyclable through tubing bridge plug tool of especially high divergence ratio, the oil-pipe bridge plug includes that spring assembly is folded in the first combination, heavy hinge formula slips assembly, second combines folded spring assembly, first articulated connecting rod formula protrusion-dispelling mechanism assembly and the first articulated connecting rod formula protrusion-dispelling mechanism assembly, lock assembly, feeding is given up assembly, the middle position of the oil-pipe bridge plug is provided with central tube, described first combines folded spring assembly, the heavy hinge formula slips assembly of circumference array arrangement, second combines folded spring assembly, first articulated connecting rod formula protrusion-dispelling mechanism assembly and second joint formula link-type protrusion-dispelling mechanism assembly, lock assembly, feeding assembly of giving up is arranged and is mounted on central tube.The present invention makes piston only need lesser stroke using crank link mechanism, just can obtain great divergence ratio.
Description
Technical field
The present invention relates to a kind of complete well of oil gas field and oil recovery gas producing technology technique device, especially high divergence ratio be can be recycled
Through tubing bridge plug tool.
Background technique
For bridge plug for carrying out zone isolation in oil/gas well, bridge plug is usually made into packing element by elastic rubber, carry out liquid and
The packing of pressure, the expansion anchor mechanism of bridge plug, for bridge plug to be fixed under pit shaft pressure difference.Bridge plug is in oil and gas development mistake
It is widely used in journey, mainly: temporarily or permanently insulate payzone, packing water layer, for workover treatment when provisional bridge plug, squeeze
Note operation, abandoned well operation, the acid stimulation for selecting layer, the scale removal operation for selecting layer, is looked into the provisional production packer as asking when production
It finds out the production layer of water, select layer test, the leak detection of casing/oil pipe, permanently or temporarily property packing payzone, packing water layer, provisional
Bridge plug is for workover treatment/change shaft mouth operation, shaft bottom throttling, the recyclable water outlet payzone intermediate across envelope packing, packing, packing
The damaged sand-proof pipe of the oil pipe of leakage, casing, packing, as subsequent gravel pack, the depth control of deflecting sidetracking or perforating job
System label etc..
To realize excellent sealing, commonly uses the general outer diameter of bridge plug and casing inner diameter gap is smaller, but need in many cases
Bridge plug must be by some narrow spaces, such as oil pipe, valve and pipe nipple, and need to seal biggish wellbore space.Such as: passing through
Tubing seal casing carries out water-blocking operation, the operation for recycling steel wire or continuous pipe to take out bridge plug after fulfiling assignment, the above mistake
Journey is unable to satisfy demand for conventional bridge plug.
Known technology is needed with longer bridge plug, to adapt to biggish divergence ratio needs.The setting expansion type of cable is excessively oily
Total length (containing bridge plug and setting tool) 6m-9m long of bridge plug.The bridge plug of such length makes in some harsh operating environments
The passability of tool is unable to get guarantee, therefore bridge plug can not take out after being unable to complete operation or operation.
Summary of the invention
The purpose of the present invention is to provide a kind of recyclable through tubing bridge plugs of high divergence ratio, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of recyclable through tubing bridge plug of high divergence ratio, the oil-pipe bridge plug include that spring assembly, heavy hinge are folded in the first combination
Chain type slips assembly, second combine folded spring assembly, the first articulated connecting rod formula protrusion-dispelling mechanism assembly and the first articulated connecting rod formula
Protrusion-dispelling mechanism assembly, lock assembly, feeding are given up assembly, and the middle position of the oil-pipe bridge plug is provided with central tube, and described first
Combine folded spring assembly, the heavy hinge formula slips assembly of circumference array arrangement, the folded spring assembly of the second combination, the first articulated connecting rod
Formula protrusion-dispelling mechanism assembly and second joint formula link-type protrusion-dispelling mechanism assembly, lock assembly, feeding assembly of giving up are arranged and are mounted on
On central tube, the lock assembly includes movable limit sleeve, screw, lock ring, spring, the first pushing cylinder, connector, inclined-plane, plane, institute
Stating feeding assembly of giving up includes pulling head, elastic claw, only set, shear pin, the second pushing cylinder and a lifting shaft, after the lock assembly
End is equipped with connector, and the front end of the connector is connected with movable limit sleeve, and the rear end of the connector is connected with pulling head, institute
The rear end for stating connector is provided with bevel structure, is connected to each other between the pulling head and connector by lock ring, the lock ring passes through spiral shell
Nail fixes the rear surface for being fitted in connector, and spring is wound on the screw, and the lifting shaft, which is located at, is sent into assembly of giving up
Rear side, the surface of the lifting shaft are arranged the second pushing cylinder, and the rear end of the pulling head stretches in the second pushing cylinder, the pulling head
It is mutually fixed between lifting shaft by elastic claw.
As a further solution of the present invention: several slots are provided on the elastic claw, so as to radial extension.
As a further solution of the present invention: the folded spring assembly of combination is opposite or assembled arrangement in opposite directions folded by one group
Spring, movable pressing sleeve, throw-out collar composition, the throw-out collar are bonded with folded spring in mutual extrusion, available reliable elasticity recovery power；Institute
Stating folded spring design has a pair of and is in mutually opposite or opposite assembled arrangement, and the elastic force for folding spring is bigger than the elastic force of ring spring
Very much, reliable pretightning force can be provided for slips assembly and packing element assembly, realizes reliable anchoring and sealing.
As a further solution of the present invention: the heavy hinge formula slips assembly of the circumference array arrangement is by hinge branch
Slip insert is distributed in seat, pin shaft, hinge bearing rod, slips, pin shaft composition, the slips outside, and the slips and hinge bearing rod are logical
It crosses pin shaft to be linked, and does circumference array arrangement along rocker bar bearing, it can be in radial 360 ° of directions in oil gas casing
Realize righting and anchoring.
As a further solution of the present invention: the rocker bar bearing and hinge bearing rod are provided with a pair of and are in mutual mirror
As arrangement.
As a further solution of the present invention: the first articulated connecting rod formula protrusion-dispelling mechanism assembly and second joint formula connect
Using central tube as axial line, circumferentially permutation is arranged on central tube rod-type protrusion-dispelling mechanism assembly, the first articulated connecting rod formula
Protrusion-dispelling mechanism assembly and second joint formula link-type protrusion-dispelling mechanism assembly are in mirror symmetry, can utmostly reduce the length of packing element
Degree is conducive to the tripping in narrow space so that the length of inventive article is shorter.Folding can also be repeated and receive
And therefore, can not only carry out deblocking movement, and can and deblocking repeatedly setting in underground, when being conducive to improve underground work
Effect improves the adaptability of tool kinds of processes.
As further scheme of the invention: the first articulated connecting rod formula protrusion-dispelling mechanism assembly and second joint formula
Link-type protrusion-dispelling mechanism assembly is by pressing sleeve, pressing sleeve, rocker bar bearing, button-head hinge strut, pin shaft, umbrella shape button-head hinge strut group
At.One end of the button-head hinge strut is bulb, and the other end of the button-head hinge strut is pin shaft hole, the umbrella shape bulb
One end of hinge bearing rod is bulb, and the other end of the umbrella shape button-head hinge strut is the pin shaft that can be linked with pin shaft hole pin shaft
The outside in hole, the umbrella shape button-head hinge strut is the structure of umbrella leaf, and there are umbrella leaf flash and the low side of umbrella leaf to be formed for the umbrella leaf
One asymmetrical T-shaped structure；In circumferential arrangement, umbrella leaf flash can be laminated on the low side of umbrella leaf, and carry out diameter
To when expansion, the umbrella leaf flash of adjacent umbrella shape button-head hinge strut, which remains, to be laminated on the low side of umbrella leaf, and then is formed outer
Edge structure can form complete support to packing element on 360 ° of directions.
Compared with prior art, the beneficial effects of the present invention are:
For the complete well Back-off Pipe String process characteristic of oil gas field, the present invention provides a kind of recyclable through tubing bridge plug work of high divergence ratio
Tool, technological merit are:
The present invention provides a kind of recyclable through tubing bridge plug tool of the high divergence ratio of short, and length can control within 2m
(containing bridge plug and setting tool), although the present invention is using hydraulic piston or the setting mode of mechanical compression, crank connecting link machine
Structure makes piston only need lesser stroke, just can obtain great divergence ratio.
Bridge plug of the present invention uses the inflatable steel skeleton of high expansion elastomer, elastomer can expansion and contraction repeatedly, can
On the one hand expansion steel skeleton provides good support and screen resilience for elastomer, on the other hand prevent extrusion from providing for elastomer
Support.
Bridge plug of the present invention is held in crank during folding movement using the heavy hinge formula slips of circumference array arrangement
Ask force way for end face support, rather than conventional pin shaft supports, reliable anchoring and releasing anchor under this load condition of attaching most importance to
Surely important leverage is provided.The anchorage force that monolithic heavy hinge formula slips can provide is 20t or more.Also, crankshaft prevents
Move down/self-locking structure is moved up, when the pressure difference that bridge plug is born is bigger, self-locking structure is that the radial force that slips provides is bigger, and slips is nibbled
The depth closed into casing is bigger, to enhance the ability that slips prevents sliding.When heavy hinge formula slips activity crank is reversed
When mobile, deformation is straightened from being folded towards in kava structure, and the beneficial outcomes of This move are that slips is easy to release anchoring.
Bridge plug of the present invention uses the connecting rod mechanism assembly of circumference array arrangement, and connecting rod end face is asymmetrical T word
Shape umbrella-shaped structure, to during perpendicular to the axis, although the umbrella leaf between connecting rod rotates displacement to connecting rod from parallel with axis,
But remain and laminate mutually, that is, for umbrella leaf relatively elastic body end face, remains complete seamless face.Beneficial result
It is that in extrusion expansion, end face can not squeeze out elastomer from this face, to ensure that sealability.Two groups of opposite circles
The connecting rod mechanism assembly of all array arrangements is placed in elastomer two sides, so that bridge plug of the present invention has two-way receiving
The ability of pressure difference.When connecting rod mechanism moves backward, deformation is straightened from being folded towards in connecting rod mechanism, This move
Beneficial outcomes are that bridge plug is easy to unseal.
Bridge plug of the present invention is using folded spring assembly is combined, when heavy hinge formula slips and connecting rod mechanism assembly fold
When, the pretightning force in certain distance is provided for them, the beneficial outcomes of this way are, when locking mechanism, slips, connecting rod machine
Structure, elastomer slight deformation displacement when, still have enough axial compressive forces so that bridge plug of the present invention remain anchoring with it is close
Envelope.
Detailed description of the invention
Fig. 1 is axial schematic diagram when its articulated connecting rod formula protrusion-dispelling mechanism assembly is opened after the present invention is setting.
Fig. 2 is the structural schematic diagram of tripping in state of the present invention.
Fig. 3 is that the folded spring assembly of the first combination of tripping in state of the present invention and the structure in heavy hinge formula slips assembly region are cutd open
Face figure.
Fig. 4 is the second of the tripping in state of the present invention structure for combining folded spring assembly and articulated connecting rod formula protrusion-dispelling mechanism assembly
Sectional view.
Fig. 5 is the lock assembly of tripping in state of the present invention and feeding the is given up cross-sectional view of the structure of assembly.
Fig. 6 is the structural schematic diagram of the setting state of the present invention.
Fig. 7 is that the folded spring assembly of the first combination of the setting state of the present invention and the structure in heavy hinge formula slips assembly region are cutd open
Face figure.
Fig. 8 is the second of the setting state of the present invention structure for combining folded spring assembly and articulated connecting rod formula protrusion-dispelling mechanism assembly
Sectional view.
Fig. 9 is the cross-sectional view of the structure of the lock assembly of the setting state of the present invention.
Figure 10 is that the feeding of the setting state of the present invention is given up the cross-sectional view of the structure of assembly.
Figure 11 is the structural schematic diagram of umbrella leaf in the present invention.
Figure 12 is the structural schematic diagram of hinge bearing rod in the present invention.
Figure 13 is the structural schematic diagram of pin shaft in the present invention.
Figure 14 is the structural schematic diagram of ball cup in the present invention.
Figure 15 is the structural schematic diagram of slip insert in the present invention.
Figure 16 is the structural schematic diagram of slot in the present invention.
In figure: 1. folded springs, 2. movable pressing sleeves, 3. throw-out collars, 4. central tubes, 5. rocker bar bearings, 6. pin shafts, 7. hinge bearing rods,
8. slips, 9. pin shafts, 10. rocker bar bearings, 11. button-head hinge struts, 12. pin shafts, 13. umbrella shape button-head hinge struts, 14. pressures
Set, 15. pressing sleeves, 16. packing elements, 17. movable limit sleeves, 18. screws, 19. lock rings, 20. pulling head, 21. elastic claws, 22. only open
Set, 23. shear pins, 24. springs, 25. first pushing cylinders, 26. connectors, 27. inclined-planes, 28. planes, 29. second pushing cylinders, 30. lifting shafts,
31. combining folded spring assembly, 32. heavy hinge formula slips assemblies, 33. combine folded spring assembly, and 34. first articulated connecting rod formulas are anti-
Prominent mechanism assembly, 35. second joint formula link-type protrusion-dispelling mechanism assemblies, 36. lock assemblies, 37. are sent into assembly of giving up, 41. balls
Head, 42. pin shaft holes, 43. bulbs, 44. pin shaft holes, 45. umbrella leaves, 46. umbrella leaf flash, the low side of 47. umbrella leaves, 48. slots, outside 49.
Edge, 50. slip inserts, 51. ball cups, 52. facades.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one:
A kind of recyclable through tubing bridge plug of high divergence ratio, the recyclable through tubing bridge plug tool of the high divergence ratio is mainly by group
Folded spring assembly 31, the heavy hinge formula slips assembly 32 of circumference array arrangement, the folded spring assembly 33 of combination are closed, a pair of of mirror symmetry
The articulated connecting rod formula protrusion-dispelling mechanism assembly 34,35 of circumference array arrangement, is sent into the composition such as assembly 37 of giving up at lock assembly 36.
Folded spring assembly 31 is combined mainly by the folded spring 1 of one group of opposite or opposite assembled arrangement, movable pressing sleeve 2,3 groups of throw-out collar
At when throw-out collar 3 is compressed axially folded spring 1, available reliable elasticity recovery power folds bullet of the elastic force than ring spring of spring
Property power it is much larger, reliable pretightning force can be provided for slips assembly and packing element assembly, realize reliable anchoring and sealing.
As shown in attached drawing 1,2, circumference array arrangement heavy hinge formula slips assembly 32 by a pair of of mirror symmetry hinge
The compositions such as support 5, pin shaft 6, the hinge bearing rod 7 of a pair of of mirror symmetry, slips 8, pin shaft 9.Slip insert is distributed on the outside of slips 8
50, slips 8 and hinge bearing rod 7 are linked by pin shaft, and do circumference array arrangement along rocker bar bearing 5, can be in radial direction
Righting and anchoring are realized in oil gas casing in 360 ° of directions.
The articulated connecting rod formula protrusion-dispelling mechanism assembly 34,35 of the circumference array arrangement of a pair of of mirror symmetry is by pressing sleeve 14, pressure
The composition such as set 15, rocker bar bearing 10, button-head hinge strut 11, pin shaft 12, umbrella shape button-head hinge strut 13.
As shown in attached drawing 5,6,7,11 one end of button-head hinge strut is bulb 41, and the other end is pin shaft hole 42, umbrella shape bulb
13 one end of hinge bearing rod is bulb 43, and the other end is the pin shaft hole 44 that can be linked with 42 pin shaft of pin shaft hole.Umbrella shape button-head hinge
The outside of strut 13 is the structure of umbrella leaf 45, and it to be an asymmetrical T-shaped knot that there are the sides 47 low with umbrella leaf of umbrella leaf flash 46
Structure, in circumferential arrangement, umbrella leaf flash 46 can be laminated on the low side 47 of umbrella leaf, and when being radially expanded, adjacent umbrella
The umbrella leaf flash 46 of shape button-head hinge strut 13, which remains, to be laminated on the low side 47 of umbrella leaf, and then 49 structure of outer rim formed can
To form complete support to packing element 16 on 360 ° of directions.
10 circumference array mode of rocker bar bearing is provided with several ball cups 51 and facade 52, and bulb 43 and bulb 41 are pressed respectively
Set 14 and pressing sleeve 15 are limited in ball cup 51, are limited by facade 52, umbrella shape button-head hinge strut 13 and button-head hinge branch
Bar 11 can only do radial dilatation and contraction along bulb central point.Therefore, the articulated connecting rod formula of whole circumference array arrangement is anti-
Prominent 34,35 assembly of mechanism assembly can be folded respectively and be received simultaneously under the action of axial force, and then simultaneously by the compression of packing element 16
Radial dilatation, in 16 radial dilatation of packing element, 34,35 assembly of articulated connecting rod formula protrusion-dispelling mechanism assembly of circumference array arrangement is protected
Shield packing element avoids squeezing out from shell clearance, so that the hydraulic bearing capacity of packing element is improved, according to different downhole temperatures, at this
Under kind structural defence, the bearing capacity of packing element 16 can achieve 15MPa-30MPa, and not by breakage.
Such as attached drawing 2, the huge advantage of 34 structure of articulated connecting rod formula protrusion-dispelling mechanism assembly of circumference array arrangement is: can be with
The length of packing element 16 is utmostly reduced, so that the length of inventive article is shorter, is conducive to the tripping in narrow space.
Further advantage is that folding can be repeated and receive simultaneously, therefore, deblocking movement can be not only carried out, and can be in underground
Repeatedly setting and deblocking is conducive to improve underground work timeliness, improves the adaptability of tool kinds of processes, such as: it repeatedly blocks and makees
Industry etc..
As shown in Figure 1, 2, lock assembly 36 is made of movable limit sleeve 17, screw 18, lock ring 19, spring 24 etc..It is setting
When, pushing cylinder 25 is along axis (in figure to the left) movement downwards, while central tube is along axis (in figure to the right) movement upwards, activity limit
Set 17 drive connector 26 in position moves upwards, and the lock ring 19 supported originally by plane 28 is pasted with inclined-plane 27 under the action of the spring
It closes, after completing setting, in the case where combining the double action of restoring force of folded spring assembly 31 and packing element 16, central tube 4 can be oriented
The trend of lower movement, at this point, the inner circle of the lock ring 19 of skew can engage into central tube 4 under the action of frictional force, form lock
It is fixed, and then keep slips anchoring and packing element radial dilatation.
As shown in Figure 1, 2, be sent into assembly 37 of giving up by pulling head 20, elastic claw 21, only set 22, shear pin 23 etc. form,
It is provided with several slots 48 on elastic claw 21, can radially uphold.Under it is fashionable, pushing cylinder 29 and lifting shaft 30 are connected to mark
On quasi- setting tool, the setting tool of standard is described herein as omiting.During tripping in, radial dilatation of the elastic claw 21 by only set 22
Limitation, can not open, can only catch pulling head 20.Under tool to after setting down well placement, pushing cylinder is moved downward, and lifting shaft is upward
Movement, when strength reaches setting value, shear pin 23 is cut, and lifting shaft 30 continues up, and then is driven and only opened set 22 upwards
Movement, elastic claw 21 could open, lifting shaft 30 continues up, most after only a set 22 completely disengages restraining position
Pushing cylinder 29, elastic claw 21 etc. is driven all to be detached from pulling head 20 eventually, completion is sent into and operation of giving up.
Embodiment two:
The present embodiment further optimizes as embodiment one, on its basis, when needing to unseal and proposing the present invention, tripping in mark
Standard salvages dipper, and standard salvages dipper and is described herein as omiting.Dipper is caught lock ring 19 and is above mentioned, and central tube 4 is combining folded spring assembly
31 and packing element 16 restoring force double action under, move downward, and then drive and combine folded spring assembly 31, circumference array arrangement
Heavy hinge formula slips assembly 32, combine the articulated connecting rod formula protrusion-dispelling mechanism assembly of folded spring assembly 33, circumference array arrangement
34, articulated connecting rod formula protrusion-dispelling mechanism assembly 35, the lock assembly 36 of circumference array arrangement return to original state.Inventive article
It can be from underground out.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of recyclable through tubing bridge plug of high divergence ratio, the oil-pipe bridge plug include the first combination fold spring assembly (31),
Heavy hinge formula slips assembly (32), second combine folded spring assembly (33), the first articulated connecting rod formula protrusion-dispelling mechanism assembly (34)
It gives up assembly (37) with the first articulated connecting rod formula protrusion-dispelling mechanism assembly (35), lock assembly (36), feeding, the oil-pipe bridge plug
Middle position is provided with central tube (4), and described first combines the heavy hinge formula slips of folded spring assembly (31), circumference array arrangement
Assembly (32), second combine folded spring assembly (33), and the first articulated connecting rod formula protrusion-dispelling mechanism assembly (34) and second joint formula connect
Rod-type protrusion-dispelling mechanism assembly (35), lock assembly (36) are sent into assembly (37) of giving up and are arranged and are mounted on central tube (4), special
Sign is that the lock assembly (36) includes movable limit sleeve (17), screw (18), lock ring (19), spring (24), the first pushing cylinder
(25), connector (26), inclined-plane (27), plane (28), the assembly (37) of giving up of being sent into includes pulling head (20), elastic claw
(21), only set (22), shear pin (23), the second pushing cylinder (29) and lifting shaft (30), the rear end of the lock assembly (36) are equipped with
Connector (26), the front end of the connector (26) are connected with movable limit sleeve (17), the rear end of the connector (26) and pulling head
(20) it is connected, the rear end of the connector (26) is provided with inclined-plane (27) structure, between the pulling head (20) and connector (26)
It is connected to each other by lock ring (19), the lock ring (19) passes through screw (18) the fixed rear surface for being fitted in connector, the screw
(18) it is wound on spring (24), the lifting shaft (30) is located at the rear side for being sent into assembly (37) of giving up, the lifting shaft
(30) surface is arranged the second pushing cylinder (29), and the rear end of the pulling head (20) stretches in the second pushing cylinder (29), the pulling
It is mutually fixed between head (20) and lifting shaft (30) by elastic claw (21).
2. the recyclable through tubing bridge plug of high divergence ratio according to claim 1, which is characterized in that the elastic claw (21)
On be provided with several slots (48).
3. the recyclable through tubing bridge plug of high divergence ratio according to claim 1, which is characterized in that first combination is folded
Spring assembly (31) and second combines folded spring (1), the movable pressing sleeve of folded spring assembly (33) by one group of opposite or opposite assembled arrangement
(2), throw-out collar (3) forms, and the throw-out collar (3) and folded spring (1) be bondeds in mutual extrusion, the folded spring (1) design have a pair and
In mutually opposite or opposite assembled arrangement.
4. the recyclable through tubing bridge plug of high divergence ratio according to claim 1, which is characterized in that the circumference array row
The heavy hinge formula slips assembly (32) of column is by rocker bar bearing (5), pin shaft (6), hinge bearing rod (7), slips (8), pin shaft (9) group
At, it being distributed with slip insert (50) on the outside of the slips (8), the slips (8) and hinge bearing rod (7) are linked by pin shaft,
And circumference array arrangement is done along rocker bar bearing (5).
5. the recyclable through tubing bridge plug of high divergence ratio according to claim 4, which is characterized in that the rocker bar bearing
(5) it is provided with hinge bearing rod (7) a pair of and is in mutual mirror alignment.
6. the recyclable through tubing bridge plug of high divergence ratio according to claim 1, which is characterized in that first articulated type
Link-type protrusion-dispelling mechanism assembly (34) and second joint formula link-type protrusion-dispelling mechanism assembly (35) are in for axial line with central tube (4)
Circumference permutation is arranged on central tube (4), and the first articulated connecting rod formula protrusion-dispelling mechanism assembly (34) and second joint formula connect
Rod-type protrusion-dispelling mechanism assembly (35) is in mirror symmetry.
7. the recyclable through tubing bridge plug of high divergence ratio according to claim 6, which is characterized in that first articulated type
Link-type protrusion-dispelling mechanism assembly (34) and second joint formula link-type protrusion-dispelling mechanism assembly (35) are by pressing sleeve (14), pressing sleeve
(15), rocker bar bearing (10), button-head hinge strut (11), pin shaft (12), umbrella shape button-head hinge strut (13) composition；The bulb
One end of hinge bearing rod (11) is bulb (41), and the other end of the button-head hinge strut (11) is pin shaft hole (42), the umbrella
One end of shape button-head hinge strut (13) is bulb (43), and the other end of the umbrella shape button-head hinge strut (13) is can be with pin
The pin shaft hole (44) of axis hole (42) pin shaft link, the outside of the umbrella shape button-head hinge strut (13) is the structure of umbrella leaf (45),
There are umbrella leaf flash (46) and the low side of umbrella leaf (47) to form an asymmetrical T-shaped structure for the umbrella leaf (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811447721.1A CN109209292B (en) | 2018-11-29 | 2018-11-29 | Recoverable oil pipe bridge plug with high expansion ratio |
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| CN201811447721.1A CN109209292B (en) | 2018-11-29 | 2018-11-29 | Recoverable oil pipe bridge plug with high expansion ratio |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983338A (en) * | 2021-02-07 | 2021-06-18 | 宁夏振盐鑫盛通工贸有限公司 | Environment-friendly vacuum protection device for oil well operation |
| CN114607316A (en) * | 2022-04-21 | 2022-06-10 | 西南石油大学 | Recoverable bridge plug |
| CN115012876A (en) * | 2022-07-01 | 2022-09-06 | 西南石油大学 | Small-diameter large-deformation single-slip type soluble bridge plug |
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| CN1046777A (en) * | 1989-04-26 | 1990-11-07 | 中原石油勘探局采油工艺研究所 | Removable press-fracturing bridge plug |
| CN104070169A (en) * | 2014-06-24 | 2014-10-01 | 华南理工大学 | Quantitative powder-filling device for sintering-type heat pipes |
| WO2016101374A1 (en) * | 2014-12-26 | 2016-06-30 | 杰瑞能源服务有限公司 | Bridge plug having large drift diameter and setting method thereof |
| CN209670942U (en) * | 2018-11-29 | 2019-11-22 | 弗润联科(北京)石油科技有限公司 | A kind of recyclable through tubing bridge plug of high divergence ratio |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1046777A (en) * | 1989-04-26 | 1990-11-07 | 中原石油勘探局采油工艺研究所 | Removable press-fracturing bridge plug |
| CN104070169A (en) * | 2014-06-24 | 2014-10-01 | 华南理工大学 | Quantitative powder-filling device for sintering-type heat pipes |
| WO2016101374A1 (en) * | 2014-12-26 | 2016-06-30 | 杰瑞能源服务有限公司 | Bridge plug having large drift diameter and setting method thereof |
| CN209670942U (en) * | 2018-11-29 | 2019-11-22 | 弗润联科(北京)石油科技有限公司 | A kind of recyclable through tubing bridge plug of high divergence ratio |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983338A (en) * | 2021-02-07 | 2021-06-18 | 宁夏振盐鑫盛通工贸有限公司 | Environment-friendly vacuum protection device for oil well operation |
| CN112983338B (en) * | 2021-02-07 | 2022-08-02 | 宁夏振盐鑫盛通工贸有限公司 | Environment-friendly vacuum protection device for oil well operation |
| CN114607316A (en) * | 2022-04-21 | 2022-06-10 | 西南石油大学 | Recoverable bridge plug |
| CN114607316B (en) * | 2022-04-21 | 2023-05-12 | 西南石油大学 | Recyclable bridge plug |
| CN115012876A (en) * | 2022-07-01 | 2022-09-06 | 西南石油大学 | Small-diameter large-deformation single-slip type soluble bridge plug |
| CN115012876B (en) * | 2022-07-01 | 2023-08-11 | 西南石油大学 | Small-diameter large-deformation single slip type soluble bridge plug |
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| CN109209292B (en) | 2024-03-22 |
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