CN205532468U - But cable is sat and is sealed recovery type bridging plug - Google Patents
But cable is sat and is sealed recovery type bridging plug Download PDFInfo
- Publication number
- CN205532468U CN205532468U CN201620104186.XU CN201620104186U CN205532468U CN 205532468 U CN205532468 U CN 205532468U CN 201620104186 U CN201620104186 U CN 201620104186U CN 205532468 U CN205532468 U CN 205532468U
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- CN
- China
- Prior art keywords
- center tube
- slips
- bridging plug
- cable
- neck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model belongs to the technical field of the manufacturing and designing is equipped to the oil development, specifically a but cable is sat and is sealed recovery type bridging plug. The slips is withdrawed the mechanism and is adopted novel forked tail draw -in groove fits, the slips can't be withdrawed when effectively reducing the bridging plug deblocking risk. Adopting the three packing elements form of sealing, reducing instrument inner sealing quantity simultaneously, the sealing reliability is higher. The locking piece cooperatees with the catch, realizes lock status and unblock function. The toroidal cavity who retrieves between a neck and the seat pushing cylinder sets up unique " > " a type lip sand control, eliminate lifting the stroke inadequately, the risk of unable deblocking because of the sand setting leads to retrieving the neck. The utility model discloses its compact structure, the connection position sets up the positioning benchmark and the commentaries on classics measure is prevented to the spline, has reduced the assembly and has safeguarded the degree of difficulty.
Description
Technical field
This utility model belongs to oil exploitation equipment Design manufacturing technology field, and specifically a kind of cable sets recoverable bridging plug.
Background technology
Cable sets recoverable bridging plug, is mainly used to completely cut off payzone, carries out the snubbing serving during constructions such as follow-up well workover, volume increase.After operation is complete, bridging plug can be tripped out recovery as required.
Existing cable sets recoverable bridging plug, and location dimension is few, I& M inconvenience；During bridging plug is gone into the well, easily occurring midway to set, construction operation is the most smooth；Slips spring failure, when bridging plug reclaims, slips is difficult to retract；Solve sealing mechanism and there is sand plug equivalent risk.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of cable is provided to set recoverable bridging plug, reduce assembling maintenance difficulty, seal relatively reliable, effectively reduce that tradition slips spring failure retraction is not enough, top sand setting causes the irretrievable risk of bridging plug.
For realizing above-mentioned technical purpose, the scheme that this utility model provides is: a kind of cable sets recoverable bridging plug, including reclaiming neck, discharging bolt, set pushing cylinder, mandrel, shear pin, tightening pin, lock dog, lead ring, packing element, spacer ring, lining, upper center tube, lock ring, central canal, upper cone, slip sleeve, slips, lower center tube, guide shoe, release bolt is threadeded successively with mandrel, lower center tube, guide shoe, and guide shoe is fixed by tightening pin with lower center tube threaded connection place；Bottom slip sleeve, inner spline groove coordinates with lower center tube external spline, is adjacent to guide shoe upper surface；Slips is 4, circumferencial direction is evenly arranged in slip sleeve, the upper end dovetail draw-in groove of slips snaps in the dovetail fin of upper cone, is slidably matched therewith, the lower end of slips is slidably matched with slip sleeve base inclined-plane, and 4 shear pins that upper cone threaded upper ends connects lead ring, lower end is evenly arranged by circumferencial direction with slip sleeve are connected；Central canal bottom and lower center tube are bonded, and central canal top is to threaded with upper center tube, and 3 lock dogs that upper center tube is evenly arranged by circumferencial direction with mandrel are fixed；The external thread rotary of lock ring, in lining, is fixed by screw, under the inner ring screw thread free state of lock ring, is positioned at central canal upper smooth cylindrical；Lining lower end cylindrical has card key at 1, is stuck in upper cone draw-in groove, and the connection of lining threaded upper ends sets pushing cylinder；Packing element is divided into upper, middle and lower three joint, is provided with a spacer ring between every two joint packing elements, and packing element and spacer ring are all directly sleeved on outside lining；Reclaim neck and set pushing cylinder, upper center tube is fixed together with shear pin respectively, and the bottom inner circle reclaiming neck is enclosed within upper center tube lock dog installation site, and end face withstands on lining upper end.
And, the dovetail draw-in groove bevel angle α of slips is 15～45 °, and dovetail draw-in groove cross section β angle is 15～85 °.
And, slips flank designs spacing wing, and spacing wing One-sided Widths is 1mm≤H-L≤10mm, and spacing wing inside and outside circle is arc surface, and inner arc surface R1 is than the bridging plug big 0 ~ 10mm of lower center tube outside diameter, exterior arc surface R2 0 ~ 10mm less than circular diameter in slip sleeve.
And, the lock dog arranged between mandrel and central canal, it is evenly arranged at circumferencial direction, number is 2～6 pieces, and lock dog bottom chamfer face coordinates face angle a to be 15～45 ° with mandrel, and is slidably matched for ramp type.
And, reclaim neck top and use thread form angle 60～the buttless thread of 80 °.
And, by reclaiming neck, unidirectional " > is set in setting the toroidal cavity that pushing cylinder is constituted " type lip envelope.
The beneficial effects of the utility model are: compared with prior art, and structure is compacter, reduce assembling maintenance difficulty, seal relatively reliable, effectively reduce that tradition slips spring failure retraction is not enough, top sand setting causes the irretrievable risk of bridging plug.
Accompanying drawing explanation
Fig. 1 is the assembly structure chart that a kind of cable of this utility model sets recoverable bridging plug.
Fig. 2 is this utility model dovetail card slot fit face schematic diagram.
Fig. 3 is the sectional view of upper cone at A in Fig. 2.
Fig. 4 is the sectional view of slips at A in Fig. 2.
Fig. 5 is that this utility model lock dog arranges schematic diagram.
Fig. 6 is this utility model " > " type lip envelope layout schematic diagram.
Wherein, 1, reclaim neck, 2, " > " type lip envelope, 3, release bolt, 4, set pushing cylinder, 5, mandrel, 6, shear pin, 8, lock dog, 9, lead ring, 10, upper packing element, 11, spacer ring, 12, lining, 13, middle packing element, 14, upper center tube, 15,0 type circle, 16,0 type circle, 17, lock ring, 18, screw, 19, central canal, 20, upper cone, 21, slip sleeve, 22, shear pin, 23, slips, 24, lower center tube, 25, guide shoe, 26, holding screw, 27, dovetail fin, 28, dovetail draw-in groove, 29, spacing wing.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
The present embodiment provides a kind of cable to set recoverable bridging plug, as it is shown in figure 1, include reclaiming neck 1, release bolt 3, setting pushing cylinder 4, mandrel 5, shear pin 6,22, tightening pin, lock dog 8, lead ring 9, packing element 10,13, spacer ring 11, lining 12, upper center tube 14, lock ring 17, central canal 19, upper cone 20, slip sleeve 21, slips 23, lower center tube 24, guide shoe 25.Release bolt 3 is threadeded successively with mandrel 5, lower center tube 24, guide shoe 25, and guide shoe 25 is fixed by holding screw 26 with lower center tube 24 threaded connection place；Bottom slip sleeve 21, inner spline groove coordinates with lower center tube 24 external spline, is adjacent to guide shoe 25 upper surface；Slips 23 is 4, circumferencial direction is evenly arranged in slip sleeve 21, as shown in Fig. 2 ~ Fig. 4, the upper end dovetail draw-in groove 28 of slips 23 snaps in the dovetail fin 27 of upper cone 20, is slidably matched therewith, the lower end of slips 23 is slidably matched with slip sleeve 21 base inclined-plane, and 4 shear pins 22 that upper cone 20 threaded upper ends connects lead ring 9, lower end is evenly arranged by circumferencial direction with slip sleeve 21 are connected；Central canal 19 bottom is bonded with lower center tube 24, and central canal 19 top is to threaded with upper center tube 14, and 3 lock dogs 8 that upper center tube 14 is evenly arranged by circumferencial direction with mandrel 5 are fixed；The external thread rotary of lock ring 17, in lining 12, is fixed by screw 18, under the inner ring screw thread free state of lock ring 17, is positioned at central canal 19 upper smooth cylindrical；Lining 12 lower end cylindrical has card key at 1, is stuck in upper cone 20 draw-in groove, and the connection of lining 12 threaded upper ends sets pushing cylinder 4；Packing element is divided into upper, middle and lower three to save (lower rubber cylinder is the same with upper packing element specification for upper packing element 10, middle packing element 13, indicates numbering the most in the drawings), is provided with a spacer ring 11, packing element and spacer ring 11 and is all directly sleeved on outside lining 12 between every two joint packing elements；Reclaim neck 1 and set pushing cylinder 4, upper center tube 14 is fixed together with shear pin 6 respectively, and the bottom inner circle reclaiming neck 1 is enclosed within upper center tube 14 lock dog 8 installation site, and end face withstands on lining 12 upper end.
Further, the dovetail draw-in groove 28 bevel angle α of slips 23 is 15～45 °, and dovetail draw-in groove 28 cross section β angle is 15～85 °.
Further, slips 23 flank designs spacing wing 29, and spacing wing 29 One-sided Widths is 1mm≤H-L≤10mm, and spacing wing 29 inside and outside circle is arc surface, inner arc surface R1 is than the bridging plug lower center tube 24 big 0 ~ 10mm of outside diameter, and exterior arc surface R2 is than the little 0 ~ 10mm of circular diameter in slip sleeve 21.
Further, as it is shown in figure 5, the lock dog 8 arranged between mandrel 5 and central canal 19, being evenly arranged at circumferencial direction, number is 2～6 pieces, and lock dog 8 bottom chamfer face coordinates face angle a to be 15～45 ° with mandrel 5, and is slidably matched for ramp type.
Further, reclaim neck 1 top and use thread form angle 60～the buttless thread of 80 °.
Further, as shown in Figure 6, recovery neck 1 unidirectional " > is set in setting the toroidal cavity that pushing cylinder 4 is constituted " type lip envelope 2.
Release bolt 3, mandrel 5, lower center tube 24, guide shoe 25 are together by a threaded connection, and guide shoe 25 is fixed by holding screw 26 with lower center tube 24 threaded connection place, constitute bridging plug " inner core assembly ".
Central canal 19 afterbody spline directly snaps in the keyway of lower center tube 24, prevents from rotating by spline fitted.Upper center tube 14 is threaded togather with central canal 19, and upper center tube 14 upper step hole and mandrel 5 cylindrical circumferential recess are spacing by 3 lock dogs being evenly arranged 8 simultaneously.After recovery neck 1 is connected by shear pin 6 with upper center tube 14, constitute instrument " outer barrel assembly " together.
Dovetail fin 27 circumference uniform distribution of upper cone 20 is arranged, after upper cone 20 snaps in slips 23 dovetail draw-in groove 28, it is through slip sleeve 21 together internal, fixes with shear pin 22, entirety is enclosed within lower center tube 24 periphery, and slip sleeve 21 limits with lower center tube 24 spline fitted and rotates.After lining 12 is threadeded with lock ring 17, screw 18 tightening anti-rotation.Above-mentioned part, together with lock dog 8, constitutes " anchor mechanism " of instrument.
Spacer ring 11, lead ring 9, packing element 10,13 are sequentially sleeved in outside lining 12, and composition " packing element assembly " links together with setting pushing cylinder 4 external screw thread.
During use, cable setting tool Connection Release bolt 3, setting sleeve withstands on and sets pushing cylinder 4 top, after cable setting tool and bridging plug together send into desired setting position, down-hole, light a fire or suppress and carry oil pipe, when upper lifting force exceedes shear pin 6 shearing force, set pushing cylinder 4 the most descending under the effect of setting sleeve, drive lining 12, lock ring 17, upper cone 20 descending promotion slips 23 along slip sleeve 21 be slidably matched inclined-plane extrusion, slip insert will slowly be nipped outer sleeve, simultaneously, lock ring 17 is descending, " packing element assembly " is progressively compressed, when upper lifting force exceed release bolt 3 give up pulling force time, bridging plug realizes giving up." packing element assembly " is attached to internal surface of sleeve pipe by compression inflexibly, and lock ring 17 is descending to put in place, keeps instrument locking state together with lock dog 8.So far, whole bridging plug completes to set, give up.
When lower instrument reclaims bridging plug, recovery set being first all inserted in recovery neck 1, upper lifting pipe post, cuts off shear pin 6, lock dog 8 ejects and unlocks.Carrying in continuation, it is up that recovery neck 1 drive sets pushing cylinder 4, " packing element assembly " slowly resilience, and upper cone 20 drives dovetail draw-in groove 28 slips 23 to retract, and releases slips 23 grappling, deblocking recovery.
This programme compact conformation, connecting portion arranges assembling positioning datum and spline anti-rotation measure, reduces I& M difficulty.Slips 23 retraction mechanism uses novel dovetail draw-in groove 28 fit system, slips 23 nonrecoverable risk when effectively reducing bridging plug deblocking.Using three packing element seal form, reduce tool interior number of seals simultaneously, sealing reliability is higher.Lock dog 8 matches with lock ring 17, it is achieved locking state and unlocking function.Reclaiming the toroidal cavity between neck 1 and setting pushing cylinder and " > of uniqueness be set " type lip seals 2 sand controls, eliminates that cause reclaiming journey of beginning a new line on neck 1 because of sand setting not enough, it is impossible to the risk of deblocking.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvement or deformation, these improve or deformation also should be regarded as protection domain of the present utility model.
Claims (6)
1. a cable sets recoverable bridging plug, including reclaiming neck, discharging bolt, set pushing cylinder, mandrel, shear pin, tightening pin, lock dog, lead ring, packing element, spacer ring, lining, upper center tube, lock ring, central canal, upper cone, slip sleeve, slips, lower center tube, guide shoe, it is characterized in that: release bolt is threadeded successively with mandrel, lower center tube, guide shoe, and guide shoe is fixed by tightening pin with lower center tube threaded connection place；Bottom slip sleeve, inner spline groove coordinates with lower center tube external spline, is adjacent to guide shoe upper surface；Slips is 4, circumferencial direction is evenly arranged in slip sleeve, the upper end dovetail draw-in groove of slips snaps in the dovetail fin of upper cone, is slidably matched therewith, the lower end of slips is slidably matched with slip sleeve base inclined-plane, and 4 shear pins that upper cone threaded upper ends connects lead ring, lower end is evenly arranged by circumferencial direction with slip sleeve are connected；Central canal bottom and lower center tube are bonded, and central canal top is to threaded with upper center tube, and 3 lock dogs that upper center tube is evenly arranged by circumferencial direction with mandrel are fixed；The external thread rotary of lock ring, in lining, is fixed by screw, under the inner ring screw thread free state of lock ring, is positioned at central canal upper smooth cylindrical；Lining lower end cylindrical has card key at 1, is stuck in upper cone draw-in groove, and the connection of lining threaded upper ends sets pushing cylinder；Packing element is divided into upper, middle and lower three joint, is provided with a spacer ring between every two joint packing elements, and packing element and spacer ring are all directly sleeved on outside lining；Reclaim neck and set pushing cylinder, upper center tube is fixed together with shear pin respectively, and the bottom inner circle reclaiming neck is enclosed within upper center tube lock dog installation site, and end face withstands on lining upper end.
A kind of cable the most according to claim 1 sets recoverable bridging plug, it is characterised in that: the dovetail draw-in groove bevel angle α of slips is 15～45 °, and dovetail draw-in groove cross section β angle is 15～85 °.
A kind of cable the most according to claim 2 sets recoverable bridging plug, it is characterized in that: slips flank designs spacing wing, spacing wing One-sided Widths is 1mm≤H-L≤10mm, spacing wing inside and outside circle is arc surface, inner arc surface R1 is than the bridging plug big 0 ~ 10mm of lower center tube outside diameter, exterior arc surface R2 0 ~ 10mm less than circular diameter in slip sleeve.
A kind of cable the most according to claim 1 sets recoverable bridging plug, it is characterized in that: the lock dog arranged between mandrel and central canal, being evenly arranged at circumferencial direction, number is 2～6 pieces, lock dog bottom chamfer face coordinates face angle a to be 15～45 ° with mandrel, and is slidably matched for ramp type.
A kind of cable the most according to claim 1 sets recoverable bridging plug, it is characterised in that: reclaim neck top and use thread form angle 60～the buttless thread of 80 °.
A kind of cable the most according to claim 1 sets recoverable bridging plug, it is characterised in that: by reclaiming neck, unidirectional " > is set in setting the toroidal cavity that pushing cylinder is constituted " type lip envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620104186.XU CN205532468U (en) | 2016-02-02 | 2016-02-02 | But cable is sat and is sealed recovery type bridging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620104186.XU CN205532468U (en) | 2016-02-02 | 2016-02-02 | But cable is sat and is sealed recovery type bridging plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532468U true CN205532468U (en) | 2016-08-31 |
Family
ID=56776454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620104186.XU Withdrawn - After Issue CN205532468U (en) | 2016-02-02 | 2016-02-02 | But cable is sat and is sealed recovery type bridging plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545251A (en) * | 2016-02-02 | 2016-05-04 | 四机赛瓦石油钻采设备有限公司 | Recoverable bridge plug for cable setting |
| CN110145270A (en) * | 2019-04-23 | 2019-08-20 | 中石化石油工程技术服务有限公司 | Slip assemblies and bridge plug |
-
2016
- 2016-02-02 CN CN201620104186.XU patent/CN205532468U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545251A (en) * | 2016-02-02 | 2016-05-04 | 四机赛瓦石油钻采设备有限公司 | Recoverable bridge plug for cable setting |
| CN110145270A (en) * | 2019-04-23 | 2019-08-20 | 中石化石油工程技术服务有限公司 | Slip assemblies and bridge plug |
| CN110145270B (en) * | 2019-04-23 | 2021-07-20 | 中石化石油工程技术服务有限公司 | Bridge plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20181102 |
|
| AV01 | Patent right actively abandoned |