CN206360680U - A kind of double-throw ball blocking packer - Google Patents
A kind of double-throw ball blocking packer Download PDFInfo
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- CN206360680U CN206360680U CN201720005664.6U CN201720005664U CN206360680U CN 206360680 U CN206360680 U CN 206360680U CN 201720005664 U CN201720005664 U CN 201720005664U CN 206360680 U CN206360680 U CN 206360680U
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Abstract
The utility model provides a kind of double-throw ball blocking packer, including top connection, lock claw, lock tube, packing element center-pole, solves seal ring, upper overcoat, packing element central tube, upper press ring, sets shear pin, packing element, lower pressure ring, connector, lower center tube, upper piston set, piston, lower pressure-bearing body, lower piston set, adjustment ring, sliding sleeve shell, two-stage sliding sleeve.The double-throw ball blocking packer, can not be pulled out of hole using double sliding sleeves and carry out pitching leak stopping twice, so as to increase the successful probability of leak stopping, reduced labor strength, saved drilling time and cost.The mechanical locking arrangement fastened using lock claw and lock tube, locking is safe and reliable；Promoted using double-stage hydraulic piston cylinder, effectively reduce the thrust promoted required for piston.
Description
Technical field
The utility model belongs to downhole operation equipment technical field, and in particular to a kind of double-throw ball blocking packer.
Background technology
Gansu Province Dong Luohe groups, extension group of pacifying the border region, Liu family's ditch group leakage take place frequently, and have had a strong impact on normal wellbore construction.Due to
Open hole formation barometric gradient changes greatly, and stratum water is enlivened in addition, and conventional squeeze seal leak stopping back pressure is in well head so that most of leak stopping material
Material or cement mortar can not be efficiently entering drop ply, carry out leak stopping again, it is necessary to pull out of hole so as to reduce leak stopping success rate, increase workman
Labor intensity, increase drilling time and cost.
Utility model content
The purpose of this utility model is that the above mentioned problem for overcoming prior art to exist is insulated there is provided a kind of double-throw ball leak stopping
Device, the need for meeting plugging operations.
Therefore, the utility model provide a kind of double-throw ball blocking packer, including top connection, below top connection
Provided with the upper center tube being connected with top connection in upper overcoat, the upper overcoat, provided with lock between the upper overcoat and upper center tube
Deblocking device, packing element center-pole, the deblocking device and locking system are arranged with outside locking apparatus, the upper center tube from top to bottom
Coordinate, the packing element center-pole upper end is connected with locking system, is arranged with outside the packing element center-pole above and below packing element, the packing element
End is respectively equipped with upper press ring, lower pressure ring, and the upper press ring is fixedly connected with upper overcoat；
The packing element lower end is connected with piston bush, and upper center tube lower end is connected with the lower center tube in piston bush, institute
State and piston, lower pressure-bearing body are arranged with lower center tube, the piston is connected with piston bush, the lower pressure-bearing body is below piston
And be connected with lower center tube, the lower center tube is provided with the first hole, and first hole is below piston, the lower center tube
Lower end is sequentially connected with adjustment ring, big ball sliding sleeve, the adjustment ring connect with piston bush lower end and between have runner, the big ball is slided
Bead sliding sleeve is connected with set, the bead sliding sleeve lower end is provided with the hole pipe and guide shoe being sequentially connected.
The locking system is made up of the lock claw being set on upper center tube and the lock tube below lock claw, the lock tube
Lower end is connected with packing element center-pole threaded upper ends, and the decapsulation is set to solution seal ring, and the deblocking is located on upper center tube and lock tube
Between.
The upper press ring is provided with the centre bore vertical with packing element center-pole, the centre bore provided with anti-setting pin.
The upper center tube and lower center tube are connected by connector, and the upper center tube is provided with the second hole, described the
Two hole positions are between lower pressure ring and connector.
The piston bush by upper piston set and lower piston set constitutes, the upper piston set is sleeved on connector, it is described under
Piston bush is sleeved on lower pressure-bearing body, and the piston is connected with lower piston external threading, the lower pressure-bearing body and lower center tube screw thread
Connection.
The beneficial effects of the utility model are：
This double-throw ball blocking packer that the utility model is provided, can not be pulled out of hole using double sliding sleeves and carry out pitching twice
Leak stopping, so as to increase the successful probability of leak stopping, reduces labor strength, saves drilling time and cost.
The mechanical locking arrangement fastened using lock claw and lock tube, locking is safe and reliable；Promoted using double-stage hydraulic piston cylinder,
Effectively reduce the thrust required for promotion piston.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is the utility model superstructure schematic diagram；
Fig. 2 is the utility model central structure schematic diagram；
Fig. 3 is the utility model substructure schematic diagram.
In figure：1st, top connection；2nd, lock claw；3rd, seal ring is solved；4th, upper center tube；5th, upper overcoat；6th, lock tube；7th, packing element center
Bar；8th, upper press ring；9th, setting pin is prevented；10th, packing element；11st, lower pressure ring；12nd, connector；13rd, lower center tube；14th, upper piston set；
15th, piston；16th, lower pressure-bearing body；17 lower piston sets；18th, adjustment ring；19th, big ball sliding sleeve shell；20th, big ball；21st, big ball sliding sleeve；
22nd, big ball sliding sleeve pin；23rd, bead sliding sleeve shell；24th, bead；25th, bead sliding sleeve pin；26th, bead sliding sleeve；27th, Kong Guan；28、
Guide shoe；29th, the first hole；30th, the second hole.
Embodiment
Embodiment 1：
Present embodiments provide a kind of double-throw ball blocking packer, including top connection 1, located at the upper outer of the lower section of top connection 1
Provided with the upper center tube 4 being connected with top connection 1 in set 5, the upper overcoat 5, it is provided between the upper overcoat 5 and upper center tube 4
Locking system, the upper center tube 4 is outer to be arranged with deblocking device, packing element center-pole 7, the deblocking device and locking from top to bottom
Device coordinates, and the upper end of packing element center-pole 7 is connected with locking system, and packing element 10 is arranged with outside the packing element center-pole 7, described
The upper and lower side of packing element 10 is respectively equipped with upper press ring 8, lower pressure ring 11, and the upper press ring 8 is fixedly connected with upper overcoat 5；
The lower end of packing element 10 is connected with piston bush, and the lower end of upper center tube 4 is connected with the lower center tube in piston bush
13, piston 15, lower pressure-bearing body 16 are arranged with the lower center tube 13, and the piston 15 is connected with piston bush, the lower pressure-bearing
Body 16 is connected located at the lower section of piston 15 and with lower center tube 13, and the lower center tube 13 is provided with the first hole 29, first hole
29 located at the lower section of piston 15, and the lower end of lower center tube 13 is sequentially connected with adjustment ring 18, big ball sliding sleeve 21, the adjustment ring 18 with
Piston bush lower end connect and between have and be connected with runner, the big ball sliding sleeve 21 under bead sliding sleeve 26, the bead sliding sleeve 26
End is provided with the hole pipe 27 and guide shoe 28 being sequentially connected.
The course of work：By ground pitching turn on pump, leak stopping is starched enters lower center tube 13 by the second hole 30 of lower center tube 13
Between piston bush, so as to promote piston 15 to move axially upward, piston 15 drives piston bush, makes lower pressure ring 11 in pressure
Moved up under effect, and then promote the central tube of packing element 10, lock locking system, because upper press ring 8 is motionless, lower pressure ring 11 is pushed away
The dynamic swell of packing element 10 is fitted with the borehole wall to be realized setting, insulates the borehole wall above and below drop ply, pressure destroys cunning when continuing to increase to certain value
Set forms fluid course, and leak stopping slurry enters drop ply, and leak stopping above carries the certain suspending weight of drilling tool and completes deblocking by unsealing device after terminating,
Packing element 10 resets, then pitching turn on pump repeats said process and shaken off, and the present embodiment can carry out two in the case where not pulling out of hole
Secondary leak stopping.Wherein, lower pressure-bearing body 16 constitutes plunger shaft with piston 15.Adjustment ring 18 connect with piston bush lower end and between have runner
Act as deblocking when adjustment ring 18 is formed with piston bush cavity in liquid quickly flow out, prevent pressure balance from causing packing element
10 and piston 15 can not reset.
Embodiment 2：
On the basis of embodiment 1, a kind of double-throw ball blocking packer as shown in Figure 1 is present embodiments provided, it is described
Lock tube 6 of the locking system by the lock claw 2 that is set on upper center tube 4 and located at the lower section of lock claw 2 is constituted, the lower end of lock tube 6 with
The threaded upper ends of packing element center-pole 7 are connected, and the decapsulation is set to solution seal ring 3, the solution seal ring 3 located at upper center tube 4 and lock tube 6 it
Between.
The course of work：By ground pitching turn on pump, lower pressure ring 11 and piston 15 are moved up under the effect of the pressure, and then
The central tube of packing element 10 is promoted, the central tube of packing element 10 drives lock tube 6 to move forward and is interlocked with lock claw 2.
After leak stopping terminates, drilling tool is above carried, drives top connection 1 and upper center tube 4 to move up, upper center tube 4 is driven in solution seal ring 3
Move, solution seal ring 3 forces lock claw 2 and lock tube 6 to be mutually disengaged, and lower pressure ring 11 and piston 15 are forced in the presence of the screen resilience of packing element 10
Reset, drive packing element center-pole 7 and lock tube 6 to reset while lower pressure ring 11 and piston 15 reset.
In the present embodiment, the upper press ring 8 is provided with the centre bore vertical with packing element center-pole 7, the centre bore and is provided with
Prevent setting pin 9.
The mechanical locking arrangement that the present embodiment is fastened using lock claw 2 and lock tube 6, locking is safe and reliable.
Embodiment 3：
On the basis of embodiment 2, a kind of double-throw ball leak stopping packing as shown in Figure 1, Figure 2, Figure 3 shows is present embodiments provided
Device, the upper center tube 4 and lower center tube 13 are connected by connector 12, and the upper center tube 4 is provided with the second hole 30, described
Second hole 30 is located axially between lower pressure ring 11 and connector 12.
Finish ball be pumped into leak stopping slurry when, liquid is entered by the first hole 29 of lower center tube 13, so as to promote piston 15
Move axially upwards to form first piston chamber, while leak stopping slurry enters pressure ring 11 and company under people by the second hole 30 of upper center tube 4
Between junctor 12, second plunger shaft is formed, two-diameter piston 15 is formed, the thrust promoted required for piston 15 is effectively reduced.
Implementation process, as shown in Figure 3：
Setting state for the first time：Bead 24 is first thrown, turn on pump again is finished after bead 24, when turn on pump to pressure is to 4-6 MPas, under
Pressure ring 11 and piston 15 are moved up under the effect of the pressure, and then promote the central tube of packing element 10, and the central tube of packing element 10 drives lock
Set 6 is moved up to be interlocked with lock claw 2, while lower pressure ring 11 and piston 15 are moved forward under the effect of the pressure, due to
Upper press ring 8 is motionless, and lower pressure ring 11 promotes the swell of packing element 10 to be fitted with the borehole wall and realizes setting, the borehole wall above and below packing drop ply.Continue to suppress
It is depressed into the bead sliding sleeve pin 25 being set with 10 MPas or so, the bead sliding sleeve shell 23 of bead sliding sleeve 26 to be cut, bead sliding sleeve
26 and bead 24 simultaneously fall into guide shoe 28.
Unset state：After leak stopping terminates, drilling tool is above carried, drives top connection 1 and upper center tube 44 to move up, the band of upper center tube 4
Dynamic solution seal ring 3 is moved up, and solution seal ring 3 forces lock claw 2 and lock tube 6 to be mutually disengaged, and forces and pushes in the presence of the screen resilience of packing element 10
Ring 11 and piston 15 reset, and drive packing element center-pole 7 and lock tube 6 to reset while lower pressure ring 11 and piston 15 reset.
Second of setting state：Big ball 20 is thrown in the case where not pulling out of hole, turn on pump, turn on pump to pressure again is finished after big ball 20
During to 4-6 MPas, lower pressure ring 11 and piston 15 are moved up under the effect of the pressure, and then promote the central tube of packing element 10, packing element
10 central tubes drive lock tube 6 to move up and are interlocked with lock claw 2, in lower pressure ring 11 and piston 15 under the effect of the pressure to reach
While dynamic, because upper press ring 8 is motionless, lower pressure ring 11 promotes the swell of packing element 10 to be fitted with the borehole wall, continues to build the pressure to 10 MPas of left sides
The right side, cuts the big ball sliding sleeve pin 22 being sleeved on the big ball sliding sleeve shell 19 of big ball sliding sleeve 21, big sliding sleeve and big ball 20 fall simultaneously
Enter guide shoe 28.
In the present embodiment, bead sliding sleeve 26 and big ball sliding sleeve 21 are existing product, big ball sliding sleeve 21 and bead sliding sleeve 26
Outside dimension is identical, and the big internal diameter of ball sliding sleeve 21 is 42mm, and the internal diameter of bead sliding sleeve 26 is 35mm, a diameter of 45mm of big ball 20, bead
24 a diameter of 38mm.Piston bush is made up of upper piston set 14 and lower piston set 17, and the upper piston set 14 is sleeved on connector 12
On, the lower piston set 17 is sleeved on lower pressure-bearing body 16, and the piston 15 is threadedly coupled with lower piston set 17, the lower pressure-bearing
Body 16 is threadedly coupled with lower center tube 13.
The structure that various embodiments above is not described in detail belongs to the common knowledge of the industry, does not describe one by one here.
Exemplified as above is only for example, not constituting to protection domain of the present utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within protection scope of the present invention.
Claims (5)
1. a kind of double-throw ball blocking packer, it is characterised in that：Including top connection（1）, located at top connection（1）The upper overcoat of lower section
（5）, the upper overcoat（5）Inside it is provided with and top connection（1）The upper center tube of connection（4）, the upper overcoat（5）With upper center tube
（4）Between be provided with locking system, the upper center tube（4）It is outer to be arranged with deblocking device, packing element center-pole from top to bottom（7）, institute
State deblocking device with locking system to coordinate, the packing element center-pole（7）Upper end is connected with locking system, the packing element center-pole
（7）It is arranged with packing element outside（10）, the packing element（10）Upper and lower side is respectively equipped with upper press ring（8）, lower pressure ring（11）, the upper press ring
（8）With upper overcoat（5）It is fixedly connected；
The packing element（10）Lower end is connected with piston bush, upper center tube（4）Lower end is connected with the lower center tube in piston bush
（13）, the lower center tube（13）On be arranged with piston（15）, lower pressure-bearing body（16）, the piston（15）It is connected with piston bush,
The lower pressure-bearing body（16）Located at piston（15）Lower section and and lower center tube（13）Connection, the lower center tube（13）Provided with the
One hole（29）, first hole（29）Located at piston（15）Lower section, the lower center tube（13）Lower end is sequentially connected with adjustment ring
（18）, big ball sliding sleeve（21）, the adjustment ring（18）Connect with piston bush lower end and between have runner, the big ball sliding sleeve（21）
Under be connected with bead sliding sleeve（26）, the bead sliding sleeve（26）Lower end is provided with the hole pipe being sequentially connected（27）And guide shoe（28）.
2. a kind of double-throw ball blocking packer according to claim 1, it is characterised in that：The locking system is by being set in
Upper center tube（4）On lock claw（2）With located at lock claw（2）The lock tube of lower section（6）Composition, the lock tube（6）In lower end and packing element
Core bar（7）Threaded upper ends are connected, and the decapsulation is set to solution seal ring（3）, the solution seal ring（3）Located at upper center tube（4）And lock tube
（6）Between.
3. a kind of double-throw ball blocking packer according to claim 1, it is characterised in that：The upper press ring（8）Provided with
Packing element center-pole（7）Provided with anti-setting pin in vertical centre bore, the centre bore（9）.
4. a kind of double-throw ball blocking packer according to claim 1, it is characterised in that：The upper center tube（4）With under
Central tube（13）Pass through connector（12）Connection, the upper center tube（4）It is provided with the second hole（30）, second hole（30）Position
In lower pressure ring（11）With connector（12）Between.
5. a kind of double-throw ball blocking packer according to claim 4, it is characterised in that：The piston bush is by upper piston set
（14）With lower piston set（17）Composition, the upper piston set（14）It is sleeved on connector（12）On, the lower piston set（17）Set
Mounted in lower pressure-bearing body（16）On, the piston（15）With lower piston set（17）Threaded connection, the lower pressure-bearing body（16）In lower
Heart pipe（13）Threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720005664.6U CN206360680U (en) | 2017-01-04 | 2017-01-04 | A kind of double-throw ball blocking packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720005664.6U CN206360680U (en) | 2017-01-04 | 2017-01-04 | A kind of double-throw ball blocking packer |
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| Publication Number | Publication Date |
|---|---|
| CN206360680U true CN206360680U (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720005664.6U Active CN206360680U (en) | 2017-01-04 | 2017-01-04 | A kind of double-throw ball blocking packer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630210A (en) * | 2019-10-16 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Loess layer leakage-proof plugging tool and use method thereof |
| CN115749671A (en) * | 2023-01-06 | 2023-03-07 | 中石化西南石油工程有限公司 | Constant-pressure trapping and leaking stoppage tool and method for drilling |
| CN117468888A (en) * | 2023-12-27 | 2024-01-30 | 中国石油集团川庆钻探工程有限公司 | Underground airtight plugging tool and plugging method |
-
2017
- 2017-01-04 CN CN201720005664.6U patent/CN206360680U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630210A (en) * | 2019-10-16 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Loess layer leakage-proof plugging tool and use method thereof |
| CN110630210B (en) * | 2019-10-16 | 2023-12-01 | 中国石油天然气集团有限公司 | Leakage-proof plugging tool for yellow soil layer and using method thereof |
| CN115749671A (en) * | 2023-01-06 | 2023-03-07 | 中石化西南石油工程有限公司 | Constant-pressure trapping and leaking stoppage tool and method for drilling |
| CN117468888A (en) * | 2023-12-27 | 2024-01-30 | 中国石油集团川庆钻探工程有限公司 | Underground airtight plugging tool and plugging method |
| CN117468888B (en) * | 2023-12-27 | 2024-03-19 | 中国石油集团川庆钻探工程有限公司 | Underground airtight plugging tool and plugging method |
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