CN105019855B - Packer - Google Patents
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- CN105019855B CN105019855B CN201510473359.5A CN201510473359A CN105019855B CN 105019855 B CN105019855 B CN 105019855B CN 201510473359 A CN201510473359 A CN 201510473359A CN 105019855 B CN105019855 B CN 105019855B
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Abstract
The present invention relates to a kind of small-diameter thermal recovery packer.Including hermetic unit and anchoring device, hermetic unit is threadedly coupled with anchoring device.Relative to prior art, the packer is divided into upper and lower two parts by the present invention, and bottom is fixed using anchor tooth, by increasing capacitance it is possible to increase packing element and the stability after casing-contact, is prevented packing element because unstable by down-hole pressure, is caused position to offset；Mode is set using described above, pressure can be set with minimum, seal packing element；, can be quick using locking mechanism described above, accurate self-locking, and unseal simply, only need upper lifting pipe post to unlock；Operating efficiency can be improved using above structure, increase sets success rate, reduces operating expenses.
Description
Technical field
The present invention relates to a kind of small-diameter thermal recovery packer.
Background technology
The more rounds of thick oil thermal extraction are handled up, and rear enclosure damage is serious, and the lower secondary cementing technology of small casing is that casing damaged well repairs main work
Skill technology, this renovation technique can cause pit shaft latus rectum to diminish, and exhaust pipe passage is 161.7 millimeters, after the secondary cementing technology of small casing
Latus rectum is 111.96 millimeters.Pit shaft latus rectum diminishes, it is untouched on to adopt lower machine plugging packer be Y241-152 thermal packers, most
Big external diameter is 152 millimeters, has been not suitable with latus rectum requirement after the secondary cementing technology of small casing, needs supporting corresponding minor diameter thermal recovery envelope
Every device, to meet that pit shaft latus rectum diminishes after repairing set, instrument of going into the well also needs the needs to diminish therewith.
The content of the invention
The technical problem to be solved in the present invention is：To solve the above problems, provide a kind of packer.
The purpose of the present invention is realized in the following manner：
Packer, including hermetic unit and anchoring device, hermetic unit are threadedly coupled with anchoring device；Hermetic unit is located at
The top of anchoring device, hermetic unit and anchoring device are all hollow structure, are both provided with locking on hermetic unit and anchoring device
Tight mechanism and tripper；During input, pressure, when pressure reaches to a certain degree, the lock of anchoring device are injected from hermetic unit
Tight mechanism II is locked, and the retaining mechanism I of hermetic unit is locked afterwards, and during salvaging, the tripper I of hermetic unit solves open locking machine
Structure I, the tripper II of anchoring device untie retaining mechanism II.
Hermetic unit includes joint I 1, and the internal thread of joint I 1 is threadedly coupled with the external screw thread of central tube I 11, the upper end of connecting cylinder I 4
The outside of joint I 1 is connected to by slider I 2, slider I 2 is connected on joint I 1 by screw 22, and the inner side of connecting cylinder I 4 is machined with
Boss I, lock claw I 3 are enclosed on the outside of central tube I 11, and lock claw I 3 between joint I 1 and boss I, on outside process by central tube I 11
Have a boss II, solution lock ring I 5 and the upper-end contact of boss II, the lower end of connecting cylinder I 4 are connected with the threaded upper ends of joint II 8, joint II 8 and
Packing element sleeve pipe 7 is provided between central tube II 17, the upper end of packing element sleeve pipe 7 is threadedly coupled with lock ring I 6, the lower end of joint II 8 and wedging
Body 9 is threadedly coupled, and sealing ring I 23, the wedging lower end of body 9 and packing element sleeve pipe 7 are provided between the middle part of wedging body 9 and packing element sleeve pipe 7
Contact, packing element 10 are enclosed on wedging body 9 outside, and the lower end of packing element sleeve pipe 7 be threadedly coupled with joint III 13, wedging body 12 internal threads of set and
The upper external screw thread of joint III 13 is threadedly coupled, and the lower end of joint III 13 is threadedly coupled with sleeve I 15, and the lower end of central tube I 11 is with being connected
Cover the connection of I 16 threaded upper ends, adapter sleeve I 16）Between central tube I 11 and sleeve I 15, piston I 14 is enclosed on central tube I 11
On, and between joint III 13 and adapter sleeve I 16, the inner side of piston I 14 is machined with annular groove, corresponding positions on central tube I 11
Put and be evenly equipped with through hole I, the lower end of adapter sleeve I 16 is connected with the threaded upper ends of central tube II 17, the lower end of central tube II 17 and joint IV 21
Threaded connection, the outside of joint IV 21 are threadedly coupled with the lower end of sleeve II 20, and piston II 19 is located at sleeve II 20 and central tube II 17
Between, the upper end of sleeve II 20 is connected with piston II 19 by shear pin II, and the lower end of sleeve I 15 is connected with piston II 19 by shear pin I 18
Connect, central tube II 17 is radially evenly equipped with through hole II, and through hole is between piston II 19 and joint IV 21.
Retaining mechanism I includes lock claw I 3 and lock ring I 6, and during locking, lock ring I 6 is sleeved in lock claw I 3.
Tripper I is solution lock ring I 5, and during unblock, lock claw I 3 departs from lock ring I 6 under the pressure of solution lock ring I 5.
Anchoring device includes joint V 24, and the internal thread of joint V 24 is threadedly coupled with the external screw thread of central tube III 30, connecting cylinder
II 26 are connected by sliding block II 25 with joint V 24, and sliding block II 25 is connected on joint V 24 by pin 44, connecting cylinder II 26
Inner side is machined with boss III, and lock claw II 27 is enclosed on central tube III 30, lock claw II 27 between joint V 24 and boss III, in
Be machined with boss IV on heart pipe III 30, solution lock ring II 28 be threadedly coupled with central tube III 30 and with the upper contact of boss IV, company
The lower end of connect cylinder II 26 is threadedly coupled with anchor tooth main body 32, and connecting tube 31 is provided between anchor tooth main body 32 and central tube III 30, even
The upper end of adapter 31 is threadedly coupled with lock ring II 29, and the lower end of connecting tube 31 is threadedly coupled with anchor tooth seat 34, anchor tooth main body 32 and anchor tooth
Anchor tooth 33 is provided between seat 34, the lower end of anchor tooth seat 34 is connected with the upper end of cylinder barrel I 37 by shear pin III, the lower end of cylinder barrel I 37 and work
Fill in III 40 to connect by shear pin IV, piston IV 36 and adapter sleeve II 38, piston IV are provided between piston III 40 and anchor tooth seat 34
Sealing ring II 45 is cased with 36, the upper end of adapter sleeve II 38 is threadedly coupled with central tube III 30, and piston IV 36 is enclosed on central tube III 30
On, the inner side of piston IV 36 is provided with annular groove II, and central tube III 30 is being evenly equipped with through hole III with the relevant position of annular groove II, connection
Cover II 38 lower ends to be threadedly coupled with central tube IV 39, piston III 40 is enclosed on central tube IV 39, and cylinder barrel II 41 is enclosed on piston III 40
Above and by shear pin V connect, the lower end of cylinder barrel II 41 is threadedly coupled with joint VI 42, and the radial direction of central tube IV 39 is provided with through hole
IV, between piston III 40 and joint VI 42, the lower end of joint VI 42 is threadedly coupled through hole IV with plug 43.
Retaining mechanism II includes lock claw II 27 and lock ring II 29, and during locking, lock ring II 29 is sleeved in lock claw II 27.
Tripper II is solution lock ring II 28, and during unblock, lock claw II 27 departs from lock under the pressure effect of solution lock ring II 28
Ring II 29.
The wedging minor diameter of body 9 and major diameter transition position are the conical surface；On described connecting cylinder I 4 and the wall of connecting cylinder II 26
All it is provided with through hole.
The external screw thread of described lock claw I 3 is with the internal thread tooth form of lock ring I 6 on the contrary, the external screw thread of lock claw II 27 and lock ring II
29 internal thread tooth form is opposite.
Circumferentially face is having screw thread one end to be all uniformly provided with elongated slot for described lock claw I 3 and lock claw II 27, and form of thread is
Crest is to the left with horizontal line into 15 °~45 ° angles；The lock ring I 6 and the threaded one end tooth form of lock ring II 29 be crest to the right with
Horizontal line is into 15 °~45 ° angles.
Relative to prior art, the packer is divided into upper and lower two parts by the present invention, and bottom is fixed using anchor tooth, can
Increase packing element and the stability after casing-contact, prevent packing element because unstable by down-hole pressure, cause position to offset；Using
Described above sets mode, can set pressure with minimum, seal packing element；Using locking mechanism described above, energy
It is enough quick, accurate self-locking, and unseal simply, only need upper lifting pipe post to unlock；The present invention, it can be improved using above structure
Operating efficiency, increase set success rate, reduce operating expenses.
Brief description of the drawings
Fig. 1 is hermetic unit structural representation of the present invention.
Fig. 2 is anchoring device structural representation of the present invention.
Wherein, 1 is joint I；2 be slider I；3 be lock claw I；4 be connecting cylinder I；5 be solution lock ring I；6 be lock ring I；7 be glue
Jacket casing pipe；8 be joint II；9 be wedging body；10 be packing element；11 be central tube I；12 be wedging body set；13 be joint III；14 are
Piston I；15 be sleeve I；16 be adapter sleeve I；17 be central tube II；18 be shear pin I；19 be piston II；20 be sleeve II；21 are
Joint IV；22 be screw；23 be sealing ring I；24 be joint V；25 be sliding block II；26 be connecting cylinder II；27 be lock claw II；28
It is solution lock ring II；29 be lock ring II；30 be central tube III；31 be connecting tube；32 be anchor tooth main body；33 be anchor tooth；34 be anchor tooth
Seat；35 be shear pin；36 be piston IV；37 be cylinder barrel I；38 be adapter sleeve II；39 be central tube IV；40 be piston III；41 be cylinder
Cylinder II；42 be joint VI；43 be plug；44 be pin；45 be sealing ring II.
Embodiment
As Figure 1-Figure 2, packer, including hermetic unit and anchoring device, hermetic unit connect with anchoring device screw thread
Connect；Hermetic unit is located at the top of anchoring device, and hermetic unit and anchoring device are all hollow structure, hermetic unit and grappling dress
Put and be both provided with retaining mechanism and tripper；During input, pressure is injected from hermetic unit, when pressure reaches to a certain degree
When, the retaining mechanism II of anchoring device is locked, and the retaining mechanism I of hermetic unit is locked afterwards, during salvaging, the unblock of hermetic unit
Device I unties retaining mechanism I, and the tripper II of anchoring device unties retaining mechanism II.
Hermetic unit includes joint I 1, and the internal thread of joint I 1 is threadedly coupled with the external screw thread of central tube I 11, the upper end of connecting cylinder I 4
The outside of joint I 1 is connected to by slider I 2, slider I 2 is connected on joint I 1 by screw 22, and the inner side of connecting cylinder I 4 is machined with
Boss I, lock claw I 3 are enclosed on the outside of central tube I 11, and lock claw I 3 between joint I 1 and boss I, on outside process by central tube I 11
Have a boss II, solution lock ring I 5 and the upper-end contact of boss II, the lower end of connecting cylinder I 4 are connected with the threaded upper ends of joint II 8, joint II 8 and
Packing element sleeve pipe 7 is provided between central tube II 17, the upper end of packing element sleeve pipe 7 is threadedly coupled with lock ring I 6, the lower end of joint II 8 and wedging
Body 9 is threadedly coupled, and sealing ring I 23, the wedging lower end of body 9 and packing element sleeve pipe 7 are provided between the middle part of wedging body 9 and packing element sleeve pipe 7
Contact, packing element 10 are enclosed on wedging body 9 outside, and the lower end of packing element sleeve pipe 7 be threadedly coupled with joint III 13, wedging body 12 internal threads of set and
The upper external screw thread of joint III 13 is threadedly coupled, and the lower end of joint III 13 is threadedly coupled with sleeve I 15, and the lower end of central tube I 11 is with being connected
Cover the connection of I 16 threaded upper ends, adapter sleeve I 16）Between central tube I 11 and sleeve I 15, piston I 14 is enclosed on central tube I 11
On, and between joint III 13 and adapter sleeve I 16, the inner side of piston I 14 is machined with annular groove, corresponding positions on central tube I 11
Put and be evenly equipped with through hole I, the lower end of adapter sleeve I 16 is connected with the threaded upper ends of central tube II 17, the lower end of central tube II 17 and joint IV 21
Threaded connection, the outside of joint IV 21 are threadedly coupled with the lower end of sleeve II 20, and piston II 19 is located at sleeve II 20 and central tube II 17
Between, the upper end of sleeve II 20 is connected with piston II 19 by shear pin II, and the lower end of sleeve I 15 is connected with piston II 19 by shear pin I 18
Connect, central tube II 17 is radially evenly equipped with through hole II, and through hole is between piston II 19 and joint IV 21.
Retaining mechanism I includes lock claw I 3 and lock ring I 6, and during locking, lock ring I 6 is sleeved in lock claw I 3.
Tripper I is solution lock ring I 5, and during unblock, lock claw I 3 departs from lock ring I 6 under the pressure of solution lock ring I 5.
Anchoring device includes joint V 24, and the internal thread of joint V 24 is threadedly coupled with the external screw thread of central tube III 30, connecting cylinder
II 26 are connected by sliding block II 25 with joint V 24, and sliding block II 25 is connected on joint V 24 by pin 44, connecting cylinder II 26
Inner side is machined with boss III, and lock claw II 27 is enclosed on central tube III 30, lock claw II 27 between joint V 24 and boss III, in
Be machined with boss IV on heart pipe III 30, solution lock ring II 28 be threadedly coupled with central tube III 30 and with the upper contact of boss IV, company
The lower end of connect cylinder II 26 is threadedly coupled with anchor tooth main body 32, and connecting tube 31 is provided between anchor tooth main body 32 and central tube III 30, even
The upper end of adapter 31 is threadedly coupled with lock ring II 29, and the lower end of connecting tube 31 is threadedly coupled with anchor tooth seat 34, anchor tooth main body 32 and anchor tooth
Anchor tooth 33 is provided between seat 34, the lower end of anchor tooth seat 34 is connected with the upper end of cylinder barrel I 37 by shear pin III, the lower end of cylinder barrel I 37 and work
Fill in III 40 to connect by shear pin IV, piston IV 36 and adapter sleeve II 38, piston IV are provided between piston III 40 and anchor tooth seat 34
Sealing ring II 45 is cased with 36, the upper end of adapter sleeve II 38 is threadedly coupled with central tube III 30, and piston IV 36 is enclosed on central tube III 30
On, the inner side of piston IV 36 is provided with annular groove II, and central tube III 30 is being evenly equipped with through hole III with the relevant position of annular groove II, connection
Cover II 38 lower ends to be threadedly coupled with central tube IV 39, piston III 40 is enclosed on central tube IV 39, and cylinder barrel II 41 is enclosed on piston III 40
Above and by shear pin V connect, the lower end of cylinder barrel II 41 is threadedly coupled with joint VI 42, and the radial direction of central tube IV 39 is provided with through hole
IV, between piston III 40 and joint VI 42, the lower end of joint VI 42 is threadedly coupled through hole IV with plug 43.
Retaining mechanism II includes lock claw II 27 and lock ring II 29, and during locking, lock ring II 29 is sleeved in lock claw II 27.
Tripper II is solution lock ring II 28, and during unblock, lock claw II 27 departs from lock under the pressure effect of solution lock ring II 28
Ring II 29.
The wedging minor diameter of body 9 and major diameter transition position are the conical surface；On described connecting cylinder I 4 and the wall of connecting cylinder II 26
All it is provided with through hole.
The external screw thread of described lock claw I 3 is with the internal thread tooth form of lock ring I 6 on the contrary, the external screw thread of lock claw II 27 and lock ring II
29 internal thread tooth form is opposite.
Circumferentially face is having screw thread one end to be all uniformly provided with elongated slot for described lock claw I 3 and lock claw II 27, and form of thread is
Crest to the left with horizontal line into 15 °~45 ° angles, the size of angle can be 15 °, 18 °, 20 °, 23 °, 25 °, 28 °, 30 °,
33 °, 35 °, 38 °, 40 °, 43 ° or 45 °.
The lock ring I 6 and the threaded one end tooth form of lock ring II 29 are crest to the right with horizontal line into 15 °~45 ° angles, folder
The size at angle can be 15 °, 17 °, 20 °, 23 °, 25 °, 28 °, 30 °, 33 °, 35 °, 38 °, 40 °, 43 ° or 45 °.
Course of work during present invention input：Fluid pressure is incoming from joint I 1, by central tube I 11, central tube II 17, connects
First IV 21, joint V 24, central tube III 30, central tube IV 39, joint IV 42 arrive plug 43, and plug 43 shuts bottom, center
Channel inner pressure starts to increase, pressure from the through hole I of central tube I 11, the through hole II of central tube II 17, central tube III 30 through hole
III and the through hole IV of central tube IV 39 flow out, pressure is applied to piston I 14, piston II 19, piston IV 36 and piston III 40；Piston
IV 36 and piston III 40 move first, piston III 40 cuts shear pin V and promotes cylinder barrel I 37 and anchor tooth seat 34 to move, and anchor tooth seat 34 pushes away
Dynamic connecting tube 31, lock ring II 29 move to the direction of lock claw II 27 together, while anchor tooth 33 moves on the conical surface of anchor tooth main body 32,
When lock ring II 29 and lock claw II 27 are fully engaged against, anchor tooth 33 tightly fits together with sleeve, completes to fix；Now pressure after
Continuous increase, piston II 19 and piston I 14 move first, and piston II 19 cuts shear pin II and promotes sleeve I 15, joint III 13 and wedging
The motion of body set 12, joint III 13 promotes packing element sleeve pipe 7 and lock ring I 6 to be moved together to the direction of lock claw I 3, while packing element 10 is being wedged
Moved on the conical surface of body 9, when lock ring I 6 is fully engaged against with lock claw I 3, packing element 10 tightly fits together with sleeve, has worked
Into.
Course of work during salvaging：Install and set on joint I 1, carry joint I 1 upwards, joint I 1 drive central tube I 11,
Adapter sleeve I 16, central tube II 17, joint IV 21, joint V 24, central tube III 30, adapter sleeve II 38, central tube IV 39, joint
VI 42, plug 43 moves upwards, and the boring ratio slider I 2 coordinated on connecting cylinder I 4 with slider I 2 is big, on connecting cylinder II 26 with sliding block II
The 25 boring ratio sliding blocks II 25 coordinated are big, and connecting cylinder I 4 and connecting cylinder II 26 can not move upwards simultaneously, and solution lock ring I 5 follows center
Pipe I 11 moves upwards, and solution lock ring II 28 follows central tube III 30 to move upwards, because lock claw I 3 and lock claw II 27 are all circumferentially faces
There is screw thread one end to be all uniformly provided with elongated slot, diameter is collapsible, and the diameter in the presence of lock ring I 5 is solved of lock claw I 3 diminishes and locked
Ring I 6 departs from, and the diameter in the presence of lock ring II 28 is solved of lock claw II 27 diminishes to be departed from lock ring II 29, and packing element 10 and anchor tooth 33 lose
Go axial compressive force to produce resilience, depart from sleeve, packer, which is smoothly salvaged, to be come.
Claims (9)
1. packer, including hermetic unit and anchoring device, it is characterised in that：Hermetic unit is threadedly coupled with anchoring device；It is close
Envelope part is located at the top of anchoring device, and hermetic unit and anchoring device are all hollow structure, on hermetic unit and anchoring device
It is both provided with retaining mechanism and tripper；During input, pressure, when pressure reaches to a certain degree, anchor are injected from hermetic unit
The retaining mechanism II for determining device is locked, and the retaining mechanism I of hermetic unit is locked afterwards, during salvaging, the tripper I of hermetic unit
Retaining mechanism I is untied, the tripper II of anchoring device unties retaining mechanism II；Hermetic unit includes joint I（1）, joint I
（1）Internal thread and central tube I（11）External screw thread is threadedly coupled, connecting cylinder I（4）Upper end passes through slider I（2）It is connected to joint I（1）
Outside, slider I（2）Pass through screw（22）It is connected to joint I（1）On, connecting cylinder I（4）Inner side is machined with boss I, lock claw I（3）
It is enclosed on central tube I（11）Outside, lock claw I（3）Positioned at joint I（1）Between boss I, central tube I（11）It is machined with outside convex
Platform II, solve lock ring I（5）With the upper-end contact of boss II, connecting cylinder I（4）Lower end and joint II（8）Threaded upper ends connect, joint II
（8）With central tube II（17）Between be provided with packing element sleeve pipe（7）, packing element sleeve pipe（7）Upper end and lock ring I（6）Threaded connection, joint
Ⅱ（8）Lower end and wedging body（9）Threaded connection, wedge body（9）Middle part and packing element sleeve pipe（7）Between be provided with sealing ring I（23）,
Wedge body（9）Lower end and packing element sleeve pipe（7）Contact, packing element（10）It is enclosed on wedging body（9）Outside, packing element sleeve pipe（7）Lower end is with connecing
First III（13）Threaded connection, wedge body set（12）Internal thread and joint III（13）Upper external screw thread is threadedly coupled, joint III（13）
Lower end and sleeve I（15）Threaded connection, central tube I（11）Lower end and adapter sleeve I（16）Threaded upper ends connect, adapter sleeve I（16）
Positioned at central tube I（11）With sleeve I（15）Between, piston I（14）It is enclosed on central tube I（11）On, and it is located at joint III（13）With
Adapter sleeve I（16）Between, piston I（14）Inner side is machined with annular groove, central tube I（11）Upper relevant position is evenly equipped with through hole I,
Adapter sleeve I（16）Lower end and central tube II（17）Threaded upper ends connect, central tube II（17）Lower end and joint IV（21）Screw thread connects
Connect, joint IV（21）Outside and sleeve II（20）Lower end is threadedly coupled, piston II（19）Positioned at sleeve II（20）With central tube II
（17）Between, sleeve II（20）Upper end and piston II（19）Connected by shear pin II, sleeve I（15）Lower end and piston II（19）It is logical
Cross shear pin I（18）Connection, central tube II（17）Through hole II is radially evenly equipped with, through hole is located at piston II（19）With joint IV（21）
Between.
2. packer according to claim 1, it is characterised in that：Retaining mechanism I includes lock claw I（3）With lock ring I（6）, lock
When tight, lock ring I（6）It is sleeved on lock claw I（3）On.
3. packer according to claim 1, it is characterised in that：Tripper I is solution lock ring I（5）, during unblock, lock claw I
（3）In solution lock ring I（5）Pressure under depart from lock ring I（6）.
4. packer according to claim 1, it is characterised in that：Anchoring device includes joint V（24）, joint V（24）
Internal thread and central tube III（30）External screw thread is threadedly coupled, connecting cylinder II（26）Pass through sliding block II（25）With joint V（24）Even
Connect, sliding block II（25）Pass through pin（44）It is connected to joint V（24）On, connecting cylinder II（26）Inner side is machined with boss III, lock claw
Ⅱ（27）It is enclosed on central tube III（30）On, lock claw II（27）Positioned at joint V（24）Between boss III, central tube III（30）On
Boss IV is machined with, solves lock ring II（28）With central tube III（30）Be threadedly coupled and with the upper contact of boss IV, connecting cylinder II
（26）Lower end and anchor tooth main body（32）Threaded connection, anchor tooth main body（32）With central tube III（30）Between be provided with connecting tube
（31）, connecting tube（31）Upper end and lock ring II（29）Threaded connection, connecting tube（31）Lower end and anchor tooth seat（34）Threaded connection, anchor
Tooth main body（32）With anchor tooth seat（34）Between be provided with anchor tooth（33）, anchor tooth seat（34）Lower end and cylinder barrel I（37）Upper end is by cutting
The connection of nail III, cylinder barrel I（37）Lower end and piston III（40）Connected by shear pin IV, piston III（40）With anchor tooth seat（34）Between set
It is equipped with piston IV（36）With adapter sleeve II（38）, sealing ring II 45, adapter sleeve II are cased with piston IV 36（38）Upper end and center
Pipe III（30）Threaded connection, piston IV（36）It is enclosed on central tube III（30）On, piston IV（36）Inner side is provided with annular groove II, in
Heart pipe III（30）Through hole III, adapter sleeve II are being evenly equipped with the relevant position of annular groove II（38）Lower end and central tube IV（39）Screw thread
Connection, piston III（40）It is enclosed on central tube IV（39）On, cylinder barrel II（41）It is enclosed on piston III（40）Above and by shear pin V connect,
Cylinder barrel II（41）Lower end and joint VI（42）Threaded connection, central tube IV（39）Radial direction is provided with through hole IV, and through hole IV is located at
Piston III（40）With joint VI（42）Between, joint VI（42）Lower end and plug（43）Threaded connection.
5. packer according to claim 4, it is characterised in that：Retaining mechanism II includes lock claw II（27）With lock ring II
（29）, during locking, lock ring II（29）It is sleeved on lock claw II（27）On.
6. packer according to claim 4, it is characterised in that：Tripper II is solution lock ring II（28）, during unblock, lock
Pawl II（27）In solution lock ring II（28）Pressure effect lower depart from lock ring II（29）.
7. packer according to claim 1, it is characterised in that：The wedging body（9）Minor diameter and major diameter transition position
For the conical surface；Described connecting cylinder I（4）With connecting cylinder II（26）Through hole is all provided with wall.
8. packer according to claim 1, it is characterised in that：Described lock claw I（3）External screw thread and lock ring I（6）'s
Internal thread tooth form is on the contrary, lock claw II（27）External screw thread and lock ring II（29）Internal thread tooth form it is opposite.
9. packer according to claim 1, it is characterised in that：Described lock claw I（3）With lock claw II（27）Circumferentially face
There is screw thread one end to be all uniformly provided with elongated slot, form of thread is crest to the left with horizontal line into 15 °~45 ° angles；The lock
Ring I（6）With lock ring II（29）Threaded one end tooth form is crest to the right with horizontal line into 15 °~45 ° angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510473359.5A CN105019855B (en) | 2015-08-05 | 2015-08-05 | Packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510473359.5A CN105019855B (en) | 2015-08-05 | 2015-08-05 | Packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105019855A CN105019855A (en) | 2015-11-04 |
| CN105019855B true CN105019855B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510473359.5A Active CN105019855B (en) | 2015-08-05 | 2015-08-05 | Packer |
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| CN (1) | CN105019855B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414199B (en) * | 2017-12-29 | 2020-05-22 | 中国海洋石油集团有限公司 | Performance testing device for visual packer rubber cylinder |
| CN114718476A (en) * | 2022-04-19 | 2022-07-08 | 盘锦博程实业有限公司 | Self-sealing type steam injection pipe column distance changing device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566762A (en) * | 1994-04-06 | 1996-10-22 | Tiw Corporation | Thru tubing tool and method |
| US6536532B2 (en) * | 2001-03-01 | 2003-03-25 | Baker Hughes Incorporated | Lock ring for pipe slip pick-up ring |
| CN2888063Y (en) * | 2006-03-17 | 2007-04-11 | 中国石化集团胜利石油管理局井下作业公司 | Integrated bridge plug squeeze cementing tool |
| CN101382052B (en) * | 2008-10-21 | 2011-12-14 | 张永祥 | Back-off packer |
| CN102337860B (en) * | 2010-09-03 | 2014-04-16 | 中国石油大学(北京) | Packer |
| CN202745795U (en) * | 2012-06-11 | 2013-02-20 | 新疆华油油气工程有限公司 | Hydraulic sealing and de-sealing high-pressure packer |
| CN103321605B (en) * | 2013-05-24 | 2016-01-06 | 中国石油化工股份有限公司 | Under hit formula unfreezing packer |
| CN204002659U (en) * | 2014-07-29 | 2014-12-10 | 河南旭然石油钻采机械有限公司 | A kind of multifunctional bridge plug dropping feeder |
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| CN105019855A (en) | 2015-11-04 |
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Address after: Changge City, Xuchang City, Henan province 461500 Weiwu Road, Middle East Applicant after: Henan Fu Fu Overseas Petroleum Equipment Co., Ltd. Address before: Changge City, Xuchang City, Henan province 461500 Weiwu Road, Middle East Applicant before: Changge Fuqiao Mechanical and Electrical Co., Ltd. |
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Inventor after: Li Guorong Inventor after: Liu Lei Inventor after: Li Luwei Inventor after: Li Juan Inventor after: Li Wenqi Inventor after: Zhao Weifeng Inventor after: Li Weiling Inventor before: Liu Lei Inventor before: Zhao Weifeng Inventor before: Li Juan Inventor before: Li Wenqi Inventor before: Li Weiling Inventor before: Li Luwei |
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