CN207701107U - A kind of water blockoff gradually deblocking packer - Google Patents
A kind of water blockoff gradually deblocking packer Download PDFInfo
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- CN207701107U CN207701107U CN201820163048.8U CN201820163048U CN207701107U CN 207701107 U CN207701107 U CN 207701107U CN 201820163048 U CN201820163048 U CN 201820163048U CN 207701107 U CN207701107 U CN 207701107U
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- central tube
- dummy piston
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- pressure
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Abstract
A kind of water blockoff gradually deblocking packer, packer includes top connection, top connection is connected with housing, central tube is equipped in top connection, release dummy piston is equipped with below top connection, there is deblocking pin connection between upper housing and release dummy piston, it discharges and is equipped with upper pressure dummy piston below dummy piston, intermediate sleeve is equipped with below upper pressure dummy piston, central tube is connected with exterior central tube, the outer wall of exterior central tube is equipped with outer lug boss, pressure-bearing set is equipped between intermediate sleeve and exterior central tube, the top of pressure-bearing set is equipped with boss, it is cased with stopper on packing element successively on the exterior central tube of pressure-bearing set lower section, side packing element, spacer ring, middle packing element, stopper under packing element, lower housing lower end is connect with lower contact, clamp spring bracket is equipped in lower ring cavity between housing and central tube, clamp spring and clamp spring are hung, clamp spring hangs lower face and is equipped with release plunger.The application enables packer to bear height and releases stress, bears underground pressure difference using releasing stress compensating cylinder and bearing that compensating cylinder protection solution sealing mechanism is pressed to unseal pin.
Description
Technical field
The utility model belongs to a kind of tool used for water injection wells in oil fields more particularly to a kind of water blockoff gradually deblocking packer.
Background technology
Conventional Packer for blocking water is made of simple setting mechanism, locking mechanism, packing element, solution sealing mechanism, due to stifled
Well producing pressure differential is larger, and solve sealing mechanism above carries deblocking power 100KN or so, by the frictional force of packing element friction casing wall
It is hardly possible to unseal, packing element of only grinding away deblocking.
Utility model content
In order to solve technical problem present in background technology, the utility model provides a kind of water blockoff gradually deblocking packing
Device, the utility model provide a kind of high pressure gradually deblocking Packer for blocking water, using releasing stress compensating cylinder and bear upper pressing
The cylinder protection solution sealing mechanism that weighs unseals pin, and packer is enable to bear higher release stress, bear larger underground pressure difference.
The technical issues of the utility model is solved is realized using following technical scheme：Water blockoff gradually deblocking packer packet
Top connection is included, the top connection lower part outer wall is connected with housing, is equipped with central tube in top connection, central tube lower end connects under
Head connects, and release dummy piston is equipped in the ring cavity between upper housing and central tube below top connection, is discharged under dummy piston
End face is communicated with center tube cavity, there is deblocking pin connection, release dummy piston lower section between upper housing and release dummy piston
Upper housing and central tube between ring cavity in be equipped with upper pressure dummy piston, it is upper flatten weighing apparatus piston lower surface and upper housing outside
It communicates, intermediate sleeve is equipped with below upper pressure dummy piston, intermediate sleeve top is intermediate in the ring cavity between upper housing and central tube
Set middle part is connect with upper housing, and intermediate sleeve lower part is located at below upper housing and intermediate sleeve lower part is equipped with and pulls pin, central tube
Exterior central tube is connected at outer wall shoulder, the outer wall of exterior central tube is equipped with outer lug boss, is equipped with and holds between intermediate sleeve and exterior central tube
The top of pressing sleeve, pressure-bearing set is equipped with boss and is matched with the outer lug boss of exterior central tube, on the exterior central tube of pressure-bearing set lower section
It is cased with stopper under stopper on packing element, side packing element, spacer ring, middle packing element, packing element successively, the lower part of stopper passes through initial release under packing element
The lower housing of pin connection, lower housing lower end connects with lower contact, lower ring cavity between housing and central tube it is interior equipped with clamp spring bracket,
Clamp spring and clamp spring are hung, and central tube is threadedly coupled with clamp spring bracket, and clamp spring hangs lower face and is equipped with release plunger.
The beneficial effects of the utility model are：1, multistage can be achieved and separate zone water shutoff is used in conjunction, greatly meet the need of production
It wants.When 2, unsealing, since deblocking power packers at different levels are not mutually superimposed, not increasing burden to ground installation, operation is time saving and energy saving,
It improves work efficiency.3, such as to change deblocking power or adjustment equipment meets ability, can suitably adjust the diameter of deblocking shear pin
.Every grade of packer of gradually deblocking Packer for blocking water individually bears the deblocking power of upper lifting pipe post, is opened from most upper level packer
Beginning unseal successively, make the multiple intervals of water blockoff well, multiple-string packer also can deblocking packer smoothly rise tubing string.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1- top connections, the upper housings of 2-, 3- unseals pin, 4- discharges dummy piston, flattens weighing apparatus on 5- central tubes, 6-
Piston, 7- intermediate sleeves, 8- pull pin, 9- pressure-bearings set, packing element in stopper, the sides 11- packing element, 12- spacer rings, 13- on 10- packing elements,
Housing, 20- cards under stopper, 16- initial releases pin, 17- clamp springs, 18- clamp springs bracket, 19- under 14- exterior central tubes, 15- packing elements
Spring extension, 21- release plungers, 22- lower contacts.
Specific implementation mode
The utility model is described further below in conjunction with attached drawing：
As shown in Figure 1, water blockoff gradually deblocking packer includes top connection 1, the 1 lower part outer wall of top connection is connected with
Housing 2, top connection 1 is interior to be equipped with central tube 5, and 5 lower end of central tube is connect with lower contact 22, and the upper housing 2 of 1 lower section of top connection is in
Release dummy piston 4 is equipped in ring cavity between heart pipe 5, release 4 lower face of dummy piston is communicated with 5 inner cavity of central tube, center
Discharge dummy piston 4 lower face also feed liquor when pipe is suppressed, promote to discharge dummy piston and generate upward thrust, thus balance because
The downward thrust of the central tube of generation is suppressed, deblocking pin 3 is effectively protected.Have between upper housing 2 and release dummy piston 4
It unseals pin 3 to connect, upper pressure dummy piston is equipped in the ring cavity between the upper housing 2 and central tube 5 of 4 lower section of release dummy piston
6, upper pressure 6 lower face of dummy piston is communicated with the outside of upper housing 2, and 6 lower section of upper pressure dummy piston is equipped with intermediate sleeve 7, intermediate sleeve 7
Top is in the ring cavity between upper housing 2 and central tube 5, and 7 middle part of intermediate sleeve is connect with upper housing 2, and 7 lower part of intermediate sleeve is located at
2 lower section of upper housing and 7 lower part of intermediate sleeve, which are equipped with, pulls pin 8, is connected with exterior central tube 14 at 5 outer wall shoulder of central tube, outside
The outer wall of central tube 14 is equipped with outer lug boss, and pressure-bearing is equipped between intermediate sleeve 7 and exterior central tube 14 and covers 9, the top of pressure-bearing set 9 is equipped with
It boss and is matched with the outer lug boss of exterior central tube 14, sets rear pressure-bearing and cover the boss on 9 tops and hang over the outer of exterior central tube 14
It is used for protecting deblocking pin 3 on boss, stopper 10 on packing element, side packing element is cased with successively on the exterior central tube 14 of 9 lower section of pressure-bearing set
11, stopper 15 under spacer ring 12, middle packing element 13, packing element, it is lower outer to pass through the connection of initial release pin 16 for the lower part of stopper 15 under packing element
Set 19, lower 19 lower end of housing connect with lower contact 22, the ring cavity between lower housing 19 and central tube 5 it is interior equipped with clamp spring bracket 18,
Clamp spring 17 and clamp spring hang 20, and central tube 5 is threadedly coupled with clamp spring bracket 18, and clamp spring hangs 20 lower faces and is equipped with release plunger 21, in
Heart pipe suppresses 21 uplink of release plunger, and driving clamp spring to hang 20 uplinks, the realization of compression packing element is set in turn, and clamp spring is hung 20 and hung at this time
On clamp spring 17 can only uplink cannot retreat, prevent clamp spring hang 20 downlinks deblocking.
The packer of the application can multistage connection, separate zone water shutoff.When normal work suppresses swollen envelope, liquid is passed by compressing
Hole feed liquor is pressed to push 21 uplink of release plunger, release plunger 21 that 20 cutting initial release pins 16 of clamp spring extension is pushed to compress on packing element
Row, makes packing element and the swollen envelope of internal surface of sleeve pipe.Meanwhile packing element also pushes pressure-bearing to cover 9 uplinks, and by thrust in exterior central tube boss
On, burden is not generated to deblocking pin.In addition while suppressing, balance pressure transmission hole on central tube also feed liquor promotes to discharge
Dummy piston 4 generates upward thrust, thus balances because of the downward thrust of the central tube for suppressing generation, is effectively protected understanding
Offset nail 3.Packer is set to work normally.
Since the producing pressure differential of water blockoff well is larger, this pressure generates very big downward thrust to the packing element of swollen envelope,
Have the tendency that promoting central tube downlink, larger shearing force will produce to deblocking pin 3, but at the same time, on upper housing top
Inlet opening feed liquor, by this pressure transmission give upper pressure dummy piston 6, upper pressure dummy piston 6 go upward to and discharge dummy piston phase
Contact has the tendency that promotion central tube uplink, and two power are thus in a basic balance, is effectively protected deblocking pin 3.
When lift pipe string, since deblocking 3 tubing string weight below of pin is plus the packing element of packers at different levels below deblocking pin
It is all added on corresponding deblocking pin with the frictional force of internal surface of sleeve pipe, i.e.,：The pin of most upper level meets most heavy, the second level
Take second place, and so on.So when upper lifting force reaches certain load, the deblocking pin of most upper level is cut, meanwhile, this grade
Packing element, which is withdrawn, realizes deblocking.Continue above to carry, and so on, when the shearing for the deblocking shear pin of certain level-one occur is more than following accordance
When load, in the form of this grade of packer and part below will not cut by unsealing pin simultaneously, packing element does not unseal while being carried
Go out outside well.To act full well casing column.
Claims (1)
1. a kind of water blockoff gradually deblocking packer, including top connection (1), it is characterised in that：Top connection (1) lower part outer wall
It is connected with housing (2), is equipped with central tube (5) in top connection (1), central tube (5) lower end is connect with lower contact (22), top connection
(1) release dummy piston (4), release dummy piston (4) are equipped in the ring cavity between the upper housing (2) below and central tube (5)
Lower face is communicated with central tube (5) inner cavity, is had deblocking pin (3) to connect between upper housing (2) and release dummy piston (4), is released
It puts and is equipped with upper pressure dummy piston (6), upper pressing in the ring cavity between the upper housing (2) below dummy piston (4) and central tube (5)
Weighing apparatus piston (6) lower face is communicated with the outside of upper housing (2), and intermediate sleeve (7), intermediate sleeve are equipped with below upper pressure dummy piston (6)
(7) it in ring cavity of the top between upper housing (2) and central tube (5), is connect with upper housing (2) in the middle part of intermediate sleeve (7), it is intermediate
Set (7) lower part is located at below upper housing (2) and intermediate sleeve (7) lower part is equipped with and pulls pin (8), central tube (5) outer wall shoulder
Place is connected with exterior central tube (14), and the outer wall of exterior central tube (14) is equipped with outer lug boss, between intermediate sleeve (7) and exterior central tube (14)
Equipped with pressure-bearing set (9), the top of pressure-bearing set (9) is equipped with boss and is matched with the outer lug boss of exterior central tube (14), pressure-bearing set
(9) be cased with successively on the exterior central tube (14) below stopper on packing element (10), side packing element (11), spacer ring (12), middle packing element (13),
Stopper (15) under packing element, the lower part of stopper (15) passes through the lower housing (19) of initial release pin (16) connection, lower housing under packing element
(19) lower end is connect with lower contact (22), and clamp spring bracket (18), card are equipped in the ring cavity between lower housing (19) and central tube (5)
Spring (17) and clamp spring hang (20), and central tube (5) is threadedly coupled with clamp spring bracket (18), and clamp spring hangs (20) lower face and is equipped with release work
It fills in (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820163048.8U CN207701107U (en) | 2018-01-30 | 2018-01-30 | A kind of water blockoff gradually deblocking packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820163048.8U CN207701107U (en) | 2018-01-30 | 2018-01-30 | A kind of water blockoff gradually deblocking packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701107U true CN207701107U (en) | 2018-08-07 |
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ID=63031727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820163048.8U Active CN207701107U (en) | 2018-01-30 | 2018-01-30 | A kind of water blockoff gradually deblocking packer |
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| CN (1) | CN207701107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159222A (en) * | 2019-06-03 | 2019-08-23 | 李洪敏 | Packer, oil extraction system, oil extraction pump and oil production method |
| CN112302566A (en) * | 2020-10-27 | 2021-02-02 | 大庆泰泽机械加工有限公司 | Packer for controlling setting of air balance cavity |
-
2018
- 2018-01-30 CN CN201820163048.8U patent/CN207701107U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159222A (en) * | 2019-06-03 | 2019-08-23 | 李洪敏 | Packer, oil extraction system, oil extraction pump and oil production method |
| CN112302566A (en) * | 2020-10-27 | 2021-02-02 | 大庆泰泽机械加工有限公司 | Packer for controlling setting of air balance cavity |
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