CN208669264U - A kind of recyclable packer of big orifice - Google Patents
A kind of recyclable packer of big orifice Download PDFInfo
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- CN208669264U CN208669264U CN201821256295.9U CN201821256295U CN208669264U CN 208669264 U CN208669264 U CN 208669264U CN 201821256295 U CN201821256295 U CN 201821256295U CN 208669264 U CN208669264 U CN 208669264U
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Abstract
The utility model discloses a kind of big orifices, and packer can be recycled, it is characterized in that, mechanism for card is sat including top connection, the first sealing mechanism, the second sealing mechanism, first, second sits mechanism for card, retaining mechanism, solution sealing mechanism, upper center tube, lower center tube and lower contact, and successively screw thread is in succession for the top connection, upper center tube, lower center tube and lower contact.The utility model uses packing element-upper slips-packing element-lower slips mode with holes, the deposit that can prevent slips from being fallen above or other impurity sinks, and improves stability of the packer in casing；It can set simultaneously, can also be set one by one from top to bottom by adjusting the shear force of fixed ring on packer in multiple while tripping in casing；Lower center tube can also be cut off with special-purpose machinery cutter or chemical cleavage mode and realizes deblocking by directly above proposing deblocking.
Description
Technical field
The utility model belongs to packer field, and in particular to a kind of recyclable packer of big orifice.
Background technique
It means with elastic sealing elements, and insulates between various sizes tubing string and wellbore whereby and annular between tubing string
Space, and completely cut off payzone, (note) liquid, the downhole tool of protection sleeve pipe are produced with control.Packer is easy to be deposited in the prior art
Object or other impurity sinks, lead to not recycle, and only with single centre pipe structure, it is single to unseal mode.
Utility model content
The purpose of this utility model is to provide a kind of big orifices, and packer can be recycled, to solve to mention in above-mentioned background technique
Out the problem of.
In order to achieve the above object, the major technique solution of the utility model is to provide a kind of recyclable packing of big orifice
Device, which is characterized in that including top connection, the first sealing mechanism, the second sealing mechanism, first sit mechanism for card, second sit mechanism for card,
Retaining mechanism, solution sealing mechanism, upper center tube, lower center tube and lower contact, top connection, upper center tube, lower center tube and lower contact
Successively screw thread in succession,
First sealing mechanism includes the adjusting ring being sequentially sleeved on upper center tube, packing element with holes, connector sleeve and intermediate sleeve,
It is all made of threaded connection between each other；
Second sealing mechanism includes packing element set, outer packing element, intermediate packing element, pressure ring, spacer ring, spacer ring be set in intermediate packing element and
Between outer packing element, pressure ring is set between intermediate packing element and upper center tube, and packing element set is set in outside outer packing element and intermediate packing element；
First seat mechanism for card includes upper cone, the first slip sleeve, the first spring leaf, the first shear pin and upper slips, upper slips
It being set on upper center tube with upper cone, upper slips are connect with upper cone, and the first slip sleeve is set in outside upper slips, and first
Spring leaf be arranged between the first slip sleeve and upper slips, the first shear pin pass through slips be set on upper cone, upper cone with
The connection of packing element external threading；
Second seat mechanism for card includes lower cone, the second slip sleeve, second spring piece, the second shear pin and lower slips, lower slips
It being set on upper center tube with lower cone, lower slips are connect with lower cone, and the second slip sleeve is set in outside lower slips, and second
Spring leaf be arranged between the second slip sleeve and lower slips, the second shear pin pass through slips be set under lower cone, lower cone with
The connection of packing element external threading, is arranged with the first lock ring between lower cone and upper center tube；
Retaining mechanism includes that thrust piston, piston bush, the second lock ring, lock tube, cylinder sleeve and piston, thrust piston are set in
On central tube, piston bush is set in outside thrust piston, and piston is set on lower center tube, and lock tube and cylinder sleeve are set in piston
Outside, lock tube and cylinder sleeve are connected through a screw thread, and the second lock ring is arranged between lock tube and piston；
Solution sealing mechanism includes thrust ring and fixed ring, and thrust ring is arranged in lower contact by positioning screw, thrust ring and
Cylinder sleeve be threadedly coupled, fixed ring be arranged on thrust ring and lower contact between.
As an improvement being all provided on the first slip sleeve and the second slip sleeve, there are four the slots that depth successively increases.
As an improvement being equipped with pressure transmission hole on upper center tube and lower center tube.
Further, the latus rectum of upper center tube and lower center tube is 76mm to 100.5mm
The utility model beneficial effect is: a kind of 1. big orifice Recyclable packers, the packing with other same sizes
Device compares, and internal diameter can be processed bigger, increases oil production, improves the benefit of client.
2. using packing element-upper slips-packing element-lower slips mode with holes when design, it can prevent slips from being fallen above
Deposit or other impurity sinks, and improve stability of the packer in casing.Guarantee that upper slips above propose solution in packer
Upper slips and lower slips are separately recovered by the slot of four different depths in the reliability recycled when envelope, reduce packer solution
Risk when envelope.
3. it can set simultaneously in multiple while tripping in casing, it can also be by adjusting fixed ring on packer
Shear force is set one by one from top to bottom.
4. lower center tube can also be cut off with special-purpose machinery cutter or chemical cleavage mode by directly above proposing deblocking
Realize deblocking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention,
Fig. 2 is the structural schematic diagram of the utility model upper center tube part,
Fig. 3 is the structural schematic diagram of the utility model lower center tube part,
In figure: top connection 1, upper center tube 2, lower center tube 3, lower contact 4, adjust ring 5, packing element with holes 6, connector sleeve 7, in
Between set 8, packing element set 9, outer packing element 10, intermediate packing element 11, pressure ring 12, spacer ring 13, spacer ring 13, upper cone 14, the first slip sleeve 15,
First spring leaf 16, the first shear pin 17, upper slips 18, lower cone 19, the second slip sleeve 20, second spring piece 21, the second shear pin
22, lower slips 23, the first lock ring 24, thrust piston 25, piston bush 26, the second lock ring 27, lock tube 28, cylinder sleeve 29, piston 30, push away
Power ring 31, fixed ring 32, pressure transmission hole 33.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
It will be understood by those skilled in the art that in the exposure of the utility model, term " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore on
Stating term should not be understood as limiting the present invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be multiple, term
The limitation for the quantity that " one " should not be understood as pair.
As shown in Figure 1 to Figure 3, a kind of recyclable packer of big orifice described in the present embodiment, which is characterized in that including
Top connection 1, the first sealing mechanism, the second sealing mechanism, first sit mechanism for card, the second seat mechanism for card, retaining mechanism, deblocking machine
Structure, upper center tube 2, lower center tube 3 and lower contact 4, top connection 1, upper center tube 2, lower center tube 3 and lower contact 4 pass sequentially through
Screw thread in succession,
First sealing mechanism include the adjusting ring 5 being sequentially sleeved on upper center tube 2, packing element with holes 6, connector sleeve 7 and in
Between cover 8, be all made of threaded connection between each other；
Second sealing mechanism includes that packing element set 9, outer packing element 10, intermediate packing element 11, pressure ring 12 and spacer ring 13, spacer ring 13 are arranged
Between intermediate packing element 11 and outer packing element 10, pressure ring 12 is set between intermediate packing element 11 and upper center tube 2, and packing element set 9 is arranged
Outside outer packing element 10 and intermediate packing element 11；
First seat mechanism for card includes upper cone 14, the first slip sleeve 15, the first spring leaf 16, the first shear pin 17 and upper slips
18, upper slips 18 and upper cone 14 are set on upper center tube 2, and upper slips 18 are connect with upper cone 14, the first slip sleeve 15
It is set in outside upper slips 18, the first spring leaf 16 is arranged between the first slip sleeve 15 and upper slips 18, and the first shear pin 17 is worn
It crosses the first slip sleeve 15 to be arranged on upper cone 14, upper cone 14 is threadedly coupled with packing element set 9；
Second seat mechanism for card includes lower cone 19, the second slip sleeve 20, second spring piece 21, the second shear pin 22 and lower slips
23, lower slips 23 and lower cone 19 are set on upper center tube 2, and lower slips 23 are connect with lower cone 19, the second slip sleeve 20
It is set in outside lower slips 23, second spring piece 21 is arranged between the second slip sleeve 20 and lower slips 23, and the second shear pin 22 is worn
It crosses the second slip sleeve 20 to be arranged under lower cone 19, lower cone 19 is threadedly coupled with packing element set 9, lower cone 19 and upper center tube 2
Between be arranged with the first lock ring 24；
Retaining mechanism includes thrust piston 25, piston bush 26, the second lock ring 27, lock tube 28, cylinder sleeve 29 and piston 30, thrust
Piston 25 is set on upper center tube 2, and piston bush 26 is set in outside thrust piston 25, and piston 30 is set on lower center tube 3,
Lock tube 28 and cylinder sleeve 29 are set in outside piston 30, and lock tube 28 and cylinder sleeve 29 are connected through a screw thread, and the setting of the second lock ring 27 exists
Between lock tube 28 and piston 30；
Solution sealing mechanism includes thrust ring 31 and fixed ring 32, and thrust ring 31 is arranged in lower contact 4 by positioning screw, is pushed away
Power ring 31 is threadedly coupled with cylinder sleeve 29, fixed ring 32 be arranged on thrust ring 31 and lower contact 4 between.
As an improvement specific embodiment, be all provided with that there are four depth on the first slip sleeve 15 and the second slip sleeve 29
The slot successively increased guarantees the reliability that upper slips are recycled when packer above proposes deblocking, keeps upper slips 18 and lower slips 24 logical
The slot for crossing four different depths is separately recovered, and reduces risk when removing seal for packer.
As an improvement specific embodiment, be equipped with pressure transmission hole 33 on upper center tube 2 and lower center tube 3, two
Pressure transmission hole 33 is passed through hydraulic oil simultaneously, keeps the pressure in upper center tube 2 and lower center tube 3 more stable.
It is noted that the latus rectum of upper center tube 2 and lower center tube 3 is 76mm to 100.5mm.
Working principle of the utility model is:
1. 1 connection screw thread of top connection on packer top is connect with oil pipe, 4 connection screw thread of lower contact and oil pipe of lower part and
Other tool connections；
2. the packer for connecting oil pipe transfers to oil well predetermined depth, lower part oil pipe is blocked with specific purpose tool；
3. packer is setting: suppressing 14-16MPa from packer upper lumen, pressure acts on part through pressure transmission hole and pushes away
On power piston 25 and part piston 30；The setting shear pin of part is cut when piston is run；Under the effect of the pressure, part connector sleeve
7 all move upwards to part piston set 26, and completing following steps, (casing in step is the upper center tube 2 being threadedly coupled
With lower center tube 3):
3.1 extrusion sections packing element 6 with holes, makes packing element 6 with holes prop up casing, prevents upper sleeve sand from falling, influence to seal
It is worked normally every device；
3.2 the first shear pins of part 17 are cut, and part upper slips 18, which strut, blocks casing, prevents packer during the work time
Displacement；
Packing element 11 struts among the outer packing element 10 of 3.3 parts and part, and casing is separated into epicoele and cavity of resorption；
3.4 the second shear pins of part 22 are cut, and part lower slips 23, which strut, blocks casing；Prevent packer during the work time
Displacement；
4. after each part presses design requirement execution, continuing to be forced into 20MPa, it is ensured that upper and lower slips and packing element
Positioning and effectively separation with casing；
5. packer chamber pressure is released to zero, each component moved upwards at this time is locked (the by the first lock ring of part 24
On one lock ring 24 design have reversed buttless thread), guarantee the part moved upwards will not because of pressure disappearance and return.
After 6. completion is setting, lower part oil pipe is blocked with specific purpose tool and is taken out, is suppressed from packer epicoele and cavity of resorption annular space,
To packing element being sealed property validation test, packer enters the production phase after verifying is qualified.
7. oil well production terminates or other reasons needs take out packer, following steps are completed:
7.1 upper lifting pipe posts, part top connection 1, part upper center tube 2, part lower center tube 3, part lower contact 4 etc. are upward
Operation, part fixed ring 32 are cut；Slips and packing element retraction, packer realize deblocking simultaneously.
The utility model is not limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, make any variation in its shape or structure, it is all that there is same as the present application or phase
Approximate technical solution, all falls within the protection scope of the utility model.
Claims (4)
1. packer can be recycled in a kind of big orifice, which is characterized in that including top connection (1), the first sealing mechanism, the second sealer
Structure, first seat mechanism for card, second seat mechanism for card, retaining mechanism, solution sealing mechanism, upper center tube (2), lower center tube (3) and under connect
Head (4), the top connection (1), upper center tube (2), lower center tube (3) and lower contact (4) pass sequentially through screw thread in succession,
First sealing mechanism includes adjusting ring (5), the packing element with holes (6), connector sleeve being sequentially sleeved on upper center tube (2)
(7) and intermediate sleeve (8) it, is all made of threaded connection between each other；
Second sealing mechanism includes packing element set (9), outer packing element (10), intermediate packing element (11), pressure ring (12) and spacer ring (13),
The spacer ring (13) is set between intermediate packing element (11) and outer packing element (10), and the pressure ring (12) is set in intermediate packing element (11)
Between upper center tube (2), the packing element set (9) is set in outer packing element (10) and intermediate packing element (11) is external；
The first seat mechanism for card includes upper cone (14), the first slip sleeve (15), the first spring leaf (16), the first shear pin (17)
With upper slips (18), the upper slips (18) and upper cone (14) are set on upper center tube (2), upper slips (18) and epicone
Body (14) connection, it is external that first slip sleeve (15) is set in upper slips (18), and the first spring leaf (16) setting is the
Between one slip sleeve (15) and upper slips (18), first shear pin (17) passes through the first slip sleeve (15) and is arranged in upper cone
(14) on, the upper cone (14) is threadedly coupled with packing element set (9)；
The second seat mechanism for card includes lower cone (19), the second slip sleeve (20), second spring piece (21), the second shear pin (22)
With lower slips (23), the lower slips (23) and lower cone (19) are set on upper center tube (2), lower slips (23) and lower cone
Body (19) connection, it is external that second slip sleeve (20) is set in lower slips (23), and second spring piece (21) setting is the
Between two slip sleeves (20) and lower slips (23), second shear pin (22) passes through the second slip sleeve (20) and is arranged in lower cone
(19) under, the lower cone (19) is threadedly coupled with packing element set (9), and is arranged between lower cone (19) and upper center tube (2)
One lock ring (24)；
The retaining mechanism include thrust piston (25), piston bush (26), the second lock ring (27), lock tube (28), cylinder sleeve (29) and
Piston (30), the thrust piston (25) are set on upper center tube (2), and the piston bush (26) is set in thrust piston (25)
Outside, piston bush (26) and lock tube (28) junction are equipped with setting shear pin, and the piston (30) is set on lower center tube (3),
The lock tube (28) and cylinder sleeve (29) are set in piston (30) outside, and lock tube (28) and cylinder sleeve (29) are connected through a screw thread, the
Two lock rings (27) are arranged between lock tube (28) and piston (30)；
The solution sealing mechanism includes thrust ring (31) and fixed ring (32), and the thrust ring (31) is arranged under by positioning screw
On connector (4), thrust ring (31) is threadedly coupled with cylinder sleeve (29), and the fixed ring (32) is arranged in thrust ring (31) and lower contact
(4) between on.
2. packer can be recycled in big orifice according to claim 1, which is characterized in that first slip sleeve (15) and
The slot that depth successively increases there are four being all provided on two slip sleeves (29).
3. packer can be recycled in big orifice according to claim 1, which is characterized in that upper center tube (2) He Xiazhong
Pressure transmission hole (33) are equipped on heart pipe (3).
4. packer can be recycled in big orifice according to claim 1, which is characterized in that upper center tube (2) He Xiazhong
The latus rectum of heart pipe (3) is 76mm to 100.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256295.9U CN208669264U (en) | 2018-08-06 | 2018-08-06 | A kind of recyclable packer of big orifice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256295.9U CN208669264U (en) | 2018-08-06 | 2018-08-06 | A kind of recyclable packer of big orifice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669264U true CN208669264U (en) | 2019-03-29 |
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ID=65833185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821256295.9U Active CN208669264U (en) | 2018-08-06 | 2018-08-06 | A kind of recyclable packer of big orifice |
Country Status (1)
| Country | Link |
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| CN (1) | CN208669264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554838A (en) * | 2020-12-11 | 2021-03-26 | 惟其信石油机械(天津)有限公司 | High-temperature and high-pressure resistant packer |
| CN113356787A (en) * | 2021-06-25 | 2021-09-07 | 承德石油高等专科学校 | High-temperature and high-pressure resistant recyclable downhole packer |
-
2018
- 2018-08-06 CN CN201821256295.9U patent/CN208669264U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554838A (en) * | 2020-12-11 | 2021-03-26 | 惟其信石油机械(天津)有限公司 | High-temperature and high-pressure resistant packer |
| CN113356787A (en) * | 2021-06-25 | 2021-09-07 | 承德石油高等专科学校 | High-temperature and high-pressure resistant recyclable downhole packer |
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