CN209654006U - Y221MX washing well rotates setting type packer - Google Patents
Y221MX washing well rotates setting type packer Download PDFInfo
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- CN209654006U CN209654006U CN201920107546.5U CN201920107546U CN209654006U CN 209654006 U CN209654006 U CN 209654006U CN 201920107546 U CN201920107546 U CN 201920107546U CN 209654006 U CN209654006 U CN 209654006U
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Abstract
The utility model discloses Y221MX washing wells to rotate setting type packer, including pipe sleeve, centralizer and slips, there is upper center tube in the left end of the pipe sleeve through seamless connection, and the right end of pipe sleeve has lower center tube through seamless connection, the end outer ring of the lower center tube is equipped with tubing string, the centralizer is fixedly welded on the outer wall of lower center tube, the end of the tubing string is fixedly welded with spacer ring, and the inside of spacer ring is through being equipped with track joint pipe body, the slips is fixedly welded on the surface of track joint pipe body, and the end fixed bonding of track joint pipe body has packing element, the inner wall cooperation of the pipe sleeve is fitted with backwash piston.The YMX washing well rotates in setting type packer, it is threaded connection between lower center tube and tubing string, convenient for user by tubing string forward or reverse, tubing string can be mentioned above, certain pressure is imposed to packing element, so that tubing string compresses packing element, Seal Oil annular space under the effect of gravity, to realize setting for the packer.
Description
Technical field
The utility model relates to packer correlative technology field, specially Y221MX washing well rotates setting type packer.
Background technique
Mechanical slips Y221 series packer is mainly used for oil production by layer, water filling, water detection, water blockoff, squeezes stifled, acidification, pressure break
Equal measures construction, M indicate that with hydraulic anchor body, X indicates to have backwash function, and Y221 packer is one-way slip support, above mention
Decentralization compression is set after rotating in the forward direction after tubing string, hydraulic anchor anchoring, the high temperature and pressure packer of upper lifting pipe post deblocking, slips,
Anchor fluke allows that slips grabs the casing for biting any grade of steel easily and card tooth is not subject to any damage, anchor fluke in specific condition processing
Reset spring uses high elastic force spring, makes it have high intensity, reliable with casing anchoring, in underground long-term work be not in because
Becoming rusty between reset spring failure or anchor fluke and anchor body sealing mating surface extremely leads to waterpower anchor fluke not return, and the packer pipe generated
Column card resistance accident.
But Y221MX packer used at present does not have the function of guiding during tubing string above proposes, and also makes glue
Cylinder generates offset during setting, and also makes setting for the packer ineffective, is unfavorable in well and well head works
Development.
Utility model content
The purpose of this utility model is to provide Y221MX washing wells to rotate setting type packer, to solve above-mentioned background skill
The Y221MX packer used at present proposed in art does not have the function of guiding during tubing string above proposes, and also makes packing element
Offset is generated during setting, also makes setting for the packer ineffective, is unfavorable in well and well head work
The problem of development.
To achieve the above object, the utility model provides the following technical solutions: YMX washing well rotates setting type packer,
Including pipe sleeve, centralizer and slips, there is upper center tube in the left end of the pipe sleeve through seamless connection, and the right end of pipe sleeve runs through nothing
Seam is connected with lower center tube, and the end outer ring of the lower center tube is equipped with tubing string, and the inner and outer wall difference of tubing string is uniform
Be provided with thread groove, the centralizer is fixedly welded on the outer wall of lower center tube, the end of the tubing string be fixedly welded with every
Ring, and the inside of spacer ring, through track joint pipe body is equipped with, the slips is fixedly welded on the surface of track joint pipe body, and
The end fixed bonding of track joint pipe body has packing element, and the inner wall cooperation of the pipe sleeve is fitted with backwash piston.
Preferably, to be threadedly coupled between the lower center tube and tubing string, and the end outer wall surface of lower center tube is spiral shell
Line shape arrangement, and the number of turns of thread groove is identical as screw thread the number of turns of lower center tube outer wall.
Preferably, the centralizer is disposed with two groups about the substantially symmetrical about its central axis of lower center tube, and the inner wall of centralizer with
The top outer wall of tubing string is bonded to each other, and the inner wall of centralizer is shape of threads arrangement, while the screw thread texture of centralizer inner wall
It is identical as lower center tube outer wall thread texture.
Preferably, the inner wall of the terminus inner and track joint pipe body of the top insertion tubing string of the track joint pipe body is tight
Closely connected conjunction, and the surface of track joint pipe body is fixedly welded with pin shaft, and pin shaft is circular configuration setting.
Preferably, the inner wall of the slips is shaped grooved setting, and the inner wall of slips is arc-shaped structure, and slips
Inner wall curved surface matches with the outer wall curved surface of pin shaft, while the maximum value of pin shaft moving range is identical as the inner wall length of slips,
The slips is one-way type setting.
Compared with prior art, the utility model has the beneficial effects that
1, it in YMX washing well rotation setting type packer, is threadedly coupled, is easy to use between lower center tube and tubing string
Tubing string forward or reverse, can above mention tubing string, certain pressure is imposed to packing element by person, so that tubing string is under the effect of gravity
Compress packing element, Seal Oil annular space, to realize setting for the packer；
2, the screw thread texture of centralizer inner wall is identical as lower center tube outer wall thread texture, has guiding to the orientation of tubing string
It the effect of with correction, avoids packing element from generating offset, avoids setting for the packer ineffective, also avoid external pressure to inside
Air pressure impacts, and mutually gangs up, and is also conducive to the development that user works to well head；
3, pin shaft is circular configuration setting, and under the action of ambient pressure or thrust, track joint pipe body can be risen to
Certain height also presses to compression packing element, and pin shaft has centainly during track joint pipe body rises
Detent effect avoids the packer from sliding during bottom, in favor of increasing the stability after the packer setting
Can, and because the fluting of slips has certain restriction range, during drawing high track joint pipe body, pin shaft is in slips
When sliding up and down in inner wall fluting, and sliding into the top of slips fluting, under the action of pressure and frictional force, pin shaft also will not
Slide downward also not will cause the case where packing element falls off.
Detailed description of the invention
Fig. 1 is the utility model positive structure diagram；
Fig. 2 is the portion A enlarged structure schematic diagram in the utility model Fig. 1.
In figure: 1, pipe sleeve；2, upper center tube；3, lower center tube；4, tubing string；5, centralizer；6, thread groove；7, spacer ring；8,
Track joint pipe body；9, slips；10, pin shaft；11, packing element；12, backwash piston.
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 are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides technical solution referring to FIG. 1-2: Y221MX washing well rotates setting type packer, including
Pipe sleeve 1, upper center tube 2, lower center tube 3, tubing string 4, centralizer 5, thread groove 6, spacer ring 7, track joint pipe body 8, slips 9, pin
There is upper center tube 2 in the left end of axis 10, packing element 11 and backwash piston 12, pipe sleeve 1 through seamless connection, and the right end of pipe sleeve 1 runs through
Seamless connection has lower center tube 3, and the end outer ring of lower center tube 3 is equipped with tubing string 4, and the inner and outer wall difference of tubing string 4 is equal
Even is provided with thread groove 6, and to be threadedly coupled between lower center tube 3 and tubing string 4, and the end outer wall surface of lower center tube 3 is
Shape of threads arrangement, and the number of turns of thread groove 6 is identical with screw thread the number of turns of 3 outer wall of lower center tube, be convenient for user by tubing string 4 just
Turn or invert, tubing string 4 can be mentioned above, certain pressure is imposed to packing element 11, so that tubing string 4 compresses glue under the effect of gravity
Cylinder 11, Seal Oil annular space, to realize setting for the packer；
Centralizer 5 is fixedly welded on the outer wall of lower center tube 3, substantially symmetrical about its central axis arrangement of the centralizer 5 about lower center tube 3
There are two groups, and the inner wall of centralizer 5 and the top outer wall of tubing string 4 are bonded to each other, and the inner wall of centralizer 5 is shape of threads cloth
It sets, while the screw thread texture of 5 inner wall of centralizer is identical as 3 outer wall thread texture of lower center tube, during rotating tubing string 4,
Have effects that be oriented to and correct to the orientation of tubing string 4, avoids packing element 11 from generating offset, avoid the packer sets effect not
It is good, also external pressure is avoided to impact air pressure inside, and mutually gang up, is also conducive to the development that user works to well head,
The end of tubing string 4 is fixedly welded with spacer ring 7, and the inside of spacer ring 7 is through being equipped with track joint pipe body 8；
Slips 9 is fixedly welded on the surface of track joint pipe body 8, and the end fixed bonding of track joint pipe body 8 has glue
The inner wall of cylinder 11, the terminus inner and track joint pipe body 8 of the top insertion tubing string 4 of track joint pipe body 8 fits closely, and rail
The surface of mark joint pipe body 8 is fixedly welded with pin shaft 10, and pin shaft 10 is circular configuration setting, in ambient pressure or thrust
Under the action of, track joint pipe body 8 can rise to certain height, also press to compression packing element 11, and pin shaft 10 exists
Track joint pipe body 8 has effects that certain detent during rising, and the packer is avoided to slide during bottom
Dynamic, in favor of increasing the stability after the packer setting, the inner wall of slips 9 is shaped grooved setting, and the inner wall of slips 9 is
Arc-shaped structure, and the inner wall curved surface of slips 9 matches with the outer wall curved surface of pin shaft 10, while 10 moving range of pin shaft is most
Big value is identical as the inner wall length of slips 9, and slips 9 is one-way type setting, because the fluting of slips 9 has certain restriction range,
During drawing high track joint pipe body 8, pin shaft 10 slides up and down in the inner wall fluting of slips 9, and slides into slips 9 and open
When the top of slot, under the action of pressure and frictional force, pin shaft 10 also will not slide downward, also not will cause what packing element 11 fell off
The inner wall cooperation of situation, pipe sleeve 1 is fitted with backwash piston 12.
Working principle: setting type packer is rotated for this kind of Y221MX washing well, it is necessary first to when setting, upper lifting pipe post
4, it rotates forward tubing string 4 three-five and encloses, because the end outer wall of lower center tube 3 is shape of threads arrangement, centralizer 5 commutates track at lower center
The end of pipe 3 moves up along casing, while centralizer 5 is also rotated with the rotation of tubing string 4, during rotating tubing string 4,
Have effects that be oriented to and correct to the orientation of tubing string 4, packing element 11 is avoided to generate offset, when then transferring tubing string 4, centralizer 5
Because frictional force will not move, track joint pipe body 8 is moved up and is slided in the groove of slips 9 by pin shaft 10, until pin shaft 10
The inboard wall groove of end and slips 9 fits closely place, and blocks that lower center tube 3 is motionless, and packing element 11 is in 4 gravity of tubing string at this time
Lower compression packing element 11, Seal Oil annular space, setting can be completed, and secondly when positive injection operation, pump-in pressure pushes upper center tube 2, prevent
Only pipe sleeve 1 moves up, and when anti-flushing well, and flushing fluid enters from pipe sleeve 1 pushes 12 uplink of backwash piston to open backwash channel, through upper
The backwash channel lower center tube 3 of central tube 2 can carry out anti-flushing well until well head is returned out in oil pipe in 3 tail portion of lower center tube
Work, when finally unsealing, upper lifting pipe post 4 moves down together with lower center tube 3, and pin shaft 10 slides into original position in the groove of slips 9,
It can realize deblocking, complete the use process of entire Y221MX washing well rotation setting type packer like this.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1.Y221MX washing well rotates setting type packer, including pipe sleeve (1), centralizer (5) and slips (9), it is characterised in that:
The left end of the pipe sleeve (1) has upper center tube (2) through seamless connection, and the right end of pipe sleeve (1) has in lower through seamless connection
The end outer ring of heart pipe (3), the lower center tube (3) is equipped with tubing string (4), and the inner and outer wall difference of tubing string (4) is uniform
Be provided with thread groove (6), the centralizer (5) is fixedly welded on the outer wall of lower center tube (3), the end of the tubing string (4)
It is fixedly welded with spacer ring (7), and the inside of spacer ring (7), through being equipped with track joint pipe body (8), the slips (9) is fixed to weld
The surface in track joint pipe body (8) is connect, and the end fixed bonding of track joint pipe body (8) has packing element (11), the pipe sleeve
(1) inner wall cooperation is fitted with backwash piston (12).
2. Y221MX washing well according to claim 1 rotates setting type packer, it is characterised in that: the lower center tube
(3) to be threadedly coupled between tubing string (4), and the end outer wall surface of lower center tube (3) is that shape of threads is arranged, and thread groove
(6) the number of turns is identical as screw thread the number of turns of lower center tube (3) outer wall.
3. Y221MX washing well according to claim 1 rotates setting type packer, it is characterised in that: the centralizer
(5) two groups, and the top outer wall of the inner wall of centralizer (5) and tubing string (4) are disposed with about the substantially symmetrical about its central axis of lower center tube (3)
It is bonded to each other, and the inner wall of centralizer (5) is shape of threads arrangement, while the screw thread texture of centralizer (5) inner wall and lower center
It is identical to manage (3) outer wall thread texture.
4. Y221MX washing well according to claim 1 rotates setting type packer, it is characterised in that: the track connector
The inner wall of the terminus inner and track joint pipe body (8) of top insertion tubing string (4) of tube body (8) fits closely, and track connector
The surface of tube body (8) is fixedly welded with pin shaft (10), and pin shaft (10) is circular configuration setting.
5. Y221MX washing well according to claim 4 rotates setting type packer, it is characterised in that: the slips (9)
Inner wall be shaped grooved setting, and the inner wall of slips (9) is arc-shaped structure, and the inner wall curved surface and pin shaft of slips (9)
(10) outer wall curved surface matches, while the maximum value of pin shaft (10) moving range is identical as the inner wall length of slips (9), described
Slips (9) is one-way type setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107546.5U CN209654006U (en) | 2019-01-23 | 2019-01-23 | Y221MX washing well rotates setting type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107546.5U CN209654006U (en) | 2019-01-23 | 2019-01-23 | Y221MX washing well rotates setting type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654006U true CN209654006U (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107546.5U Active CN209654006U (en) | 2019-01-23 | 2019-01-23 | Y221MX washing well rotates setting type packer |
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| CN (1) | CN209654006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395990A (en) * | 2020-05-21 | 2020-07-10 | 莱西市鑫喆工程技术服务中心 | Packer |
-
2019
- 2019-01-23 CN CN201920107546.5U patent/CN209654006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395990A (en) * | 2020-05-21 | 2020-07-10 | 莱西市鑫喆工程技术服务中心 | Packer |
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