CN208073419U - Packer (CN) - Google Patents
Packer (CN) Download PDFInfo
- Publication number
- CN208073419U CN208073419U CN201820345407.1U CN201820345407U CN208073419U CN 208073419 U CN208073419 U CN 208073419U CN 201820345407 U CN201820345407 U CN 201820345407U CN 208073419 U CN208073419 U CN 208073419U
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- Prior art keywords
- sliding sleeve
- packing element
- wall
- central tube
- packer according
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000012856 packing Methods 0.000 claims description 87
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 18
- 239000012530 fluid Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The application provides a packer, it includes: the outer wall of the central pipe is provided with a backstop part; the sliding sleeve is movably sleeved on the outer wall of the central pipe, and an annular channel is formed between the sliding sleeve and the central pipe; the rubber cylinder is sleeved on the outer wall of the sliding sleeve and can be compressed when the sliding sleeve moves towards the backstop part; the deblocking piece is connected to the sliding sleeve through a first shear pin and can be connected with the stopping part after the rubber barrel is compressed, and air pressure in an oil sleeve annulus close to one side of the stopping part after the rubber barrel is compressed can be transmitted to the first shear pin through an annular channel so as to apply acting force towards the stopping part to the first shear pin; the outer wall of the sliding sleeve is sleeved with an outer sleeve, the inner wall of the outer sleeve is provided with a stopping part, and the deblocking piece is arranged between the sliding sleeve and the outer sleeve. The embodiment of the application provides a packer capable of improving sealing performance.
Description
Technical field
This application involves a kind of oil well delamination oil recovery technique field more particularly to a kind of packers.
Background technology
Packer can be used for sealing sleeve pipe, to carry out seperated layer water injection or layered gas-injection.
Packer in the prior art generally comprises packing element, solution sealing, and solution sealing mechanism is generally shear pin, which is not breaking
Can apply to packing element in the case of splitting make it be maintained at the active force for the state being radially expanded, with can Seal Oil lantern ring
It is empty；And after shear pin fracture, which disappears, and to make packing element restore to the original state, so completes deblocking.But due to packing element
Upper surface and lower face gas load suffered in oil jacket annular space are uneven, and suffered by the upper surface and lower face of packing element
To the pressure difference of gas can be acted on shear pin by packing element, especially when the pressure difference is larger and with packing element to the anti-of shear pin
When force direction is identical, by easy cutting shear pin, therefore existing packer sealing performance is low.
Utility model content
In view of this, the application embodiment provides a kind of packer that can improve sealing performance.
To achieve the above object, this application provides the following technical solutions：A kind of packer, including：Central tube, it is described
It is provided with stop portion on the outer wall of central tube；Sliding sleeve is movably sheathed on the outer wall of central tube, the sliding sleeve with
It is formed with circular passage between the central tube；Packing element is sheathed on the outer wall of the sliding sleeve, and the packing element can be described
Sliding sleeve is compressed when being moved towards the stop portion；Sealing is solved, the solution sealing is connected to the sliding by the first shear pin
It puts on, the solution sealing can be connected after the packing element is compressed with the stop portion, and close to institute after packing element compression
The air pressure stated in the oil jacket annular space of stop portion side is transferred to by the circular passage on first shear pin, with to described
First shear pin applies the active force towards the stop portion.
As a preferred embodiment, housing is arranged on the outer wall of the sliding sleeve, on the inner wall of the housing
It is provided with the stop portion, the solution sealing is set between the sliding sleeve and the housing.
As a preferred embodiment, the packing element is located at the lower section of the housing, outer put on is provided with out
Hole, the trepanning are connected with one end of the circular passage.
As a preferred embodiment, piston is provided with below the sliding sleeve, the piston and the sliding
Connection chamber is formed between set, the connection chamber is connected with the other end of the circular passage.
As a preferred embodiment, being provided with stopper section on the central tube, the sliding sleeve is located at described stop
The side of stopper is formed between the sliding sleeve and the stopper section and suppresses chamber, and the sliding sleeve can suppress intracavitary described
Pressure under towards the stop portion move.
As a preferred embodiment, piston is provided between the sliding sleeve and the stopper section, the piston
It is formed between the sliding sleeve and is connected to chamber, chamber is suppressed described in formation between the piston and the stopper section, it is described to suppress chamber
It is connected to chamber with described and is not connected to.
As a preferred embodiment, being arranged with lower contact on the outer wall of the central tube second end, connect under described
The end face at first end and the piston are facing, to form the stopper section.
As a preferred embodiment, connector sleeve is arranged on the outer wall of the lower contact, the one of the connector sleeve
End is connected with the sliding sleeve, and the other end of the connector sleeve is connected by the second shear pin with the lower contact.
As a preferred embodiment, the piston is between the connector sleeve and the central tube.
As a preferred embodiment, the outer wall of the solution sealing is provided with the first groove, in first groove
It is provided with clamp spring, the stop portion is for the second groove for clamp spring insertion.
As a preferred embodiment, top connection is connected in the first end of the central tube, the central tube
It is connected with lower contact in second end, outwardly extending first position limiting convex ring is provided in the top connection, is set in the lower contact
It is equipped with outwardly extending second position limiting convex ring, the outer diameter of first position limiting convex ring and second position limiting convex ring is all higher than described
Outer diameter before packing element expansion.
As a preferred embodiment, the packing element is multiple, multiple packing elements are arranged at intervals at institute along the vertical direction
It states on sliding sleeve, and spacer ring is provided between the adjacent packing element.
As a preferred embodiment, housing is arranged on the outer wall of the sliding sleeve, the housing and the glue
It is provided with separator between cylinder.
As a preferred embodiment, being arranged with the gear for being limited to the separator on the sliding sleeve
Ring.
As a preferred embodiment, the baffle ring is located at first end of the separator in face of the central tube
Side is provided with limit protrusion on the outer wall of the sliding sleeve, and one end of the baffle ring offsets with the limit protrusion, the gear
The other end of ring offsets with the separator.
As a preferred embodiment, the outer wall upper edge of the sliding sleeve is circumferentially provided with outwardly extending adjusting
Ring, the regulation ring are located at the lower section of the packing element and offset with the packing element.
By above technical solution, the close stop portion after being compressed by packing element of the packer described in the application embodiment
Air pressure in the oil jacket annular space of side is transferred to by circular passage on the first shear pin, to apply to the first shear pin towards retaining
The active force in portion, realizes the active force for the gas being subject in packing element upper surface and the active force of gas that lower face is subject to is pressed
Under the action of force difference, the active force suffered by the first shear pin can be reduced, is cut so as to avoid the first shear pin when packing element is set
Disconnected situation so improves the sealing performance of packing element.Such the application embodiment, which provides, a kind of can improve sealing performance
Packer.
Description of the drawings
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, the shape and proportional sizes etc. of each component in figure are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is the structural schematic diagram of the packer of the application embodiment.
Specific implementation mode
Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear
Chu is fully described by, it is clear that described embodiment is only a part of embodiment of the application, rather than whole realities
Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall in the protection scope of this application.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
Referring to Fig. 1, a kind of packer that present embodiment is provided comprising：Central tube 11, the central tube 11
Stop portion is provided on outer wall；Sliding sleeve 19 is movably sheathed on the outer wall of central tube 11, the sliding sleeve 19 and institute
It states and is formed with circular passage 21 between central tube 11；Packing element 23 is sheathed on the outer wall of the sliding sleeve 19, the packing element 23
It can be compressed when the sliding sleeve 19 is moved towards the stop portion；Sealing 49 is solved, the solution sealing 49 passes through the first shear pin
53 are connected on the sliding sleeve 19, and the solution sealing 49 can be connected after the packing element 23 is compressed with the stop portion,
And the air pressure after the compression of packing element 23 in the oil jacket annular space of the stop portion side passes through the circular passage 21 and passes
It is handed on first shear pin 53, to apply the active force towards the stop portion to first shear pin 53.
In use, the first end 13 of central tube 11 and second end 15 are connected with external tubing string respectively first, so as to
Packer described in the application embodiment is lowered into the oil reservoir of downhole designs by external tubing string.Then pass through external tubing string
High-pressure fluid is injected into central tube 11, intracavitary is suppressed to which high-pressure fluid can flow into, so that sliding sleeve 1919 is suppressing chamber
It is moved towards stop portion under pressure, to compress packing element 23, since solution sealing 49 is connected to by the first shear pin 53 on sliding sleeve 19,
Solution sealing 49 can be connected after packing element 23 is compressed with stop portion, and close to the oil jacket ring of stop portion side after the compression of packing element 23
Air pressure in sky is transferred to by circular passage 21 on the first shear pin 53, to apply the work towards stop portion to the first shear pin 53
Firmly.Since packing element 23 applies reaction force along the first shear pin of direction pair 53 away from stop portion upon compression, so working as packing element
When the active force for the gas that 23 upper surfaces are subject to is more than the active force for the gas that lower face is subject to, the pressure difference of the gas can pass through
Packing element 23 acts on the first shear pin 53, to apply the active force towards stop portion to the first shear pin 53, so the pressure of gas
The direction of the first shear pin of difference pair 53 is with packing element 23 to the reaction force direction of the first shear pin 53 on the contrary, so the pressure difference can be reduced
Active force suffered by first shear pin 53 so avoids the case where the first shear pin 53 is cut when packing element 23 is set；And work as
When the active force for the gas that 23 upper surface of packing element is subject to is less than the active force for the gas that lower face is subject to, the pressure difference energy of the gas
It directly acts on packing element 23, to reduce reaction force of the packing element 23 to the first shear pin 53, so the pressure difference can reduce first
Active force suffered by shear pin 53 so avoids the case where the first shear pin 53 is cut when packing element 23 is set.
Close retaining after the compression of packing element 23 is passed through by the packer described in the application embodiment it can be seen from above scheme
Air pressure in the oil jacket annular space of portion side is transferred to by circular passage 21 on the first shear pin 53, to apply to the first shear pin 53
Towards the active force of stop portion, the active force for the gas being subject in 23 upper surface of packing element is realized and gas that lower face is subject to
Under the action of the pressure difference of active force, the active force suffered by the first shear pin 53 can be reduced, is existed so as to avoid the first shear pin 53
The case where being cut when packing element 23 is set so improves the sealing performance of packing element 23.
As shown in Figure 1, in the present embodiment, central tube 11 is axially through central tube 11 has opposite facing in an axial direction
First end 13, i.e. upper end and second end 15 shown in Fig. 1, i.e. lower end, the first end 13 and second end 15 shown in Fig. 1
It is respectively used to be connected with external tubing string, on the one hand can will be under packer lower going-into-well described herein by external tubing string
On the other hand the oil reservoir of design can inject high-pressure fluid, so that packing element 23 is set by external tubing string into central tube 11.
It is provided on the outer wall of central tube 11 close to the stopper section 17 of its second end 15.In one embodiment, the of central tube 11
Lower contact 63 is arranged on two end outer walls, the end face and the end face of 25 other end of piston of one end of lower contact 63 are facing, with shape
At stopper section 17.It is provided with through hole 27 on the side wall of central tube 11, is connected in the through hole 27 and central tube 11.
In the present embodiment, sliding sleeve 19 is movably sheathed on the outer wall of central tube 11, and sliding sleeve 19 is located at only
Stopper 17 faces the side of first end 13, is slided to be entered by through hole 27 after high-pressure fluid enters in central tube 11
Between set 19 and stopper section 17, such sliding sleeve 19 can be under the pressure of high-pressure fluid towards the first end close to central tube 11
13, namely towards the top in Fig. 1, it is mobile.Circular passage 21 is formed between sliding sleeve 19 and central tube 11.The circular passage
21 both ends open.
In the present embodiment, packing element 23 is sheathed on the outer wall of sliding sleeve 19.Packing element 23 can sliding sleeve 19 towards by
The first end 13 of nearly central tube 11, namely towards the top in Fig. 1, when mobile, towards the first end 13 close to central tube 11,
Packing element 23 is compressed towards the top in Fig. 1 so that packing element 23 is radially expanded, to insulate between external tubing string and casing
Oil jacket annular space.
Preferably, in order to increase the operating pressure that packing element 23 can bear, packing element 23 is multiple, and multiple packing elements 23 are vertically
Direction is arranged at intervals on sliding sleeve 19, and spacer ring 29 is provided between adjacent packing element 23.
In one embodiment, it is arranged with housing 31 on the outer wall of sliding sleeve 19, is provided on sliding sleeve 19 positioned at outer
Separator 33 between set 31 and packing element 23, one end of separator 33 and the other end of housing 31 offset, separator 33 it is another
One end with packing element 23 is held to offset.To when sliding sleeve 19 towards the first end 13 close to central tube 11, namely towards in Fig. 1
Top, when mobile, one end of packing element 23 is limited by separator 33, and the other end of packing element 23 is towards close to the first of central tube 11
End 13, namely compressed towards the top in Fig. 1.Further, it is connected with top connection 61 in the first end of central tube 11, the connection
Mode is to be threadedly coupled, but the connection type is without being limited thereto, can also be other connection types, such as welding, integrated molding
Deng.The threaded one end of housing 31 is connected on the outer wall of top connection 61.
Preferably, upward with the one end for guaranteeing to limit packing element 23 in order to increase active force of the separator 33 to packing element 23
It is mobile, the baffle ring 35 that the first end 13 for limiting separator 33 towards central tube 11 moves is arranged on sliding sleeve 19.Specifically
Ground, baffle ring 35 are located at the side that separator 33 faces the first end 13 of central tube 11, are provided with and are located on the outer wall of sliding sleeve 19
The limit protrusion 37 of 35 top of baffle ring, one end and the limit protrusion 37 of baffle ring 35 offset, the other end and the separator 33 of baffle ring 35
One end offset.
In the present embodiment, piston 25 is movably arranged at outside central tube 11, and piston 25 be located at sliding sleeve 19 with
Between stopper section 17, piston 25 can be such that packing element 23 is compressed when moving.
In one embodiment, it is formed between piston 25 and stopper section 17 and suppresses chamber, this suppresses chamber and 27 phase of through hole
Connection suppresses intracavitary, to push piston 25 to move up to which the high-pressure fluid in central tube 11 can be flowed by through hole 27.
It being formed between piston 25 and sliding sleeve 19 and is connected to chamber, sliding sleeve 19 can be moved under the pressure for suppressing intracavitary to compress packing element 23,
Connection chamber and the case where suppress chamber and be not connected to, so as to avoid high-pressure fluid and then be connected to intracavitary, and avoid packing element 23 and compress
The air pressure in the oil jacket annular space of stop portion side is transmitted by circular passage and suppresses intracavitary afterwards, and cannot be transferred to sliding
On the lower end of set 19, so that cannot be transferred on the first shear pin 53, to which the first shear pin of no normal direction 53 applies towards stop portion
Active force.
Specifically, connector sleeve 39 is arranged on the outer wall of lower contact 63, one end of connector sleeve 39 is connected with sliding sleeve 19,
The connection type is to be threadedly coupled, but the connection type is without being limited thereto, can also be other connection types, such as welding, one
It is body formed etc..Piston 25 is between connector sleeve 39 and central tube 11.Further, piston 25 and central tube 11 and connector sleeve 39
Between be both provided with sealing ring 41, so as to avoid suppress intracavitary liquid flow into connection intracavitary；And it ensure that 25 upper end of piston
The air pressure in face acts on the lower face of sliding sleeve 19.Preferably, connector sleeve 39 and casing phase during going into the well in order to prevent
Contact, to compress packing element 23 so that packing element 23 is set, and the other end of connector sleeve 39 passes through the second shear pin 43 and 63 phase of lower contact
Connection.When deblocking, connector sleeve 39 moves up under the pressure effect for suppressing intracavitary, to cut the second shear pin 43.
Further, trepanning 45 is provided on housing 31, trepanning 45 is connected with one end of circular passage 21, to annular
Channel 21 can be connected by trepanning 45 with the outside of housing 31, after insulating oil jacket annular space to packing element 23,23 top of packing element
Gas in oil jacket annular space can be entered by trepanning 45 in circular passage 21, and then act on sliding sleeve 19 by circular passage 21
Lower face on, since the lower end edge of sliding sleeve 19 is circumferentially provided with outwardly extending regulation ring 47, the lower end of packing element 23 and tune
Section ring 47 offsets, to which air pressure suffered on 23 lower face of packing element is transferred to by regulation ring 47 on the first shear pin 53, so
The active force suffered by the first shear pin 53 can be reduced, the feelings cut so as to avoid the first shear pin 53 when packing element 23 is set
Condition so improves the sealing performance of packing element 23.
Further, be provided with solution sealing 49 between sliding sleeve 19 and housing 31, solution sealing 49 by the first shear pin 53 with
Sliding sleeve 19 is connected, and solves and is provided with the first groove 57, the clamp spring 59 being provided in the first groove 57 on the outer wall of sealing 49.Only
It is the second groove for being embedded in for clamp spring 59 to move back portion.Therefore, when sliding sleeve 19 is moved towards stop portion to compress packing element 23
Afterwards, solution sealing 49 is connected with stop portion, so as to make packing element 23 be maintained at the state of expansion, covers annular space with Seal Oil.Deblocking
When, it is only necessary to central tube 11 is above carried, due to being in sealing state between packing element 23 and casing, so housing 31 is in central tube 11
It is moved up under pulling force effect, to cut the first shear pin 53, then packing element 23 restores as former state under the elastic force effect of itself, complete
At deblocking.Preferably, it solves on sealing 49 and is provided with the limiting section 55 to extend internally, one end and 55 phase of limiting section of sliding sleeve 19
It supports.Specifically, the outer wall of solution sealing 49 is provided with further, and connection ring 51 is connected on one end outer wall of sliding sleeve 19, should
Connection type is to be threadedly coupled, but the connection type is without being limited thereto, can also be other connection types, such as welding, one
Molding etc..Solution sealing 49 is connected to by the first shear pin 53 in connection ring 51.
In one embodiment, the second end of central tube 11 is connected with lower contact 63, which is to be threadedly coupled,
But the connection type is without being limited thereto, can also be other connection types, such as welding, integrated molding etc..It is set in top connection 61
It is equipped with outwardly extending first position limiting convex ring 65, outwardly extending second position limiting convex ring 67, the first limit are provided in lower contact 63
The outer diameter of position bulge loop 65 and the second position limiting convex ring 67 is all higher than the outer diameter before packing element 23 expands.To top connection 61 and lower contact 63
Centralizing function can be played to central tube 11, to ensure that, when encountering inclined shaft and horizontal well, the contact between packing element 23 and casing is answered
Power is uniform, to improve the sealing performance of packing element 23.
It should be noted that in the description of the present application, term " first ", " second " etc. are used for description purposes only and distinguish
Between the two and sequencing is not present in similar object, can not be interpreted as indicating or implying relative importance.In addition,
In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part for theme.
Claims (16)
1. a kind of packer, which is characterized in that including：
Central tube is provided with stop portion on the outer wall of the central tube；
Sliding sleeve is movably sheathed on the outer wall of central tube, and ring is formed between the sliding sleeve and the central tube
Shape channel；
Packing element is sheathed on the outer wall of the sliding sleeve, and the packing element can be moved in the sliding sleeve towards the stop portion
When compressed；
Sealing is solved, the solution sealing is connected to by the first shear pin on the sliding sleeve, and the solution sealing can be in the packing element quilt
It is connected with the stop portion after compression, and the air pressure after packing element compression in the oil jacket annular space of the stop portion side
It can be transferred to by the circular passage on first shear pin, to apply the work towards the stop portion to first shear pin
Firmly.
2. packer according to claim 1, it is characterised in that：Housing is arranged on the outer wall of the sliding sleeve, it is described
The stop portion is provided on the inner wall of housing, the solution sealing is set between the sliding sleeve and the housing.
3. packer according to claim 2, it is characterised in that：The packing element is located at the lower section of the housing, described outer
It puts on and is provided with trepanning, the trepanning is connected with one end of the circular passage.
4. packer according to claim 3, it is characterised in that：Piston, the work are provided with below the sliding sleeve
Plug is connected to chamber with formation between the sliding sleeve, and the connection chamber is connected with the other end of the circular passage.
5. packer according to claim 1, it is characterised in that：Stopper section, the sliding are provided on the central tube
Set is formed between the sliding sleeve and the stopper section positioned at the side of the stopper section and suppresses chamber, and the sliding sleeve can be
It is moved towards the stop portion under the pressure for suppressing intracavitary.
6. packer according to claim 5, it is characterised in that：It is provided with work between the sliding sleeve and the stopper section
Plug forms between the piston and the sliding sleeve and is connected to chamber, chamber is suppressed described in formation between the piston and the stopper section,
The chamber of suppressing is connected to chamber and is not connected to described.
7. packer according to claim 6, it is characterised in that：It is arranged with down and connects on the outer wall of the central tube second end
Head, the end face of described lower contact one end and the piston are facing, to form the stopper section.
8. packer according to claim 7, it is characterised in that：Connector sleeve, institute are arranged on the outer wall of the lower contact
The one end for stating connector sleeve is connected with the sliding sleeve, and the other end of the connector sleeve passes through the second shear pin and the lower contact phase
Connection.
9. packer according to claim 8, it is characterised in that：The piston is located at the connector sleeve and the central tube
Between.
10. packer according to claim 1, it is characterised in that：The outer wall of the solution sealing is provided with the first groove, institute
It states and is provided with clamp spring in the first groove, the stop portion is for the second groove for clamp spring insertion.
11. packer according to claim 1, it is characterised in that：It is connected with top connection in the first end of the central tube,
It is connected with lower contact in the second end of the central tube, outwardly extending first position limiting convex ring, institute are provided in the top connection
State and be provided with outwardly extending second position limiting convex ring in lower contact, first position limiting convex ring and second position limiting convex ring it is outer
Diameter is all higher than the outer diameter before the packing element expansion.
12. packer according to claim 1, it is characterised in that：The packing element is multiple, and multiple packing elements are along the vertical direction
It is arranged at intervals on the sliding sleeve, and spacer ring is provided between the adjacent packing element.
13. packer according to claim 1, it is characterised in that：Housing is arranged on the outer wall of the sliding sleeve, it is described
It is provided with separator between housing and the packing element.
14. packer according to claim 13, it is characterised in that：It is arranged on the sliding sleeve for the separation
The baffle ring that part is limited.
15. packer according to claim 14, it is characterised in that：The baffle ring is located at the separator in described
The side of the first end of heart pipe is provided with limit protrusion, one end of the baffle ring and the limit on the outer wall of the sliding sleeve
Protrusion offsets, and the other end of the baffle ring offsets with the separator.
16. packer according to claim 1, it is characterised in that：The outer wall upper edge of the sliding sleeve is circumferentially disposed oriented
The regulation ring of outer extension, the regulation ring are located at the lower section of the packing element and offset with the packing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345407.1U CN208073419U (en) | 2018-03-14 | 2018-03-14 | Packer (CN) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345407.1U CN208073419U (en) | 2018-03-14 | 2018-03-14 | Packer (CN) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208073419U true CN208073419U (en) | 2018-11-09 |
Family
ID=64046044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820345407.1U Active CN208073419U (en) | 2018-03-14 | 2018-03-14 | Packer (CN) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208073419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755163A (en) * | 2022-05-05 | 2022-07-15 | 西南石油大学 | Experimental system for representing interlayer interference degree of reservoir |
-
2018
- 2018-03-14 CN CN201820345407.1U patent/CN208073419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755163A (en) * | 2022-05-05 | 2022-07-15 | 西南石油大学 | Experimental system for representing interlayer interference degree of reservoir |
| CN114755163B (en) * | 2022-05-05 | 2024-05-31 | 西南石油大学 | An experimental system for characterizing the degree of interference between reservoir layers |
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