CN206376815U - Tail tube hanging packer - Google Patents
Tail tube hanging packer Download PDFInfo
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- CN206376815U CN206376815U CN201621395302.4U CN201621395302U CN206376815U CN 206376815 U CN206376815 U CN 206376815U CN 201621395302 U CN201621395302 U CN 201621395302U CN 206376815 U CN206376815 U CN 206376815U
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Abstract
The utility model provides a kind of tail tube hanging packer, wherein, exterior central tube coaxial sleeve is on inner central tube, inside and outside pipe connections connection exterior central tube and inner central tube, the upper end connection of top connection and inner central tube, piston component, packing element, cone, slips and release set are sequentially sleeved on the outer wall of exterior central tube from top to bottom, cone has one to be used for the inclined-plane with the top cooperation of slips, the top of slips is arranged on the inclined-plane of cone, cam bit is sheathed on the outer wall of exterior central tube, the first end of connecting rod and the upper end of piston component are connected, distance is provided with the groove for being additionally provided with and matching with the bottom shape of cam bit at the position pre-determined distance of cam bit on exterior central tube, groove is used for the accommodating cam bit in deblocking, so as to, realize sand control and improve oil well production efficiency.
Description
Technical field
The utility model is related to mechanical technique, more particularly to a kind of tail tube hanging packer.
Background technology
In the recovery process of Oil/gas Well, sand production it is very harmful.Therefore, how effectively to prevent in oil recovery process
Sand, guarantee oil reservoir production, as the technical problem for being badly in need of solving.
At present, for Tarim Oilfield carbonate wellblock, during recovering the oil, the migration of the grains of sand in carbonate wall reservoir or
Person's reservoir grains of sand to be formed that collapse enter oil pipe, even cause part electric pump oil pumping depth well pump to damage to oil pipe formation obstruction, make
The problems such as even stopping production is reduced into oil recovery output.
But, not effective method solves the above problems at present.
Utility model content
The utility model provides a kind of tail tube hanging packer, to realize sand control and improve oil well production efficiency.
The utility model provides a kind of tail tube hanging packer, including：Top connection, inner central tube, exterior central tube, connecting rod,
Piston component, packing element, cone, slips, inside and outside pipe connections, cam bit and release set；Wherein,
The exterior central tube coaxial sleeve is on the inner central tube, the lower end of the exterior central tube and the inner central tube
Connected by the inside and outside pipe connections, the top connection is connected with the upper end of the inner central tube, it is the piston component, described
Packing element, the cone, the slips and release set are sequentially sleeved on the outer wall of the exterior central tube from top to bottom；It is described
Cone has one to be used for the inclined-plane with the top cooperation of the slips, and the top of the slips is arranged on the inclined-plane of the cone；
The bottom of the slips is used for union tail；The cam bit is sheathed on the outer wall of the exterior central tube, described for connecting
Exterior central tube covers with the release；The first end of the connecting rod is connected with the upper end of the piston component, for by it is described it is interior in
Pressure transmission in heart pipe is to the piston component, and the piston component extrudes the glue after the power transmitted by the connecting rod
Cylinder and the cone, the slips are hung on internal surface of sleeve pipe for being propped up recoil in the presence of the inclined-plane of the cone；Institute
State distance on exterior central tube and be provided with the bottom shape phase being additionally provided with the position pre-determined distance of cam bit with the cam bit
The groove of matching, the groove is used to house the cam bit in deblocking.
In above-mentioned tail tube hanging packer, the piston component includes：Cylinder sleeve, upper piston and lower piston；Wherein,
The cylinder sleeve is sheathed on the outer wall of the exterior central tube, the upper piston be arranged at the cylinder sleeve with it is described it is outer in
In cavity between the outer wall of heart pipe, the lower piston is arranged in the cavity and stretches out the cavity, the upper piston with
The lower piston connection, one end that the lower piston stretches out the cavity is contacted with the packing element.
In above-mentioned tail tube hanging packer, the piston component also includes：Lock ring, the lock ring is arranged at the upper work
On the outer wall of exterior central tube between plug and the lower piston, the lock ring on the face of the wall contacts of the exterior central tube with setting
It is equipped with the first sawtooth, the relevant position of the outer wall of the exterior central tube is provided with the second sawtooth, first sawtooth and described the
Two sawtooth are engaged, so that the lower piston can only be moved downward.
In above-mentioned tail tube hanging packer, the piston component also includes pin, and the pin is used to connect the cylinder
Set and the lower piston.
In above-mentioned tail tube hanging packer, the tail tube hanging packer also includes：Hydraulic anchor button component, the water
Power anchor button assembly set is on the inner central tube, and the lower end of the hydraulic anchor button component connects with the second end of the connecting rod
Connect.
In above-mentioned tail tube hanging packer, the hydraulic anchor button component includes：Hydraulic anchor button seat, button tabletting,
Button and spring, the hydraulic anchor button cover for seat is on the inner central tube, the button tabletting, the button and the bullet
Spring may be contained within the cavity of the hydraulic anchor button seat, and the button tabletting is used to the button being fixed on the hydraulic anchor
On the inwall of button seat, the spring is used for the power that resilience is provided for the button.
In above-mentioned tail tube hanging packer, the tail tube hanging packer also includes bushing, and the bushing is sheathed on institute
State on the outer wall of exterior central tube, the packing element is sheathed on the bushing, a part for the cone is sheathed on the bushing.
In above-mentioned tail tube hanging packer, the tail tube hanging packer includes 3 slips, the tail tube hanging
Packer also includes：Slips back-up ring, the slips back-up ring is arranged between the slips and release set, for fixing 3
The slips.
In above-mentioned tail tube hanging packer, the inside and outside pipe connections are pin.
In above-mentioned tail tube hanging packer, the material of the packing element is 4 third fluorubber.
The utility model provide tail tube hanging packer, by set top connection, inner central tube, exterior central tube, connecting rod,
Piston component, packing element, cone, slips, inside and outside pipe connections, cam bit and release set, wherein, exterior central tube coaxial sleeve is located at interior
On central tube, the lower end of exterior central tube and inner central tube is connected by inside and outside pipe connections, the upper end of top connection and inner central tube
Connection, piston component, packing element, cone, slips and release set are sequentially sleeved on the outer wall of exterior central tube from top to bottom；Cone has
One is used for the inclined-plane with the top cooperation of slips, and the top of slips is arranged on the inclined-plane of cone；The bottom of slips is used to connect
Tail pipe；Cam bit is sheathed on the outer wall of exterior central tube, is covered for connecting exterior central tube with release；The first end and piston of connecting rod
The upper end connection of component, for by the pressure transmission in inner central tube to piston component, piston component is being transmitted by connecting rod
Packing element and cone are extruded after power, slips is hung on internal surface of sleeve pipe for being propped up recoil in the presence of the inclined-plane of cone；In outer
Distance is provided with the groove for being additionally provided with and matching with the bottom shape of cam bit at the position pre-determined distance of cam bit on heart pipe,
Groove is used for the accommodating cam bit in deblocking, realizes following technique effect：Firstth, can be outstanding by the tail tube hanging packer
Tail pipe is hung, tail tube hanging operating cost is reduced；Secondth, after the tail tube hanging separator is set, its tail pipe hung can be to prevent
Only the silt in barefoot interval enters in oil pipe, and then, prevent silt from blocking oil pipe and damage electric pump, improve oil well production effect
Rate simultaneously reduces production cost；3rd, the tail tube hanging packer is by setting cam bit, solution big envelope and groove, it is possible to achieve
Deblocking, meets deblocking demand.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation for the tail tube hanging packer that Fig. 1 provides for the utility model embodiment；
The application scenarios schematic diagram for the tail tube hanging packer that Fig. 2 provides for the utility model embodiment.
Reference：
1：Top connection；
2：Hydraulic anchor button seat；
3：Inner central tube；
4：Connecting rod；
5：Screw；
6：Spring：；
7：Button tabletting；
8：Button；
9：Cylinder sleeve：；
10：Upper piston；
11：Exterior central tube；
12：Lock ring；
13：Pin；
14：Lower piston；
15：Bushing；
16：Packing element；
17：Cone；
18：Slips；
19：Slips back-up ring；
20：Inside and outside pipe connections；
21：Cam bit；
22：Release set；
23：Screw；
24：Groove；
100：Tail tube hanging packer；
200：Sleeve pipe；
300：Barefoot interval；
400：Tail pipe.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing, " second ", " the 3rd "
And the (if present) such as " the 4th " is for distinguishing similar object, without for describing specific order or precedence.
It should be appreciated that the data so used can be exchanged in the appropriate case, so as to embodiment example of the present utility model described herein
If being implemented with the order in addition to those for illustrating or describing herein.In addition, term " comprising " and " having " and
Their any deformation, it is intended that covering is non-exclusive to be included, for example, contain the process of series of steps or device, method,
System, product or equipment are not necessarily limited to those steps clearly listed or device, but may include not list clearly or
For the intrinsic other steps of these processes, method, product or equipment or device.
The technical solution of the utility model is described in detail with specifically embodiment below.These are specific below
Embodiment can be combined with each other, and may be repeated no more for same or analogous concept or process in some embodiments.
The structural representation for the tail tube hanging packer that Fig. 1 provides for the utility model embodiment.Fig. 2 is the utility model
The application scenarios schematic diagram for the tail tube hanging packer that embodiment is provided.
As shown in Fig. 2 in actual use, the tail tube hanging packer 100 that the utility model is provided is hung with tail pipe
400.Tail tube hanging packer 100 is set in the predetermined position of sleeve pipe 200.Tail pipe 400 is located at barefoot interval 300.In completion
During, the top of barefoot interval 300 is provided with sleeve pipe 200.
In actual use, the tail tube hanging packer 100 for being hung with tail pipe 400 is lowered into by Back-off Pipe String
The predetermined position of sleeve pipe 200, and tail tube hanging packer 100 is set in the sleeve pipe 200.Now, positioned at tail tube hanging
The tail pipe 400 of the bottom of packer 100 is placed exactly in barefoot interval 300.Optionally, tail pipe 400 can be provided with anti-sand hole
Screen casing.So, in follow-up oil recovery process, crude oil can be entered in tail pipe 400 by the anti-sand hole on tail pipe 400,
And the silt in barefoot interval 300 is then filtered outside tail pipe 400 by tail pipe 400, it is impossible to enter in tail pipe 400.Meanwhile, set
Tail tube hanging packer 100 in sleeve pipe 200, can seal the annular space between tail tube hanging packer 100 and sleeve pipe 200,
So that the silt of barefoot interval 300 can not be entered in oil pipe by the gap between sleeve pipe 200 and tail tube hanging packer 100,
And then be prevented effectively from obstruction to oil pipe, prevent the problem of electric pump is damaged from producing, sand controlling result is reached, so as to ensure that oil reservoir is given birth to
Production.In summary, the tail tube hanging packer 100 that the present embodiment is provided plays fixed effect to tail pipe 400, i.e., by by tail
Pipe hanging packer 100 is set in sleeve pipe 200 so that the tail pipe 400 being connected with the tail tube hanging packer hangs over open hole well
In section 300, and then the cost of the suspension operation of tail pipe 400 is reduced, and realize the purpose of sand control.
As shown in figure 1, the tail tube hanging packer that the utility model is provided includes：Top connection 1, inner central tube 3, outer center
Pipe 11, connecting rod 4, piston component, packing element 16, cone 17, slips 18, inside and outside pipe connections 20, cam bit 21 and release set 22.
Wherein, the coaxial sleeve of exterior central tube 11 is on inner central tube 3, and the lower end of exterior central tube 11 and inner central tube 3 passes through
Inside and outside pipe connections 20 are connected.Top connection 1 is connected with the upper end of inner central tube 3.In the present embodiment, with the tail pipe hanging packing
Device is in use, be upper close to the position of well head, under the position away from well head is.Exterior central tube 11 and inner central tube 3 are hollow
Pipe.One end of top connection 1 is connected with the upper end of inner central tube 3, and the other end of top connection 1 is used to connect Back-off Pipe String.On connect
First 1 can be threadedly coupled with the connected mode of the upper end of inner central tube 3.Optionally, inside and outside pipe connections 20 are pin.
Piston component, packing element 16, cone 17, slips 18 and release set 22 are sequentially sleeved at exterior central tube 11 from top to bottom
On outer wall.Cone 17 has one to be used for the inclined-plane with the top cooperation of slips 18, and the top of slips 18 is arranged at the inclined-plane of cone 17
On.The bottom of slips 18 is used for union tail.Cam bit 21 is sheathed on the outer wall of exterior central tube 11, for connecting exterior central tube
11 cover 22 with release.The upper end of the first end of connecting rod 4 and piston component is connected, for by the pressure transmission in inner central tube 3 extremely
Piston component.Piston component extrudes packing element 16 and cone 17 after the power transmitted by connecting rod 4.Slips 18 is used in cone 17
Recoil is propped up in the presence of inclined-plane to be hung on internal surface of sleeve pipe.On exterior central tube 11 distance be provided with cam bit 21 position preset
The groove 24 matched with the bottom shape of cam bit is additionally provided with distance, groove 24 is used for the accommodating cam bit in deblocking
21。
Connecting rod 4 can be connected with inner central tube 3, by the pressure transmission in inner central tube 3 into piston component, make piston group
Part extrudes packing element 16 after stress.Cone 17 is the part that wide, bottom becomes narrow gradually on one, therefore, has an inclined-plane.Slips 18
A part be arranged on the inclined-plane, it is possible to the inclined-plane relative motion.Packing element 16 can in the presence of piston component edge
The axial direction of exterior central tube 11 is moved downward on the outer wall of exterior central tube 11, and is expanded to and is contacted with internal surface of sleeve pipe, realizes packing.
Cone 17 can be moved in the presence of packing element 16 along the axial direction of exterior central tube 11 on the outer wall of exterior central tube 11.Cone 17 exists
After moving downward, slips 18 can be propped up, set in sleeve pipe in the presence of the inclined-plane of cone 17, enable packing element 16 complete
Set entirely, so as to realize suspension tail pipe operation.
Slips 18 can be fixed by screw 23.Screw 23 can be interior hexagonal cup head screw.
Optionally, the material of packing element 16 is 4 third fluorubber (AFLAS).
AFLAS packing element energy high temperature resistants, it is possible to achieve setting under hot environment.Improve making for the tail tube hanging packer
With scope and reliability.
Optionally, piston component includes：Cylinder sleeve 9, upper piston 10 and lower piston 14.Wherein, cylinder sleeve 9 is sheathed on exterior central tube
On 11 outer wall.Upper piston 10 is arranged in the cavity between the outer wall of cylinder sleeve 9 and exterior central tube 11, and lower piston 14 is arranged at chamber
In body and stretch out cavity.Upper piston 10 is connected with lower piston 14.One end that lower piston 14 stretches out cavity is contacted with packing element 16.Upper work
Plug 10 can be threadedly coupled with the connected mode of lower piston 14.Upper piston 10 and lower piston 14 can cylinder sleeve 9 with it is outer in
Moved in cavity between the outer wall of heart pipe 11.
Piston component also includes：Lock ring 12.Lock ring 12 is arranged at the exterior central tube 11 between upper piston 10 and lower piston 14
Outer wall on.In the implementation, lower piston 14 be up-narrow and down-wide part, and top apart from exterior central tube 11 have one away from
From, i.e. there is a step on lower piston 14.Lower piston 14 is connected by top with upper piston 10.Upper piston 10 and lower piston 14 it
Between have a space, lock ring 12 is just arranged on the outer wall of exterior central tube 11 of the gap.Lock ring 12 is outer with exterior central tube 11
The first sawtooth is provided with the face of wall contact, the relevant position of the outer wall of exterior central tube 11 is provided with the second sawtooth, the first sawtooth
It is engaged with the second sawtooth, so that lower piston can only be moved downward.
By setting the first sawtooth and the second sawtooth to ensure that the seat for setting state and slips 18 of packing element 16 hangs state
It can not discharge.
Piston component also includes pin 13.Pin 13 is used to connect cylinder sleeve 9 and lower piston 14.
Pin 13 can prevent that the motion of lower piston 14 causes premature setting under abnormal condition, improves the tail tube hanging
The reliability of packer operation.
Optionally, tail tube hanging packer also includes：Hydraulic anchor button component, hydraulic anchor button assembly set is located at interior center
On pipe 3, the lower end of hydraulic anchor button component is connected with the second end of connecting rod 4.
Hydraulic anchor button component includes：Hydraulic anchor button seat 2, button tabletting 7, button 8 and spring 6.Hydraulic anchor button seat 2
It is sheathed on inner central tube 3, is that button 8 provides support and seal-off pressure chamber.Button tabletting 7, button 8 and spring 6 may be contained within
In the cavity of hydraulic anchor button seat 2.Button tabletting 7 is used for the inwall that button 8 is fixed on to hydraulic anchor button seat 2.Spring 6 is used
In the power that resilience is provided for button 8.Button tabletting 7 can be fixed in hydraulic anchor button seat 2 by screw 5.Optionally, spiral shell
Nail 5 can be interior hexagonal flat head screw.
By setting hydraulic anchor button component to prevent from altering on tail tube hanging packer, the reliability of operation is improved.
After hydraulic anchor button component is provided with, pressure in inner central tube 3 is by the through hole of top connection 1, then by water
Pressure transmission hole, the connecting rod 4 of power anchor button seat 2, are eventually transferred to the inside of cylinder sleeve 9, promote upper piston 10 to move down, upper piston 10
Lower piston 14 and lock ring 12 is driven to move down.Lower piston 14 drives packing element 16 to move down and expand and set.Packing element 16 drives
Cone 17 is moved downward.Slips 18 is supported in the presence of the inclined-plane of cone 17, is set in sleeve pipe.
Tail tube hanging packer also includes bushing 15.Bushing 15 is sheathed on the outer wall of exterior central tube 11.Packing element 16 is arranged
In on bushing 15.A part for cone 17 is sheathed on bushing 15.
By setting bushing 15 to reduce packing element 16 and friction of the cone 17 to the outer wall of exterior central tube 11, protection is played outer
The effect of central tube 11, it is cost-effective to improve the service life of exterior central tube 11, and improve operational reliability.
In a kind of possible implementation, tail tube hanging packer includes 3 slips 18.Tail tube hanging packer is also wrapped
Include slips back-up ring 19.Slips back-up ring 19 is arranged between slips 18 and release set 22, for fixing 3 slips 18.Slips 18
Outside is provided with sawtooth, is set when being softened with realizing by sawtooth in sleeve pipe.
Slips back-up ring 19 is set to make 3 slips 18 when being supported, for unified entirety.Certainly, the number of slips 18
Amount can also be not limited thereto for other quantity, the present embodiment.
Below to the present embodiment provide tail tube hanging packer set and deblocking process make a detailed description：
Set process：The tail tube hanging packer for being hung with tail pipe is lowered into the predeterminated position of sleeve pipe by Back-off Pipe String
Place.Afterwards, it can be built the pressure by way of the injection pressure toward in inner central tube 3 in inner central tube 3.Pressure in inner central tube 3
Power is delivered to cylinder sleeve 9 and outer center by the through hole of top connection 1, then by the pressure transmission hole and connecting rod 4 of hydraulic anchor button seat 2
In cavity between the outer wall of pipe 11.The pressure can promote upper piston 10 to move down.Upper piston 10 promotes lock ring 12 with
Piston 14 is moved down.Lower piston 14 promotes and extruded packing element 16 and the cone 17 of the lower end of packing element 16 is moved down.Lower piston 14
When promoting and extruding packing element 16, packing element 16 can be by compression swelling, so as to set in sleeve pipe.Cone 17 when moving down, its
On inclined-plane can extrude slips 18, slips 18 is softened in the presence of the inclined-plane of cone 17 so that, seat hang in sleeve pipe.Lock
The sawtooth that can only unidirectionally move is provided with ring 12, it is ensured that packing element 16 set and slips 18 seat hang state can not release
Put.
Set in tail tube hanging separator under state, it is possible to achieve tail tube hanging, reduce the cost of tail tube hanging operation.
Also, because tail pipe can be with sand control, therefore, the tail tube hanging separator can realize sand control under the state that sets, it is to avoid silt
Into oil pipe, cause oil pipe blocking and damage electric pump, it is ensured that oil reservoir is normally produced.
Deblocking process：Pass through the inner central tube 3 that joint 1 is put on Back-off Pipe String and is connected with top connection 1.Setting state
Under, exterior central tube 11 is integrated with slips 18, now, and inner central tube 3 is moved up, and exterior central tube 11 can not be moved.Therefore,
Upper lifting force now will make to produce relative displacement between inner central tube 3 and exterior central tube 11, so that, will be connecting the two inside and outside
Pipe connections 20 are cut.After inside and outside pipe connections 20 are cut, inner central tube 3 continues to move up.Now, connection exterior central tube 11 is with releasing
Putting the cam bit 21 of set 22 will drop in the groove 24 of the bottom of inner central tube 3, so that exterior central tube 11 is covered into 22 with release
Restriction relation release, release set 22 can now be moved down, thus the slips back-up ring 19 on its top, slips 18, cone 17,
Packing element 16 can be moved down, and realized that deblocking is conciliate and hung.
Solution, which is honored as a queen, can realize mobile tail pipe.
The tail tube hanging packer that the present embodiment is provided, by setting top connection, inner central tube, exterior central tube, connecting rod, work
Plug assembly, packing element, cone, slips, inside and outside pipe connections, cam bit and release set, wherein, exterior central tube coaxial sleeve is in interior
On heart pipe, the lower end of exterior central tube and inner central tube is connected by inside and outside pipe connections, and the upper end of top connection and inner central tube connects
Connect, piston component, packing element, cone, slips and release set are sequentially sleeved on the outer wall of exterior central tube from top to bottom；Cone has one
For the inclined-plane with the cooperation of the top of slips, the top of slips is arranged on the inclined-plane of cone；The bottom of slips is used to connect tail
Pipe；Cam bit is sheathed on the outer wall of exterior central tube, is covered for connecting exterior central tube with release；The first end of connecting rod and piston group
The upper end connection of part, for by the pressure transmission in inner central tube to piston component, piston component to be in the power transmitted by connecting rod
Packing element and cone are extruded afterwards, and slips is hung on internal surface of sleeve pipe for being propped up recoil in the presence of the inclined-plane of cone；Outer center
Distance is provided with the groove for being additionally provided with and matching with the bottom shape of cam bit at the position pre-determined distance of cam bit on pipe, recessed
Groove is used for the accommodating cam bit in deblocking, realizes following technique effect：Firstth, it can be hung by the tail tube hanging packer
Tail pipe, reduces tail tube hanging operating cost；Secondth, after the tail tube hanging separator is set, its tail pipe hung can be prevented
Silt in barefoot interval enters in oil pipe, and then, prevent silt from blocking oil pipe and damage electric pump, improve oil well production efficiency
And reduce production cost；3rd, the tail tube hanging packer realizes deblocking by setting cam bit, solution big envelope and groove, full
Foot deblocking demand.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of tail tube hanging packer, it is characterised in that including：Top connection, inner central tube, exterior central tube, connecting rod, piston group
Part, packing element, cone, slips, inside and outside pipe connections, cam bit and release set；Wherein,
The exterior central tube coaxial sleeve is on the inner central tube, and the lower end of the exterior central tube and the inner central tube passes through
The inside and outside pipe connections connection, the top connection is connected with the upper end of the inner central tube, the piston component, the glue
Cylinder, the cone, the slips and release set are sequentially sleeved on the outer wall of the exterior central tube from top to bottom；The cone
Body has one to be used for the inclined-plane with the top cooperation of the slips, and the top of the slips is arranged on the inclined-plane of the cone；Institute
Stating the bottom of slips is used for union tail；The cam bit is sheathed on the outer wall of the exterior central tube, described outer for connecting
Central tube covers with the release；The first end of the connecting rod is connected with the upper end of the piston component, for by the interior center
Pressure transmission in pipe is to the piston component, and the piston component extrudes the packing element after the power transmitted by the connecting rod
And the cone, the slips is used to be propped up recoil in the presence of the inclined-plane of the cone and be hung on internal surface of sleeve pipe；It is described
Distance is provided with the bottom shape phase being additionally provided with the position pre-determined distance of cam bit with the cam bit on exterior central tube
The groove matched somebody with somebody, the groove is used to house the cam bit in deblocking.
2. tail tube hanging packer according to claim 1, it is characterised in that the piston component includes：Cylinder sleeve, upper work
Plug and lower piston；Wherein,
The cylinder sleeve is sheathed on the outer wall of the exterior central tube, and the upper piston is arranged at the cylinder sleeve and the exterior central tube
Outer wall between cavity in, the lower piston is arranged in the cavity and stretches out the cavity, the upper piston with it is described
Lower piston is connected, and one end that the lower piston stretches out the cavity is contacted with the packing element.
3. tail tube hanging packer according to claim 2, it is characterised in that the piston component also includes：Lock ring, institute
On the outer wall for stating the exterior central tube that lock ring is arranged between the upper piston and the lower piston, the lock ring and the outer center
The first sawtooth is provided with the face of the wall contacts of pipe, the relevant position of the outer wall of the exterior central tube is provided with the second sawtooth,
First sawtooth is engaged with second sawtooth, so that the lower piston can only be moved downward.
4. tail tube hanging packer according to claim 3, it is characterised in that the piston component also includes pin, institute
Stating pin is used to connect the cylinder sleeve and the lower piston.
5. the tail tube hanging packer according to claim any one of 1-4, it is characterised in that the tail tube hanging packer
Also include：Hydraulic anchor button component, the hydraulic anchor button assembly set is on the inner central tube, the hydraulic anchor button group
The lower end of part is connected with the second end of the connecting rod.
6. tail tube hanging packer according to claim 5, it is characterised in that the hydraulic anchor button component includes：Water
Power anchor button seat, button tabletting, button and spring, the hydraulic anchor button cover for seat is on the inner central tube, the button
Tabletting, the button and the spring may be contained within the cavity of the hydraulic anchor button seat, and the button tabletting is used for institute
State button to be fixed on the inwall of the hydraulic anchor button seat, the spring is used for the power for providing resilience for the button.
7. the tail tube hanging packer according to claim any one of 1-4, it is characterised in that the tail tube hanging packer
Also include bushing, the bushing is sheathed on the outer wall of the exterior central tube, and the packing element is sheathed on the bushing, the cone
A part for body is sheathed on the bushing.
8. tail tube hanging packer according to claim 7, it is characterised in that the tail tube hanging packer includes 3
The slips, the tail tube hanging packer also includes：Slips back-up ring, the slips back-up ring is arranged at the slips and released with described
Put between set, for fixing 3 slips.
9. tail tube hanging packer according to claim 1, it is characterised in that the inside and outside pipe connections are pin.
10. tail tube hanging packer according to claim 1, it is characterised in that the material of the packing element is 4 third fluorine rubbers
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395302.4U CN206376815U (en) | 2016-12-19 | 2016-12-19 | Tail tube hanging packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395302.4U CN206376815U (en) | 2016-12-19 | 2016-12-19 | Tail tube hanging packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206376815U true CN206376815U (en) | 2017-08-04 |
Family
ID=59405729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621395302.4U Active CN206376815U (en) | 2016-12-19 | 2016-12-19 | Tail tube hanging packer |
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| Country | Link |
|---|---|
| CN (1) | CN206376815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761561A (en) * | 2019-10-21 | 2021-05-07 | 中国石油化工股份有限公司 | Suspension device for tail pipe |
| CN113530483A (en) * | 2021-07-03 | 2021-10-22 | 任丘市华北石油华坤钻采机械有限公司 | Novel liner hanger |
-
2016
- 2016-12-19 CN CN201621395302.4U patent/CN206376815U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761561A (en) * | 2019-10-21 | 2021-05-07 | 中国石油化工股份有限公司 | Suspension device for tail pipe |
| CN113530483A (en) * | 2021-07-03 | 2021-10-22 | 任丘市华北石油华坤钻采机械有限公司 | Novel liner hanger |
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