CN207905767U - Recyclable tubular packer - Google Patents
Recyclable tubular packer Download PDFInfo
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- CN207905767U CN207905767U CN201820216316.8U CN201820216316U CN207905767U CN 207905767 U CN207905767 U CN 207905767U CN 201820216316 U CN201820216316 U CN 201820216316U CN 207905767 U CN207905767 U CN 207905767U
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Abstract
The utility model is related to packer device technical field, specially a kind of Recyclable tubular packer, including top connection, upper fluid cylinder and sliding sleeve；The lower inside of top connection is fixedly connected with central tube, upper fluid cylinder is the up big and down small tubular of internal diameter, the upper inner of upper fluid cylinder is sleeved on the lower outside of top connection, the lower inside of upper fluid cylinder is sleeved on the upper outside of central tube, admission chamber is formd between top connection, upper fluid cylinder and central tube, at least two inlet opening is laid on the central tube on admission chamber top, the lower end outside of upper fluid cylinder is installed with pressure ring.The utility model reasonable and compact in structure, it is easy to use, by the way that liquid outlet channel, sliding sleeve and relief hole are arranged in the utility model, the utility model can be made to restore to the original state during deblocking, to ensure that the size of latus rectum in well, the hidden danger for eliminating later stage underground work reduces the cost of wellbore construction operation.
Description
Technical field
The utility model is related to packer device technical fields, are a kind of Recyclable tubular packers.
Background technology
In oil well production process, manages interior packer and be widely used in formation testing by layer, oil production by layer, Ka Shui, sand control, layering
In the underground work such as water filling, casing repairing.Existing frequently-used packer is mostly disposable packer, is formed with the borehole wall after filling
Packer in pipe can not be proposed from well after wellbore construction, cause latus rectum in well to become smaller, to rear by sealed-for-life
Phase underground work causes big inconvenience, while increasing the cost of wellbore construction operation.
Invention content
The utility model provides a kind of Recyclable tubular packer, overcomes the deficiency of the above-mentioned prior art, can have
Effect solves after wellbore construction, packer in pipe can not be proposed from well, cause latus rectum in well to become smaller, under late well
Operation causes big inconvenience, while the problem of increase the cost of wellbore construction operation.
The technical solution of the utility model is realized by following measures：A kind of Recyclable tubular packer, including
Top connection and packing element assembly；The lower inside of top connection is installed with central tube, and the lower outside of top connection is set with upper liquid
The lower inside of cylinder, upper fluid cylinder is sleeved on the upper outside of central tube, and admission chamber, admission chamber are formed between upper fluid cylinder and central tube
Be laid on the central tube on top at least two into fluid through-hole, the lower outside of upper fluid cylinder is installed with pressure ring, packing element
Assembly is sleeved on the outside of the middle part of central tube, and the upper end of the inside middle portion and packing element assembly of pressure ring is fixedly installed togather, upper liquid
There is gap between the lower end of cylinder and the inside middle portion of pressure ring and the upper end of packing element assembly and forms circumferential groove, the lower part of upper fluid cylinder
At least two vertically-mounted holes being connected with admission chamber are laid with, vertically-mounted hole is connected with circumferential groove, is pacifying vertically
It is installed with ball-and-seat in dress hole and circumferential groove, the lower outside of packing element assembly is installed with lower fluid cylinder, under lower fluid cylinder
End inside and the lower outside of central tube are fixedly installed togather, lower that sap cavity is formed out between fluid cylinder and central tube, go out sap cavity
Top is installed with sliding sleeve by pin hole and shear pin, goes out on the central tube in the middle part of sap cavity and is laid at least two
The relief hole being connected with center tube cavity, go out on the central tube of sap cavity lower part be laid at least two in central tube
The fluid hole that chamber is connected forms the feed liquor being connected with circumferential groove bottom end between the upper inner and central tube of packing element assembly
Channel is formed and the liquid outlet channel that goes out sap cavity and be connected, the bottom of central tube between the lower inside and central tube of packing element assembly
Outside is installed with lower contact, and the height of sliding sleeve is less than relief hole and goes out at a distance from sap cavity bottom.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
Above-mentioned packing element assembly includes packing element and rubber tube seat, and the top outer diameter of packing element and the lower outer diameter of packing element are respectively less than packing element
Middle part outer diameter, packing element is sleeved on the outside of rubber tube seat, and the upper end of packing element and the top of rubber tube seat are fixed together, packing element
Lower end and the lower part of rubber tube seat be fixed together, the upper inner and lower inside of rubber tube seat are respectively equipped with annular groove,
The lower part of rubber tube seat top annular groove is laid at least two ostium being connected with packing element inside, in rubber tube seat lower loop
The top of slot is laid at least two tap hole being connected with packing element inside, and central tube is sleeved in the middle part of rubber tube seat
On the outside of middle part, central tube, the annular groove on rubber tube seat top and ostium form feed pathway, the top of feed pathway and circumferential groove
Bottom end be connected, central tube, the annular groove of rubber tube seat lower part and tap hole form liquid outlet channel, the bottom end of liquid outlet channel with go out
The top of sap cavity is connected.
The lower outside of above-mentioned upper fluid cylinder is equipped with mounting groove, and the inside middle portion of pressure ring is integrally fixed with boss, pressure ring it is upper
Portion is fixedly mounted in the mounting groove of fluid cylinder, is fixedly installed togather on the outside of the upper end of rubber tube seat on the inside of the boss of pressure ring,
There is gap between the boss upper end of pressure ring and the upper end of rubber tube seat and the bottom end of upper fluid cylinder and forms circumferential groove, upper fluid cylinder lower part
The bottom in vertically-mounted hole be connected with circumferential groove, the top of packing element is located at the lower inside and rubber tube seat upper outside of pressure ring
Between；Or/and ball-and-seat includes valve rod, spool and spring, the upper inner diameter in vertically-mounted hole is less than the lower part in vertically-mounted hole
Internal diameter, valve rod are located at the top in vertically-mounted hole and have gap between the upper inside wall in vertically-mounted hole, and spool is located at vertical
Simultaneously there is gap in the lower part of mounting hole between the inner wall of vertically-mounted hole lower part, the lower end of valve rod and the upper center one of spool
Fixed, spool is rondelle, and the diameter of spool is more than the internal diameter on vertically-mounted hole top, and the lower end of spool is installed with bullet
Spring, the lower end of spring and the bottom end of circumferential groove are fixed together.
Above-mentioned upper fluid cylinder is the up big and down small tubular of internal diameter, and the upper inner of upper fluid cylinder is sleeved on outside the lower part of top connection
The lower inside of side, upper fluid cylinder is sleeved on the upper outside of central tube, and feed liquor is formd between top connection, upper fluid cylinder and central tube
Chamber；Or/and the inner cavity of lower fluid cylinder is stepped through-hole, the internal diameter on lower fluid cylinder top is more than the internal diameter in the middle part of lower fluid cylinder, lower liquid
Internal diameter in the middle part of cylinder is more than the internal diameter of lower fluid cylinder lower part, and the lower end outside of rubber tube seat and the inside middle portion of lower fluid cylinder inner cavity fix company
It is connected together, the lower inside of lower fluid cylinder and the lower outside of central tube are fixed together, and the lower part of packing element is located at lower liquid
Between the inner cavity top of cylinder and rubber tube seat, the inner cavity lower part of central tube, the lower end of rubber tube seat and lower fluid cylinder forms out sap cavity,
Go out on the lower fluid cylinder on sap cavity top and be laid at least two pin hole, sliding sleeve is sleeved on out the top of sap cavity and by cutting
It cuts pin and pin hole and lower fluid cylinder is fixedly installed togather, go out the relief hole of sap cavity on the central tube below sliding sleeve, go out
The fluid hole of sap cavity is on the central tube of the lower section of relief hole.
At least one sealing ring, upper liquid are installed between the lower outside of above-mentioned top connection and the upper inner of upper fluid cylinder
At least one sealing ring, the upper inner and upper liquid of pressure ring are installed between the lower inside of cylinder and the upper outside of central tube
At least one sealing ring is installed between the lower outside of cylinder, is equipped on the inside of the upper outside of sliding sleeve and lower fluid cylinder
At least one sealing ring is equipped at least one sealing between the lower inside of sliding sleeve and the lower outside of central tube
Circle, sealing ring is equipped between spool and the top in vertically-mounted hole；Or/and top connection lower inside and central tube it is upper
End outside, which is threadably secured, to be installed together, and the lower outside of upper fluid cylinder and the upper inner of pressure ring are threadably secured installation
Together, it is threadably secured and is installed together on the outside of the upper end of the inside middle portion of pressure ring and rubber tube seat, outside the lower end of rubber tube seat
The inside middle portion of side and lower fluid cylinder, which is threadably secured, to be installed together, the lower outside of the lower inside and central tube of lower fluid cylinder
It is threadably secured and is installed together, the lower end outside of central tube and the upper inner of lower contact are threadably secured mounted on one
It rises.
The upper outside of above-mentioned top connection is equipped with screw thread, and the lower inside of lower contact is equipped with screw thread；Or/and upper fluid cylinder, pressure
Ring, packing element, lower fluid cylinder are consistent with the outer diameter of lower contact.
The utility model reasonable and compact in structure, it is easy to use, by the way that liquid outlet channel, sliding are arranged in the utility model
Sleeve and relief hole can make the utility model restore to the original state during deblocking, to ensure that the size of latus rectum in well, disappear
In addition to the hidden danger of later stage underground work, the cost of wellbore construction operation is reduced.
Description of the drawings
Attached drawing 1 is the top main view schematic cross-sectional view of the best embodiment of the utility model.
Attached drawing 2 is the lower part main view schematic cross-sectional view of the best embodiment of the utility model.
Attached drawing 3 is the main view section view enlarged structure schematic diagram of region A in attached drawing 1.
Coding in attached drawing is respectively：1 is top connection, is managed centered on 2, and 3 be upper fluid cylinder, and 4 be admission chamber, and 5 is logical for feed liquor
Hole, 6 be pressure ring, and 7 be lower fluid cylinder, and 8 be sap cavity, and 9 be shear pin, and 10 be sliding sleeve, and 11 be relief hole, and 12 be liquid
Hole, 13 be lower contact, and 14 be circumferential groove, and 15 be vertically-mounted hole, and 16 be feed pathway, and 17 be liquid outlet channel, and 18 be packing element, 19
It is ostium for rubber tube seat, 20,21 be tap hole, and 22 be valve rod, and 23 be spool, and 24 be spring.
Specific implementation mode
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to specification
The Butut mode of attached drawing 1 is described, such as：The position relationship of front, rear, top, and bottom, left and right etc. is according to Figure of description 1
Butut direction determine.
The utility model is further described with reference to embodiment and attached drawing：
As shown in attached drawing 1,2,3, the Recyclable tubular packer, including top connection 1 and packing element assembly；Under top connection 1
Central tube 2 is installed on the inside of portion, the lower outside of top connection 1 is set with fluid cylinder 3, the lower inside suit of upper fluid cylinder 3
Admission chamber 4 is formed between the upper outside of central tube 2, upper fluid cylinder 3 and central tube 2, on the central tube 2 on 4 top of admission chamber
Be laid at least two into fluid through-hole 5, the lower outside of upper fluid cylinder 3 is installed with pressure ring 6, and packing element assembly is sleeved on center
On the outside of the middle part of pipe 2, the upper end of the inside middle portion and packing element assembly of pressure ring 6 is fixedly installed togather, the lower end of upper fluid cylinder 3 and pressure
There is gap between the inside middle portion and the upper end of packing element assembly of ring 6 and form circumferential groove 14, the lower part of upper fluid cylinder 3 is laid with
At least two vertically-mounted holes 15 being connected with admission chamber 4, vertically-mounted hole 15 is connected with circumferential groove 14, vertically-mounted
Ball-and-seat is installed in hole 15 and circumferential groove 14, the lower outside of packing element assembly is installed with lower fluid cylinder 7, lower fluid cylinder 7
The lower outside of lower end inside and central tube 2 be fixedly installed togather, form out sap cavity 8 between lower fluid cylinder 7 and central tube 2,
The top for going out sap cavity 8 is installed with sliding sleeve 10 by pin hole and shear pin 9, goes out on the central tube 2 at 8 middle part of sap cavity
It is laid at least two relief hole 11 being connected with 2 inner cavity of central tube, goes out on the central tube 2 of 8 lower part of sap cavity and is laid with
At least two fluid hole 12 being connected with 2 inner cavity of central tube forms between the upper inner and central tube 2 of packing element assembly
The feed pathway 16 being connected with 14 bottom end of circumferential groove forms and goes out sap cavity 8 between the lower inside and central tube 2 of packing element assembly
The bottom outside of the liquid outlet channel 17 being connected, central tube 2 is installed with lower contact 13, and the height of sliding sleeve 10, which is less than, lets out
It presses hole 11 and goes out at a distance from 8 bottom of sap cavity.In this way, at work, the utility model enters with casing in well, it is suitable when reaching
When position, hydraulic fluid from the inside of top connection 1 and central tube 2 by into fluid through-hole 5 enter admission chamber 4 in, with flow of pressurized
The pressure rise of body, the open-top ball-and-seat of hydraulic fluid enter in feed pathway 16, under the effect of the pressure, make in packing element assembly
Portion expands outward, is finally close together with the inner wall of casing, and that realizes the utility model sets process, when needing deblocking,
The pressure for continuing increase hydraulic fluid makes the hydraulic fluid in liquid outlet channel 17 generate downward effect to sliding sleeve 10
Power makes sliding sleeve 10 cut shear pin 9 and moves down, is finally displaced into out the bottom of sap cavity 8 and concedes relief hole 11, with
The pressure of hydraulic fluid is reduced afterwards, and ball-and-seat returns the setting contact closed between admission chamber 4 and feed pathway 16, between packing element assembly
Hydraulic fluid by liquid outlet channel 17, go out sap cavity 8 and relief hole 20 and be discharged, so that packing element assembly is restored to the original state, packing element assembly with
Internal surface of sleeve pipe is separated, and so that the utility model is integrally proposed in well, to ensure that latus rectum in well, eliminates late well
The hidden danger of lower operation, the utility model can be continuing with after taking-up, reduce the cost of wellbore construction operation.
Above-mentioned Recyclable tubular packer can be made further optimization and/or improvements according to actual needs：
As shown in attached drawing 1,2, packing element assembly includes packing element 18 and rubber tube seat 19, the top outer diameter of packing element 18 and packing element 18
Lower outer diameter is respectively less than the middle part outer diameter of packing element 18, and packing element 18 is sleeved on the outside of rubber tube seat 19, the upper end of packing element 18 and packing element
The top of seat 19 is fixed together, and the lower end and the lower part of rubber tube seat 19 of packing element 18 are fixed together, rubber tube seat 19
Upper inner and lower inside be respectively equipped with annular groove, the lower part of 19 top annular groove of rubber tube seat be laid at least two with
The ostium 20 that the inside of packing element 18 is connected, the top of 19 lower part annular groove of rubber tube seat be laid at least two with packing element 18
The middle part of the tap hole 21 that inside is connected, rubber tube seat 19 is sleeved on the outside of the middle part of central tube 2, on central tube 2, rubber tube seat 19
The annular groove and ostium 20 in portion form feed pathway 16, and the top of feed pathway 16 is connected with the bottom end of circumferential groove 14, in
Heart pipe 2, the annular groove of 19 lower part of rubber tube seat and tap hole 21 form liquid outlet channel 17, the bottom end of liquid outlet channel 17 and go out sap cavity 8
Top be connected.In this way, in this way, packing element 18 upper end on the inside of and lower end inside respectively with the upper outside of rubber tube seat 19 and under
Vulcanization is fixed together on the outside of portion, and feed pathway 16 and liquid outlet channel 17, hydraulic fluid are formed between rubber tube seat 19 and central tube 2
It can be entered between packing element 18 and rubber tube seat 19 by feed pathway 16 and ostium 20, make middle part and the rubber tube seat 19 of packing element 18
Separation, the middle part of packing element 18 expand, are finally close together with the inner wall of casing outward, realize setting for the utility model,
When deblocking, the hydraulic fluid between packing element 18 and rubber tube seat 19 can be flowed out by tap hole 21 and liquid outlet channel 17, make packing element
18 restore to the original state, and the outer wall of packing element 18 and the inner wall of casing are separated, the final deblocking for realizing the utility model.
As shown in attached drawing 1,3, the lower outside of upper fluid cylinder 3 is equipped with mounting groove, and the inside middle portion of pressure ring 6 is integrally fixed with convex
The top of platform, pressure ring 6 is fixedly mounted in the mounting groove of fluid cylinder 3, on the inside of the boss of pressure ring 6 and on the outside of the upper end of rubber tube seat 19
It is fixedly installed togather, has gap between the boss upper end of pressure ring 6 and the upper end of rubber tube seat 19 and the bottom end of upper fluid cylinder 3 and is formed
Circumferential groove 14, the bottom in the vertically-mounted hole 15 of 3 lower part of upper fluid cylinder are connected with circumferential groove 14, and the top of packing element 18 is located at pressure
Between 19 upper outside of lower inside and rubber tube seat of ring 6；Or/and ball-and-seat includes valve rod 22, spool 23 and spring 24, is erected
The upper inner diameter of straight mounting hole 15 is less than the lower inner diameter in vertically-mounted hole 15, and valve rod 22 is located at the top in vertically-mounted hole 15 simultaneously
Have gap between the upper inside wall in vertically-mounted hole 15, spool 23 be located at the lower part in vertically-mounted hole 15 and with vertically-mounted hole
There is gap between the inner wall of 15 lower parts, the lower end of valve rod 22 is integrally fixed with the upper center of spool 23, and spool 23 is rondelle,
The diameter of spool 23 is more than the internal diameter on 15 top of vertically-mounted hole, and the lower end of spool 23 is installed with spring 24, spring 24
Lower end and the bottom end of circumferential groove 14 are fixed together.In this way, the top of packing element 18 is between pressure ring 6 and rubber tube seat 19,
The connection relation that can reinforce packing element 18 and rubber tube seat 19 plays a certain protective role packing element assembly；The valve rod of ball-and-seat
22 and spool 23 be mounted in vertically-mounted hole 15, closing admission chamber 4 and feed pathway can be played under the action of spring 24
Contact between 16, when the pressure of hydraulic fluid is more than the deformation elastic force of spring 24, valve rod 22, spool 23 and spring 24 are downward
Mobile, conceding channel allows hydraulic fluid to flow into feed pathway 16, when the pressure of hydraulic fluid is less than the deformation of spring 24
When elastic force, spring 24 returns seat with ovable valve stem 22 and spool 23, and spool 23 closes the connection between admission chamber 4 and feed pathway 16 again
System.
As shown in attached drawing 1,2, upper fluid cylinder 3 is the up big and down small tubular of internal diameter, and the upper inner of upper fluid cylinder 3, which is sleeved on, to be connect
First 1 lower outside, the lower inside of upper fluid cylinder 3 are sleeved on the upper outside of central tube 2, top connection 1, upper fluid cylinder 3 and center
Admission chamber 4 is formd between pipe 2；Or/and the inner cavity of lower fluid cylinder 7 is stepped through-hole, the internal diameter on lower 7 top of fluid cylinder is more than
The internal diameter at the middle part of lower fluid cylinder 7, the internal diameter at 7 middle part of lower fluid cylinder are more than the internal diameter of 7 lower part of lower fluid cylinder, the lower end outside of rubber tube seat 19 with
The inside middle portion of lower 7 inner cavity of fluid cylinder is fixed together, and the lower inside and the lower outside of central tube 2 of lower fluid cylinder 7 are fixed
It links together, the lower part of packing element 18 is located between the inner cavity top and rubber tube seat 19 of lower fluid cylinder 7, central tube 2, rubber tube seat 19
Lower end and the inner cavity lower part of lower fluid cylinder 7 form out sap cavity 8, and at least two are laid on the lower fluid cylinder 7 for going out 8 top of sap cavity
Pin hole, sliding sleeve 10 is sleeved on out the top of sap cavity 8 and is fixedly mounted on by shear pin 9 and pin hole and lower fluid cylinder 7
Together, go out the relief hole 11 of sap cavity 8 on the central tube 2 below sliding sleeve 10, go out the fluid hole 12 of sap cavity 8 in relief hole 11
Lower section central tube 2 on.In this way, the lower part of packing element 18 can be made to be between lower fluid cylinder 7 and rubber tube seat 19, glue can be reinforced
The connection relation of cylinder 18 and rubber tube seat 19, plays a certain protective role packing element assembly.
As shown in attached drawing 1,2, it is equipped between the lower outside of top connection 1 and the upper inner of upper fluid cylinder 3 at least one
Sealing ring, at least one sealing ring, pressure ring 6 are installed between the lower inside and the upper outside of central tube 2 of upper fluid cylinder 3
Upper inner and the lower outside of upper fluid cylinder 3 between at least one sealing ring, the upper outside of sliding sleeve 10 are installed
At least one sealing ring, the lower outside of the lower inside and central tube 2 of sliding sleeve 10 are installed with the inside of lower fluid cylinder 7
Between at least one sealing ring is installed, sealing ring is installed between spool 23 and the top in vertically-mounted hole 15；Or/and
It is threadably secured and is installed together on the outside of the lower inside of top connection 1 and the upper end of central tube 2, the lower outside of upper fluid cylinder 3
It is threadably secured and is installed together with the upper inner of pressure ring 6, it is logical on the outside of the inside middle portion of pressure ring 6 and the upper end of rubber tube seat 19
It crosses to be screwed and be installed together, the inside middle portion of the lower end outside of rubber tube seat 19 and lower fluid cylinder 7, which is threadably secured, to be mounted on
Together, the lower inside of lower fluid cylinder 7 and the lower outside of central tube 2 are threadably secured and are installed together, the lower end of central tube 2
The upper inner of outside and lower contact 13, which is threadably secured, to be installed together.In this way, sealing ring can enhance the utility model
Leakproofness, improve the working effect of the utility model.
As shown in attached drawing 1,2, the upper outside of top connection 1 is equipped with screw thread, and the lower inside of lower contact 13 is equipped with screw thread；
Or/and upper fluid cylinder 3, pressure ring 6, packing element 18, lower fluid cylinder 7 are consistent with the outer diameter of lower contact 13.In this way, top connection 1 connects under
First 13 are respectively equipped with screw thread, can be in order to the connection of the utility model and other parts；Upper fluid cylinder 3, pressure ring 6, packing element 18, lower liquid
Cylinder 7 is consistent with the outer diameter of lower contact 13 can be in order to taking-up of the utility model out of well.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
The use process of the best embodiment of the utility model：At work, the utility model enters in well with casing, when
When reaching suitable position, hydraulic fluid from the inside of top connection 1 and central tube 2 by into fluid through-hole 5 enter admission chamber 4 in, with
The pressure rise of hydraulic fluid, the pressure of hydraulic fluid can be more than the elastic force of 24 deformation of spring, keep hydraulic fluid open-top
Then the spool 23 of ball-and-seat enters from ostium 2 in feed pathway 16, under the effect of the pressure, keep the middle part of packing element 18 outside
Expansion, is finally close together with the inner wall of casing, and that realizes the utility model sets process, when needing deblocking, continues to increase
The pressure of big hydraulic fluid, makes the hydraulic fluid in liquid outlet channel 17 generate downward active force to sliding sleeve 10, makes cunning
Moving sleeve 10 is cut shear pin 9 and is moved down, and is finally displaced into out the bottom of sap cavity 8 and concedes relief hole 11, then reduces
The spring 24 of the pressure of hydraulic fluid, ball-and-seat restores to the original state and spool 23 is made to close between admission chamber 4 and feed pathway 16
Contact, hydraulic fluid between packing element 18 and rubber tube seat 19 by liquid outlet channel 17, go out sap cavity 8 and relief hole 20 is discharged, make
Packing element 18 restores to the original state, and packing element 18 is separated with internal surface of sleeve pipe, makes the utility model can be integrally to be proposed in well, to ensure that
Latus rectum in well eliminates the hidden danger of later stage underground work, and the utility model can be continuing with after taking-up, reduced drilling well and applied
The cost for the industry that works.
Claims (10)
1. a kind of Recyclable tubular packer, it is characterised in that including top connection and packing element assembly；The lower inside of top connection is solid
Dingan County is equipped with central tube, and the lower outside of top connection is set with fluid cylinder, and the lower inside of upper fluid cylinder is sleeved on the upper of central tube
On the outside of portion, admission chamber is formed between upper fluid cylinder and central tube, be laid on the central tube on admission chamber top at least two into
The lower outside of fluid through-hole, upper fluid cylinder is installed with pressure ring, and packing element assembly is sleeved on the outside of the middle part of central tube, in pressure ring
On the inside of the portion and upper end of packing element assembly is fixedly installed togather, the lower end of upper fluid cylinder and the inside middle portion of pressure ring and packing element assembly
Have gap between upper end and form circumferential groove, the lower part of upper fluid cylinder be laid at least two be connected with admission chamber it is vertical
Mounting hole, vertically-mounted hole are connected with circumferential groove, and ball-and-seat is installed in vertically-mounted hole and circumferential groove, and packing element is total
At lower outside be installed with lower fluid cylinder, the lower end inside of lower fluid cylinder and the lower outside of central tube are fixedly mounted on one
It rises, lower that sap cavity is formed out between fluid cylinder and central tube, the top for going out sap cavity is installed with sliding by pin hole and shear pin
Sleeve goes out on the central tube in the middle part of sap cavity and is laid at least two relief hole being connected with center tube cavity, goes out sap cavity
At least two fluid hole being connected with center tube cavity, the upper inner of packing element assembly are laid on the central tube of lower part
The feed pathway being connected with circumferential groove bottom end is formd between central tube, between the lower inside and central tube of packing element assembly
The liquid outlet channel for being formed and going out sap cavity and being connected, the bottom outside of central tube are installed with lower contact, the height of sliding sleeve
Less than relief hole with go out at a distance from sap cavity bottom.
2. Recyclable tubular packer according to claim 1, it is characterised in that packing element assembly includes packing element and rubber tube seat,
The top outer diameter of packing element and the lower outer diameter of packing element are respectively less than the middle part outer diameter of packing element, and packing element is sleeved on the outside of rubber tube seat, glue
The upper end of cylinder and the top of rubber tube seat are fixed together, and the lower end of packing element and the lower part of rubber tube seat are fixed together,
The upper inner and lower inside of rubber tube seat are respectively equipped with annular groove, and on rubber tube seat top, the lower part of annular groove is laid at least two
With the ostium that is connected on the inside of packing element, the top of rubber tube seat lower part annular groove be laid at least two with packing element on the inside of
The tap hole being connected is sleeved in the middle part of rubber tube seat on the outside of the middle part of central tube, central tube, rubber tube seat top annular groove and stream
Enter hole and form feed pathway, the top of feed pathway is connected with the bottom end of circumferential groove, central tube, rubber tube seat lower part annular groove
Liquid outlet channel is formd with tap hole, the bottom end of liquid outlet channel is connected with the top for going out sap cavity.
3. Recyclable tubular packer according to claim 2, it is characterised in that the lower outside of upper fluid cylinder is equipped with installation
The inside middle portion of slot, pressure ring is integrally fixed with boss, and the top of pressure ring is fixedly mounted in the mounting groove of fluid cylinder, pressure ring it is convex
It is fixedly installed togather on the outside of the upper end of rubber tube seat on the inside of platform, the boss upper end of pressure ring and the upper end of rubber tube seat and upper fluid cylinder
There is gap between bottom end and form circumferential groove, the bottom in the vertically-mounted hole of upper fluid cylinder lower part is connected with circumferential groove, packing element
Top be located between the lower inside and rubber tube seat upper outside of pressure ring；Or/and ball-and-seat includes valve rod, spool and spring,
The upper inner diameter in vertically-mounted hole be less than vertically-mounted hole lower inner diameter, valve rod be located at the top in vertically-mounted hole and with it is vertical
Have gap between the upper inside wall of mounting hole, spool be located at the lower part in vertically-mounted hole and with the inner wall of vertically-mounted hole lower part it
Between have a gap, the lower end of valve rod and the upper center of spool are integrally fixed, and spool is rondelle, and the diameter of spool is more than vertical peace
The internal diameter on hole top is filled, the lower end of spool is installed with spring, and the lower end of spring and the bottom end of circumferential groove are fixedly connected on one
It rises.
4. Recyclable tubular packer according to claim 2 or 3, it is characterised in that upper fluid cylinder is that internal diameter is up big and down small
The upper inner of tubular, upper fluid cylinder is sleeved on the lower outside of top connection, and the lower inside of upper fluid cylinder is sleeved on the upper of central tube
On the outside of portion, admission chamber is formd between top connection, upper fluid cylinder and central tube；Or/and the inner cavity of lower fluid cylinder is stepped leads to
Hole, the internal diameter on lower fluid cylinder top are more than the internal diameter in the middle part of lower fluid cylinder, and the internal diameter in the middle part of lower fluid cylinder is more than the internal diameter of lower fluid cylinder lower part,
The lower end outside of rubber tube seat and the inside middle portion of lower fluid cylinder inner cavity are fixed together, the lower inside and central tube of lower fluid cylinder
Lower outside be fixed together, the lower part of packing element is located between the inner cavity top and rubber tube seat of lower fluid cylinder, central tube, glue
The lower end of cylinder base and the inner cavity lower part of lower fluid cylinder form out sap cavity, and at least two are laid on the lower fluid cylinder for going out sap cavity top
A pin hole, sliding sleeve are sleeved on out the top of sap cavity and are fixedly mounted on one by shear pin and pin hole and lower fluid cylinder
It rises, goes out the relief hole of sap cavity on the central tube below sliding sleeve, go out center of the fluid hole in the lower section of relief hole of sap cavity
Guan Shang.
5. Recyclable tubular packer according to claim 2 or 3, it is characterised in that the lower outside and upper liquid of top connection
At least one sealing ring is installed, between the lower inside of upper fluid cylinder and the upper outside of central tube between the upper inner of cylinder
At least one sealing ring is installed, is equipped between the upper inner of pressure ring and the lower outside of upper fluid cylinder at least one close
Seal, is equipped at least one sealing ring on the inside of the upper outside of sliding sleeve and lower fluid cylinder, in the lower part of sliding sleeve
At least one sealing ring is installed between side and the lower outside of central tube, is installed between spool and the top in vertically-mounted hole
There is sealing ring；Or/and the lower inside of top connection and the upper end outside of central tube are threadably secured and are installed together, upper liquid
The lower outside of cylinder and the upper inner of pressure ring are threadably secured and are installed together, the inside middle portion of pressure ring and rubber tube seat it is upper
End outside, which is threadably secured, to be installed together, and the inside middle portion of the lower end outside of rubber tube seat and lower fluid cylinder is threadably secured peace
It is fitted together, the lower inside of lower fluid cylinder and the lower outside of central tube are threadably secured and are installed together, under central tube
The upper inner of end outside and lower contact, which is threadably secured, to be installed together.
6. Recyclable tubular packer according to claim 4, it is characterised in that the lower outside of top connection and upper fluid cylinder
Upper inner between at least one sealing ring is installed, pacify between the lower inside of upper fluid cylinder and the upper outside of central tube
Equipped at least one sealing ring, at least one sealing is installed between the upper inner of pressure ring and the lower outside of upper fluid cylinder
At least one sealing ring, the lower inside of sliding sleeve are installed on the inside of circle, the upper outside of sliding sleeve and lower fluid cylinder
At least one sealing ring is installed between the lower outside of central tube, is equipped between spool and the top in vertically-mounted hole
Sealing ring；Or/and the lower inside of top connection and the upper end outside of central tube are threadably secured and are installed together, upper fluid cylinder
Lower outside and the upper inner of pressure ring be threadably secured and be installed together, the inside middle portion of pressure ring and the upper end of rubber tube seat
Outside, which is threadably secured, to be installed together, and the inside middle portion of the lower end outside of rubber tube seat and lower fluid cylinder is threadably secured installation
Together, the lower inside of lower fluid cylinder and the lower outside of central tube are threadably secured and are installed together, the lower end of central tube
The upper inner of outside and lower contact, which is threadably secured, to be installed together.
7. Recyclable tubular packer according to claim 1 or 2 or 3, it is characterised in that the upper outside of top connection is set
There are screw thread, the lower inside of lower contact to be equipped with screw thread；Or/and the outer diameter ruler of upper fluid cylinder, pressure ring, packing element, lower fluid cylinder and lower contact
It is very little consistent.
8. Recyclable tubular packer according to claim 4, it is characterised in that the upper outside of top connection is equipped with screw thread,
The lower inside of lower contact is equipped with screw thread；Or/and upper fluid cylinder, pressure ring, packing element, lower fluid cylinder are consistent with the outer diameter of lower contact.
9. Recyclable tubular packer according to claim 5, it is characterised in that the upper outside of top connection is equipped with screw thread,
The lower inside of lower contact is equipped with screw thread；Or/and upper fluid cylinder, pressure ring, packing element, lower fluid cylinder are consistent with the outer diameter of lower contact.
10. Recyclable tubular packer according to claim 6, it is characterised in that the upper outside of top connection is equipped with spiral shell
The lower inside of line, lower contact is equipped with screw thread；Or/and upper fluid cylinder, pressure ring, packing element, lower fluid cylinder and the outer diameter one of lower contact
It causes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216316.8U CN207905767U (en) | 2018-02-07 | 2018-02-07 | Recyclable tubular packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216316.8U CN207905767U (en) | 2018-02-07 | 2018-02-07 | Recyclable tubular packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905767U true CN207905767U (en) | 2018-09-25 |
Family
ID=63563518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820216316.8U Active CN207905767U (en) | 2018-02-07 | 2018-02-07 | Recyclable tubular packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457613A (en) * | 2018-02-07 | 2018-08-28 | 中国石油集团西部钻探工程有限公司 | Recyclable tubular packer |
| CN117483288A (en) * | 2023-12-29 | 2024-02-02 | 宝鸡天联汇通复合材料有限公司 | Anti-leakage joint cleaning equipment for hydrogen transmission pipeline |
-
2018
- 2018-02-07 CN CN201820216316.8U patent/CN207905767U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457613A (en) * | 2018-02-07 | 2018-08-28 | 中国石油集团西部钻探工程有限公司 | Recyclable tubular packer |
| CN117483288A (en) * | 2023-12-29 | 2024-02-02 | 宝鸡天联汇通复合材料有限公司 | Anti-leakage joint cleaning equipment for hydrogen transmission pipeline |
| CN117483288B (en) * | 2023-12-29 | 2024-04-16 | 宝鸡天联汇通复合材料有限公司 | Leak-proof joint for hydrogen-conveying pipeline |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201105 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |