CN108843268A - Replaceable polished rod packing kit for thermal recovery - Google Patents
Replaceable polished rod packing kit for thermal recovery Download PDFInfo
- Publication number
- CN108843268A CN108843268A CN201811082897.1A CN201811082897A CN108843268A CN 108843268 A CN108843268 A CN 108843268A CN 201811082897 A CN201811082897 A CN 201811082897A CN 108843268 A CN108843268 A CN 108843268A
- Authority
- CN
- China
- Prior art keywords
- injecting glue
- seal
- packing
- tightly
- polished rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012856 packing Methods 0.000 title claims abstract description 108
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 207
- 210000004907 gland Anatomy 0.000 claims description 34
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 241001633942 Dais Species 0.000 claims description 19
- 239000004484 Briquette Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010793 Steam injection (oil industry) Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 14
- 239000000565 sealant Substances 0.000 description 12
- 239000003921 oil Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Abstract
The present invention relates to technical field of oil field equipment, it is a kind of replaceable polished rod packing kit for thermal recovery, seal is held tightly including polished rod, it includes holding seal casinghousing, seal assembly and holding component tightly that polished rod, which holds seal tightly, holding tightly on seal casinghousing circumferentially has at least two groups seal assembly, the seal assembly can be to inside and outside movement, and all seal assemblies can be sealed with being formed on the outside of polished rod when being moved to inner end, holding tightly on seal casinghousing circumferentially has at least two groups to hold component tightly, and the holding component can be to inside and outside movement.The present invention can be clamped at the outer groove of polished rod by holding the setting of component tightly, the outer groove upper surface of polished rod, which can clamp polished rod, simultaneously plays the role of insurance, it can be to playing sealing function on the outside of polished rod by the setting of seal assembly, it can effectively prevent the generation of gas blowout accident, without pouring into well killing fluid and again steam injection, it is able to maintain wellhead temperature, shortens kill-job duty cycle, cost is reduced, productivity is improved.
Description
Technical field
The present invention relates to technical field of oil field equipment, are a kind of replaceable polished rod packing kit for thermal recovery.
Background technique
Heavy oil wells are handled up exploitation using steam injection, and packing kit for thermal recovery is indispensable device in thickened oil recovery, are acted on
First is that sealing polished rod.Since the working environment of packing kit for thermal recovery is high pressure and high temperature（Temperature is in 300 degrees centigrades）Heat
In steam ambient, so that polished rod is easy to wear in oil pumping process, the packing kit for thermal recovery sealing easy premature failure of original part is caused to make original
Oily pollution well head, and polished rod has de- risk of breaking to lead to gas blowout accident, needs workover treatment, replaces polished rod and packing kit for thermal recovery is close
Seal original part.
The measure of Operating Pressure replacement polished rod is to be filled out of oil pipe by kill-job operation using well killing fluid in the prior art
Enter, balances borehole pressure, wellhead temperature can be reduced in this way, so that the kill-job technical operation period is long, it is at high cost, simultaneously because shaft bottom
Temperature reduces, and resumes production and needs steam injection again, this can extend downtime, reduces productivity.
Summary of the invention
The present invention provides a kind of replaceable polished rod packing kit for thermal recovery, overcome the defects of the prior art, can have
The duty cycle that effect solves existing Operating Pressure replacement polished rod is long, and downtime is long, the low problem of productivity.
The technical scheme is that realized by following measures：A kind of replaceable polished rod packing kit for thermal recovery, including
Polished rod holds seal tightly, and it includes holding seal casinghousing, seal assembly tightly and holding component tightly that polished rod, which holds seal tightly, holds seal casinghousing tightly
On circumferentially have at least two groups seal assembly, the seal assembly can be to inside and outside movement, and all seal assemblies are moved to
It can be sealed with being formed on the outside of polished rod when inner end, holding tightly on seal casinghousing circumferentially has at least two groups holding component, and described armful
Tight component can be to inside and outside movement, and when all holdings components are moved to inner end is capable of clamping in the outer groove of polished rod and is erecting to it
Histogram is upwardly formed limit.
Here is the further optimization and/or improvements to invention technology described above scheme：
Above-mentioned seal assembly and the quantity for holding component tightly can be two groups, and seal assembly is located at the top for holding component tightly, sealing group
The symmetrical distribution of part, and it is symmetrical in front and back to hold component tightly.
Above-mentioned seal assembly may include successively being installed on to hold the intracorporal sealing block of capsul, fixed block and close tightly from the inside to the outside
Seal valve rod, the outer end of sealing block and the inner end of fixed block be mounted together and the two can synchronize move left and right, fixed block
Outer end and the inner end of sealed valve stem are mounted together, and sealed valve stem can be rotated relative to fixed block and the two can synchronize left and right and move
Dynamic, the outer end of sealed valve stem, which stretches out in, holds tightly on the outside of seal casinghousing, and sealed valve stem and holding seal casinghousing pass through motion thread
It links together；The inner end of sealing block is equipped with arc-shaped sealed passage up and down, and the arc-shaped sealing of all sealing blocks is logical
Road split can form cylindrical seal channel；Holding component tightly includes successively being installed on to hold the intracorporal holding of capsul tightly from the inside to the outside
Block and holding apical axis, the outer end for holding block tightly and the inner end for holding apical axis tightly are mounted together, and block can be held tightly relatively by holding apical axis tightly
Rotation and the two can synchronize back-and-forths motion, hold tightly apical axis outer end stretch out in hold tightly seal casinghousing on the outside of, and hold tightly apical axis with armful
Tight seal casinghousing is linked together by motion thread；The inner end of block is held tightly equipped with arc-shaped holding channel up and down, institute
There is the arc-shaped holding channel split for holding block tightly that can form cylindrical holding channel.
Above-mentioned holding seal casinghousing may include outer cover body, left and right gland and front and back gland, and the middle part of outer cover body is equipped with
Bar channel up and down, outer cover body are equipped with the seal chamber of left and right perforation and the holding chamber of front and back perforation, outer cover body
The left and right sides be fixedly installed with the left and right gland of close encapsulation chamber respectively, the front and rear sides of outer cover body are separately installed with closing
Hold the front and back gland of chamber tightly；Sealing block, fixed block and sealed valve stem are respectively positioned in seal chamber, and the inner end of fixed block is equipped with interior limit
Slot, the outer end of sealing block are equipped with the inner limited block being embedded in interior limiting slot, and inner limited block is connected to one by pin shaft with fixed block
It rises, the outer end of fixed block is equipped with outer limiting slot, and the inner end of sealed valve stem is equipped with the outer limited block being set in outer limiting slot, corresponding
The outer end of the fixed block of outer limited block outer fix is fixedly installed with anti-withdrawing nut, and anti-withdrawing nut is set on the outside of sealed valve stem,
The outer diameter of outer limited block or circumscribed circular diameter are greater than the internal diameter of anti-withdrawing nut, and the outer end of sealed valve stem is piercing in corresponding left and right pressure
The outside of lid, and sealed valve stem is linked together with left and right gland by motion thread；It holds block tightly and holding apical axis is respectively positioned on and embraces
Tight intracavitary, the outer end for holding block tightly is equipped with T-slot, and the inner end for holding apical axis tightly, which is equipped with, can be embedded in T-slot and can rotate relative to T-slot
Clamping block, the outer end for holding apical axis tightly is piercing in the outside of corresponding front and back gland, and holds apical axis tightly and front and back gland passes through biography
It is dynamic to be threaded togather, it holds tightly to be equipped between apical axis and front and back gland and holds sealing element tightly.
It is above-mentioned to may also include the fixed peace in top that seal casinghousing with the top seal body for forming sealing on the outside of polished rod, be held tightly
Equipped with top seal body；Top seal body includes packing_seal body and injecting glue seal, hold tightly the top of seal casinghousing by up to
Under be connected with packing_seal body and injecting glue seal in turn, the packing_seal body and injecting glue seal can be with shapes on the outside of polished rod
At sealing.
Above-mentioned packing_seal body may include packing_seal shell, sealed briquette, tower packing, packing base ring, packing compression
Part, packing centering ring and packing scrape rubber ring, and the packing compressing member, packing base ring, packing centering ring and packing scrape the equal energy of rubber ring
It is set on the outside of polished rod, the tower packing can be located on the outside of polished rod and seal with being formed on the outside of polished rod, packing_seal shell
The upper inner of lower outside and injecting glue seal is fixedly installed togather, and the middle part of packing_seal shell is equipped with up and down
Packing channel is equipped with packing limited ring dais in packing channel, and sealing pressure has from top to bottom been sequentially distributed on the inside of packing upper part of channel
Block, tower packing and packing base ring, on packing limited ring dais, the upper outside of packing_seal shell is equipped with packing base ring seat
Push against the packing compressing member of sealed briquette upper surface, in the packing channel of corresponding packing limited ring dais lower position from top to bottom according to
It is secondary packing centering ring to be distributed with and packing scrapes rubber ring.
Above-mentioned packing compressing member may include tubular gland and locking back of the body cap, and tubular gland includes cover board and connection ring set, lid
The middle part of plate is equipped with the central through hole that can be set on the outside of polished rod, and the lower end of cover board is fixed together with the upper end for connecting ring set,
The bottom surface seat of cover board is connected in the upper outside of the lower inside and packing_seal shell that on sealed briquette, connect ring set by screw thread
It connects and is fixedly installed togather, the inside of locking back of the body cap and the upper outside of packing_seal shell are connected through a screw thread and are fixedly mounted on
Together, the upper surface of locking back of the body cap is against on the bottom surface of connection ring set.
Above-mentioned injecting glue seal may include injecting glue seal casinghousing, annular sleeve, injecting glue supporting positive cover, injecting glue scrapes rubber ring, injecting glue is helped
Positive ring and injecting glue component, the annular sleeve, injecting glue supporting positive cover, injecting glue, which scrape rubber ring, injecting glue centering ring, can be set on the outside of polished rod,
The lower outside of injecting glue seal casinghousing is fixedly installed togather with the upper inner for holding seal casinghousing tightly, in injecting glue seal casinghousing
Portion is equipped with glue injection channel up and down, and the top of glue injection channel is equipped with injecting glue limited ring groove, is set in injecting glue limited ring groove
Seat is corresponded in being equipped with the injecting glue limited ring dais being located at below annular sleeve in the annular sleeve of injecting glue limited ring groove slot bottom, glue injection channel
Injecting glue supporting positive cover has from top to bottom been sequentially distributed in the glue injection channel of injecting glue limited ring dais lower position, injecting glue scrapes rubber ring and injecting glue
Centering ring, the lower part of glue injection channel are fixedly installed with the support base that can limit injecting glue centering ring, corresponding annular sleeve and injecting glue righting
Injecting glue seal chamber is formed between set in the glue injection channel of position, circumferentially has at least one and injecting glue on injecting glue seal casinghousing
The injecting glue side outlet that seal chamber communicates is mounted on the injecting glue component that can be opened and closed, the injecting glue component in each injecting glue side outlet
Injecting glue side outlet can be opened when opening and can block injecting glue side outlet when closed.
The outside of above-mentioned support base can be connected through a screw thread with glue injection channel and be fixedly installed togather, and the middle part of support base is
Three-level stepped hole up and down, three-level stepped hole include major diameter section, path section and construction section, and injecting glue frictioning ring set is loaded on major diameter
In section, injecting glue centering ring is set in path section, and the section of construction section is regular polygon, and injecting glue righting block set scrapes rubber ring in injecting glue
On.
Above-mentioned injecting glue component may include adhesive pouring nozzle and bolt switch, be equipped with adhesive pouring nozzle on injecting glue side outlet, adhesive pouring nozzle
Middle part is equipped with injecting glue through-hole, and the bolt switch that can block and open injecting glue through-hole is equipped on adhesive pouring nozzle.
Structure of the invention is reasonable and compact, and the setting by holding component tightly can clamp at the outer groove of polished rod, together
When polished rod outer groove upper surface can to polished rod clamp play the role of insurance, thus can without on the outside of polished rod additional installation card
The suspension operation of polished rod can be completed in son, easy to operate, convenient and efficient, can be risen to the outside of polished rod by the setting of seal assembly
To sealing function, due to the state that seal assembly seals in the oil pumping process of polished rod in contact, polished rod was being pumped
Above mentioning in journey will not cause to wear with lower section operation to seal assembly, and the sealing for making seal assembly be only used for polished rod can effectively be kept away
Exempt from seal failure, there is good safety, can effectively prevent the generation of gas blowout accident, and seal assembly even can also be to well
Lower pressure plays sealing function, without pouring into well killing fluid and again steam injection, is able to maintain wellhead temperature, shortens kill-job operation week
Phase reduces cost, shortens downtime, improves productivity.
Detailed description of the invention
Attached drawing 1 is the main view half section schematic of preferred embodiment.
Attached drawing 2 is the left view schematic cross-sectional view of attached drawing 1.
Coding in attached drawing is respectively：1 is polished rod, and 2 be outer groove, and 3 be sealing block, and 4 be fixed block, and 5 be sealed valve stem,
6 is hold block tightly, and 7 is hold apical axis tightly, and 8 be outer cover body, and 9 be left and right gland, and 10 be front and back gland, and 11 be inner limited block, and 12 are
Pin shaft, 13 be outer limited block, and 14 be anti-withdrawing nut, and 15 is clamp block, and 16 be sealing ring, and 17 be pressure cap, and 18 be packing_seal shell
Body, 19 be sealed briquette, and 20 be tower packing, and 21 be packing base ring, and 22 be packing centering ring, and 23 scrape rubber ring for packing, and 24 are
Packing limited ring dais, 25 be locking back of the body cap, and 26 be cover board, and 27 is connect ring set, and 28 be injecting glue seal casinghousing, and 29 be annular sleeve,
30 be injecting glue supporting positive cover, and 31 scrape rubber ring for injecting glue, and 32 be injecting glue centering ring, and 33 be injecting glue limited ring dais, and 34 be support base, and 35 are
Adhesive pouring nozzle, 36 switch for bolt, and 37 be cup packing, and 38 be sealant.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 1
Butut mode be described, such as：The positional relationship of front, rear, top, and bottom, left and right etc. is the Butut according to Figure of description
Direction determines.
Below with reference to examples and drawings, the invention will be further described：
As shown in attached drawing 1,2, which includes that polished rod holds seal tightly, and polished rod holds seal tightly and includes
It holds seal casinghousing, seal assembly tightly and holds component tightly, holding tightly on seal casinghousing circumferentially has at least two groups seal assembly, institute
Stating seal assembly can be to inside and outside movement, and when all seal assemblies are moved to inner end can seal with being formed on the outside of polished rod 1, hold tightly close
Circumferentially there are at least two groups to hold component tightly on capsule body, the holding component can be to inside and outside movement, and all holding components
It is capable of clamping when being moved to inner end in the outer groove 2 of polished rod 1 and forms limit in the vertical direction to it.
According to demand, the top for holding seal casinghousing tightly can be fixedly installed with conventionally known top seal body, the top
It seals to be formed on the outside of physical efficiency and polished rod 1 and seal；The present invention is suitable for the replacement operation with pressure of polished rod 1, and the polished rod 1 should include extremely
The outside of few two bodies of rod and the underlying body of rod should be equipped with outer groove 2, and the outside of the polished rod 1 can also be equipped with graduation mark,
So as to above mention position according to what graduation mark judge outer groove 2 convenient for user, it is ensured that holding component can be clamped in outer groove 2.
In use, the present invention is first mounted on the outside of polished rod 1, when needing replacing polished rod 1, can first make top seal body to polished rod 1 outside
Side keeps sealing function, and top seal physical efficiency plays good sealing function to the polished rod 1 during above mentioning, can make to seal later
Component and holding component are displaced outwardly, and the outer groove 2 that then can above mention polished rod 1 to polished rod 1 is corresponding to hold component position tightly,
Seal assembly and holding component are moved into inner end again, at the outer groove 2 that polished rod 1 is clamped by holding component tightly, and pass through sealing
Component seals 1 outside of polished rod, can carry out replacement operation to the body of rod for the polished rod 1 being located above later；By making to be located on polished rod 1
Outer groove 2 is equipped on the outside of the body of rod of lower section can be such that holding component is clamped at outer groove 2, and the upper surface of outer groove 2 can position at this time
In the top for holding component tightly, and play the role of insurance to the clamping of polished rod 1, if occur polished rod 1 do not clamp and in gravity
The situation fallen under effect, the upper surface of outer groove 2 also can seat in hold tightly component on, avoid polished rod 1 slip, it is ensured that polished rod 1 is more
The stability changed.Structure of the invention is reasonable and compact, and the setting by holding component tightly can clamp the outer groove 2 of polished rod 1
Place, while 2 upper surface of outer groove of polished rod 1 can clamp polished rod 1 and play the role of insurance, it thus can be without in 1 outside of polished rod
The suspension operation of polished rod 1 can be completed in additional installation clip, easy to operate, convenient and efficient, can be right by the setting of seal assembly
Sealing function is played in the outside of polished rod 1, the state due to seal assembly in contact sealing in the oil pumping process of polished rod 1, because
This polished rod 1 above mentioning in oil pumping process will not cause to wear with lower section operation to seal assembly, and seal assembly is made to be only used for light
The sealing of bar 1 can effectively avoid seal failure, have good safety, can effectively prevent the generation of gas blowout accident, and seal
Component even can also play sealing function to down-hole pressure, without pouring into well killing fluid and again steam injection, be able to maintain well head
Temperature shortens kill-job duty cycle, reduces cost, shortens downtime, improves productivity.
Above-mentioned replaceable polished rod packing kit for thermal recovery can be made further optimization and/or improvements according to actual needs：
As shown in attached drawing 1,2, seal assembly and the quantity for holding component tightly are two groups, and seal assembly, which is located at, holds the upper of component tightly
Side, the symmetrical distribution of seal assembly, and it is symmetrical in front and back to hold component tightly.Thus it can make the stress for holding seal casinghousing tightly
It is more stable, and convenient for the setting of seal assembly and holding component, prevent the two from interfering, and convenient for its installation.
As shown in attached drawing 1,2, seal assembly include successively be installed on from the inside to the outside hold tightly the intracorporal sealing block 3 of capsul,
The outer end of fixed block 4 and sealed valve stem 5, sealing block 3 is mounted together with the inner end of fixed block 4 and the two can synchronous left and right
Mobile, the outer end of fixed block 4 and the inner end of sealed valve stem 5 are mounted together, and sealed valve stem 5 can be rotated relative to fixed block 4
And the two can be synchronized and be moved left and right, the outer end of sealed valve stem 5, which stretches out in, holds tightly on the outside of seal casinghousing, and sealed valve stem 5 and holding
Seal casinghousing is linked together by motion thread；The inner end of sealing block 3 is equipped with arc-shaped sealed passage up and down, owns
The arc-shaped sealed passage split of sealing block 3 can form cylindrical seal channel；Holding component tightly includes successively installing from the inside to the outside
In holding the intracorporal holding block 6 of capsul tightly and holding apical axis 7 tightly, the outer end for holding block 6 tightly is installed in the inner end for holding apical axis 7 tightly
Together, holding apical axis 7 can be rotated relative to block 6 is held tightly and the two can synchronize back-and-forth motion, and the outer end for holding apical axis 7 tightly stretches out in holding
On the outside of seal casinghousing, and holds apical axis 7 tightly and linked together with holding seal casinghousing by motion thread；The inner end for holding block 6 tightly is set
There is arc-shaped holding channel up and down, all arc-shaped holding channel splits for holding block 6 tightly can form cylindrical hold tightly and lead to
Road.Thus moving in or out for sealing block 3 can be driven by rotatory sealing valve rod 5, the drive of axis 7 is pressed closer by rotating holding and is embraced
Tight block 6 moves in or out.According to demand, closure gasket groove, fixed block 4 and sealing can be equipped on the outside of the outer end of sealing block 3
The cup packing 37 that can be equipped between block 3 in inner end embedding sealing annular groove.
As shown in attached drawing 1,2, holding seal casinghousing tightly includes outer cover body 8, left and right gland 9 and front and back gland 10, shell sheet
The middle part of body 8 is equipped with bar channel up and down, and outer cover body 8 is equipped with the seal chamber of left and right perforation and embracing for front and back perforation
Tight chamber, the left and right sides of outer cover body 8 are fixedly installed with the left and right gland 9 of close encapsulation chamber, the front and back two of outer cover body 8 respectively
Side is separately installed with the front and back gland 10 that chamber is held in closing tightly；Sealing block 3, fixed block 4 and sealed valve stem 5 are respectively positioned in seal chamber,
The inner end of fixed block 4 is equipped with interior limiting slot, and the outer end of sealing block 3 is equipped with the inner limited block 11 being embedded in interior limiting slot, interior limit
Block 11 is linked together with fixed block 4 by pin shaft 12, and the outer end of fixed block 4 is equipped with outer limiting slot, and the inner end of sealed valve stem 5 is set
There is the outer limited block 13 being set in outer limiting slot, the outer end of the fixed block 4 of corresponding outer 13 outer fix of limited block is fixedly mounted
There is anti-withdrawing nut 14, anti-withdrawing nut 14 is set in 5 outside of sealed valve stem, and the outer diameter or circumscribed circular diameter of outer limited block 13 are greater than anti-
The internal diameter of withdrawing nut 14, the outer end of sealed valve stem 5 is piercing in the outside of corresponding left and right gland 9, and sealed valve stem 5 and left and right are pressed
Lid 9 is linked together by motion thread；Hold tightly block 6 and hold tightly apical axis 7 be respectively positioned on hold tightly it is intracavitary, hold tightly block 6 outer end be equipped with T
Shape slot, the inner end for holding apical axis 7 tightly, which is equipped with, can be embedded in T-slot and can hold apical axis 7 tightly relative to the clamping block 15 of T-slot rotation
Outer end is piercing in the outside of corresponding front and back gland 10, and holds apical axis 7 tightly and be connected to one by motion thread with front and back gland 10
It rises, holds tightly to be equipped between apical axis 7 and front and back gland 10 and hold sealing element tightly.Thus it can make to hold sealing element tightly and hold the installation of component tightly
It is more convenient laborsaving.According to demand, holding sealing element tightly can be used existing well-known technique, and such as holding sealing element tightly may include sealing ring 16
With pressure cap 17, the outer end of front and back gland 10 is equipped with the inner groove for being looped around and holding 7 outside of apical axis tightly, in inner groove from the inside to the outside successively
Multiple sealing rings 16 for being set in and holding 7 outside of apical axis tightly are installed, the outer end of inner groove is fixedly installed with inner end and is against outermost
Existing well-known technique can be used in pressure cap 17 on sealing ring 16, the sealing ring 16, such as W type pressing ring or V-type pressing ring or W type pressing ring
With the combination of V-type pressing ring etc..
It further include that can hold seal casinghousing tightly with the top seal body for forming sealing on the outside of polished rod 1 as shown in attached drawing 1,2
Top is fixedly installed with top seal body；Top seal body includes packing_seal body and injecting glue seal, holds seal casinghousing tightly
Top is from top to bottom connected with packing_seal body and injecting glue seal in turn, and the packing_seal body and injecting glue seal can be with
Sealing is formed on the outside of polished rod 1.Thus the polished rod 1 above mentioned in operating process can be played by packing_seal body and injecting glue seal
Good sealing function.According to demand, existing well-known technique also can be used in top seal body.
As shown in attached drawing 1,2, packing_seal body includes packing_seal shell 18, sealed briquette 19, tower packing 20, packing
Base ring 21, packing compressing member, packing centering ring 22 and packing scrape rubber ring 23, and the packing compressing member, packing base ring 21, packing are helped
Positive ring 22 and packing, which scrape rubber ring 23, can be set in 1 outside of polished rod, and the tower packing 20 can be located at 1 outside of polished rod and and polished rod
1 outside forms sealing, and the upper inner of the lower outside and injecting glue seal of packing_seal shell 18 is fixedly installed togather, disk
The middle part of root seal casinghousing 18 is equipped with packing channel up and down, and packing limited ring dais 24 is equipped in packing channel, and packing is logical
Road upper inner has from top to bottom been sequentially distributed sealed briquette 19, tower packing 20 and packing base ring 21, packing base ring 21 in
On packing limited ring dais 24, the upper outside of packing_seal shell 18 is equipped with the packing compression for pushing against 19 upper surface of sealed briquette
Part corresponds in the packing channel of 24 lower position of packing limited ring dais and has from top to bottom been sequentially distributed packing centering ring 22 and packing
Scrape rubber ring 23.Thus good sealing function can be played to polished rod 1 by tower packing 20, passes through the setting of packing centering ring 22
Centralizing function can be played to moving up and down for polished rod 1, reduce 1 eccentric wear of polished rod, can will be adhered to by the setting that packing scrapes rubber ring 23
Energy sealant 38 resistant to high temperature on polished rod 1 strikes off, it is ensured that 1 stability under loading of polished rod helps to prolong its service life.According to
Demand, packing, which scrapes rubber ring 23, can be used existing well-known technique, such as c-type scrapes rubber ring.
As shown in attached drawing 1,2, packing compressing member includes tubular gland and locking back of the body cap 25, and tubular gland includes 26 He of cover board
Connect ring set 27, the middle part of cover board 26 is equipped with the central through hole that can be set in 1 outside of polished rod, the lower end of cover board 26 with connect ring set
27 upper end is fixed together, and the bottom surface seat of cover board 26 is close in lower inside and the packing on sealed briquette 19, connecting ring set 27
The upper outside of capsule body 18, which is connected through a screw thread, to be fixedly installed togather, the inside of locking back of the body cap 25 and packing_seal shell 18
Upper outside be connected through a screw thread and be fixedly installed togather, the upper surface of locking back of the body cap 25 is against the bottom surface of connection ring set 27
On.Thus packing compressing member can be enable to push against the upper surface of sealed briquette 19, tubular can be prevented by the setting of locking back of the body cap 25
The threaded connection place of gland loosens, and so that packing compressing member is kept abutting effect to sealed briquette 19, and then keep packing_seal
Leakproofness of the body to polished rod 1.According to demand, cover board 26 can be wholely set with ring set 27 is connect.
As shown in attached drawing 1,2, injecting glue seal includes injecting glue seal casinghousing 28, annular sleeve 29, injecting glue supporting positive cover 30, injecting glue
Rubber ring 31, injecting glue centering ring 32 and injecting glue component are scraped, the annular sleeve 29, injecting glue supporting positive cover 30, injecting glue scrape rubber ring 31, injecting glue is helped
Positive ring 32 can be set in 1 outside of polished rod, and the lower outside of injecting glue seal casinghousing 28 and the upper inner for holding seal casinghousing tightly are solid
Dingan County is fitted together, and the middle part of injecting glue seal casinghousing 28 is equipped with glue injection channel up and down, and the top of glue injection channel is equipped with note
Glue limited ring groove is set with seat in injecting glue limited ring groove and is equipped in the annular sleeve 29 of injecting glue limited ring groove slot bottom, glue injection channel
Injecting glue limited ring dais 33 positioned at the lower section of annular sleeve 29, in the glue injection channel of corresponding 33 lower position of injecting glue limited ring dais by up to
Under be sequentially distributed injecting glue supporting positive cover 30, injecting glue scrapes rubber ring 31 and injecting glue centering ring 32, the lower part of glue injection channel is fixedly installed with
The support base 34 of injecting glue centering ring 32 can be limited, shape in the glue injection channel of position between corresponding annular sleeve 29 and injecting glue supporting positive cover 30
At injecting glue seal chamber, the injecting glue side for circumferentially having at least one to communicate with injecting glue seal chamber on injecting glue seal casinghousing 28 goes out
Mouthful, the injecting glue component that can be opened and closed is mounted in each injecting glue side outlet, the injecting glue component can open injecting glue side when opening
It exports and injecting glue side outlet can be blocked when closed.When in use, unlatching can be first passed through after penetrating polished rod 1 in the present invention
Injecting glue component is to open injecting glue side outlet, so as to inject in injecting glue seal chamber sealant 38 by injecting glue side outlet, is inciting somebody to action
Sealant 38 can block injecting glue side outlet by closing injecting glue component after filling injecting glue seal chamber, so as to close injecting glue sealing
Chamber avoids sealant 38 from revealing, and sealant 38 can be sealed with being formed on the outside of polished rod 1 at this time；It is helped by injecting glue supporting positive cover 30 and injecting glue
The setting of positive ring 32 can play centralizing function to moving up and down for polished rod 1, reduce 1 eccentric wear of polished rod, scrape rubber ring 31 by injecting glue
The energy being adhered on polished rod 1 sealant 38 resistant to high temperature can be struck off by being arranged, and be avoided sealant in the moving up and down of polished rod 1
It takes injecting glue seal chamber out of, reduces the loss of sealant, make to be able to maintain good leakproofness between sealant and polished rod 1.According to need
It asks, existing well-known technique, such as copper packing can be used for energy sealant 38 resistant to high temperature, annular sleeve 29 in the sealant 38, infuse
Glue, which scrapes rubber ring 31, can be used existing well-known technique, such as c-type scrapes rubber ring.
As shown in attached drawing 1,2, the outside of support base 34 is connected through a screw thread with glue injection channel to be fixedly installed togather, support
The middle part of seat 34 is three-level stepped hole up and down, and three-level stepped hole includes major diameter section, path section and construction section, injecting glue frictioning
Ring 31 is set in major diameter section, and injecting glue centering ring 32 is set in path section, and the section of construction section is regular polygon, injecting glue righting
30, set is scraped in rubber ring 31 in injecting glue.Thus position-limiting action can be played to injecting glue centering ring 32 by support base 34, passes through installation
The setting of section can make the easier for installation laborsaving of support sleeve.According to demand, the section of construction section can square or positive six side
Shape.
As shown in attached drawing 1,2, injecting glue component includes adhesive pouring nozzle 35 and bolt switch 36, is equipped with injecting glue on injecting glue side outlet
Mouth 35, the middle part of adhesive pouring nozzle 35 are equipped with injecting glue through-hole, and the bolt of injecting glue through-hole can be blocked and open by, which being equipped on adhesive pouring nozzle 35, opens
Close 36.Thus injecting glue operation can be realized by opening injecting glue component, and energy can be prevented resistant to high temperature close by closing injecting glue component
Sealing 38 is revealed.According to demand, existing well-known technique can be used in adhesive pouring nozzle 35 and bolt switch 36.
The above technical characteristic constitutes highly preferred embodiment of the present invention, with stronger adaptability and best implementation effect
Fruit can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (10)
1. a kind of replaceable polished rod packing kit for thermal recovery, it is characterised in that hold seal tightly including polished rod, polished rod holds seal packet tightly
It includes and holds seal casinghousing, seal assembly tightly and hold component tightly, holding tightly on seal casinghousing circumferentially has at least two groups seal assembly,
The seal assembly can be to inside and outside movement, and when all seal assemblies are moved to inner end can seal with being formed on the outside of polished rod, hold tightly
Circumferentially there are at least two groups to hold component tightly on seal casinghousing, the holding component can be to inside and outside movement, and all holding groups
Part is capable of clamping in the outer groove of polished rod when being moved to inner end and forms limit in the vertical direction to it.
2. replaceable polished rod packing kit for thermal recovery according to claim 1, it is characterised in that seal assembly and holding component
Quantity is two groups, before seal assembly is located at the top for holding component tightly, the symmetrical distribution of seal assembly, and holding component is in
It is symmetrical afterwards.
3. replaceable polished rod packing kit for thermal recovery according to claim 2, it is characterised in that seal assembly includes from the inside to the outside
It is successively installed on and holds the intracorporal sealing block of capsul, fixed block and sealed valve stem, the outer end of sealing block and the inner end of fixed block tightly
It is mounted together and the two can be synchronized and be moved left and right, the outer end of fixed block and the inner end of sealed valve stem are installed in one
It rises, sealed valve stem can be rotated relative to fixed block and the two can be synchronized and be moved left and right, and the outer end of sealed valve stem stretches out in holding sealing
Hull outside, and sealed valve stem is linked together with holding seal casinghousing by motion thread；The inner end of sealing block is equipped with up and down
The arc-shaped sealed passage of perforation, the arc-shaped sealed passage split of all sealing blocks can form cylindrical seal channel；It holds tightly
Component includes successively being installed on to hold the intracorporal holding block of capsul tightly and hold apical axis tightly from the inside to the outside, holds outer end and the holding of block tightly
The inner end of apical axis is mounted together, and holding apical axis can be rotated relative to block is held tightly and the two can synchronize back-and-forth motion, holds top tightly
The outer end of axis, which stretches out in, holds tightly on the outside of seal casinghousing, and holds apical axis tightly and hold seal casinghousing tightly and be connected to one by motion thread
It rises；The inner end of block is held tightly equipped with arc-shaped holding channel up and down, all arc-shaped holding channel split energy for holding blocks tightly
Form cylindrical holding channel.
4. replaceable polished rod packing kit for thermal recovery according to claim 3, it is characterised in that holding seal casinghousing tightly includes shell
Ontology, left and right gland and front and back gland, the middle part of outer cover body are equipped with bar channel up and down, and outer cover body is equipped with a left side
The holding chamber of the seal chamber of right perforation and front and back perforation, the left and right sides of outer cover body is fixedly installed with close encapsulation chamber respectively
Left and right gland, the front and rear sides of outer cover body are separately installed with the front and back gland that chamber is held in closing tightly；Sealing block, fixed block and sealing
Valve rod is respectively positioned in seal chamber, and the inner end of fixed block is equipped with interior limiting slot, and the outer end of sealing block, which is equipped with, to be embedded in interior limiting slot
Inner limited block, inner limited block and fixed block are linked together by pin shaft, and the outer end of fixed block is equipped with outer limiting slot, sealed valve stem
Inner end be equipped with the outer limited block that is set in outer limiting slot, the fixed peace in the outer end of the fixed block of corresponding outer limited block outer fix
Equipped with anti-withdrawing nut, anti-withdrawing nut is set on the outside of sealed valve stem, and the outer diameter of outer limited block or circumscribed circular diameter are greater than anti-back spiral shell
Female internal diameter, the outer end of sealed valve stem is piercing in the outside of corresponding left and right gland, and sealed valve stem and left and right gland pass through biography
It is dynamic to be threaded togather；Hold tightly block and hold tightly apical axis be respectively positioned on hold tightly it is intracavitary, hold tightly block outer end be equipped with T-slot, hold tightly top
The inner end of axis be equipped with can be embedded in T-slot and can the clamping block that rotates of opposite T-slot, hold tightly apical axis outer end be piercing in it is corresponding
The outside of front and back gland, and hold apical axis tightly and linked together with front and back gland by motion thread, hold apical axis and front and back gland tightly
Between be equipped with hold tightly sealing element.
5. replaceable polished rod packing kit for thermal recovery according to claim 1 or 2 or 3 or 4, it is characterised in that further including can be with light
The top seal body of sealing is formed on the outside of bar, the top for holding seal casinghousing tightly is fixedly installed with top seal body；Top seal body
Including packing_seal body and injecting glue seal, the top for holding seal casinghousing tightly is from top to bottom connected with packing_seal body and note in turn
Glue seal, the packing_seal body and injecting glue seal can be sealed with being formed on the outside of polished rod.
6. replaceable polished rod packing kit for thermal recovery according to claim 5, it is characterised in that packing_seal body includes that packing is close
Capsule body, sealed briquette, tower packing, packing base ring, packing compressing member, packing centering ring and packing scrape rubber ring, the packing
Compressing member, packing base ring, packing centering ring and packing, which scrape rubber ring, can be set on the outside of polished rod, and the tower packing can be located at light
It is formed on the outside of bar and with polished rod outside and is sealed, the lower outside of packing_seal shell and the fixed peace of the upper inner of injecting glue seal
It being fitted together, the middle part of packing_seal shell is equipped with packing channel up and down, it is equipped with packing limited ring dais in packing channel,
It is from top to bottom sequentially distributed sealed briquette, tower packing and packing base ring on the inside of packing upper part of channel, packing base ring seat is in disk
On root limited ring dais, the upper outside of packing_seal shell is equipped with the packing compressing member for pushing against sealed briquette upper surface, corresponding
Packing centering ring has from top to bottom been sequentially distributed in the packing channel of packing limited ring dais lower position and packing scrapes rubber ring.
7. replaceable polished rod packing kit for thermal recovery according to claim 6, it is characterised in that packing compressing member includes tubular pressure
Lid and locking back of the body cap, tubular gland include cover board and connection ring set, and the middle part of cover board is equipped with the center that can be set on the outside of polished rod
Through-hole, the lower end of cover board are fixed together with the upper end for connecting ring set, and the bottom surface seat of cover board connects ring set on sealed briquette
Lower inside and the upper outside of packing_seal shell are connected through a screw thread and are fixedly installed togather, the inside of locking back of the body cap and disk
The upper outside of root seal casinghousing, which is connected through a screw thread, to be fixedly installed togather, and the upper surface of locking back of the body cap is against connection ring set
On bottom surface.
8. replaceable polished rod packing kit for thermal recovery according to claim 5, it is characterised in that injecting glue seal includes that injecting glue is close
Capsule body, annular sleeve, injecting glue supporting positive cover, injecting glue scrape rubber ring, injecting glue centering ring and injecting glue component, the annular sleeve, injecting glue righting
Set, injecting glue, which scrape rubber ring, injecting glue centering ring, can be set on the outside of polished rod, the lower outside and holding capsul of injecting glue seal casinghousing
The upper inner of body is fixedly installed togather, and the middle part of injecting glue seal casinghousing is equipped with glue injection channel up and down, glue injection channel
Top be equipped with injecting glue limited ring groove, be set with seat in the annular sleeve of injecting glue limited ring groove slot bottom, injecting glue in injecting glue limited ring groove
Be equipped with the injecting glue limited ring dais being located at below annular sleeve in channel, in the glue injection channel of corresponding injecting glue limited ring dais lower position by
Injecting glue supporting positive cover has been sequentially distributed under, injecting glue scrapes rubber ring and injecting glue centering ring, the lower part of glue injection channel is fixedly installed with energy
The support base of injecting glue centering ring is limited, forms injecting glue sealing between corresponding annular sleeve and injecting glue supporting positive cover in the glue injection channel of position
Chamber, the injecting glue side outlet for circumferentially thering is at least one to communicate with injecting glue seal chamber on injecting glue seal casinghousing, each injecting glue side
The injecting glue component that can be opened and closed is mounted in outlet, the injecting glue component can open injecting glue side outlet when opening and can close
When block injecting glue side outlet.
9. replaceable polished rod packing kit for thermal recovery according to claim 6 or 7, it is characterised in that injecting glue seal includes injecting glue
Seal casinghousing, annular sleeve, injecting glue supporting positive cover, injecting glue scrape rubber ring, injecting glue centering ring and injecting glue component, and the annular sleeve, injecting glue are helped
Positive set, injecting glue, which scrape rubber ring, injecting glue centering ring, can be set in polished rod outside, and the lower outside and holding of injecting glue seal casinghousing seal
The upper inner of shell is fixedly installed togather, and the middle part of injecting glue seal casinghousing is equipped with glue injection channel up and down, and injecting glue is logical
The top in road is equipped with injecting glue limited ring groove, and seat is set in injecting glue limited ring groove in the annular sleeve of injecting glue limited ring groove slot bottom, note
The injecting glue limited ring dais being located at below annular sleeve is equipped in glue channel, in the glue injection channel for corresponding to injecting glue limited ring dais lower position
From top to bottom be sequentially distributed injecting glue supporting positive cover, injecting glue scrapes rubber ring and injecting glue centering ring, the lower part of glue injection channel is fixedly installed with
The support base of injecting glue centering ring can be limited, formation injecting glue is close in the glue injection channel of position between corresponding annular sleeve and injecting glue supporting positive cover
Seal chamber, the injecting glue side outlet for circumferentially thering is at least one to communicate with injecting glue seal chamber on injecting glue seal casinghousing, each injecting glue
The injecting glue component that can be opened and closed is mounted in side outlet, the injecting glue component can open injecting glue side outlet when opening and can close
Injecting glue side outlet is blocked when closing.
10. replaceable polished rod packing kit for thermal recovery according to claim 9, it is characterised in that the outside of support base and injecting glue are logical
Road, which is connected through a screw thread, to be fixedly installed togather, and the middle part of support base is three-level stepped hole up and down, three-level stepped hole packet
Major diameter section, path section and construction section are included, loaded in major diameter section, injecting glue centering ring is set in path section injecting glue frictioning ring set, peace
The section for filling section is regular polygon, and injecting glue righting block set is scraped in rubber ring in injecting glue；Or/and injecting glue component includes adhesive pouring nozzle and spiral shell
Bolt switchs, and adhesive pouring nozzle is equipped on injecting glue side outlet, and the middle part of adhesive pouring nozzle is equipped with injecting glue through-hole, is equipped with and can block on adhesive pouring nozzle
With the bolt switch for opening injecting glue through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811082897.1A CN108843268A (en) | 2018-09-17 | 2018-09-17 | Replaceable polished rod packing kit for thermal recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811082897.1A CN108843268A (en) | 2018-09-17 | 2018-09-17 | Replaceable polished rod packing kit for thermal recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843268A true CN108843268A (en) | 2018-11-20 |
Family
ID=64189196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811082897.1A Pending CN108843268A (en) | 2018-09-17 | 2018-09-17 | Replaceable polished rod packing kit for thermal recovery |
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| Country | Link |
|---|---|
| CN (1) | CN108843268A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820484A (en) * | 2019-11-15 | 2021-05-18 | 许继集团有限公司 | Optical fiber composite insulator |
| CN117072101A (en) * | 2023-10-16 | 2023-11-17 | 克拉玛依红山油田有限责任公司 | Polish rod dynamic and static integrated sealing valve body and method for quickly replacing packing |
| CN117108234A (en) * | 2023-10-24 | 2023-11-24 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205154053U (en) * | 2015-10-30 | 2016-04-13 | 承德石油高等专科学校 | Beam -pumping unit polished rod anticreep damper |
| CN107849911A (en) * | 2015-07-10 | 2018-03-27 | 通用电气石油和天然气压力控制有限公司 | For producing the adjustable locking drift of preventer application |
| CN207161034U (en) * | 2017-08-22 | 2018-03-30 | 克拉玛依胜利高原机械有限公司 | Injecting seals tuningout assembly and injecting tuningout polish rod seal device |
| CN207161032U (en) * | 2017-08-16 | 2018-03-30 | 克拉玛依市创铭石油科技有限公司 | Greasing polish rod seal device |
| CN207829845U (en) * | 2018-01-26 | 2018-09-07 | 克拉玛依胜利高原机械有限公司 | The split sealing device of polished rod |
| CN208718604U (en) * | 2018-09-17 | 2019-04-09 | 克拉玛依胜利高原机械有限公司 | Replaceable polished rod packing kit for thermal recovery |
-
2018
- 2018-09-17 CN CN201811082897.1A patent/CN108843268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107849911A (en) * | 2015-07-10 | 2018-03-27 | 通用电气石油和天然气压力控制有限公司 | For producing the adjustable locking drift of preventer application |
| CN205154053U (en) * | 2015-10-30 | 2016-04-13 | 承德石油高等专科学校 | Beam -pumping unit polished rod anticreep damper |
| CN207161032U (en) * | 2017-08-16 | 2018-03-30 | 克拉玛依市创铭石油科技有限公司 | Greasing polish rod seal device |
| CN207161034U (en) * | 2017-08-22 | 2018-03-30 | 克拉玛依胜利高原机械有限公司 | Injecting seals tuningout assembly and injecting tuningout polish rod seal device |
| CN207829845U (en) * | 2018-01-26 | 2018-09-07 | 克拉玛依胜利高原机械有限公司 | The split sealing device of polished rod |
| CN208718604U (en) * | 2018-09-17 | 2019-04-09 | 克拉玛依胜利高原机械有限公司 | Replaceable polished rod packing kit for thermal recovery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820484A (en) * | 2019-11-15 | 2021-05-18 | 许继集团有限公司 | Optical fiber composite insulator |
| CN112820484B (en) * | 2019-11-15 | 2022-07-15 | 许继集团有限公司 | Optical fiber composite insulator |
| CN117072101A (en) * | 2023-10-16 | 2023-11-17 | 克拉玛依红山油田有限责任公司 | Polish rod dynamic and static integrated sealing valve body and method for quickly replacing packing |
| CN117108234A (en) * | 2023-10-24 | 2023-11-24 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
| CN117108234B (en) * | 2023-10-24 | 2024-01-30 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
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