CN207229051U - Well head is from centering offset blow-out preventing polished rod sealer - Google Patents
Well head is from centering offset blow-out preventing polished rod sealer Download PDFInfo
- Publication number
- CN207229051U CN207229051U CN201720819225.9U CN201720819225U CN207229051U CN 207229051 U CN207229051 U CN 207229051U CN 201720819225 U CN201720819225 U CN 201720819225U CN 207229051 U CN207229051 U CN 207229051U
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- China
- Prior art keywords
- polished rod
- packing
- well head
- sealer
- ring
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Abstract
A kind of well head be the utility model is related to from centering offset blow-out preventing polished rod sealer.Its technical solution is：The lower end connection well head four-way of base assembly, reserve the working space of spring and high-strength abrasion-proof ball in the side of the base assembly, locked by the threaded engagement of silk plug, the upper end of base assembly is fixedly connected with seal bracket, the top of seal bracket is sealed by high abrasion elastic rubber and deviation correcting assembly, and circumference leaves tuningout gap；The deviation correcting assembly inner cavity is pyramidal structure, and inner cavity is equipped with wedge-shaped packing；Packing box inner sealing uses axial compression, equipped with the tapered packing of opening wear ring, ring-like opening wear resistant packing.Beneficial effect is：1. since the deviation correcting assembly of sealer has 360 ° of automatic deviation rectifying functions；2. since sealer is internally provided with disconnected de- blowout hookup, thus when oil pumping polish rod occurs disconnected de- high-strength abrasion-proof ball automatic-sealed bracket lower port under pressure sealing surface, prevent that crude oil sprays in pit shaft.
Description
Technical field
It the utility model is related to a kind of pumping well head sealing device, more particularly to a kind of well head is from centering offset blow-out preventing light
Rod sealer.
Background technology
Wellhead for production includes polished rod sealer, production tree and wellhead manifold, and polished rod sealer carries out oil pumping polish rod
Sealing, adjustment correction, are the important components of well recovery production process, main function：1. prevent high-pressure oil gas in pit shaft
Alter outside, 2. sealing wellhead oil pumping polish rod.Recently as the lasting deep mining in oil field, stratum energy is gradually decayed, and causes to pump
It is more and more deeper to hang position, pump extension is deeper, and sucker rod load is heavier, causes the well head eccentric wear and rod parting Frequent Accidents in later stage,
Crude oil is sprayed from pit shaft after rod parting, causes crude oil leakage and environmental pollution.In order to adapt to oil field long period of development and green
Environmentally friendly idea of development, oil wells in field special procure one kind energy automatic centering well head under sucker rod stress alternation and prevent eccentric wear and when oil pumping
When polished rod occurs disconnected de-, ball sealer inside the polished rod sealer automatic-sealed polished rod sealer under fluid power effect, prevents blowout.
The content of the invention
The purpose of this utility model is aiming at drawbacks described above existing in the prior art, there is provided a kind of well head is from centering tuningout
Blowout-prevention polished rod sealer, the tool construction is simple, execute-in-place is convenient, and instrument is adaptable, has automatic deflection adjusting centering well head
Function.
A kind of well head that the utility model is mentioned is from centering offset blow-out preventing polished rod sealer, its technical solution：Mainly by
Base assembly, seal bracket, high abrasion elastic rubber, deviation correcting assembly, wedge-shaped packing, anti-rotation pin, packing box, opening wear ring
Tapered packing, ring-like opening wear resistant packing, polished rod sliding sleeve, the first pressure cap, the second pressure cap, locking pressure cap, silk plug, spring and high-strength
Spend wear-resistant ball composition, the lower end connection well head four-way of the base assembly, the side of the base assembly reserve spring and
The working space of high-strength abrasion-proof ball, is locked by the threaded engagement of silk plug, and the upper end of base assembly is fixed with seal bracket to be connected
Connect, the top of seal bracket is sealed by high abrasion elastic rubber and deviation correcting assembly, and circumference leaves tuningout gap；Seal bracket
After screw thread with locking pressure cap screws, which makes sealer in 360 ° of 5~10mm of any direction displacement；The correction is total
It is pyramidal structure into inner cavity, inner cavity is equipped with wedge-shaped packing；The top of deviation correcting assembly be connected with packing box by anti-rotation pin it is spacing,
Prevent packing box from being rotated when polished rod is pumped with polished rod, the two is fastened by the second pressure cap with deviation correcting assembly using screwed connection；
The packing box inner sealing uses axial compression, airtight and watertight padding is produced radial deformation, is squeezed in polished rod table
Face forms clinging force and is sealed, and lubrication, the tapered packing of opening wear ring being internally provided with are realized by the crude oil of polished rod itself
（9）, it is ring-like opening wear resistant packing normal work when by polished rod sliding sleeve by the first pressure cap compress compensation abrasion.
Dust cover protection is arranged at above-mentioned locking pressure cap top.
The top of above-mentioned seal bracket carries ring packing groove boss, with high abrasion elastic rubber under pressure
Sealing is realized by the way that micro- compensation deformation occurs.
O-ring seal is equipped between above-mentioned deviation correcting assembly and packing box.
Above-mentioned packing box inner cavity is pyramidal structure.
It is high elasticity abrasion-proof material layer inside the above-mentioned tapered packing of opening wear ring, outside is high resiliency sealing material
Layer.
The beneficial effects of the utility model are：1. since the deviation correcting assembly of sealer has 360 ° of automatic deviation rectifying functions, institute
With polished rod sealer at work, no matter polished rod is toward which direction eccentric wear, all with automatic deviation rectifying function；2. due in sealer
Portion is equipped with disconnected de- blowout hookup, so the high-strength abrasion-proof ball automatic-sealed support under pressure when oil pumping polish rod occurs disconnected de-
The sealing surface of frame lower port, prevents in pit shaft crude oil to spray, and avoids the crude stream caused by rod parting and becomes estranged environmental pollution
Problem, is widely used in oilfield technology development field, is a kind of important rig tool.
Brief description of the drawings
Attached drawing 1 is the structure diagram of the utility model；
In upper figure：It is base assembly 1, seal bracket 2, high abrasion elastic rubber 3, deviation correcting assembly 4, wedge-shaped packing 5, O-shaped close
Seal 6, anti-rotation pin 7, packing box 8, the tapered packing 9 of opening wear ring, ring-like opening wear resistant packing 10, polished rod sliding sleeve 11, the
One pressure cap 12, the second pressure cap 13, dust cover 14, locking pressure cap 15, silk plug 16, spring 17 and high-strength abrasion-proof ball 18.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
A kind of well head that the utility model is mentioned is from centering offset blow-out preventing polished rod sealer, its technical solution：Mainly by
Base assembly 1, seal bracket 2, high abrasion elastic rubber 3, deviation correcting assembly 4, wedge-shaped packing 5, anti-rotation pin 7, packing box 8, open
The tapered packing 9 of mouth wear ring, ring-like opening wear resistant packing 10, polished rod sliding sleeve 11, the first pressure cap 12, the second pressure cap 13, locking pressure
Cap 15, silk plug 16, spring 17 and high-strength abrasion-proof ball 18 form, the lower end connection well head four-way of the base assembly 1, described
The side of base assembly 1 reserve the working space of spring 17 and high-strength abrasion-proof ball 18, the threaded engagement for passing through silk plug 16 is locked
Tightly, the upper end of base assembly 1 is fixedly connected with seal bracket 2, and the top of seal bracket 2 is by high abrasion elastic rubber 3 with entangling
Inclined assembly 4 seals, and circumference leaves tuningout gap；After the screw thread of seal bracket 2 and locking pressure cap 15 screws, which makes
Sealer is adapted to larger mouth eccentric and voluntarily adjusts in 360 ° of any direction 5~10mm of displacement, while axial also has
Larger move distance；4 inner cavity of deviation correcting assembly is pyramidal structure, and inner cavity is equipped with wedge-shaped packing 5；The top of deviation correcting assembly 4
It is connected with packing box 8 by anti-rotation pin 7 spacing, prevents packing box from being rotated when polished rod is pumped with polished rod, the two is by the second pressure
Cap 13 is fastened with deviation correcting assembly 4 using screwed connection；
8 inner sealing of packing box uses axial compression, airtight and watertight padding is produced radial deformation, is squeezed in polished rod table
Face forms clinging force and is sealed, by the crude oil realization lubrication of polished rod itself, the tapered packing 9 of opening wear ring being internally provided with,
Ring-like opening wear resistant packing 10 compresses compensation abrasion by polished rod sliding sleeve 11 in normal work by the first pressure cap 12.
Above-mentioned 15 top of locking pressure cap has dust cover 14 to protect, and avoids the dirt in dust and wind in air from falling into and entangles
In inclined assembly 4, it is ensured that polished rod sealer sealed reliable under the harsh operating mode exposed to the sun and rain, extends service life.
The top of above-mentioned seal bracket 2 carries ring packing groove boss, is acted on high abrasion elastic rubber 3 in pressure
Down sealing is realized by the way that micro- compensation deformation occurs.
The working space of spring 17 and high-strength abrasion-proof ball 18 is reserved in the side of base assembly 1, passes through the screw thread of silk plug 16
Locking is screwed, after rod parting, high-strength abrasion-proof ball 18 is ejected working region by spring 17, under the action of pit shaft fluid power
Sealed with the sealing surface of 2 lower port of seal bracket, prevent blowout.
O-ring seal 6 is equipped between above-mentioned deviation correcting assembly 4 and packing box 8, realizes packing box and the double density of deviation correcting assembly
Envelope, wherein, using wedge-shaped packing_seal, there is O-ring seal sealing in outside for inside.
Above-mentioned 8 inner cavity of packing box is pyramidal structure, and the tapered packing 9 of opening wear ring, ring-like opening wear resistant packing 10 are adopted
It is quick for installation with cartridge seal, ensure assembling quality；The inside of the tapered packing 9 of opening wear ring is that high resiliency is resistance to
Material layer is ground, outside is high resiliency sealing material layer, and sealing and abrasion resistant effect are more preferably.
Have anti-rotation pin 7 spacing between the deviation correcting assembly 4 and packing box 8, prevent packing box when polished rod is pumped with
Polished rod rotates, and causes sealing to fail, the two is fastened by the second pressure cap 13 with deviation correcting assembly 4 using screwed connection.
The operation principle of the utility model is：The utility model is installed on pithead position, in normal oil pumping, polished rod is done
Move back and forth, realize that first order sealing, the tapered packing of opening wear ring and ring-like opening wear resistant packing realize the by wedge-shaped packing
Secondary seal seals polished rod.Polished rod will be hit when the polished rod eye on pumping unit horsehead drives polished rod to pump
The problems such as sealer simultaneously produces vibration, and polished rod sealer is just subjected to displacement over time, well head misaligns occurs, this polished rod seal
Utensil has deviation-correcting function, the tuningout gap left by deviation correcting assembly circumference, which makes sealer 360 ° of any sides
To 5~10mm of displacement, it is adapted to larger mouth eccentric and voluntarily adjusts, while axially also has larger move distance, it is real
Existing polished rod automatic centering well head during pumping, prevents eccentric wear.It is easy that polished rod in reciprocating motion bears alternate load
Fatigue is produced, when reaching fatigue limit, polished rod is easily disconnected de-, and the high-strength abrasion-proof ball planted in advance inside this polished rod sealer is in liquid
The lower sealing surface with seal bracket lower end of power effect is sealed, and is prevented blowout, is preserved the ecological environment.
The above, is only the preferred embodiment of the utility model, and any those skilled in the art may profit
Equivalent technical solution is changed the utility model or is revised as with the technical solution of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out, belong to the greatest extent the requires of the utility model protection
Scope.
Claims (6)
1. a kind of well head is from centering offset blow-out preventing polished rod sealer, it is characterized in that：Mainly by base assembly（1）, seal bracket
（2）, high abrasion elastic rubber（3）, deviation correcting assembly（4）, wedge-shaped packing（5）, anti-rotation pin（7）, packing box（8）, opening it is wear-resisting
The tapered packing of ring（9）, ring-like opening wear resistant packing（10）, polished rod sliding sleeve（11）, the first pressure cap（12）, the second pressure cap（13）, lock
Press cap（15）, silk plug（16）, spring（17）With high-strength abrasion-proof ball（18）Composition, the base assembly（1）Lower end connect
Connect well head four-way, the base assembly（1）Side reserve spring（17）With high-strength abrasion-proof ball（18）Working space, lead to
Cross silk plug（16）Threaded engagement locking, base assembly（1）Upper end and seal bracket（2）It is fixedly connected, seal bracket（2）'s
Top passes through high abrasion elastic rubber（3）With deviation correcting assembly（4）Sealing, and circumference leaves tuningout gap；Seal bracket（2）With lock
Press cap（15）Screw thread screw after, which makes sealer in 360 ° of 5~10mm of any direction displacement；The correction is total
Into（4）Inner cavity is pyramidal structure, and inner cavity is equipped with wedge-shaped packing（5）；Deviation correcting assembly（4）Top and packing box（8）Pass through anti-rotation
Pin（7）Connect spacing, prevent packing box from being rotated when polished rod is pumped with polished rod, the two leans on the second pressure cap（13）With deviation correcting assembly
（4）Fastened using screwed connection；
The packing box（8）Inner sealing uses axial compression, airtight and watertight padding is produced radial deformation, is squeezed in polished rod surface
Form clinging force to be sealed, lubrication, the tapered packing of opening wear ring being internally provided with are realized by the crude oil of polished rod itself（9）、
Ring-like opening wear resistant packing（10）In normal work by polished rod sliding sleeve（11）By the first pressure cap（12）Compress compensation abrasion.
2. well head according to claim 1 is from centering offset blow-out preventing polished rod sealer, it is characterized in that：The locking pressure cap
（15）Dust cover is arranged at top（14）Protection.
3. well head according to claim 1 is from centering offset blow-out preventing polished rod sealer, it is characterized in that：The seal bracket
（2）Top carry ring packing groove boss, with high abrasion elastic rubber（3）Become under pressure by the way that micro- compensation occurs
Shape realizes sealing.
4. well head according to claim 1 is from centering offset blow-out preventing polished rod sealer, it is characterized in that：The deviation correcting assembly
（4）With packing box（8）Between be equipped with O-ring seal（6）.
5. well head according to claim 1 is from centering offset blow-out preventing polished rod sealer, it is characterized in that：The packing box
（8）Inner cavity is pyramidal structure.
6. well head according to claim 1 is from centering offset blow-out preventing polished rod sealer, it is characterized in that：The opening is wear-resisting
The tapered packing of ring（9）The inside be high elasticity abrasion-proof material layer, outside is high resiliency sealing material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819225.9U CN207229051U (en) | 2017-07-07 | 2017-07-07 | Well head is from centering offset blow-out preventing polished rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819225.9U CN207229051U (en) | 2017-07-07 | 2017-07-07 | Well head is from centering offset blow-out preventing polished rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229051U true CN207229051U (en) | 2018-04-13 |
Family
ID=61852070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819225.9U Expired - Fee Related CN207229051U (en) | 2017-07-07 | 2017-07-07 | Well head is from centering offset blow-out preventing polished rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404457A (en) * | 2021-06-24 | 2021-09-17 | 天鼎联创密封技术（北京）有限公司 | Wear-resistant and high-temperature-resistant composite sealing material and sealing element |
-
2017
- 2017-07-07 CN CN201720819225.9U patent/CN207229051U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404457A (en) * | 2021-06-24 | 2021-09-17 | 天鼎联创密封技术（北京）有限公司 | Wear-resistant and high-temperature-resistant composite sealing material and sealing element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20180707 |