CN214836236U - Polish rod sealer - Google Patents
Polish rod sealer Download PDFInfo
- Publication number
- CN214836236U CN214836236U CN202120380620.8U CN202120380620U CN214836236U CN 214836236 U CN214836236 U CN 214836236U CN 202120380620 U CN202120380620 U CN 202120380620U CN 214836236 U CN214836236 U CN 214836236U
- Authority
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- China
- Prior art keywords
- sealing
- pipe
- rod sealer
- polish rod
- component
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 210
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000012856 packing Methods 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 210000004907 gland Anatomy 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a polish rod sealer, which comprises a first sealing device, wherein the first sealing device comprises a first sealing pipe, a first sealing part and an elastic part; the first sealing part is movably arranged in the first sealing pipe and divides the inner space of the first sealing pipe into a first chamber and a second chamber; the elastic component is installed in the first cavity, one end of the elastic component is connected with the first sealing component, and the other end of the elastic component abuts against the end portion, far away from the first sealing component, of the first cavity. The utility model provides a polished rod sealer is through being equipped with elastomeric element in the first cavity of first sealed tube to add the seal packing in another cavity, rely on elastomeric element's elasticity can realize automatic compensation to the seal packing, need not frequently annotate the material in polished rod operating cycle, can guarantee the continuous normal safety in production of oil well.
Description
Technical Field
The utility model relates to a rod-pumped well equipment technical field specifically, relates to a polished rod sealer.
Background
The vast majority of oil fields use reciprocating pumping units for oil recovery. When the reciprocating oil pumping machine works, the polished rod eye is connected with the oil pumping rod through the polished rod, the piston of the reciprocating pump is driven to do reciprocating motion, energy is provided for petroleum in the form of pressure energy, the petroleum is pumped to the ground, and then the petroleum is conveyed to a gathering and transportation station through a pipeline. The polished rod produces sliding fit with the wellhead assembly in the reciprocating motion process, and if a gap is produced between the fit contact surfaces in the working process, oil with pressure can leak out of the well through the gap, so that environmental pollution and oil waste are caused. Therefore, a polish rod sealer having excellent sealing performance needs to be configured.
In view of this, the present invention is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, the utility model provides a can realize automatic compensation's polished rod sealer to gland packing.
In order to solve the technical problem, the utility model adopts the following basic concept:
the utility model provides a polish rod sealer, which comprises a first sealing device, wherein the first sealing device comprises a first sealing pipe, a first sealing part and an elastic part;
the first sealing part is movably arranged in the first sealing pipe and divides the inner space of the first sealing pipe into a first chamber and a second chamber;
the elastic component is installed in the first cavity, one end of the elastic component is connected with the first sealing component, and the other end of the elastic component abuts against the end portion, far away from the first sealing component, of the first cavity.
Furthermore, be equipped with the notes material hole on the first sealed tube, annotate the inside intercommunication of material hole and second cavity for pour into the filler into in the second cavity.
Further, the material injection hole is of a pipeline structure;
the material injection hole is provided with a through hole penetrating through the pipeline along the radial direction of the pipeline;
the diameter of the through hole is larger than or equal to that of the material injection hole, and a plugging component is arranged in the through hole to plug the material injection hole.
Further, the polish rod sealer further comprises a second sealing device arranged above the first sealing device;
the second sealing device comprises a second sealing pipe, a second sealing component and a gland;
the second sealing component is arranged inside the second sealing pipe;
the gland is arranged above the second sealing pipe and is abutted against the second sealing part.
Furthermore, the second sealing pipe comprises a first sealing pipe section, a first stopping pipe section and a first connecting pipe section which are sequentially arranged from top to bottom, and the inner diameter of the first stopping pipe section is smaller than that of the first sealing pipe section;
the second sealing part is arranged in the first sealing pipe section and is tightly attached to the inner wall of the first sealing pipe section;
the gland is arranged above the first sealing pipe section and is abutted against the second sealing part;
the first connecting pipe section is sleeved on the periphery of the first sealing pipe.
Further, the polish rod sealer further comprises a third sealing device arranged below the first sealing device;
the third sealing device comprises a third sealing component and a third sealing pipe;
the third sealing component comprises a sealing packing which is of a step-shaped structure and is arranged inside the third sealing pipe;
the inner peripheral wall of the third sealing pipe is matched with the shape of the sealing packing.
Furthermore, the sealing packing comprises at least two split sealing rings, and the split sealing rings are sequentially overlapped from top to bottom to form a step-shaped structure.
Furthermore, at least one sealing groove is formed in the side wall of the bottom of the third sealing pipe;
and a sealing structure is arranged in the sealing groove.
Further, a mounting hole is radially formed in the side wall of the gland;
and an adjusting handle for adjusting the tightness degree of the gland is arranged in the mounting hole.
Further, the first sealing part comprises at least one sealing gasket, and the sealing gasket is an O-shaped sealing gasket and/or a conical sealing gasket;
the elastic component is a pressure spring.
After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:
the utility model provides a polished rod sealer is through being equipped with elastomeric element in the first cavity of first sealed tube to add the seal packing in another cavity, rely on elastomeric element's elasticity can realize automatic compensation to the seal packing, need not frequently annotate the material in polished rod operating cycle, can guarantee the continuous normal safety in production of oil well.
The utility model provides a polish rod sealing device, through the sealed packing that adopts the step type structure, at polished rod operation in-process, can prevent that sealed packing root from being taken over by polished rod up-and-down motion, realize extension seal structure's life-span, reduce the number of times of changing the operation.
The utility model provides a polished rod sealer sets up multilayer sealing device through the periphery at the polished rod, and prevention gas-liquid that can be better leaks, reduces the environmental protection and pollutes, reduces the maintenance cost, reduces the shut-in time, increases the output of crude oil to reach the purpose that improves economic benefits.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural view of the polish rod sealer of the present invention.
In the figure: 100. a polish rod sealer; 1. a polish rod; 10. a first seal tube; 101. a second chamber; 102. a first chamber; 11. a first seal member; 111. a conical sealing gasket; 112. an O-shaped sealing gasket; 13. an elastic member; 14. a material injection hole; 15. a plugging member; 20. a second sealed tube; 201. a first seal tube segment; 202. A first stopper tube section; 203. a first connecting pipe section; 21. a second seal member; 22. a gland; 30. a third seal tube; 31. a third seal member; 32. a sealing structure; 40. and (4) a joint.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components may be mechanically connected, directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present invention provides a polish rod sealer, which comprises a first sealing device, wherein the first sealing device comprises a first sealing tube 10, a first sealing part 11 and an elastic part 13; the first sealing member 11 is movably installed in the first sealing pipe 10, and divides the inner space of the first sealing pipe 10 into a first chamber 102 and a second chamber 101; the elastic member 13 is installed in the first chamber 102, one end of the elastic member is connected to the first sealing member 11, and the other end of the elastic member abuts against an end portion of the first chamber 102 away from the first sealing member 11.
By arranging the elastic component 13 in the first chamber 102 of the first sealing pipe 10 and adding the sealing filler in the other chamber, the sealing filler can be automatically compensated by virtue of the elasticity of the elastic component 13, and the continuous and normal safe production of an oil well can be ensured without frequently injecting the material in the operation period of the polished rod 1.
In some embodiments, the first sealing tube 10 is provided with an injection hole 14, and the injection hole 14 is communicated with the inside of the second chamber 101 for injecting the filler into the second chamber 101.
The filling of the second chamber 101 is performed by means of a filling gun adapted to the filling opening 14, and as the filling increases, the first sealing member 11 continuously presses the elastic member 13, so that the elastic member 13 is under tension. By means of the injected packing seal, a radial sealing effect is produced against the surface of the stem 1 by virtue of its pressure.
The filler comprises a particle filler or a grease filler, and the shape of the filler is a regular structure or an irregular structure. The sealing filler can be graphite fiber, asbestos fabric, engineering plastics or rubber scraps and the like.
Preferably, the first chamber 102 is located at a lower portion of the second chamber 101.
In some embodiments, the injection holes 14 are a pipe structure; the material injection hole 14 is provided with a through hole penetrating through the pipeline along the radial direction of the pipeline; the diameter of the through hole is larger than or equal to that of the material injection hole 14, and a plugging component 15 is arranged in the through hole to plug the material injection hole 14.
Specifically, the plugging member 15 includes a plugging bolt, a nut, and a cotter pin.
One end of the plugging bolt is inserted into the through hole and is screwed tightly through the nut, and the other end of the plugging bolt is connected with the cotter pin. In the process of injecting the material, the plugging bolt is drawn out of the through hole, after the material injection is completed, the plugging bolt is rotated through the cotter pin, and after the material injection hole 14 is closed, the plugging bolt is screwed through the nut so as to prevent the leakage of the sealing filler.
Preferably, the mating surface between the injection hole 14 and the plugging bolt is a cylindrical or conical plane.
In some embodiments, the polish rod sealer 100 further comprises a second sealing device disposed above the first sealing device; the second sealing device comprises a second sealing pipe 20, a second sealing part 21 and a gland 22; the second sealing member 21 is disposed inside the second sealing tube 20; the gland 22 is mounted above the second seal pipe 20 and abuts against the second seal member 21.
When the gland 22 moves downward, a force is applied to the second sealing member 21 to compress the second sealing member 21, so that the second sealing member 21 produces a radial sealing effect on the surface of the polish rod 1.
Preferably, the second sealing part 21 employs at least one O-ring gasket 112.
In some embodiments, at least one sleeve with two ends open is connected to the outer periphery of the second sealing tube 20, one end of the sleeve is open and connected to the outer peripheral wall of the second sealing tube 20, and the other end of the sleeve is open and arranged to extend in a direction away from the second sealing tube 20 along the radial direction of the second sealing tube 20.
Preferably, the sleeve is uniformly welded to the outer circumference of the second sealing tube 20.
In some embodiments, the second sealing pipe 20 includes a first sealing pipe section 201, a first stopper pipe section 202 and a first connecting pipe section 203 which are arranged in sequence from top to bottom, and the inner diameter of the first stopper pipe section 202 is smaller than that of the first sealing pipe section 201; the second sealing part 21 is arranged in the first sealing pipe section 201 and is tightly attached to the inner wall of the first sealing pipe section 201; the gland 22 is arranged above the first sealing pipe section 201 and is abutted against the second sealing part 21; the first connecting pipe section 203 is sleeved on the periphery of the first sealing pipe 10.
By providing the first stopper pipe section 202 with an inner diameter smaller than that of the first sealing pipe section 201, the first stopper pipe section 202 is directly sealed on the outer periphery of the polish rod 1, and the first stopper section can prevent the sealing filler in the first sealing pipe 10 from being brought outside the polish rod sealer 100 during the operation of the polish rod 1.
In some embodiments, the polish rod sealer 100 further comprises a third sealing device disposed below the first sealing device; the third sealing means comprises a third sealing member 31 and a third sealing tube 30; the third sealing component 31 comprises a sealing packing which is of a step-shaped structure and is arranged inside the third sealing pipe 30; the inner peripheral wall of the third seal pipe 30 is matched with the shape of the seal packing.
The utility model provides a polish rod sealing device 100, through the sealed packing that adopts the step structure, at polish rod 1 operation in-process, can prevent that sealed packing root from being taken over by polish rod 1 up-and-down reciprocating motion, realize prolonging seal structure 32's life-span, reduce the number of times of changing the operation.
Specifically, the sealing packing comprises at least two split sealing rings, and the split sealing rings are sequentially overlapped from top to bottom to form a step-shaped structure.
Preferably, the diameters of the split sealing rings increase from top to bottom.
More preferably, each split sealing ring adopts a three-split structure, and the openings of the sealing rings of each layer are uniformly distributed and staggered with each other.
Through setting up each split type sealing ring diameter from the top down and increase in proper order, can constitute the sealed packing of step type when it superposes in proper order layering, when polished rod 1 was up-and-down reciprocating motion, can prevent to produce the aversion from top to bottom with sealed packing, the quality of influence sealed.
In some embodiments, at least one sealing groove is formed on a bottom sidewall of the third sealing tube 30; a sealing structure 32 is arranged in the sealing groove.
Preferably, the sealing structure 32 is a sealing ring; the number of the sealing grooves is 1-4.
By installing the seal ring in the seal groove, it is possible to prevent a gap from being generated between the contact surfaces of the third seal pipe 30 and other components, which may cause gas and liquid to leak from the gap.
In some embodiments, the side wall of the gland 22 is radially provided with a mounting hole;
an adjusting handle for adjusting the tightness degree of the gland 22 is arranged in the mounting hole.
Specifically, the first sealing part 11 comprises at least one sealing gasket, which is an O-ring sealing gasket 112 and/or a conical sealing gasket 111;
the elastic component 13 is a pressure spring.
In some embodiments, the bottom of the third sealing device of the polished rod sealer 100 of the present invention is provided with an offset device, which includes a joint 40, one end of which is arranged at the wellhead, and the other end of which is connected with the third sealer;
the contact surface of the joint 40 and the third sealing device is a plane or a slope.
The deviation adjusting device further comprises an end cap, the end cap is provided with a central hole, a third sealing device part is inserted into the top of the central hole of the end cap, and a joint 40 part is inserted into the bottom of the central hole of the end cap;
the outer peripheral wall of the end cap is provided with at least one rotating rod which is uniformly arranged on the outer peripheral wall of the end cap at intervals;
the rotating rod is uniformly arranged outside the end cap, one end of the third-stage sealing tube penetrates through the central hole of the end cap, and the other end of the third-stage sealing tube is welded with the first sealing tube 10 into a whole.
Specifically, the end cap may be welded or threaded to the swivel rod.
Adopt above-mentioned technical scheme, the utility model discloses a theory of operation and working process as follows:
the coupling 40 is first installed on the wellhead, then the third seal tube 30 is installed on the coupling 40, and the split seal ring is installed in the third seal tube 30 so as to be wrapped around the circumference of the polish rod 1, while the seal ring is installed in the seal groove. The polish rod 1 is then passed through a third sealing means and sub 40 in sequence and installed on the wellhead. And then, the first sealing pipe 10 is arranged above the third sealing pipe 30, the elastic part 13 is placed into the first sealing pipe, and then the O-shaped sealing washer 112 and the conical sealing washer 111 are sequentially arranged, wherein the conical head of the conical sealing washer 111 faces upwards. Then the plugging bolt is opened again, after a proper amount of sealing filler is injected through the material injection hole 14 by using a material injection gun, the conical sealing washer 111 is installed, and the conical head of the conical sealing washer faces downwards. Then, a second sealing tube 20 is installed above the first sealing means to press the tapered sealing gasket 111. At least one O-ring gasket 112 is then installed into the second gland 20 and compressed by the gland 22. And finally, opening the plugging bolt, injecting a proper amount of sealing filler through the material injection hole 14 by using a material injection gun, compressing the elastic part 13 again, and closing the material injection hole to finally complete the sealing of the polished rod.
The utility model provides a polished rod sealing device 100 sets up multilayer sealing device through the periphery at polished rod 1, and prevention gas-liquid that can be better leaks, reduces the environmental protection and pollutes, reduces the maintenance cost, reduces the shut-in time, increases the output of crude oil to reach the purpose that improves economic benefits.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (10)
1. A polish rod sealer comprising a first sealing device, characterized in that:
the first sealing device comprises a first sealing pipe, a first sealing component and an elastic component;
the first sealing part is movably arranged in the first sealing pipe and divides the inner space of the first sealing pipe into a first chamber and a second chamber;
the elastic component is installed in the first cavity, one end of the elastic component is connected with the first sealing component, and the other end of the elastic component abuts against the end portion, far away from the first sealing component, of the first cavity.
2. The polish rod sealer of claim 1, wherein:
and the first sealing pipe is provided with a material injection hole, and the material injection hole is communicated with the inside of the second chamber and is used for injecting filler into the second chamber.
3. The polish rod sealer of claim 2, wherein:
the material injection holes are of pipeline structures;
the material injection hole is provided with a through hole penetrating through the pipeline along the radial direction of the pipeline;
the diameter of the through hole is larger than or equal to that of the material injection hole, and a plugging component is arranged in the through hole to plug the material injection hole.
4. The polish rod sealer of any one of claims 1 to 3, wherein:
the polished rod sealer also comprises a second sealing device which is arranged above the first sealing device;
the second sealing device comprises a second sealing pipe, a second sealing component and a gland;
the second sealing component is arranged inside the second sealing pipe;
the gland is arranged above the second sealing pipe and is abutted against the second sealing part.
5. The polish rod sealer of claim 4, wherein:
the second sealing pipe comprises a first sealing pipe section, a first stopping pipe section and a first connecting pipe section which are sequentially arranged from top to bottom, and the inner diameter of the first stopping pipe section is smaller than that of the first sealing pipe section;
the second sealing part is arranged in the first sealing pipe section and is tightly attached to the inner wall of the first sealing pipe section;
the gland is arranged above the first sealing pipe section and is abutted against the second sealing part;
the first connecting pipe section is sleeved on the periphery of the first sealing pipe.
6. The polish rod sealer of claim 5, wherein:
the polished rod sealer also comprises a third sealing device which is arranged below the first sealing device;
the third sealing device comprises a third sealing component and a third sealing pipe;
the third sealing component comprises a sealing packing which is of a step-shaped structure and is arranged inside the third sealing pipe;
the inner peripheral wall of the third sealing pipe is matched with the shape of the sealing packing.
7. The polish rod sealer of claim 6, wherein:
the sealing packing comprises at least two split sealing rings, and the split sealing rings are sequentially overlapped from top to bottom to form a step-shaped structure.
8. The polish rod sealer of claim 6, wherein:
at least one sealing groove is formed in the side wall of the bottom of the third sealing pipe;
and a sealing structure is arranged in the sealing groove.
9. The polish rod sealer of claim 5, wherein:
the side wall of the gland is radially provided with a mounting hole;
and an adjusting handle for adjusting the tightness degree of the gland is arranged in the mounting hole.
10. The polish rod sealer of claim 1, wherein:
the first sealing part comprises at least one sealing gasket, and the sealing gasket is an O-shaped sealing gasket and/or a conical sealing gasket;
the elastic component is a pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120380620.8U CN214836236U (en) | 2021-02-19 | 2021-02-19 | Polish rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120380620.8U CN214836236U (en) | 2021-02-19 | 2021-02-19 | Polish rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214836236U true CN214836236U (en) | 2021-11-23 |
Family
ID=78883779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120380620.8U Expired - Fee Related CN214836236U (en) | 2021-02-19 | 2021-02-19 | Polish rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214836236U (en) |
-
2021
- 2021-02-19 CN CN202120380620.8U patent/CN214836236U/en not_active Expired - Fee Related
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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: 20211123 |