CN111561444A - Oil pump plunger and oil pump - Google Patents
Oil pump plunger and oil pump Download PDFInfo
- Publication number
- CN111561444A CN111561444A CN202010390289.8A CN202010390289A CN111561444A CN 111561444 A CN111561444 A CN 111561444A CN 202010390289 A CN202010390289 A CN 202010390289A CN 111561444 A CN111561444 A CN 111561444A
- Authority
- CN
- China
- Prior art keywords
- plunger
- well pump
- oil well
- oil
- damping
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 claims abstract description 62
- 239000003129 oil well Substances 0.000 claims abstract description 53
- 230000035939 shock Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 19
- 238000005086 pumping Methods 0.000 description 6
- 230000002028 premature Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Abstract
The invention discloses an oil well pump plunger and an oil well pump, and belongs to the technical field of oil extraction in oil fields. Under the action of the damping vibration attenuation pad, the oil well pump can achieve an ideal vibration attenuation effect, abrasion of a valve ball and a valve seat of the oil well pump is reduced, an oil pipe is protected, the service life of the oil well pump can be prolonged, and accidents can be prevented.
Description
Technical Field
The invention belongs to the technical field of oil extraction in oil fields, is applied to an oil well oil pumping whole barrel pump, and particularly relates to an oil well pump plunger and an oil well pump.
Background
At present, a whole barrel pump is generally adopted for oil extraction of an oil field pumping well, a plunger piston can impact a liquid level at a high speed when descending, so that a fluid load is suddenly transferred to an oil pipe from a rod string, and strong shock waves are generated at the same time to damage the whole oil pumping system. Particularly for oil wells with insufficient liquid supply, the liquid impact effect is more obvious. The number of liquid impact occurring every day is 7200 for an oil well with the stroke number of 5, and continuous liquid impact can cause premature fatigue failure of a sucker rod string, premature damage of a valve ball and a valve seat of an oil well pump, accelerated abrasion of a plunger and a pump barrel, and sudden stretching of an oil pipe under the action of liquid impact, so that threads of the oil pipe are loosened, and leakage or breaking failure occurs.
Disclosure of Invention
The invention provides an oil pump plunger and an oil well pump, and aims to solve the problems that premature fatigue failure of a sucker rod string, premature damage to a valve ball and a valve seat of the oil well pump, accelerated abrasion of the plunger and a pump barrel, sudden stretching of an oil pipe under the action of liquid impact, loosening of threads of the oil pipe, and leakage or breaking failure can be caused due to continuous liquid impact.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the plunger of the oil well pump comprises a plunger, and the end part of the plunger is provided with a damping vibration attenuation pad.
The damping vibration attenuation pad is fixedly or detachably connected to the end part of the plunger.
The diameter of the damping vibration attenuation pad is the same as that of the joint of the end part of the plunger.
The middle part of the damping vibration attenuation pad is provided with a cavity.
The cavity in the middle of the damping vibration attenuation pad is internally provided with a partition which divides the cavity in the middle of the damping vibration attenuation pad into a plurality of sub-cavities.
And the cavity in the middle of the damping vibration attenuation pad is filled with gas.
Each sub-cavity is hexagonal prism in shape, and the cavity is filled with inert gas.
The plunger is made of steel or alloy materials, and the damping vibration attenuation pad is made of oil-resistant rubber materials.
The end part of the damping vibration attenuation pad is provided with a thickening layer, and the thickening layer and the damping vibration attenuation pad are integrated.
An oil well pump, which applies any one of the oil well pump plungers to the oil well pump.
The invention has the advantages that under the action of the damping vibration attenuation pad, the oil well pump can achieve an ideal vibration attenuation effect, the abrasion of the valve ball and the valve seat of the oil well pump is reduced, the oil pipe is protected, the service life of the oil well pump can be prolonged, and accidents can be prevented.
Drawings
FIG. 1 is a schematic cross-sectional view of a damping pad of an embodiment of an oil well pump plunger of the present invention;
fig. 2 is a schematic diagram of the overall structure of the oil pump of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to several specific embodiments.
Example 1
Referring to fig. 1, a schematic cross-sectional view of a damping pad 1 of an oil well pump plunger according to an embodiment of the present invention is shown, the oil well pump plunger includes a plunger, and the end of the plunger has the damping pad 1.
In the embodiment, particularly for an oil well with insufficient liquid supply in the prior art, the plunger of the oil pumping unit can impact the liquid level at a high speed in a descending mode, so that the fluid load is suddenly transferred to an oil pipe from a rod column, and meanwhile, strong shock waves are generated, and the whole oil pumping system is damaged, the damping vibration attenuation pad 1 is added at the end part of the plunger to deal with the liquid impact phenomenon, due to the fact that the damping vibration attenuation pad 1 is added, after the plunger impacts the liquid level, the damping vibration attenuation pad 1 is firstly contacted with the liquid level, the energy of the liquid impact is consumed in advance through the damping vibration attenuation principle, and the impact influence of the liquid impact shock waves on the whole oil pumping unit is reduced.
Further, the damping cushion 1 may be a damping cushion having an elastic member or a damping material having elasticity, such as rubber or rubber products.
Example 2
Further, in another embodiment of the oil well pump plunger of the present invention, the damping pad 1 is fixedly or detachably attached to the end of the plunger.
In the above embodiment, particularly in an oil well with insufficient liquid supply, the part of the plunger which is firstly contacted with the liquid surface is the end part of the plunger, so that the damping vibration-damping pad 1 is arranged at the position of the outward extending part of the end part of the plunger, the damping vibration-damping pad 1 can be firstly contacted with the liquid surface to deal with shock waves generated by a liquid-hammering phenomenon, and the arrangement of the embodiment can increase the efficiency of the damping vibration-damping pad 1 to deal with the liquid-hammering phenomenon.
Example 3
Further, in another embodiment of the oil well pump plunger of the present invention, the diameter of the damping vibration-damping pad 1 is the same as the diameter of the joint of the plunger ends.
In the above embodiment, the diameter of the damping vibration-damping pad 1 is the same as the diameter of the joint of the plunger end, which can achieve the stabilizing effect.
Example 4
Further, in another embodiment of the oil well pump plunger of the present invention, the damping pad 1 has a cavity in the middle.
In the above embodiment, the arrangement of the cavity can effectively absorb the shock wave.
Example 5
Furthermore, in another embodiment of the oil well pump plunger of the present invention, the cavity in the middle of the damping vibration attenuation pad 1 is provided with a partition, and the partition divides the cavity in the middle of the damping vibration attenuation pad 1 into a plurality of sub-cavities.
In the above embodiment, the damping pad 1 is formed by a plurality of sub-cavities, so that the damping efficiency of the damping pad 1 can be increased, and compared with a single cavity, the damping effect of the damping pad is better.
Example 6
Further, in another embodiment of the oil well pump plunger of the present invention, the cavity in the middle of the damping vibration-damping pad 1 is filled with gas.
In the above embodiment, the cavity in the middle of the damping vibration attenuation pad 1 is filled with gas, so that the damping vibration attenuation pad 1 is more stable in a normal state.
Example 7
Further, in another embodiment of the plunger of the oil well pump of the present invention, the shape of each sub-cavity is hexagonal prism, and the cavity is filled with inert gas.
In the above embodiment, the cavity is filled with the inert gas and the hexagonal prisms are distributed in the honeycomb shape, so that the service life of the hexagonal prisms can be prolonged.
Example 8
Further, in another embodiment of the plunger of the oil well pump of the present invention, the damping vibration-damping pad 1 has multiple layers.
In the embodiment, the multilayer hexagonal prism can absorb shock waves generated by the plunger and the liquid level in the oil well pump layer by layer, so that the shock waves are absorbed more effectively.
Example 9
Further, in another embodiment of the oil well pump plunger of the present invention, the plunger is made of steel or alloy material, and the damping pad 1 is made of oil-resistant rubber material.
In the above embodiment, the plunger is made of steel or alloy material, so that the service life is prolonged, and the damping vibration attenuation pad 1 is made of oil-resistant rubber material and is used for absorbing shock wave energy.
Example 10
Further, in another embodiment of the plunger of the oil well pump of the present invention, the end of the damping pad 1 has a thickened layer, and the thickened layer is integrated with the damping pad 1.
In the above embodiment, the end of the damping vibration-damping pad 1 has the thickened layer, which can increase the service life of the damping vibration-damping pad 1.
Example 11
Referring to fig. 2, the plunger of the oil pump according to any one of embodiments 1 to 7 is applied to an oil pump.
In the above embodiment, the oil well pump using the plunger of the oil well pump with the damping vibration pad 1 can greatly prolong the service life of the oil well pump, and in fig. 2, the structure of the oil well pump is a schematic diagram of the structure of the prior art, and the schematic structure of the oil well pump comprises a valve cover 2, an oil well pump barrel 3, a traveling valve 4, a plunger 5, a damping vibration pad 6 and a fixed valve 7.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions related to "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. Oil-well pump plunger, including the plunger, its characterized in that:
the end of the plunger is provided with a damping vibration attenuation pad.
2. The oil well pump plunger of claim 1 wherein said dampening shock pad is fixedly or removably attached to said plunger end.
3. The oil well pump plunger of claim 1 wherein the damping pad has a diameter that is the same as the diameter of the plunger end connection.
4. The oil well pump plunger of claim 1 wherein said damping pad has a cavity in the middle.
5. The oil well pump plunger as claimed in claim 4, wherein the damping cushion has a partition in the middle cavity, and the partition divides the middle cavity into several sub-cavities.
6. The oil well pump plunger of claim 5 wherein the chamber in the middle of said damping pad is filled with a gas.
7. The plunger of oil well pump according to claim 6 wherein each sub-cavity is hexagonal prism shaped and filled with inert gas.
8. The oil well pump plunger of any one of claims 1-7 wherein said plunger is steel or alloy material and said dampening shoe is oil resistant rubber material.
9. The oil well pump plunger of any one of claims 1-8 wherein said dampening shoe has a thickened layer at an end thereof, said thickened layer being integral with said dampening shoe.
10. An oil well pump, characterized in that the oil well pump plunger according to any one of claims 1-7 is applied to an oil well pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390289.8A CN111561444A (en) | 2020-05-11 | 2020-05-11 | Oil pump plunger and oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390289.8A CN111561444A (en) | 2020-05-11 | 2020-05-11 | Oil pump plunger and oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111561444A true CN111561444A (en) | 2020-08-21 |
Family
ID=72074622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010390289.8A Pending CN111561444A (en) | 2020-05-11 | 2020-05-11 | Oil pump plunger and oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111561444A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832357A (en) * | 2010-05-24 | 2010-09-15 | 谭晓婧 | Single-side magneto rheological intelligent anti-vibration pad |
| CN207921200U (en) * | 2018-02-26 | 2018-09-28 | 安徽致信汽车科技有限公司 | A kind of plunger pump beam |
| CN108659282A (en) * | 2018-05-18 | 2018-10-16 | 青岛科技大学 | A kind of wide temperature zone high damping oil resistant yielding rubber composite material and preparation method |
| CN109204082A (en) * | 2017-06-29 | 2019-01-15 | 丁加艳 | A kind of agri-vehicle spring shock absorbing seat |
| CN110925189A (en) * | 2019-12-30 | 2020-03-27 | 中国石油天然气股份有限公司 | Double-air-cushion damping whole barrel pump and application method thereof |
| CN111059046A (en) * | 2019-12-30 | 2020-04-24 | 中国石油天然气股份有限公司 | Leather cup type damping pumping-assisting whole barrel pump and using method thereof |
| CN213298249U (en) * | 2020-05-11 | 2021-05-28 | 中国石油天然气股份有限公司 | Oil pump plunger |
-
2020
- 2020-05-11 CN CN202010390289.8A patent/CN111561444A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832357A (en) * | 2010-05-24 | 2010-09-15 | 谭晓婧 | Single-side magneto rheological intelligent anti-vibration pad |
| CN109204082A (en) * | 2017-06-29 | 2019-01-15 | 丁加艳 | A kind of agri-vehicle spring shock absorbing seat |
| CN207921200U (en) * | 2018-02-26 | 2018-09-28 | 安徽致信汽车科技有限公司 | A kind of plunger pump beam |
| CN108659282A (en) * | 2018-05-18 | 2018-10-16 | 青岛科技大学 | A kind of wide temperature zone high damping oil resistant yielding rubber composite material and preparation method |
| CN110925189A (en) * | 2019-12-30 | 2020-03-27 | 中国石油天然气股份有限公司 | Double-air-cushion damping whole barrel pump and application method thereof |
| CN111059046A (en) * | 2019-12-30 | 2020-04-24 | 中国石油天然气股份有限公司 | Leather cup type damping pumping-assisting whole barrel pump and using method thereof |
| CN213298249U (en) * | 2020-05-11 | 2021-05-28 | 中国石油天然气股份有限公司 | Oil pump plunger |
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