CN110578496B - Low-friction well head oil pumping device - Google Patents
Low-friction well head oil pumping device Download PDFInfo
- Publication number
- CN110578496B CN110578496B CN201910886359.6A CN201910886359A CN110578496B CN 110578496 B CN110578496 B CN 110578496B CN 201910886359 A CN201910886359 A CN 201910886359A CN 110578496 B CN110578496 B CN 110578496B
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- oil
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- limiting part
- oil pumping
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- 238000005086 pumping Methods 0.000 title claims abstract description 52
- 239000003921 oil Substances 0.000 claims abstract description 114
- 238000001125 extrusion Methods 0.000 claims abstract description 48
- 239000010779 crude oil Substances 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 239000004576 sand Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of oil exploitation equipment, and discloses a low-friction well mouth oil pumping device which comprises an oil pipe, wherein an oil pumping casing is movably sleeved on the oil pipe, an oil pumping rod is movably sleeved on the oil pumping casing, and the oil pumping rod is hinged with an extrusion piece. This well head oil jack of low friction, it draws and extrudees through the elastic component simulation heart and orders about crude oil flow, and the elastic component need not contact with the pipe wall, the power consumption that the friction produced has been reduced, also improved life because frictional force reduces simultaneously, secondly, because the elastic component does not contact with the pipe wall, and because the elastic component is continuous flexible, constantly change with the space of pipe wall, be difficult to the card sand, consequently, the sand grain that contains in the oil can not influence the normal operating of elastic component, and furthermore, this in-process does not produce frictional force hardly, also can not produce the consume because of frictional force, the life of device has been improved, the maintenance cost when having reduced the use.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a low-friction wellhead oil pumping device.
Background
Referring to fig. 1, the pumping unit drives the piston connected with the sucker rod in the tubular column to reciprocate, so as to lift the pump cylinder and crude oil at the bottom of the well to the ground, and meanwhile, in order to prevent crude oil leakage, a wellhead is usually provided with a packing box.
Furthermore, some oil wells can carry sand when oil is produced, and the sand can be clamped between the pipe column and the piston column, so that the structure is not suitable for oil wells easy to produce sand, and the application range is reduced.
Furthermore, the service life of the oil pumping unit is short due to continuous friction between the piston and the pipe wall in the moving process of the piston, and after the oil pumping unit is used for a long time, the clearance between the piston column and the pipe wall is large, so that the oil pumping function is difficult to realize, the oil pumping unit needs to be replaced periodically, and the work load is increased.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the technical scheme of the wellhead oil pumping device with low friction force, which has the advantages of small working friction and small abrasion and solves the problems provided by the background technology.
The invention provides the following technical scheme: a low-friction well mouth oil pumping device comprises an oil pipe, wherein an oil pumping sleeve is sleeved on the oil pipe in a movable mode, an oil pumping rod is sleeved on the oil pumping sleeve in a movable mode, the oil pumping rod is hinged to an extrusion piece, a limiting piece is fixedly mounted on the inner wall of the oil pumping sleeve, an elastic piece is arranged between the limiting piece and the extrusion piece, one-way valves for one-way outflow and one-way inflow are arranged on the surface of the elastic piece, the extrusion piece comprises an upper extrusion plate, a connecting column and a lower extrusion plate, the connecting column penetrates through the limiting piece and is movably connected with the limiting piece, the upper extrusion plate and the lower extrusion plate are fixedly connected to the two ends of the connecting column respectively, elastic pieces are arranged between the upper extrusion plate and the limiting piece and between the lower extrusion plate and the limiting piece, the limiting piece is arranged at the joint of the oil pipe and the oil pumping sleeve, the elastic piece below is positioned in the oil pipe, and crude oil is unidirectionally sucked from the oil pipe through the one-way valves, the elastic part below injects crude oil to the elastic part above through the check valve in a one-way, and the elastic part above is communicated with the oil taking pipe in a one-way through the check valve.
Preferably, the lateral wall of going up stripper plate and stripper plate down all movable mounting have the locating wheel, goes up stripper plate, spliced pole and stripper plate combined action down, plays the effect of centering, guarantees that the motion of extruded article is vertical, oil pipe and oil pumping sleeve's corresponding position is equipped with the spacing groove that matches with the locating wheel, avoids the extruded article to take place radial rotation and makes the elastic component hinge and put a strength.
Preferably, the side wall of the elastic part is provided with support rings at equal intervals.
A low-friction well mouth oil pumping device comprises an oil pipe, wherein an oil pumping sleeve is movably sleeved on the oil pipe, an oil pumping rod is movably sleeved on the oil pumping sleeve, the oil pumping rod is hinged with an extrusion piece, a limiting piece is fixedly arranged on the inner wall of the oil pumping sleeve, an elastic piece is arranged between the limiting piece and the extrusion piece, a one-way valve for one-way outflow and one-way inflow is arranged on the surface of the elastic piece, the extrusion piece comprises an upper extrusion plate, a connecting column and a lower extrusion plate, the connecting column penetrates through the limiting piece and is movably connected with the limiting piece, the two ends of the connecting column are respectively and fixedly connected with the upper extrusion plate and the lower extrusion plate, elastic pieces are respectively arranged between the upper extrusion plate and the limiting piece and between the lower extrusion plate and the limiting piece, an oil outlet cavity communicated with an oil taking pipe is arranged in the middle of the limiting piece, and the oil outlet cavity of the limiting piece is communicated with the elastic pieces at the two ends, oil inlets are formed between the two elastic pieces and the connecting column, an oil inlet channel is formed in the middle of the connecting column, the connecting column is communicated with an oil pipe through the oil inlet channel, and one-way inflow check valves are arranged at the lower ends of the two oil inlets of the connecting column.
The invention has the following beneficial effects:
1. this well head oil jack of low frictional force draws and extrudees through the simulation heart and orders about crude oil flow, and the elastic component need not contact with the pipe wall, and when the effort has the angle of inclination, friction with the pipe wall is less, has reduced the power consumption that the friction produced, has also improved life because frictional force reduces simultaneously.
2. According to the low-friction wellhead oil pumping device, the elastic piece is not in contact with the pipe wall, and the elastic piece stretches continuously, so that the gap between the elastic piece and the pipe wall changes continuously and sand is difficult to block, therefore, sand grains contained in oil cannot influence the normal operation of the elastic piece, and the application range of the device is expanded.
3. This well head oil jack of low friction draws and extrudes crude oil through the elastic component, and this in-process produces frictional force hardly, also can not produce the consume because of frictional force, has improved the life of device, has reduced the maintenance cost when using.
Drawings
FIG. 1 is a schematic diagram of a conventional wellhead pumping unit;
FIG. 2 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 3 is a schematic view of an extrusion of the present invention;
FIG. 4 is a schematic view of the elastic member of the present invention;
fig. 5 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1. an oil pipe; 2. an oil pumping casing pipe; 3. a sucker rod; 4. an extrusion; 41. an upper stripper plate; 42. connecting columns; 43. a lower stripper plate; 5. a limiting member; 6. an elastic member; 7. and (6) taking an oil pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 2-5, a low friction well head pumping unit comprises an oil pipe 1, the oil pipe 1 is movably sleeved with a pumping casing 2, the pumping casing 2 is movably sleeved with a pumping rod 3, the pumping rod 3 is hinged with an extrusion member 4, a limiting member 5 for limiting the movement of the elastic member 6 is fixedly installed on the inner wall of the pumping casing 2, the elastic member 6 is arranged between the limiting member 5 and the extrusion member 4, the surface of the elastic member 6 is provided with a one-way valve for one-way outflow and one-way inflow, the pumping rod 3 drives the extrusion member 4 to reciprocate, and further drives the elastic member 6 to ceaselessly shrink and expand, and continuously sucks and extrudes crude oil, and drives the crude oil to flow like the heart beating.
Wherein, extruded article 4 is including last stripper plate 41, spliced pole 42 and stripper plate 43 down, spliced pole 42 runs through locating part 5 and locating part 5 swing joint, stripper plate 41 and lower stripper plate 43 on the both ends difference fixedly connected with of spliced pole 42, it all is equipped with elastic component 6 to go up between stripper plate 41 and the locating part 5 and between lower stripper plate 43 and the locating part 5, spliced pole 42 carries out up-and-down reciprocating motion under sucker rod 3's drive, compress and expand elastic component 6 simultaneously when its upward movement and downstream, and the work efficiency is improved.
Wherein, the equal movable mounting of lateral wall of going up stripper plate 41 and stripper plate 43 has the locating wheel, goes up stripper plate 41, spliced pole 42 and stripper plate 43 combined action down, plays the effect to the center sleeve, guarantees that extruded article 4's motion is vertical, and oil pipe 1 and the corresponding position of oil pumping sleeve pipe 2 are equipped with the spacing groove that matches with the locating wheel, avoid extruded article 4 to take place radial rotation and make elastic component 6 hinge and apply force.
Wherein the elastic member 6 installed between the extrusion member 4 and the limiting member 5 is a spring, and the acting force of the spring and the gravity ensure that the extrusion member 4 overcomes the resistance of the downward movement.
Wherein, the lateral wall equidistance of elastic component 6 is equipped with the support ring, reduces the collapse of elastic component 6 lateral wall, guarantees the oil absorption ability of elastic component 6.
Wherein, locating part 5 is established in the junction of oil pipe 1 and oil pumping sleeve pipe 2, and the elastic component 6 of below is located oil pipe 1, and one-way absorption crude oil in oil pipe 1 through the check valve, and the elastic component 6 of below injects crude oil through the one-way elastic component 6 of check valve one-way top into, and the elastic component 6 of top gets oil pipe 7 through the one-way intercommunication of check valve, and two elastic components 6 combined action are in the oil absorption and the process of producing oil, improve single oil absorption and the ability of producing oil.
Example two
The second embodiment is basically the same as the first embodiment, and the difference lies in that the middle part of the limiting part 5 is provided with an oil outlet cavity communicated with the oil taking pipe 7, the oil outlet cavity of the limiting part 5 is communicated with the elastic parts 6 at two ends, oil inlets are arranged between the two elastic parts 6 and the connecting columns 42, the middle part of the connecting column 42 is provided with an oil inlet channel, the connecting column 42 is communicated with the oil pipe 1 through the oil inlet channel, the lower ends of the oil inlets of the two connecting columns 42 are provided with one-way valves provided with one-way inflow, so that the two elastic parts 6 absorb and discharge oil in sequence, and the oil outlet efficiency and stability are improved.
The working principle of the invention is as follows:
in the first embodiment, the sucker rod 3 moves upwards, the lower elastic part 6 has a reduced volume under the pressure of the lower extrusion plate 43, the crude oil inside the sucker rod is pressed into the upper elastic part 6, meanwhile, the upper elastic part 6 has an increased volume under the pulling of the upper extrusion plate 41, suction is generated, the crude oil in the lower elastic part 6 is sucked, when the sucker rod 3 moves downwards, the volume of the upper elastic part 6 is reduced, the crude oil is extruded out through the oil taking pipe 7 and discharged, the volume of the lower elastic part 6 is increased, and the crude oil in the oil taking pipe 1 is sucked.
In the second embodiment, the sucker rod 3 moves upward, the elastic member 6 below is under the pressure of the lower extrusion plate 43, the volume is reduced, the internal crude oil is pressed into the limiting member 5 above and is discharged through the oil taking pipe 7, meanwhile, the elastic member 6 above is pulled by the upper extrusion plate 41, the volume is increased, suction force is generated, the crude oil in the oil pipe 1 is sucked through the limiting member 5, when the sucker rod 3 moves downward, the volume of the elastic member 6 above is reduced, the crude oil is squeezed into the limiting member 5 and is discharged through the oil taking pipe 7, the volume of the elastic member 6 below is increased, and the crude oil in the oil pipe 1 is sucked through the limiting member 5.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a well head oil pumping device of low friction, includes oil pipe (1), oil pipe (1) activity has cup jointed oil pumping sleeve pipe (2), oil pumping sleeve pipe (2) activity has cup jointed sucker rod (3), its characterized in that: the sucker rod (3) is hinged with an extrusion part (4), the inner wall of the oil pumping casing pipe (2) is fixedly provided with a limiting part (5), an elastic part (6) is arranged between the limiting part (5) and the extrusion part (4), the surface of the elastic part (6) is provided with a one-way valve for one-way outflow and one-way inflow, the extrusion part (4) comprises an upper extrusion plate (41), a connecting column (42) and a lower extrusion plate (43), the connecting column (42) penetrates through the limiting part (5) and the limiting part (5) to be movably connected, the two ends of the connecting column (42) are respectively fixedly connected with the upper extrusion plate (41) and the lower extrusion plate (43), the elastic part (6) is arranged between the upper extrusion plate (41) and the limiting part (5) and between the lower extrusion plate (43) and the limiting part (5), the limiting part (5) is arranged at the joint of the oil pipe (1) and the oil pumping casing pipe (2), below elastic component (6) are located oil pipe (1), and through one-way absorption crude oil in check valve follow oil pipe (1), below elastic component (6) inject crude oil through one-way elastic component (6) to the top of check valve, the top elastic component (6) get oil pipe (7) through the one-way intercommunication of check valve.
2. The low friction well head pumping unit of claim 1, wherein: go up the equal movable mounting of lateral wall of stripper plate (41) and stripper plate (43) down and have the locating wheel, go up stripper plate (41), spliced pole (42) and stripper plate (43) combined action down, play the effect of centering, guarantee that the motion of extruded article (4) is vertical, the corresponding position of oil pipe (1) and oil pumping sleeve pipe (2) is equipped with the spacing groove that matches with the locating wheel, avoids extruded article (4) to take place radial rotation and makes elastic component (6) hinge and do all can.
3. The low friction well head pumping unit of claim 1, wherein: the side wall of the elastic piece (6) is equidistantly provided with a support ring.
4. The utility model provides a well head oil pumping device of low friction, includes oil pipe (1), oil pipe (1) activity has cup jointed oil pumping sleeve pipe (2), oil pumping sleeve pipe (2) activity has cup jointed sucker rod (3), its characterized in that: the sucker rod (3) is hinged with an extrusion part (4), the inner wall of the oil pumping casing pipe (2) is fixedly provided with a limiting part (5), an elastic part (6) is arranged between the limiting part (5) and the extrusion part (4), the surface of the elastic part (6) is provided with a one-way valve for one-way outflow and one-way inflow, the extrusion part (4) comprises an upper extrusion plate (41), a connecting column (42) and a lower extrusion plate (43), the connecting column (42) penetrates through the limiting part (5) and the limiting part (5) to be movably connected, the two ends of the connecting column (42) are respectively fixedly connected with the upper extrusion plate (41) and the lower extrusion plate (43), the elastic part (6) is arranged between the upper extrusion plate (41) and the limiting part (5) and between the lower extrusion plate (43) and the limiting part (5), the middle part of the limiting part (5) is provided with an oil outlet cavity communicated with an oil taking pipe (7), the oil outlet cavity of the limiting part (5) is communicated with the elastic parts (6) at two ends, two oil inlets are formed between the elastic parts (6) and the connecting column (42), an oil inlet channel is formed in the middle of the connecting column (42), the connecting column (42) is communicated with the oil pipe (1) through the oil inlet channel, and the lower ends of the two oil inlets of the connecting column (42) are provided with one-way inflow check valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886359.6A CN110578496B (en) | 2019-09-19 | 2019-09-19 | Low-friction well head oil pumping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886359.6A CN110578496B (en) | 2019-09-19 | 2019-09-19 | Low-friction well head oil pumping device |
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| CN110578496A CN110578496A (en) | 2019-12-17 |
| CN110578496B true CN110578496B (en) | 2021-12-31 |
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| CN201910886359.6A Active CN110578496B (en) | 2019-09-19 | 2019-09-19 | Low-friction well head oil pumping device |
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