CN113153226B - Stroke regulating device of single-machine multi-well pumping unit - Google Patents
Stroke regulating device of single-machine multi-well pumping unit Download PDFInfo
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- CN113153226B CN113153226B CN202110354237.XA CN202110354237A CN113153226B CN 113153226 B CN113153226 B CN 113153226B CN 202110354237 A CN202110354237 A CN 202110354237A CN 113153226 B CN113153226 B CN 113153226B
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- 238000005086 pumping Methods 0.000 title claims abstract description 81
- 230000001105 regulatory effect Effects 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 50
- 239000003208 petroleum Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 230000005484 gravity Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 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
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
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- 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
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- 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
- F04B47/14—Counterbalancing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a stroke adjusting device of a single-machine multi-well pumping unit, which relates to petroleum exploitation equipment and comprises: a support part; the power flexible rope input part is fixed on the supporting part and is connected with a power flexible rope led out from a main machine of the single-machine multi-well pumping unit through a pulley device; and the stroke adjusting part is fixed on the supporting part and is connected with the power flexible rope, the power flexible rope is connected with the supporting part through the coaxial reducing roller mechanism or the flexible rope length adjusting component, and the effective stroke of the power output side is adjusted, wherein the power provided by the power flexible rope is input to the underground oil pumping component after passing through the stroke adjusting part. The stroke adjusting device realizes the stroke adjusting function of the multi-well machine system, realizes the personalized adjustment of a single well in the multi-well machine system, and plays an important role in flexible adjustment and stable operation of the multi-well machine system.
Description
Technical Field
The invention relates to petroleum exploitation equipment, in particular to a stroke adjusting device of a single-machine multi-well pumping unit.
Background
In recent years, the oil price is low, the exploitation benefit of the oil field is poor year by year, more than 200 ten thousand of oil pumping wells are available in the oil fields at home and abroad, most of the oil is pumped by a pumping unit, and the pumping unit has large energy consumption, large volume, large weight and lower pumping efficiency benefit because of development for hundreds of years. With the technical progress of one pumping unit for multiple wells, the single power of the main unit of the pumping unit drives the multiple wells to pump oil reciprocally, so that the future development direction is realized. In carrying out the invention, the inventors found that: the Shan Jingduo well pumping unit is characterized in that a single speed reducer system drives a plurality of groups of power flexible ropes to drive oil pumps in a plurality of pumping wells to work respectively so as to transmit power, the steps of the oil pumps are uniform, individual adjustment of a single well cannot be realized, and due to different working condition data of each wellhead, the wellhead power conversion device with uniform steps cannot effectively exert the excellent characteristics of the single-machine multi-well pumping unit. Therefore, how to design a wellhead stroke adjusting device special for a single-well multi-well pumping unit, so that the superior characteristics of the multi-well pumping unit can be better exerted, and the technical problem to be solved is solved.
Disclosure of Invention
The invention aims at solving at least one of the technical problems in the prior art or related art, and provides a stroke adjusting device of a single-machine multi-well pumping unit, which realizes individual adjustment of a single well in a multi-well pumping unit system and is beneficial to better play of superior characteristics of the multi-well pumping unit.
The invention is realized by the following technical scheme: a stroke adjusting device of a single-machine multi-well pumping unit, comprising: a support part; the power flexible rope input part is fixed on the supporting part and is connected with a power flexible rope led out from a main machine of the single-machine multi-well pumping unit through a pulley device; and the stroke adjusting part is fixed on the supporting part and is connected with the power flexible rope, the power flexible rope is connected with the supporting part through the coaxial reducing roller mechanism or the flexible rope length adjusting component, and the effective stroke of the power output side is adjusted, wherein the power provided by the power flexible rope is input to the underground oil pumping component after passing through the stroke adjusting part.
According to the stroke adjusting device of the single-machine multi-well pumping unit, preferably, the power flexible rope input part and the stroke adjusting part are integrated in the same coaxial reducing roller mechanism, the stroke adjusting part further comprises a wellhead fixed pulley, wherein the power flexible rope is connected with the coaxial reducing roller to serve as a first power transmission rope, a second power transmission rope is led out from the coaxial reducing roller, and the second power transmission rope is connected with a downhole pumping assembly through the wellhead fixed pulley.
According to the stroke adjusting device of the single-machine multi-well pumping unit provided by the invention, preferably, the power flexible rope input part comprises a stroke adjusting movable pulley and a movable pulley track, the stroke adjusting part comprises a stroke adjusting upright post, a stroke adjusting flexible rope and a wellhead fixed pulley, a plurality of stroke adjusting interfaces are arranged on the stroke adjusting upright post, the stroke adjusting movable pulley is arranged in the movable pulley track, the power flexible rope is fixedly connected with a wheel shaft of the stroke adjusting movable pulley, one end of the stroke adjusting flexible rope is connected with the stroke adjusting interfaces, and the other end of the stroke adjusting flexible rope is connected to a downhole pumping assembly after passing through the stroke adjusting movable pulley and the wellhead fixed pulley.
According to the stroke adjusting device of the single-machine multi-well pumping unit provided by the invention, preferably, the power flexible rope input part comprises a power input fixed pulley, the stroke adjusting part comprises a stroke adjusting pulley, a balance block lifting rope, a balance block fixed pulley and a well head fixed pulley, wherein the balance block, the balance block lifting rope and the balance block fixed pulley form a reciprocating motion mechanism, the balance block lifting rope is connected with a downhole pumping assembly through the well head fixed pulley, the stroke adjusting pulley is fixed on the balance block, and the power flexible rope is connected with the downhole pumping assembly through the power input fixed pulley, the balance block fixed pulley and the well head fixed pulley in sequence, or the power flexible rope is connected with the downhole pumping assembly through the power input fixed pulley, the stroke adjusting pulley, the balance block fixed pulley and the well head fixed pulley in sequence.
According to the stroke adjusting device of the single-machine multi-well pumping unit provided by the invention, preferably, the stroke adjusting device further comprises: the balance part is arranged on the support part and at least comprises a reciprocating mechanism consisting of a balance block and a fixed pulley, and the reciprocating mechanism is connected with the underground oil pumping assembly.
According to the stroke adjusting device of the single-machine multi-well pumping unit provided by the invention, preferably, the stroke adjusting device further comprises: the rope hanger is arranged on the underground oil pumping assembly and is used for bearing power input provided by the power flexible rope and the balance block.
According to the stroke adjusting device of the single-machine multi-well pumping unit provided by the invention, preferably, the underground pumping unit specifically comprises: sucker rod and leak-proof oil pump.
According to the stroke adjusting device of the single-machine multi-well pumping unit provided by the invention, preferably, the single-machine multi-well pumping unit specifically comprises: a power part which outputs torque through the rotating shaft; the crank part comprises two crank mechanisms which are fixedly connected with two end parts of the rotating shaft respectively, and the free end of each crank mechanism is connected with a plurality of power flexible ropes; the power output part comprises a plurality of power flexible rope guide components which are uniformly distributed along the circumference, and the plurality of power flexible rope guide components are fixed on the power output frame; the free end of the crank mechanism is fixedly connected with one end of the power flexible rope, and the other end of the power flexible rope provides power output to the outside through the power flexible rope guide assembly.
The beneficial effects obtained by the invention at least comprise: the effective stroke of the power flexible rope output side is adjusted by the coaxial reducing roller device through the stroke adjusting pulley, and the position of the upper dead point of the plunger in the pump cylinder during working is changed, so that the stroke of the pumping unit is adjusted. And the balance box arranged on the support frame is connected with a rope hanger of the wellhead through a steel wire rope on the balance box, so that the weight of the sucker rod pump part is balanced when the multi-well machine system works normally. When the oil well stops pumping or works, the flexible rope hoisting gravity balance box can be connected to the main power of the power center by bypassing the wellhead fixed pulley, so that the balance effect of the multi-well pumping system is achieved. The device not only realizes the stroke adjusting function of the multi-well machine system, but also ensures the gravity balance of the pumping unit under various conditions, and plays an important role in flexible adjustment and stable operation of the multi-well machine system.
Drawings
Fig. 1 shows a schematic structure of a stroke adjusting device of a single-machine multi-well pumping unit according to an embodiment of the present invention.
Fig. 2 shows a schematic structure of a stroke adjusting device of a single-machine multi-well pumping unit according to still another embodiment of the present invention.
Fig. 3 is a schematic structural view showing a stroke adjusting device of a single-machine multi-well pumping unit according to still another embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
Example 1
As shown in fig. 1, one specific implementation mode of the stroke adjusting device of the single-machine multi-well pumping unit disclosed by the invention is as follows: the first power transmission rope 102 transmitted from the main machine side passes through the supporting frame 103 positioned on the supporting base 101 and is wound on the small-diameter roller on the coaxial reducing roller 104, the second power transmission rope 105 is wound on the large-diameter roller on the coaxial reducing roller 104, the second power transmission rope 105 is connected with the upper power transmission fixed pulley 106, and is connected with the rope hanger 111 through the wellhead fixed pulley block 107. During normal operation, the first power transmission rope 102 drives the coaxial reducing roller 104 to rotate, the coaxial reducing roller 104 drives the second power transmission rope 105, the second power transmission rope 105 drives the rope hanger 111, and the rope hanger 111 drives the sucker rod to perform oil pumping operation. The stroke of the pumping unit is adjusted by winding two power transmission ropes on two sections with different diameters of the coaxial reducing roller 104 and changing the moving stroke of the rope hanger 111 driven by the power transmission ropes. The balance box guide rail 110 is installed on the support bracket 103 as shown in the position of fig. 1, the balance box 109 moves along the track direction of the balance box guide rail 110, the balance rope 108 is installed on the balance box 109 and is connected with the rope hanger 111 through the wellhead fixed pulley block 107, and the weight of a sucker rod pump 112 is balanced by the self weight of the balance box 109 when the multi-well machine system normally works.
In the embodiment, the stroke adjusting device mainly comprises a supporting base, a supporting frame, a coaxial reducing roller, a first power transmission rope, a second power transmission rope, a fixed power transmission pulley, a wellhead fixed pulley block, a balance rope, a balance box sliding rail, a rope hanger, an oil pump and the like. The first power transmission rope transmitted by the host passes through the lower side of the device and is wound on the small diameter section of the coaxial reducing roller, the second power transmission rope is wound on the large diameter section of the coaxial reducing roller, and the second power transmission rope is connected with the wellhead rope hanger through the power transmission movable pulley and the wellhead fixed pulley block on the upper side of the device. The first power transmission rope from the host drives the second power transmission rope through the coaxial reducing roller, and the second power transmission rope drives the rope hanger and the sucker rod connected with the rope hanger to perform normal oil pumping work. According to the scheme, the coaxial reducing roller is used as a stroke adjusting unit, a first power transmission rope input from a host machine is wound on a small-diameter section of the coaxial reducing roller, a second power transmission rope is wound on a large-diameter section of the coaxial reducing roller, and the stroke of a rope hanger driven by the power transmission ropes is changed due to the fact that the diameters of the two power transmission ropes are different, so that the adjustment of the reciprocating stroke length of the pumping unit is achieved. The balancing box is used as a gravity balancing unit, and the balancing box is connected to the rope hanger to balance part of the weight of the sucker rod pump during normal operation.
Example two
As shown in fig. 2, another specific embodiment of the stroke adjusting device of the single-machine multi-well pumping unit disclosed by the invention is as follows: the support bracket 207 is fixed to the support base 210, and the power transmission rope 209 transmitted from the main machine side is connected to the stroke adjustment movable pulley 206 through the support bracket 207, the stroke adjustment movable pulley 206 is mounted on the movable pulley rail 208, and the movable pulley rail 208 is mounted between the stroke adjustment upright 205 and the support bracket 207 as shown in fig. 2. A section of wire rope 204 is connected to a wire rope interface on the stroke adjusting upright 205, one end of the wire rope 204 is connected to the wire rope interface on the stroke adjusting upright 205, and the other end is connected to the rope hanger 202 through an overshoot stroke adjusting movable pulley 206 and a power transmission fixed pulley 203. In normal operation, the power transmission rope 209 drives the stroke adjusting movable pulley 206, the stroke adjusting movable pulley 206 drives the steel wire rope 204 wound on the stroke adjusting movable pulley, and the steel wire rope 204 drives the connected rope hanger 202 and the sucker rod and the oil pump 201 on the rope hanger 202 to perform oil pumping operation. The stroke of the pumping unit is adjusted by connecting the steel wire rope 204 with the steel wire rope interfaces at different positions of the stroke adjusting upright post 205.
In this embodiment, the stroke adjusting device is mainly composed of an oil pump, a rope hanger, a power transmission fixed pulley, a steel wire rope, a stroke adjusting upright post, a stroke adjusting movable pulley, a supporting bracket, a movable pulley sliding rail, a power transmission rope, a supporting base and the like. The power transmission rope transmitted by the host passes through the lower side support bracket of the device and is connected with the stroke adjusting movable pulley, the stroke adjusting movable pulley is wound with a steel wire rope, one end of the steel wire rope is connected with the steel wire rope connecting port of the stroke adjusting upright post, and the other end of the steel wire rope is connected with the rope hanger through the power transmission fixed pulley. The power transmission rope drives the stroke adjusting movable pulley, the stroke adjusting movable pulley moves along the movable pulley sliding rail, and drives the steel wire rope wound on the stroke adjusting movable pulley, and the steel wire rope drives the rope hanger and the sucker rod pump thereon to conduct reciprocating oil pumping. According to the scheme, the stroke adjusting movable pulley and the stroke adjusting upright post are used as a stroke adjusting unit, the length of a steel wire rope is unchanged, and the length of the steel wire rope driven by the stroke adjusting movable pulley is different through the difference of steel wire rope connectors connected with the stroke adjusting upright post, so that the adjustment of the reciprocating stroke length of the pumping unit is realized.
Example III
As shown in fig. 3, another specific embodiment of the stroke adjusting device of the single-machine multi-well pumping unit disclosed by the invention is as follows: the support bracket 304 is fixed on the support base 301, and the power transmission rope 302 transmitted from the main machine side passes through the support bracket 304 and sequentially bypasses the power transmission fixed pulley 303, the stroke adjusting pulley 305, the flexible line transmission fixed pulley block 308 and the wellhead fixed pulley block 309 to be connected with the rope hanger 311. The stroke adjusting pulley block 305 is mounted on a balance box 306, and the balance box 306 is connected with a rope hanger 311 through a balance rope 307 connected thereto. During normal operation, the power transmission rope 302 drives the rope hanger 311, and the rope hanger 311 drives the sucker rod to perform oil pumping operation. The adjustment of the pumping unit stroke is achieved by the stroke adjustment pulley 305 around which the power transmission rope 302 is wound being mounted at different positions on the balancing box. The balance box guide rail 310 is installed at the position of the support bracket 304 as shown in fig. 3, the balance box 306 moves along the track direction of the balance box guide rail 310, the balance rope 307 is installed on the balance box 306, the balance box is connected with the rope hanger 311 through the wellhead fixed pulley block 309, and the weight of a sucker rod pump 312 part is balanced by the self weight of the balance box 306 when the multi-well machine system normally works.
In this embodiment, the stroke adjusting device is mainly composed of a support base, a power transmission rope, a power transmission fixed pulley, a support bracket, a stroke adjusting pulley, a balance box, a balance rope, a flexible rope conduction fixed pulley block, a wellhead fixed pulley block, a balance box guide rail, a rope hanger, an oil pump and the like. The power transmission rope transmitted by the host machine sequentially bypasses the power transmission fixed pulley, the stroke adjusting pulley, the flexible rope transmission fixed pulley block and the wellhead fixed pulley block from the supporting bracket to be connected with the rope hanger. The power transmission rope drives the rope hanger and the sucker rod connected with the rope hanger to perform normal oil pumping work. In the scheme, the balance box and the stroke adjusting pulley thereon are simultaneously used as a stroke adjusting unit and a gravity balancing unit. The stroke adjusting pulley can be arranged at the upper, middle and lower positions of the balance box, and four strokes are adjusted by arranging the stroke adjusting pulley around which the power transmission rope is wound at the three positions of the balance box and not winding the power transmission rope on the stroke adjusting pulley. The balancing box is connected with the rope hanger through a balancing rope connected with the balancing box, and the weight of the sucker rod pump part is balanced by the self weight of the balancing box when the multi-well machine system works normally.
In addition, according to the embodiment, the gravity balance unit can be used for connecting the flexible rope hoisting gravity balance box to the main power of the power center by bypassing the wellhead fixed pulley when the oil well stops pumping or works, so that the balance effect of the multi-well oil pumping system is achieved, and the problem of unbalanced stress of the system when part of wells of the multi-well system are not working is solved. The matched oil pump without leakage has higher yield and lower energy consumption on the basis of high efficiency and the like of the system.
According to the stroke adjusting device of the single-machine multi-well pumping unit, the effective stroke of the power flexible rope output side is adjusted by the coaxial variable-diameter roller device through the stroke adjusting pulley, and the position of the upper dead point of a plunger in the pump barrel during working is changed, so that the stroke of the pumping unit is adjusted. And the balance box arranged on the support frame is connected with a rope hanger of the wellhead through a steel wire rope on the balance box, so that the weight of the sucker rod pump part is balanced when the multi-well machine system works normally. When the oil well stops pumping or works, the flexible rope hoisting gravity balance box can be connected to the main power of the power center by bypassing the wellhead fixed pulley, so that the balance effect of the multi-well pumping system is achieved. The device not only realizes the stroke adjusting function of the multi-well machine system, but also ensures the gravity balance of the pumping unit under various conditions, and plays an important role in flexible adjustment and stable operation of the multi-well machine system.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A stroke adjusting device of a single-machine multi-well pumping unit, comprising:
a support part;
the power flexible rope input part is fixed on the supporting part and is connected with a power flexible rope led out from a main machine of the single-machine multi-well pumping unit through a pulley device;
a stroke adjusting part fixed on the supporting part;
the power flexible rope input part comprises a power input fixed pulley, the stroke adjustment part comprises a stroke adjustment pulley, a balance block lifting rope, a balance block fixed pulley and a wellhead fixed pulley, wherein the balance block, the balance block lifting rope and the balance block fixed pulley form a reciprocating mechanism, the balance block lifting rope is connected with the underground oil pumping assembly through the wellhead fixed pulley, the stroke adjustment pulley is fixed on the balance block, and the power flexible rope is connected with the underground oil pumping assembly through the power input fixed pulley, the balance block fixed pulley and the wellhead fixed pulley in sequence, or the power flexible rope is connected with the underground oil pumping assembly through the power input fixed pulley, the stroke adjustment pulley, the balance block fixed pulley and the wellhead fixed pulley in sequence; or,
the power flexible rope input part comprises a stroke adjusting movable pulley and a movable pulley track, the stroke adjusting part comprises a stroke adjusting upright post, a stroke adjusting flexible rope and a wellhead fixed pulley, a plurality of stroke adjusting interfaces are arranged on the stroke adjusting upright post, the stroke adjusting movable pulley is arranged in the movable pulley track, the power flexible rope is fixedly connected with a wheel shaft of the stroke adjusting movable pulley, one end of the stroke adjusting flexible rope is connected with the stroke adjusting interfaces, and the other end of the stroke adjusting flexible rope is connected to the underground pumping assembly after passing through the stroke adjusting movable pulley and the wellhead fixed pulley; or,
the power flexible rope is connected, the power flexible rope is connected through a coaxial reducing roller mechanism or a flexible rope length adjusting assembly, and the effective stroke of the power output side is adjusted, wherein the power provided by the power flexible rope is input to the underground oil pumping assembly after passing through the stroke adjusting part; the power flexible rope input part and the stroke adjusting part are integrated in the same coaxial reducing roller mechanism, the stroke adjusting part further comprises a wellhead fixed pulley, wherein the power flexible rope is connected with the coaxial reducing roller to serve as a first power transmission rope, a second power transmission rope is led out of the coaxial reducing roller, and the second power transmission rope is connected with the underground oil pumping assembly through the wellhead fixed pulley;
the stroke adjusting device of the single-machine multi-well pumping unit further comprises:
the balance part is arranged on the support part and at least comprises a reciprocating mechanism consisting of a balance block and a fixed pulley, and the reciprocating mechanism is connected with the underground oil pumping assembly;
the stroke adjusting device of the single-machine multi-well pumping unit further comprises:
the rope hanger is arranged on the underground oil pumping assembly and is used for bearing power input provided by the power flexible rope and the balance block;
the downhole pumping assembly specifically comprises:
sucker rod and leak-proof oil pump;
the single-machine multi-well pumping unit specifically comprises:
a power part which outputs torque through a rotating shaft;
the crank part comprises two crank mechanisms, the two crank mechanisms are fixedly connected with two end parts of the rotating shaft respectively, and the free end of each crank mechanism is connected with a plurality of power flexible ropes;
the power output part comprises a plurality of power flexible rope guide components which are uniformly distributed along the circumference, and the power flexible rope guide components are fixed on the power output frame;
the free end of the crank mechanism is fixedly connected with one end of the power flexible rope, and the other end of the power flexible rope provides power output to the outside through the power flexible rope guide assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110354237.XA CN113153226B (en) | 2021-04-01 | 2021-04-01 | Stroke regulating device of single-machine multi-well pumping unit |
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| CN202110354237.XA CN113153226B (en) | 2021-04-01 | 2021-04-01 | Stroke regulating device of single-machine multi-well pumping unit |
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| CN113153226B true CN113153226B (en) | 2023-05-05 |
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| CN117090523B (en) * | 2023-10-20 | 2024-01-12 | 大庆市华禹石油机械制造有限公司 | Automatic operation vehicle for carbon fiber continuous sucker rod |
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| CN201007198Y (en) * | 2006-12-29 | 2008-01-16 | 大庆油田装备制造集团 | Directly balancing flexible drive oil pumping machine |
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| CN1083180A (en) * | 1993-04-15 | 1994-03-02 | 严增寿 | Crank-drum long-stroke pumping unit |
| CN2206359Y (en) * | 1994-09-15 | 1995-08-30 | 严增寿 | Crank non-conventional type wheel oil pumping unit |
| CN1752406B (en) * | 2005-10-28 | 2013-10-23 | 大庆油田有限责任公司 | Single crank double stroke flexible rope beam-pumping unit |
| CN101182761A (en) * | 2007-12-17 | 2008-05-21 | 重庆科技学院 | Pumping unit with pole |
| CN201991496U (en) * | 2011-02-28 | 2011-09-28 | 大庆大华宏业石油工程技术有限公司 | Adaptive balanced flexible transmission oil pumping unit |
| CN201953357U (en) * | 2011-03-01 | 2011-08-31 | 大庆开发区华创电子有限公司 | Novel roller-type oil pumping machine |
| CN202073541U (en) * | 2011-06-07 | 2011-12-14 | 青岛北海石油装备技术有限公司 | Double-crank twice reciprocation balancing lifting device |
| CN202531121U (en) * | 2012-02-16 | 2012-11-14 | 中国石油天然气股份有限公司 | Non-beam pumping unit |
| CN104373084A (en) * | 2014-11-03 | 2015-02-25 | 王毅 | Walking beam type double-horsehead pulley block pumping unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201007198Y (en) * | 2006-12-29 | 2008-01-16 | 大庆油田装备制造集团 | Directly balancing flexible drive oil pumping machine |
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