CN112855045A - Multi-element protector for suspension rope of sucker rod - Google Patents
Multi-element protector for suspension rope of sucker rod Download PDFInfo
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- CN112855045A CN112855045A CN202110339368.0A CN202110339368A CN112855045A CN 112855045 A CN112855045 A CN 112855045A CN 202110339368 A CN202110339368 A CN 202110339368A CN 112855045 A CN112855045 A CN 112855045A
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- main body
- protector
- protector main
- rod
- bearing
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- 230000001012 protector Effects 0.000 title claims abstract description 96
- 239000000725 suspension Substances 0.000 title claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000003129 oil well Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001331845 Equus asinus x caballus Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a sucker rod suspension rope multi-element protector which comprises a protector main body, a threaded rod, a hair braid, a polished rod and a disc spring, wherein the threaded rod is arranged on the outer side of the protector main body, a first fixing block is arranged on the outer side of the protector main body, the hair braid is connected to the outer side of the protector main body, the polished rod is arranged in the protector main body, and the fixing plate is arranged in the protector main body. This many first protectors of sucker rod polished rod, be provided with first bearing, second compression spring, the first bearing of accessible is connected with the polished rod, and when the polished rod moved, second compression spring can be to buffer action of polished rod, prevent its wearing and tearing seriously, and first limiting plate and second bearing, first limiting plate carries on spacingly to third fixed block and fourth fixed block, thereby prevent that the polished rod ware from dropping, and the first limiting plate of accessible rotates, the polished rod is kept as far as possible on an online with the axis of oil well, make it reduce its degree of wear.
Description
Technical Field
The invention relates to the technical field of polished rod eye protectors, in particular to a sucker rod polished rod eye multi-element protector.
Background
The pumping unit is a machine equipment for exploiting petroleum, and comprises a walking beam, a horsehead connected with one end of the walking beam, a rope hanger, a rope braid connected between the horsehead and the rope hanger, a pumping rod arranged on the rope hanger in a penetrating way, and a sleeve matched with the pumping rod. The mule head can drive the rope hanger to move up and down so that the sucker rod arranged on the rope hanger can move up and down, and then crude oil is pumped out from the ground.
The rope hanger comprises a hanging body, a through hole for the light rod to penetrate through is formed in the hanging body, and an accommodating groove for the lifting rope to penetrate through is formed in the hanging body.
However, in the prior rope hanger, because the sucker rod and the oil pipe have relative contact movement in use, friction is inevitably generated between the sucker rod and the oil pipe, and the abrasion of the sucker rod inevitably occurs, and in the abrasion of the sucker rod, because only one side surface is abraded, the phenomenon is called eccentric abrasion, and when the sucker rod is continuously damaged, the sucker rod is easy to break at the interface of the polished rod and the rope hanger, so that the sucker rod falls into an oil well, the production date of the oil well is short, and the workover operation of the oil well is caused, thereby increasing the input cost of the oil well.
We have therefore proposed a multiple protector for the suspension ropes of sucker rods in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a multi-element protector for a suspension rope of a sucker rod, which aims to solve the problems that friction is inevitably generated between the sucker rod and an oil pipe, the sucker rod is inevitably worn, only one side surface is worn in the process of wearing the sucker rod, the phenomenon is called eccentric wear, and the sucker rod is easy to break when the sucker rod is continuously damaged, so that the sucker rod is transferred into an oil well, the production date of the oil well is short, the well repairing operation of the oil well is caused, and the input cost of the oil well is increased.
In order to achieve the purpose, the invention provides the following technical scheme: a sucker rod polished rod multi-element protector comprises a protector main body, a threaded rod, a hair braid, a polished rod and a belleville spring, wherein the threaded rod is arranged on the outer side of the protector main body, a first fixed block is arranged on the outer side of the protector main body, the hair braid is connected on the outer side of the protector main body, the polished rod is arranged in the protector main body, a first bearing is arranged in the protector main body, a bearing sleeve is connected on the outer side of the first bearing, a first fixed rod is arranged in the protector main body, a first limiting plate is arranged on the outer side of the protector main body, a rotating block is arranged on the outer side of the polished rod, the belleville spring is arranged in the protector main body, a first compression spring is arranged at the lower end of the protector main body, a second limiting plate is arranged at the lower end, the protector is characterized in that a steel weight is arranged on the outer side of the protector body, a third fixed block is arranged on the outer side of the protector body, a fourth fixed block is arranged on the outer side of the protector body, a second compression spring is arranged inside a first bearing, a baffle is arranged inside the first bearing, a second fixed rod is arranged inside the protector body, a second bearing is arranged inside the protector body, a limiting block is arranged inside the protector body, a connecting block is arranged on the outer side of the protector body, the protector body is connected with the first fixed block through the connecting block, and a fixed plate is arranged inside the protector body.
Preferably, the connection mode of the threaded rod and the connection block is threaded connection, and the connection mode of the connection block and the first fixing block is fixed connection.
Preferably, the height of the inside of the bearing sleeve is the same as that of the first bearing, and the bearing sleeve is detachably connected with the first bearing.
Preferably, the first limiting plate is movably connected with the third fixing block and the fourth fixing block, a groove structure is arranged between the third fixing block and the fourth fixing block, and the length of the first limiting plate is greater than that of the groove structure.
Preferably, the connection mode of the rotating block and the light bar is fixed connection, the connection mode of the rotating block and the rotating plate is contact connection, and the width of the rotating plate is smaller than the distance between 2 rotating blocks.
Preferably, the first compression spring is fixedly connected with the second limiting plate, and the second limiting plate is movably connected with the light rod.
Preferably, the inside groove structure that is provided with of second limiting plate, and groove structure's diameter is less than the diameter of second fixed block to the connected mode of second fixed block and polished rod is fixed connection.
Preferably, the steel sinker is in contact connection with the third fixed block, and the third fixed block is provided with a groove structure, and the diameter of the groove structure is smaller than that of the steel sinker.
Preferably, the second compression spring is fixedly connected with the first bearing, and the first bearing is fixedly connected with the baffle.
Compared with the prior art, the invention has the beneficial effects that: the pumping rod suspension rope multi-element protector;
(1) be provided with first bearing, second compression spring, the first bearing of accessible is connected with the polished rod, and when the polished rod moved, second compression spring can be to a cushioning effect of polished rod, prevent its wearing and tearing seriously, and first limiting plate and second bearing, first limiting plate carries on spacingly to third fixed block and fourth fixed block, thereby prevent that the polished rod eye from dropping, and the first limiting plate of accessible rotates, make its polished rod and the axis of oil well maintain as far as possible on an online, make it reduce its degree of wear.
(2) Be provided with the turning block, the rotor plate, first compression spring, the second limiting plate, the second fixed block, when the polished rod falls, accessible rotor plate makes the turning block rotate, and the turning block is fixed on the polished rod, so the turning block can drive the polished rod and move, thereby make the place of polished rod wearing and tearing shift, prevent that its skew degree is too much, and lead to the polished rod fracture, fall to inside the oil well, lead to the blowout, and the polished rod is after the operating time is long, it can not produce cracked to exempt from, the second fixed block takes the polished rod to move down after cracked, because the diameter of the groove structure on the second limiting plate is less than the diameter of second fixed block, thereby can carry on spacingly to the second fixed block, thereby prevent that the polished rod from falling into inside the oil well.
Drawings
FIG. 1 is a schematic view of a main section structure of a multi-element polished rod eye protector of the present invention;
FIG. 2 is a schematic view of a first bearing structure of a multi-element rope-suspension protector of a sucker rod according to the present invention;
FIG. 3 is a schematic view of a structure of a bearing housing of a multi-element rope-suspension protector of a sucker rod according to the present invention;
FIG. 4 is a schematic side view of a rotating plate of a multi-element sucker rod suspension protector according to the present invention;
FIG. 5 is a schematic diagram of a second limiting plate of the multi-element sucker rod suspension protector in a top view;
FIG. 6 is a schematic structural view of a steel sinker of a multi-element sucker rod suspension protector according to the present invention;
FIG. 7 is a schematic view of the main structure of a multi-element rope-suspension protector for a sucker rod according to the present invention;
FIG. 8 is a schematic view of a second bearing structure of the multi-element sucker rod suspension protector of the present invention.
In the figure: 1. a protector main body; 2. a threaded rod; 3. a first fixed block; 4. a hair braid; 5. a polish rod; 6. a first bearing; 7. a bearing housing; 8. a first fixing lever; 9. a first limit plate; 10. rotating the block; 11. a disc spring; 12. a first compression spring; 13. a second limiting plate; 14. a second fixed block; 15. a rotating plate; 16. a steel pendant; 17. a third fixed block; 18. a fourth fixed block; 19. a second compression spring; 20. a baffle plate; 21. a second fixing bar; 22. a second bearing; 23. a limiting block; 24. connecting blocks; 25. and (7) fixing the plate.
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.
Referring to fig. 1-8, the present invention provides a technical solution: a sucker rod suspension rope multi-element protector comprises a protector main body 1, a threaded rod 2, a first fixing block 3, a hair braid 4, a polished rod 5, a first bearing 6, a bearing sleeve 7, a first fixing rod 8, a first limiting plate 9, a rotating block 10, a disc spring 11, a first compression spring 12, a second limiting plate 13, a second fixing block 14, a rotating plate 15, a steel weight 16, a third fixing block 17, a fourth fixing block 18, a second compression spring 19, a baffle 20, a second fixing rod 21, a second bearing 22, a limiting block 23, a connecting block 24 and a fixing plate 25, wherein the threaded rod 2 is arranged on the outer side of the protector main body 1, the first fixing block 3 is arranged on the outer side of the protector main body 1, the hair braid 4 is connected to the outer side of the protector main body 1, the polished rod 5 is arranged inside the protector main body 1, the first bearing 6 is arranged inside the protector main body 1, and the, the protector comprises a protector main body 1, a first fixing rod 8 is arranged in the protector main body 1, a first limiting plate 9 is arranged on the outer side of the protector main body 1, a rotating block 10 is arranged on the outer side of a polished rod 5, a disc spring 11 is arranged in the protector main body 1, a first compression spring 12 is arranged at the lower end of the protector main body 1, a second limiting plate 13 is arranged at the lower end of the first compression spring 12, a second fixing block 14 is arranged at the lower end of the polished rod 5, a rotating plate 15 is arranged in the protector main body 1, a steel weight 16 is arranged on the outer side of the protector main body 1, a third fixing block 17 is arranged on the outer side of the protector main body 1, a fourth fixing block 18 is arranged on the outer side of the protector main body 1, a second compression spring 19 is, the inside stopper 23 that is provided with of protector main part 1, the 1 outside of protector main part is provided with connecting block 24, and protector main part 1 is connected with first fixed block 3 through connecting block 24, and the inside fixed plate 25 that is provided with of protector main part 1.
Threaded rod 2 is threaded connection with connecting block 24's connected mode, and connecting block 24 is fixed connection with first fixed block 3's connected mode, and threaded rod 2 has made things convenient for to install and dismantle connecting block 24 with connecting block 24's connected mode to connecting block 24 has guaranteed with first fixed block 3's connected mode and has made the stability of first fixed block 3.
The inside height of bearing housing 7 is the same with first bearing 6 height, and bearing housing 7 is connected for dismantling with first bearing 6's connected mode, and the inside height of bearing housing 7 is the same with first bearing 6 height has guaranteed to make the fixed first bearing 6 of bearing housing 7 more firm, and bearing housing 7 has made things convenient for when first bearing 6 damages with first bearing 6's connected mode, can change it.
The first limiting plate 9 is movably connected with the third fixing block 17 and the fourth fixing block 18, a groove structure is arranged between the third fixing block 17 and the fourth fixing block 18, the length of the first limiting plate 9 is larger than that of the groove structure, and the third fixing block 17 and the fourth fixing block 18 can be moved by the connecting mode of the first limiting plate 9 with the third fixing block 17 and the fourth fixing block 18 and cannot fall off due to the first limiting plate 9.
The connection mode of turning block 10 and polished rod 5 is fixed connection, and the connection mode of turning block 10 and rotor plate 15 is for the contact connection, and the width of rotor plate 15 is less than the interval between 2 turning blocks 10, and the interval that the connection mode of turning block 10 and polished rod 5 and the width of rotor plate 15 are less than between 2 turning blocks 10 can conveniently rotate polished rod 5 to the face that conveniently wears polished rod 5 rotates, prevents its fracture.
The connection mode of the first compression spring 12 and the second limiting plate 13 is fixed connection, the connection mode of the second limiting plate 13 and the polish rod 5 is movable connection, and the connection mode of the first compression spring 12 and the second limiting plate 13 enables the second limiting plate 13 to be fixed more stably.
The inside groove structure that is provided with of second limiting plate 13, and groove structure's diameter is less than the diameter of second fixed block 14 to the connected mode of second fixed block 14 and polished rod 5 is fixed connection, the inside groove structure that is provided with of second limiting plate 13, and groove structure's diameter setting has made things convenient for when polished rod 5 and polished rod eye connector fracture, and 13 accessible second fixed blocks of second limiting plate 14 are fixed polished rod 5, prevent that cracked polished rod 5 from falling in the oil feed well.
The steel weighs down 16 and is connected for the contact with the connected mode of third fixed block 17, and is provided with groove structure on the third fixed block 17 to groove structure's diameter is less than the diameter that the steel weighs down 16, and the connected mode of steel weighs down 16 and third fixed block 17 has guaranteed that the steel weighs down 16 can fix the rope hanger on hair pigtail 4, prevents that the rope hanger from dropping.
The connection mode of the second compression spring 19 and the first bearing 6 is fixed connection, the connection mode of the first bearing 6 and the baffle plate 20 is fixed connection, the connection mode of the second compression spring 19 and the first bearing 6 ensures that a buffering effect can be given to the polished rod 5, the polished rod 5 is prevented from being broken due to eccentric wear, and the connection mode of the first bearing 6 and the baffle plate 20 prevents bearing beads from touching the second compression spring 19, so that the second compression spring 19 is inclined, and the buffering effect is poor.
The working principle of the embodiment is as follows: when the sucker rod suspension rope multi-element protector is used, firstly, the integrity of the device is checked, then the device is transported to a corresponding working position, then the sucker rod starts to move, the hair braid 4 starts to rise upwards, so that the steel weight 16 drives the third fixing block 17 and the fourth fixing block 18 to rise, because the third fixing block 17 and the fourth fixing block 18 are connected with the rope hanger through the first limiting plate 9, the third fixing block 17 and the fourth fixing block 18 drive the rope hanger to rise, the polished rod 5 also rises, so that the sucker rod pumps oil, then when the rope hanger reaches the highest position, the rope hanger drives the polished rod 5 to move downwards, the steel weight 16 is separated from the third fixing block 17, so that the second fixing block 14 falls due to gravity, when the axis of the polished rod 5 is not in the same line with the axis of an oil well, the third fixing block 17 and the fourth fixing block 18 pass through the second bearing 22, the deviation occurs, so that the axis of the polished rod 5 and the axis of the oil well are kept on the same line as much as possible, the eccentric wear degree of the polished rod 5 is reduced, the polished rod 5 moves downwards, the rotating block 10 moves downwards and then contacts the rotating plate 15, so that the polished rod 5 starts to rotate, the worn position of the polished rod 5 is shifted, and the polished rod 5 is prevented from being broken due to excessive wear of one position, so that the polished rod 5 falls into the oil well, the well blowout phenomenon is caused, and the working efficiency is influenced.
The polish rod 5 extrudes the first bearing 6 in the moving process to extrude the second compression spring 19, so that the second compression spring 19 gives a buffering effect to the polish rod 5 to prevent the polish rod 5 from being worn too severely in the moving process, and the belleville spring 11 also gives a buffering effect to the polish rod 5, when the moving time is too long, the polish rod 5 is worn too severely to cause the polish rod 5 to be broken at the joint of the polish rod 5 and the rope hanger, the polish rod 5 falls downwards to enable the second fixing block 14 to fall, because the diameter of the second fixing block 14 is larger than that of the groove structure on the second limiting plate 13, the polish rod 5 is clamped on the second limiting plate 13 to prevent the polish rod 5 from falling into the oil well, after the moving is finished, the bearing sleeve 7 is separated from the first bearing 6 by disassembling the threaded rod 2, and the limiting block 23, The connecting block 24 and the fixing plate 25 are disassembled to complete the disassembling process, and thus the whole working process is completed, and the details which are not described in detail in this specification, such as the disc spring 11, etc., are well known to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a sucker rod suspension rope multiple protector, includes protector main part (1), threaded rod (2), hair pigtail (4), polished rod (5) and belleville spring (11), its characterized in that: the outer side of the protector main body (1) is provided with a threaded rod (2), the outer side of the protector main body (1) is provided with a first fixed block (3), the outer side of the protector main body (1) is connected with a hair braid (4), the inner side of the protector main body (1) is provided with a polished rod (5), the inner side of the protector main body (1) is provided with a first bearing (6), the outer side of the first bearing (6) is connected with a bearing sleeve (7), the inner side of the protector main body (1) is provided with a first fixed rod (8), the outer side of the protector main body (1) is provided with a first limiting plate (9), the outer side of the polished rod (5) is provided with a rotating block (10), the inner side of the protector main body (1) is provided with a disc spring (11), the lower end of the protector main body (1) is provided with a first compression spring (12, the lower end of the polish rod (5) is provided with a second fixed block (14), a rotating plate (15) is arranged inside the protector main body (1), a steel weight (16) is arranged outside the protector main body (1), a third fixed block (17) is arranged outside the protector main body (1), a fourth fixed block (18) is arranged outside the protector main body (1), a second compression spring (19) is arranged inside the first bearing (6), a baffle (20) is arranged inside the first bearing (6), a second fixed rod (21) is arranged inside the protector main body (1), a second bearing (22) is arranged inside the protector main body (1), a limit block (23) is arranged inside the protector main body (1), a connecting block (24) is arranged outside the protector main body (1), and the protector main body (1) is connected with the first fixed block (3) through the connecting block (24), the protector main body (1) is internally provided with a fixing plate (25).
2. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the threaded rod (2) is connected with the connecting block (24) in a threaded mode, and the connecting block (24) is fixedly connected with the first fixing block (3) in a connecting mode.
3. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the height of the interior of the bearing sleeve (7) is the same as that of the first bearing (6), and the bearing sleeve (7) is detachably connected with the first bearing (6).
4. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the first limiting plate (9) is movably connected with the third fixing block (17) and the fourth fixing block (18), a groove structure is arranged between the third fixing block (17) and the fourth fixing block (18), and the length of the first limiting plate (9) is larger than that of the groove structure.
5. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the connecting mode of the rotating block (10) and the polished rod (5) is fixed connection, the connecting mode of the rotating block (10) and the rotating plate (15) is contact connection, and the width of the rotating plate (15) is smaller than the distance between 2 rotating blocks (10).
6. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the first compression spring (12) is fixedly connected with the second limiting plate (13), and the second limiting plate (13) is movably connected with the polish rod (5).
7. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the inside groove structure that is provided with of second limiting plate (13), and the diameter of groove structure is less than the diameter of second fixed block (14) to the connected mode of second fixed block (14) and polished rod (5) is fixed connection.
8. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the steel sinker (16) is in contact connection with the third fixed block (17), a groove structure is arranged on the third fixed block (17), and the diameter of the groove structure is smaller than that of the steel sinker (16).
9. The multi-element protector for sucker rod suspension ropes of claim 1, wherein: the second compression spring (19) is fixedly connected with the first bearing (6), and the first bearing (6) is fixedly connected with the baffle (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339368.0A CN112855045A (en) | 2021-03-30 | 2021-03-30 | Multi-element protector for suspension rope of sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339368.0A CN112855045A (en) | 2021-03-30 | 2021-03-30 | Multi-element protector for suspension rope of sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112855045A true CN112855045A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110339368.0A Pending CN112855045A (en) | 2021-03-30 | 2021-03-30 | Multi-element protector for suspension rope of sucker rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN112855045A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482579A (en) * | 2021-08-25 | 2021-10-08 | 陈圣志 | Self-adjusting consumption-reducing energy-saving device of oil pumping unit |
| CN114622867A (en) * | 2022-03-21 | 2022-06-14 | 奥宸科技有限公司 | Multifunctional protector for sucker rod of oil well |
| CN114622838A (en) * | 2022-02-28 | 2022-06-14 | 华运隆腾机械制造有限公司 | Eccentric wear prevention comprehensive protection device for sucker rod |
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