CN111878009A - Centralizer convenient to equipment - Google Patents
Centralizer convenient to equipment Download PDFInfo
- Publication number
- CN111878009A CN111878009A CN202010912276.2A CN202010912276A CN111878009A CN 111878009 A CN111878009 A CN 111878009A CN 202010912276 A CN202010912276 A CN 202010912276A CN 111878009 A CN111878009 A CN 111878009A
- Authority
- CN
- China
- Prior art keywords
- centralizer
- rod
- guide
- guide sleeves
- sleeve
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 239000003129 oil well Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005493 welding type Methods 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
- 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
- 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
- E21B17/1085—Wear protectors; Blast joints; Hard facing
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a centralizer convenient to assemble, which comprises a sucker rod and a centralizer body, wherein the middle part of the sucker rod is fixedly provided with an upper check ring and a lower check ring, and a detachable centralizer body is arranged between the upper retainer ring and the lower retainer ring, the centralizer comprises two semicircular guide sleeves, the two guide sleeves which are spliced with each other and a guide mechanism arranged on the guide sleeves form the centralizer body, the two guide sleeves are spliced with each other and sleeved on the sucker rod, then the two guide sleeves are buckled and locked by the clamping block to realize fixed connection, so that the centralizer body is more convenient to mount and dismount on the sucker rod, and through the even top of the spring that sets up tightly make keep certain elastic distance between movable sleeve and the dead lever on the inner wall of movable sleeve can make the sucker rod have certain elastic range of motion and prevent that the sucker rod slope from leading to the centralizer to one side partial to the atress reduction unilateral wearing and tearing condition.
Description
Technical Field
The invention relates to the technical field of centralizers, in particular to a centralizer convenient to assemble.
Background
The centralizer plays a role in guiding and centralizing the sucker rod when the oil field is exploited and pumped, is widely applied to pumping operation, belongs to a well cementing tool, has simple manufacture, attractive structure, firmness and durability and large centralizing force, overcomes the defect that the original welding type centralizer is easy to generate desoldering, and is a centralizer capable of ensuring the well drilling and cementing quality. Centralizers are of various types and can be classified into roller type, slide block type, automatic reversing type and the like according to the structure. The centralizer of different structures and materials is applicable to the oil well of different types eccentric wear. The key technology of the eccentric wear prevention process using the centering device is the installation position, the installation distance and the installation quantity of the centering device.
The applicant of the invention finds that the existing centralizer is inconvenient to disassemble and assemble on the sucker rod, the guide part of the centralizer is inconvenient to damage and replace, and the centralizer is prone to being deviated to one side due to the inclination of the sucker rod when the sucker rod is guided, so that the centralizer is seriously abraded on one side.
Disclosure of Invention
The invention aims to provide a centralizer convenient to assemble, and aims to solve the problems that the existing centralizer is inconvenient to disassemble and assemble on a sucker rod, a guide part is inconvenient to damage and replace, and the centralizer is seriously abraded on one side.
The invention is realized by the following steps:
a centralizer convenient to assemble comprises a sucker rod and a centralizer body, wherein the middle part of the sucker rod is fixedly provided with an upper retaining ring and a lower retaining ring, a detachable centralizer body is arranged between the upper retaining ring and the lower retaining ring, the centralizer comprises two semicircular guide sleeves, the two guide sleeves are mutually butted and sleeved on the sucker rod, the outer side surfaces of the two guide sleeves are clamped with a plurality of uniformly distributed guide mechanisms capable of rolling, the guide mechanisms are detachably fixed on the guide sleeves, the outer side guide ends of the guide mechanisms are higher than the outer side surfaces of the guide sleeves, the edges of the two sides of the two guide sleeves are also arranged at the middle part, the corresponding T-shaped clamping grooves on the two guide sleeves are clamped and fixed through clamping blocks, the clamping blocks are fixed on the guide sleeves through fixing screws penetrating through the clamping blocks, the sucker rod is formed by mutually butting a first rod body and a second rod body, the end of the second rod body facing the first rod body is provided with a fixed rod, the end part of the fixed rod is provided with a fixed screw head fixedly connected with the first rod body, the outer side surface of the fixed rod is provided with round grooves which are uniformly distributed, the inner side of the round grooves is provided with a spring, the outer side of the spring is sleeved with a movable sleeve, the centralizer body is sleeved at the outer side of the movable sleeve, the centralizer body is formed by two guide sleeves which are mutually spliced and a guide mechanism arranged on the guide sleeves, the two guide sleeves are mutually spliced and sleeved on the sucker rod, then the two guide sleeves are buckled and locked by a clamping block to realize fixed connection so that the centralizer body is more convenient to mount and dismount on the sucker rod, the rolling guide of the centralizer body in the moving process of the centralizer body in an oil well is realized by the arranged rolling guide mechanism, and the guide mechanism is clamped on the guide sleeves so that the guide mechanism is more convenient to replace after, and through the even top of the spring that sets up tightly make keep certain elastic distance between movable sleeve and the dead lever on the inner wall of movable sleeve can make the sucker rod have certain elastic range of motion and prevent that the sucker rod slope from leading to the centralizer to one side partial to the atress reduction unilateral wearing and tearing condition.
Further, the fixed connector that is provided with in upper end of the first body of rod, and the upper end of connector is provided with screwed joint, and the lower extreme of the second body of rod is provided with the thread bush, and the outside surface of thread bush is provided with the double-layered groove that is used for the opening spanner to cup joint, realizes the fixed connection between two sucker rods through the cooperation of the thread joint who sets up and thread bush to convenient locking through the spanner through the double-layered groove that sets up.
Furthermore, the first connecting sleeve capable of moving up and down is sleeved on the first rod body, an external thread is arranged at the port part of the first connecting sleeve, an inner flange protruding towards the inner side is arranged at one end, far away from the external thread, of the first connecting sleeve, and the first connecting sleeve can be movably hung on the first rod body through the inner flange to further reinforce the two sucker rods when the two sucker rods are connected.
Furthermore, a second connecting sleeve capable of moving up and down is sleeved on the second rod body, an internal thread matched with the external thread is arranged at the port of the second connecting sleeve, an inner flange identical to the first connecting sleeve is arranged at one end, opposite to the internal thread, of the second connecting sleeve, the second connecting sleeve is movably hung at the lower side part of the sucker rod through the inner flange, and connection reinforcement between two connected sucker rods is achieved through fixed connection of the first connecting sleeve and the second connecting sleeve.
Further, be provided with the mounting groove that is used for fixed mounting guiding mechanism who evenly arranges on the uide bushing, and be located the inboard bottom of mounting groove and be provided with the screw hole, realize clamping guiding mechanism through the mounting groove that sets up for guiding mechanism's installation and dismantlement convenience more.
Further, guiding mechanism is including clamping the fixed block in the mounting groove, and the outside of fixed block is close to both ends position and all fixes being provided with two corresponding backup pads, and is provided with the gyro wheel between two corresponding backup pads, and the middle part of fixed block runs through there is the screw, and the fixed block passes through the inboard of screw fixation at the mounting groove, realizes the roll on the oil well inner wall through the gyro wheel that sets up on the fixed block and realizes the better sliding guide to the centralizer body.
Further, joint piece both ends all are provided with T type draw-in groove complex dop, and the middle part of joint piece be provided with fixed screw complex fixed through hole, fixed through hole's inboard is provided with dismantles the screw thread, the joint piece passes through the dop card and realizes the fixed connection to two uide bushings in T type draw-in groove to convenient twist the screw rod into through the dismantlement screw thread that sets up and extract the dismantlement with the joint piece.
Furthermore, the edges of the two ends of one guide sleeve are provided with raised clamping edges, the edges of the two sides of the other guide sleeve are provided with clamping grooves matched with the clamping edges, and the two guide sleeves are spliced with each other through the matching of the clamping edges and the clamping grooves
Compared with the prior art, the invention has the beneficial effects that:
the centralizer is formed by the two guide sleeves which are spliced with each other and the guide mechanism arranged on the guide sleeves, the sucker rod is sleeved with the two guide sleeves, the two guide sleeves are fastened by the clamping block fixed on the sucker rod to realize fixed connection, so that the centralizer is more convenient to mount and dismount on the sucker rod, and the guide mechanism capable of elastically stretching and retracting is arranged to be capable of elastically stretching and retracting to adjust according to the actual stress condition of the centralizer while guiding, so that the problem that one side of the centralizer is seriously abraded due to uneven stress is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of a centralizer of the present invention shown for ease of assembly;
FIG. 2 is a schematic representation of a sucker rod of a centralizer of the present invention shown in an assembled position;
FIG. 3 is a schematic view of a centralizer cup of the present invention illustrating a centralizer that is easy to assemble;
FIG. 4 is a schematic view of a guide sleeve of the centralizer shown in the present disclosure for ease of assembly;
FIG. 5 is a schematic view of a guide mechanism of the centralizer shown in the present invention for ease of assembly;
FIG. 6 is a schematic view of a clamp block of a centralizer of the present invention shown for ease of assembly;
figure 7 is a schematic view of a first and second connection sleeve of a centralizer of the invention shown in an assembled position.
In the figure: 1. a sucker rod; 11. a connector; 12. a threaded joint; 13. a retainer ring; 14. a movable sleeve; 15. fixing the screw head; 16. fixing the rod; 17. a threaded sleeve; 18. a first rod body; 19. a spring; 110. a second rod body; 111. a clamping groove; 2. a first connecting sleeve; 21. an external thread; 3. a centralizer body; 31. a guide sleeve; 311. mounting grooves; 32. edge clamping; 33. a card slot; 34. a guide mechanism; 341. a fixed block; 342. a roller; 343. a support plate; 35. a T-shaped clamping groove; 36. a clamping block; 361. clamping a head; 362. a fixing through hole; 363. disassembling the threads; 364. fixing screws; 4. a second connecting sleeve; 41. an internal thread; 5. and an inner flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Embodiment 1, please refer to fig. 1, fig. 2, fig. 3 and fig. 6 specifically, a centralizer convenient to assemble includes a sucker rod 1 and a centralizer body 3, the middle portion of the sucker rod 1 is fixedly provided with an upper retainer ring 13 and a lower retainer ring 13, and a detachable centralizer body 3 is arranged between the upper retainer ring 13 and the lower retainer ring 13, the centralizer 3 includes two semicircular guide sleeves 31, the two guide sleeves 31 are mutually butted and sleeved on the sucker rod 1, and the outer side surfaces of the two guide sleeves 31 are clamped with a plurality of guide mechanisms 34 which are uniformly arranged and can roll, the guide mechanisms 34 are detachably fixed on the guide sleeves 31, the outer side guide ends of the guide mechanisms 34 are higher than the outer side surfaces of the guide sleeves 31, the edges of the two sides of the two guide sleeves 31 are arranged at the middle portion and are also provided with T-shaped clamping grooves 35, and the T-shaped clamping grooves 35 corresponding to the two guide sleeves 31 are clamped and fixed by a clamping block 36, the clamping block 36 is fixed on the guide sleeve 31 through a fixing screw 364 penetrating through the clamping block, the sucker rod 1 is formed by butting a first rod body 18 and a second rod body 110, one end of the second rod body 110 facing the first rod body 18 is provided with a fixed rod 16, the end part of the fixed rod 16 is provided with a fixed screw head 15 fixedly connected with the first rod body 18, the outer side surface of the fixed rod 16 is provided with uniformly distributed circular grooves, the inner side of the circular groove is provided with a spring 19, the outer side of the spring 19 is sleeved with a movable sleeve 14, the centralizer body 3 is sleeved on the outer side of the movable sleeve 14, the centralizer body 3 is formed by the two guide sleeves 31 which are spliced with each other and a guide mechanism 34 arranged on the guide sleeve 31, the two guide sleeves 31 are spliced with each other and sleeved on the sucker rod 1, then the two guide sleeves 31 are buckled and locked through the clamping block 36 to realize fixed connection, so that the installation and the disassembly of the centralizer body 3 on the sucker, the rolling guide of the centralizer body 3 in the oil well is realized through the arranged guide mechanism 34 capable of rolling, the guide mechanism 34 is clamped on the guide sleeve 31 through the guide mechanism 34, so that the guide mechanism 34 is more convenient to replace after being abraded, and the spring 19 is uniformly pressed on the inner wall of the movable sleeve 14 through the arrangement, so that a certain elastic distance is kept between the movable sleeve 14 and the fixed rod 16, the sucker rod 1 can have a certain elastic moving range, and the sucker rod is prevented from inclining to cause the centralizer to be deviated to one side to bear force to reduce the single-side abrasion condition.
Specifically, referring to fig. 2, a connector 11 is fixedly disposed at the upper end of the first rod 18, a threaded joint 12 is disposed at the upper end of the connector 11, a threaded sleeve 17 is disposed at the lower end of the second rod 110, a clamping groove 111 for sleeving an open wrench is disposed on the outer side surface of the threaded sleeve 17, the two sucker rods 1 are fixedly connected through the matching of the threaded joint 12 and the threaded sleeve 15, and the two sucker rods are conveniently locked through the wrench through the clamping groove 111.
Specifically, referring to fig. 2 and 7, a first connecting sleeve 2 capable of moving up and down is sleeved on the first rod body 18, an external thread 21 is disposed at a port portion of the first connecting sleeve 2, an inner flange 5 protruding towards the inner side is disposed at one end of the first connecting sleeve 2 far away from the external thread 21, and the first connecting sleeve 2 can be movably hung on the first rod body 18 through the inner flange 5 to further reinforce the connection of the two sucker rods 1.
Specifically, referring to fig. 2 and 7, a second connecting sleeve 4 capable of moving up and down is sleeved on the second rod body 110, an internal thread 41 matched with the external thread 21 is arranged at a port of the second connecting sleeve 4, an internal flange 5 identical to the first connecting sleeve 2 is arranged at one end of the second connecting sleeve 4 opposite to the internal thread 41, the second connecting sleeve 4 can be movably hung at the lower side part of the sucker rod 1 through the internal flange 5, and the connection between two connected sucker rods 1 is reinforced through the fixed connection between the first connecting sleeve 2 and the second connecting sleeve 4.
Specifically, referring to fig. 4, the guide sleeve 31 is provided with mounting grooves 311 uniformly arranged for fixedly mounting the guide mechanism 34, and the bottom of the inner side of the mounting groove 311 is provided with a threaded hole, so that the guide mechanism 34 is clamped through the mounting groove 311, and the mounting and dismounting of the guide mechanism 34 are more convenient.
Specifically, referring to fig. 5, the guiding mechanism 34 includes a fixing block 341 clamped in the mounting groove 311, two corresponding supporting plates 343 are fixedly disposed on one outer side of the fixing block 341 near two ends, a roller 342 is disposed between the two corresponding supporting plates 343, a screw penetrates through a middle portion of the fixing block 341, the fixing block 341 is fixed on the inner side of the mounting groove 311 by the screw, and the roller 342 disposed on the fixing block 341 rolls on the inner wall of the oil well to realize better sliding guiding of the centralizer body 3.
Specifically, referring to fig. 6, two ends of the clamping block 36 are provided with clamping heads 361 matched with the T-shaped clamping groove 35, a fixing through hole 362 matched with a fixing screw 364 is arranged in the middle of the clamping block 36, a dismounting screw 363 is arranged on the inner side of the fixing through hole 362, the clamping block 36 is clamped in the T-shaped clamping groove 35 through the clamping heads 361 to realize fixed connection of the two guide sleeves 31, and the screw is conveniently screwed in through the arranged dismounting screw 363 to pull out and dismount the clamping block 36.
Specifically, referring to fig. 3, two end edges of one of the guide sleeves 31 are provided with a raised clamping edge 32, two side edges of the other guide sleeve 31 are provided with a clamping groove 33 matched with the clamping edge 32, and the two guide sleeves 31 are spliced with each other through matching of the clamping edge 32 and the clamping groove 33.
The working principle is that when the oil pumping rod 1 is used, the two guide sleeves 31 are sleeved between the two check rings 13 and are in butt joint with each other, then the clamping blocks 36 are clamped in the T-shaped bayonets 35 and are fixed through the fixing screws 364 to complete the fixed installation of the centralizer body 3, when the oil pumping rod 1 works, the rolling guide is carried out through the rollers 342, when the oil pumping rod 1 moves in an oil well, when the oil pumping rod 1 deflects, the elastic buffer adjustment can be carried out on the movable sleeve 14 through the springs 19, and the problem that the centralizer body 3 is seriously abraded on one side due to the fact that the oil pumping rod 1 is tightly propped on one side is solved.
The device obtained by the design can basically meet the requirements of the existing centralizer on convenient disassembly and installation on the sucker rod and good centralizing and guiding effects on the sucker rod, and can not cause serious abrasion on one side of the centralizer, but the designer further improves the device according to the purpose of further perfecting the function of the centralizer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a centralizer convenient to equipment, includes sucker rod (1) and centralizer body (3), its characterized in that: the middle part of the sucker rod (1) is fixedly provided with an upper retaining ring and a lower retaining ring (13), a detachable centralizer body (3) is arranged between the upper retaining ring and the lower retaining ring (13), the centralizer (3) comprises two semicircular guide sleeves (31), the two guide sleeves (31) are mutually butted and sleeved on the sucker rod (1), a plurality of guide mechanisms (34) which are uniformly distributed and can roll are clamped on the outer side surfaces of the two guide sleeves (31), the guide mechanisms (34) are detachably fixed on the guide sleeves (31), the outer side guide ends of the guide mechanisms (34) are higher than the outer side surfaces of the guide sleeves (31), two side edges of the two guide sleeves (31) are positioned at the middle part and are also provided with T-shaped clamping grooves (35), and the corresponding T-shaped clamping grooves (35) on the two guide sleeves (31) are clamped and fixed through clamping blocks (36), the joint piece (36) is fixed on uide bushing (31) through its fixed screw (364) that runs through, sucker rod (1) is docked mutually by first body of rod (18) and second body of rod (110) and is constituted, the second body of rod (110) is provided with dead lever (16) towards the one end of first body of rod (18), and the tip of dead lever (16) is provided with fixed spiral shell head (15) with first body of rod (18) fixed connection, the outside surface of dead lever (16) is provided with the circular slot of evenly arranging, and is located the inboard of circular slot and be provided with spring (19), the outside cover of spring (19) is equipped with movable sleeve (14), centralizer body (3) cover is in the outside of movable sleeve (14).
2. A centralizer convenient to assemble according to claim 1, characterized in that the upper end of the first rod (18) is fixedly provided with a connector (11), the upper end of the connector (11) is provided with a threaded joint (12), the lower end of the second rod (110) is provided with a threaded sleeve (17), and the outer side surface of the threaded sleeve (17) is provided with a clamping groove (111) for an open wrench to sleeve.
3. The centralizer convenient to assemble of claim 2, characterized in that the first rod body (18) is sleeved with a first connecting sleeve (2) capable of moving up and down, the port of the first connecting sleeve (2) is provided with an external thread (21), and one end of the first connecting sleeve (2) far away from the external thread (21) is provided with an inner flange (5) protruding towards the inner side.
4. A centralizer convenient to assemble according to claim 3, characterized in that the second rod body (110) is sleeved with a second connecting sleeve (4) capable of moving up and down, an internal thread (41) matched with the external thread (21) is arranged at the port of the second connecting sleeve (4), and an internal rib (5) identical to the first connecting sleeve (2) is arranged at the end of the second connecting sleeve (4) opposite to the internal thread (41).
5. A centralizer as claimed in claim 4, characterised in that the said guide sleeve (31) is provided with mounting slots (311) uniformly arranged for fixedly mounting the guide mechanism (34), and the bottom of the inner side of the mounting slot (311) is provided with a threaded hole.
6. The centralizer convenient to assemble according to claim 5, wherein the guide mechanism (34) comprises a fixed block (341) clamped in the mounting groove (311), two corresponding supporting plates (343) are fixedly arranged on one outer side of the fixed block (341) near two ends, a roller (342) is arranged between the two corresponding supporting plates (343), a screw penetrates through the middle of the fixed block (341), and the fixed block (341) is fixed on the inner side of the mounting groove (311) through the screw.
7. The easy-to-assemble centralizer of claim 6, wherein the clamping block (36) is provided with clamping heads (361) at both ends for matching with the T-shaped clamping groove (35), the middle part of the clamping block (36) is provided with a fixing through hole (362) for matching with a fixing screw (364), and the inner side of the fixing through hole (362) is provided with a disassembly thread (363).
8. An easily assembled centralizer according to claim 7, wherein the two end edges of one of the guide sleeves (31) are provided with raised clamping edges (32), and the two side edges of the other guide sleeve (31) are provided with clamping grooves (33) matched with the clamping edges (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010912276.2A CN111878009B (en) | 2020-09-02 | 2020-09-02 | Centralizer convenient to equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010912276.2A CN111878009B (en) | 2020-09-02 | 2020-09-02 | Centralizer convenient to equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111878009A true CN111878009A (en) | 2020-11-03 |
| CN111878009B CN111878009B (en) | 2022-09-30 |
Family
ID=73198631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010912276.2A Active CN111878009B (en) | 2020-09-02 | 2020-09-02 | Centralizer convenient to equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111878009B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047780A (en) * | 2021-03-10 | 2021-06-29 | 东营市三和石油装备有限公司 | Full-spray-welding high-temperature-resistant anti-corrosion sucker rod with centralizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830105A (en) * | 1988-02-08 | 1989-05-16 | Atlantic Richfield Company | Centralizer for wellbore apparatus |
| CN2065512U (en) * | 1989-08-02 | 1990-11-14 | 机械电子工业部第六二研究所 | Universal combined roller |
| CN201326403Y (en) * | 2008-11-24 | 2009-10-14 | 董乔云 | Self-locking packer |
| CN210046305U (en) * | 2019-04-28 | 2020-02-11 | 江苏精威数控机床有限公司 | Split type machine tool body |
| CN210049841U (en) * | 2019-04-10 | 2020-02-11 | 齐齐哈尔亚盛机械制造有限公司 | Wear-resisting sucker rod centralizer |
| CN210422500U (en) * | 2019-08-09 | 2020-04-28 | 东营熙成石油机械制造有限公司 | Inner sleeve split type centralizer |
-
2020
- 2020-09-02 CN CN202010912276.2A patent/CN111878009B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830105A (en) * | 1988-02-08 | 1989-05-16 | Atlantic Richfield Company | Centralizer for wellbore apparatus |
| CN2065512U (en) * | 1989-08-02 | 1990-11-14 | 机械电子工业部第六二研究所 | Universal combined roller |
| CN201326403Y (en) * | 2008-11-24 | 2009-10-14 | 董乔云 | Self-locking packer |
| CN210049841U (en) * | 2019-04-10 | 2020-02-11 | 齐齐哈尔亚盛机械制造有限公司 | Wear-resisting sucker rod centralizer |
| CN210046305U (en) * | 2019-04-28 | 2020-02-11 | 江苏精威数控机床有限公司 | Split type machine tool body |
| CN210422500U (en) * | 2019-08-09 | 2020-04-28 | 东营熙成石油机械制造有限公司 | Inner sleeve split type centralizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047780A (en) * | 2021-03-10 | 2021-06-29 | 东营市三和石油装备有限公司 | Full-spray-welding high-temperature-resistant anti-corrosion sucker rod with centralizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111878009B (en) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209868139U (en) | Steel pipe polishing equipment of adjustable bore | |
| CN111878009B (en) | Centralizer convenient to equipment | |
| CN113404440A (en) | Drilling device for oil exploitation | |
| CN101875188B (en) | Installation fixture of press-seat butterfly valve seat | |
| CN210240841U (en) | Interface sealing structure of nodular cast iron pipe | |
| CN111878005A (en) | Quick-release quick-change sucker rod centralizer and method | |
| CN209698499U (en) | A kind of numerical control drilling machine fixture facilitating installation convenient for adjusting | |
| CN108131105B (en) | Sucker rod centralizer convenient to disassemble and assemble | |
| CN211680965U (en) | Adjustable fixture device for machining pipe fitting drilling | |
| CN112324364B (en) | Be applied to cross sleeve pipe fast-assembling structure of oil well | |
| CN112757217B (en) | Dismantlement formula stern tube bearing dismounting device | |
| CN212224697U (en) | Construction is with recoverable bearing diagonal structure | |
| CN211163898U (en) | Marking device for outer surface of building construction pipe fitting | |
| CN217999515U (en) | Drilling rod snatchs detection device | |
| CN111366351A (en) | Hinge rotation precision detection equipment | |
| CN219993623U (en) | Wear-resistant diamond drill bit | |
| CN220761098U (en) | Drill bit convenient to detach | |
| CN212353313U (en) | Damping rotating shaft for printer | |
| CN215332180U (en) | Corner cut reinforced combined hinge | |
| CN221047487U (en) | Automatic yarn clamping device for external installation of yarn storage cylinder | |
| CN217760042U (en) | Construction formwork supporting structure for constructional engineering | |
| CN220623505U (en) | Total station convenient to assemble | |
| CN216841485U (en) | State feedback centralizer | |
| CN205012940U (en) | Coiled tubing is with holding mechanism | |
| CN210435740U (en) | Efficient and stable upper supporting seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220913 Address after: Xindianban Qianjin village, Dongying District, Dongying City, Shandong Province Applicant after: Dongying Jinshan Petroleum Machinery Manufacturing Co.,Ltd. Address before: Xinghua Village, Longfeng District, Daqing City, Heilongjiang Province, 163000 Applicant before: Tang Shaofeng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |