CN112282700A - Mud scraper - Google Patents
Mud scraper Download PDFInfo
- Publication number
- CN112282700A CN112282700A CN202011434028.8A CN202011434028A CN112282700A CN 112282700 A CN112282700 A CN 112282700A CN 202011434028 A CN202011434028 A CN 202011434028A CN 112282700 A CN112282700 A CN 112282700A
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- China
- Prior art keywords
- adjusting
- sleeve
- spring
- baffle
- upper plate
- 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.)
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- 238000003825 pressing Methods 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims 1
- 210000004907 gland Anatomy 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000007790 scraping Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning In General (AREA)
Abstract
The invention belongs to the field of oil field pipe fitting cleaning equipment, and provides a mud scraper which comprises: the device comprises a cylindrical sleeve with a through hole in the center, a pressing cap arranged at the top of the sleeve, an annular upper plate, an annular lower plate, a combined spring, an adjusting baffle and an adjusting assembly; the annular upper plate is embedded between the sleeve and the pressing cap, the annular lower plate is embedded above the bottom of the sleeve, and a plurality of holes corresponding to the positions are formed in the circumferential direction of the annular upper plate and the annular lower plate; the combined spring comprises a plurality of spring wires with a plurality of bent parts, and two ends of each spring wire are respectively inserted into the corresponding holes on the annular upper plate and the annular lower plate; the adjusting baffle abuts against the bending part protruding outwards from the spring wire, the adjusting baffle comprises at least two arc-shaped baffles, and a gap is reserved between every two adjacent arc-shaped baffles; and the adjusting part assembly is connected with each circular arc baffle. The mud oil scraper can thoroughly scrape mud oil on the outer surface of a drill rod or an oil pipe, is convenient to replace, and has long service life.
Description
Technical Field
The invention relates to the field of oil field pipe fitting cleaning equipment, in particular to a mud scraper.
Background
At present, when an oil field is drilled and repaired, a drill rod or an oil pipe can be adhered with impurities such as slurry, oil stains and the like on the outer surface in the process of lifting and lowering, if the impurities are not processed in time, certain pollution can be caused to the site, and the operation is very unfavorable for site operation of operation workers. At present, the methods for treating the outer surfaces of the drill pipes and the oil pipes on site by a drilling crew are more, but certain defects exist, and the method is particularly obvious in the process of lifting the drill pipes and the oil pipes. Because the outer diameters of the drill rod and the oil pipe are different in diameter, for example, the outer diameter of the body of the drill rod is smaller than that of a drill rod joint, and the outer diameter of the body of the oil pipe is smaller than that of an oil pipe coupling, the problem of incomplete scraping can be caused if a pipe scraper with the same diameter is used when slurry and oil outside the drill rod and the oil pipe are treated, and repeated work (the outer diameter of the treated drill rod or the outer diameter of the treated oil pipe is large and small) is difficult to realize long-time effective work for the common pipe scraper due to the fact that the drill rod and the oil pipe are connected together, which is a practical problem existing in the current drilling and workover field when the condition is treated.
In addition, because of the above-mentioned reason, current ordinary pipe scraper is worn and torn seriously in the use, and the replacement cost is huge, is difficult to satisfy actual production's needs, and need consume more manpower and materials during the change and just can accomplish, consequently how can be quick with various pipe fittings or poles, like drilling rod, the outside mud of oil pipe, greasy dirt etc. clearance, the working life of extension sludge scraper, reduce sludge scraper's use and maintenance cost, become the technological problem that the field awaits the solution urgently.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides a mud scraper which can thoroughly scrape mud, oil stains and other impurities on the outer surface of various pipe fittings or rods, such as a drill rod or an oil pipe, is convenient to replace and has long service life.
The mud scraper provided by the embodiment of the invention comprises: the device comprises a cylindrical sleeve with a through hole in the center, a pressing cap arranged at the top of the sleeve, an annular upper plate, an annular lower plate, a combined spring, an adjusting baffle and an adjusting assembly;
the annular upper plate is embedded between the sleeve and the pressure cap, the annular lower plate is embedded above the bottom of the sleeve, and a plurality of holes corresponding to the positions are formed in the circumferential direction of the annular upper plate and the annular lower plate;
the combined spring comprises a plurality of spring wires with a plurality of bent parts, and two ends of each spring wire are respectively inserted into corresponding holes on the annular upper plate and the annular lower plate;
the adjusting baffle abuts against the bending part protruding outwards from the spring wire, the adjusting baffle comprises at least two arc-shaped baffles, and a gap is reserved between every two adjacent arc-shaped baffles;
the adjusting assembly is connected with each arc-shaped baffle and is used for adjusting the distance between the adjusting baffle and the inner wall of the sleeve.
Optionally, the sleeve, the pressing cap, the annular upper plate and the annular lower plate are all of a multi-petal type, a two-petal type or an integrated type structure.
Furthermore, the adjusting assembly comprises a blocking rod and an adjusting ring, one axial end of the blocking rod is connected with each arc-shaped baffle, and the adjusting ring is sleeved at the other end of the blocking rod and is in sliding connection with the adjusting ring.
Preferably, the stop lever sleeve is provided with an adjusting spring, the adjusting spring is positioned between the adjusting baffle and the adjusting ring, when the adjusting mechanism is in a working state, one axial end of the adjusting ring abuts against the adjusting spring, and the outer side of the adjusting ring is connected with a through hole with internal threads, which is formed in the middle of the sleeve, through threads.
Optionally, a step is arranged on the stop rod, one axial end of the adjusting ring abuts against the step, and the outer side of the adjusting ring is connected with a through hole with an internal thread arranged in the middle of the sleeve through a thread.
Preferably, the stop lever is arranged at the center of the circular arc baffle.
Further, a fastener for connecting every two pieces of the sleeve is arranged on the sleeve.
Preferably, the fastener includes a connecting plate and a bolt, and the connecting plate is connected by the bolt.
Furthermore, the pressing cap is fixedly connected with the sleeve through a pin shaft or a bolt.
The embodiment of the invention has the following beneficial technical effects:
the spring wire is tightly attached to a pipe fitting or a rod needing to be cleaned, such as the outer wall of a drill rod or an oil pipe, under the action of the elastic force of the spring wire, so that impurities such as slurry, oil stains and the like on the surface of the spring wire are scraped off. Due to the special shape of the spring wires and the gaps reserved between the adjacent spring wires, sundries such as scraped mud and oil stains can fall into a shaft through the gaps, so that the mud and oil stains on the outer surface of the pipe fitting can be thoroughly scraped; because the spring wire in the structure has elasticity in both the horizontal direction and the vertical direction, the spring wire can scrape the outer wall of the pipe or the rod in all directions along with the up-and-down movement or rotation of the pipe or the rod, and the scraping effect is better than that of the conventional fixed scraping device; and the combined spring is composed of a plurality of spring wires, the spring wires cannot be influenced mutually, the damage of a certain spring wire cannot influence the whole scraping effect, the damaged spring wire only needs to be directly replaced during maintenance, the whole device does not need to be replaced, the maintenance cost and the required time are greatly reduced, and the labor intensity of constructors is reduced.
The embodiment of the invention adopts the structure of the adjusting baffle plate, so that the elasticity of the whole combined spring can be adjusted, different scraping forces can be obtained, and the use effect on different working conditions is better;
in addition, in the preferred embodiment of the invention, the stop lever can slide in the adjusting ring, so that when impurities which are difficult to scrape or the connection part of the pipe fitting and the rod deforms, the position of the adjusting baffle can be adjusted along with the deformation under the action of the adjusting spring, the spring wire is prevented from being damaged by overlarge stress or causing trauma to the pipe fitting or the rod, and the service life of the mud scraper is prolonged.
Drawings
Fig. 1 is a partially sectional schematic structural diagram of a mud scraper according to an embodiment of the present invention in a use state.
Fig. 2 is a schematic side view of the mud scraper in the embodiment of fig. 1 according to the present invention.
Fig. 3 is a structural sectional view of the single-blade mud scraper in the embodiment shown in fig. 1.
Fig. 4 is a schematic top view of the adjusting baffle in the embodiment of fig. 1.
Fig. 5 is a schematic structural diagram of a single spring wire in an embodiment of the present invention.
Fig. 6 is a schematic structural view, partially in section, showing a use state of the mud scraper according to another embodiment of the present invention.
In the figure, 1 is a drill rod or an oil pipe, 2 is a press cap, 3 is an annular upper plate, 4 is a pin shaft, 5 is a sleeve, 6 is a spring wire, 7 is an adjusting baffle, 8 is an adjusting ring, 9 is a stop rod, 10 is an adjusting spring, 11 is an annular lower plate, 12 is a connecting plate, and 13 is a step.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, several meanings are one or more and several meanings are more than two, and unless explicitly defined otherwise, terms such as setting, installing, connecting and the like in the description of the present invention should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention by combining the specific contents of technical solutions.
Referring to fig. 1, an embodiment of the present invention discloses a mud scraper, including: the device comprises a cylindrical sleeve 5 with a through hole in the center, a pressing cap 2 arranged at the top of the sleeve 5, an annular upper plate 3, an annular lower plate 11, a combined spring, an adjusting baffle 7 and an adjusting assembly; the annular upper plate 3 is embedded between the sleeve 5 and the pressing cap 2, the annular lower plate 11 is embedded above the bottom of the sleeve 5, and a plurality of holes corresponding to the positions are arranged along the circumferential direction of the annular upper plate 3 and the annular lower plate 11; the combined spring comprises a plurality of spring wires 6 with a plurality of bent parts, and two ends of each spring wire 6 are respectively inserted into corresponding holes on the annular upper plate 3 and the annular lower plate 11; the adjusting baffle 7 abuts against the bending part of the spring wire 6 protruding outwards, the adjusting baffle 7 comprises at least two arc-shaped baffles, and a gap is reserved between every two adjacent arc-shaped baffles; the adjusting assembly is connected with each circular arc baffle and is used for adjusting the distance between the adjusting baffle 7 and the inner wall of the sleeve 5.
In the embodiment of the invention, each spring wire 6 has a plurality of bending parts, and at least one bending part is in contact with the drill rod or the oil pipe 1 in the working state of the mud scraper, namely the mud scraping state. As a preferred embodiment of the present invention, the structure of the single spring wire 6 of the combined spring is schematically shown in fig. 6, and has 3 bending portions, when the mud scraper is in an operating state, two bending portions of each spring wire 6 are in contact with the drill pipe or oil pipe 1 in the mud scraping state, and another bending portion far away from the pipe or rod is in contact with the adjusting baffle 7.
Preferably, as shown in fig. 1 and 2, in the embodiment of the present invention, the sleeve 5, the pressing cap 2, the annular upper plate 3, the annular lower plate 11, and the adjusting baffle 7 are all in a two-piece type, so that the sleeve 5, the pressing cap 2, the annular upper plate 3, and the annular lower plate 11 are used in cooperation with the two-piece type adjusting baffle 7, and can be directly sleeved on the outer side of the drill rod or oil pipe 1, which is more convenient to operate. On the outside of the sleeve 5, a fastening element is then provided, by means of which two adjacent valve sleeves 5 are connected or disconnected.
Preferably, as shown in fig. 2, the fastening means is a corresponding connecting plate 12 provided on the two-piece sleeve 5, and the fastening means is fixedly connected by bolts to form a complete wiper, it being understood that the fastening means may be connected by other connecting members as will occur to those skilled in the art.
Optionally, the sleeve 5, the pressing cap 2, the annular upper plate 3, the annular lower plate 11 and the adjusting baffle 7 may also be of a multi-petal structure.
In an embodiment of the present invention, the adjusting assembly includes a blocking rod 9 and an adjusting ring 8, one axial end of the blocking rod 9 is connected to each circular arc-shaped baffle, the other end of the blocking rod 9 is sleeved with the adjusting ring 8 and slidably connected to the adjusting ring 8, and the distance between the adjusting baffle 7 and the inner wall of the sleeve 5 is adjusted by adjusting the relative position between the adjusting ring 8 and the blocking rod 9.
Preferably, the stop lever 9 is sleeved with an adjusting spring 10, the adjusting spring 10 is located between the adjusting baffle 7 and the adjusting ring 8, when the adjusting device is in a working state, one axial end of the adjusting ring 8 abuts against the adjusting spring 10, and the outer side of the adjusting ring 8 is connected with a through hole with internal threads, which is formed in the middle of the sleeve 5, through threads. The stop lever 9 can slide in the adjusting ring 8, so that when impurities which are difficult to scrape off are encountered, or the joint of the drill rod and the oil pipe 1 deforms, the adjusting baffle 7 can be adjusted along with the deformation under the action of the adjusting spring 10, and the secondary use of the spring wire 6 is prevented from being influenced by the overlarge stress damage or the trauma to the pipe fitting or the rod.
Alternatively, as shown in fig. 6, the adjusting assembly may be realized in another way, that is, a step 13 is provided on the stop rod 9, one axial end of the adjusting ring 8 abuts against the step 13, and the outer side of the adjusting ring 8 is connected with a through hole with an internal thread provided in the middle of the sleeve 5 through a thread. When the combined spring is used specifically, the distance between the adjusting baffle 7 and the inner wall of the sleeve 5 is adjusted through the adjusting ring 8 which is abutted against the stop lever 9, so that the effect of adjusting the elasticity of the combined spring is realized.
Preferably, the stop lever 9 is arranged at the center of the circular arc-shaped baffle, so that the stop lever 9 can uniformly bear the force on the adjusting baffle 7, and the elasticity of the combined spring can be better adjusted.
In the embodiment of the invention, as the drill rod or the oil pipe 1 can apply an upward force to the spring wire 6 when being lifted, in order to avoid the spring wire 6 from being punched out of the upper plate hole, the pressing cap 2 is fixedly connected with the sleeve 5 by using the connecting mechanism, thereby ensuring the safety. It will be appreciated that the connection mechanism may be a bolt or pin 4, or other connection mechanism as will occur to those of skill in the art.
According to the mud scraper provided by the invention, at least one part of the spring wire 6 is in contact with a pipe fitting or a rod, such as a drill rod or an oil pipe 1, when the mud scraper is in a working state, the spring wire 6 with the structure can be inserted between the annular upper plate 3 and the annular lower plate 11, and an annular combined spring is formed and is in direct contact with the drill rod or the oil pipe 1. When the annular combined spring is used specifically, the position of the adjusting ring 8 and the wall of the sleeve 5 is pre-adjusted according to the diameter of the drill rod or the oil pipe 1, the size of a gap between the arc-shaped baffles is adjusted, so that annular combined springs with different diameters are formed, the split sleeve 5 is sleeved on the outer side of the drill rod or the oil pipe 1, the sleeve 5 is fixed together through a fastener, a complete sludge scraper is formed, then the adjusting ring 8 is rotated again to ensure that the spring wire 6 of the annular combined spring is in direct contact with a pipe fitting or a rod and forms a certain pre-tightening force, at the moment, the pipe fitting or the rod can be lifted, the spring wire 6 is tightly attached to the outer wall of the drill rod or the oil pipe 1 under the action of the self-elastic force, so that impurities such as slurry, oil stains and the like on the surface of the pipe fitting or the rod are scraped, and because of the shape of the spring wire 6 and, thereby realizing the thorough scraping of the impurities such as mud, oil stain and the like on the outer surface of the pipe fitting or the rod. Because the equal elasticity of no matter horizontal direction or vertical direction of spring wire 6 self among the above-mentioned structure, can accompany reciprocating or rotatory of drilling rod or oil pipe 1 and form the omnidirectional to its outer wall and strike off, current conventional fixed scraping device of comparing, strike off the effect better, and foretell combination spring comprises a plurality of spring wires 6, can not influence each other between the spring wire 6, the damage of certain spring wire 6 can not influence whole effect of striking off, and only need during the maintenance with the spring wire 6 direct replacement of damage can, need not change whole device, greatly reduced the cost and the required time of maintenance, constructor's intensity of labour has been reduced simultaneously.
In the preferred embodiment of the invention, the whole sludge scraper adopts a two-petal design, so that the installation and the maintenance are more convenient, and meanwhile, due to the adoption of the structure of the adjusting baffle 7, the elasticity of the whole combined spring can be adjusted, so that different scraping force can be obtained, and the sludge scraper has better use effect on different working conditions.
In another embodiment of the present invention, the sleeve 5, the pressing cap 2, the annular upper plate 3, and the annular lower plate 11 are all of an integrated structure, and other structures are completely the same as those of the above embodiment, and when in specific use, the adjusting ring 8 needs to be adjusted to the outermost position to make all the spring wires 6 of the entire combined spring in an untensioned state, so as to facilitate the pipe or rod to pass through the adjusting ring, and then the combined spring is directly contacted with the pipe or rod by adjusting the adjusting ring 8, and other specific operations refer to the above embodiment, and are not described herein again.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. A mud scraper, comprising: the device comprises a cylindrical sleeve (5) with a through hole in the center, a pressing cap (2) arranged at the top of the sleeve (5), an annular upper plate (3), an annular lower plate (11), a combined spring, an adjusting baffle plate (7) and an adjusting assembly;
the annular upper plate (3) is embedded between the sleeve (5) and the pressing cap (2), the annular lower plate (11) is embedded above the bottom of the sleeve (5), and a plurality of holes corresponding to the positions are formed in the circumferential direction of the annular upper plate (3) and the annular lower plate (11);
the combined spring comprises a plurality of spring wires (6) with a plurality of bending parts, and each spring wire (6)
Are respectively inserted into the corresponding holes on the annular upper plate (3) and the annular lower plate (11);
the adjusting baffle (7) abuts against the bending part protruding outwards from the spring wire (6), the adjusting baffle (7) comprises at least two arc-shaped baffles, and a gap is reserved between every two adjacent arc-shaped baffles;
the adjusting assembly is connected with each circular arc baffle and used for adjusting the distance between the adjusting baffle (7) and the inner wall of the sleeve (5).
2. The mud scraper according to claim 1, characterized in that the sleeve (5), the gland cap (2), the annular upper plate (3) and the annular lower plate (11) are all of a two-lobed or multi-lobed or unitary construction.
3. The sludge scraper as claimed in claim 1 or 2, characterized in that the adjusting assembly comprises a blocking rod (9) and an adjusting ring (8), one axial end of the blocking rod (9) is connected with each circular arc baffle, and the other end of the blocking rod (9) is sleeved with the adjusting ring (8) and is in sliding connection with the adjusting ring (8).
4. The sludge scraper according to claim 3, characterized in that the stop lever (9) is sleeved with an adjusting spring (10), the adjusting spring (10) is located between the adjusting baffle (7) and the adjusting ring (8), when the sludge scraper is in an operating state, one axial end of the adjusting ring (8) abuts against the adjusting spring (10), and the outer side of the adjusting ring (8) is connected with a through hole with internal threads arranged in the middle of the sleeve (5) through threads.
5. The mud scraper according to claim 3, characterized in that the stop lever (9) is provided with a step (13), one axial end of the adjusting ring (8) abuts against the step (13), and the outer side of the adjusting ring (8) is connected with a through hole with internal thread arranged in the middle of the sleeve (5) through a thread.
6. The mud scraper according to claim 3, characterized in that the blocking lever (9) is arranged in the center of the circular arc shaped baffle.
7. The mud scraper of claim 2, wherein: the sleeve (5) is provided with a fastener for connecting every two sections of the sleeve (5).
8. The mud scraper of claim 7, wherein: the fastener comprises a connecting plate (12) and a bolt, by means of which the connecting plate (12) is connected.
9. The mud scraper according to claim 1 or 2, characterized in that: the pressure cap (2) is fixedly connected with the sleeve (5) through a pin shaft (4) or a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011434028.8A CN112282700B (en) | 2020-12-10 | 2020-12-10 | Mud scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011434028.8A CN112282700B (en) | 2020-12-10 | 2020-12-10 | Mud scraper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112282700A true CN112282700A (en) | 2021-01-29 |
| CN112282700B CN112282700B (en) | 2022-04-12 |
Family
ID=74426871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011434028.8A Active CN112282700B (en) | 2020-12-10 | 2020-12-10 | Mud scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112282700B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB667707A (en) * | 1950-01-10 | 1952-03-05 | Kenneth Andrew Wright | Improvements in or relating to a wall scratcher for wells |
| GB727856A (en) * | 1953-05-05 | 1955-04-06 | Jesse Elmer Hall | Improvements in or relating to centralisers for use in conditioning and cementing well bores |
| US20070277970A1 (en) * | 2004-07-15 | 2007-12-06 | Ketil Botnmark | Apparatus For Wiping The Interior Of Pipes |
| CN102182425A (en) * | 2011-05-27 | 2011-09-14 | 于洪学 | Suspended movable drill rod mud scraping device |
| CN104047573A (en) * | 2014-06-16 | 2014-09-17 | 张晶晶 | Drill pipe mud scraping device |
| CN205422649U (en) * | 2016-02-26 | 2016-08-03 | 河北上善石油机械有限公司 | Scraper |
| CN205532489U (en) * | 2016-01-18 | 2016-08-31 | 吉林大学 | Drilling tool outer wall mud cleaning device |
| CN206397474U (en) * | 2017-01-18 | 2017-08-11 | 中国石油大学胜利学院 | Well workover sucker rod oil removal device |
| CN208122831U (en) * | 2018-04-16 | 2018-11-20 | 克拉玛依市新庆新防腐技术有限责任公司 | Oil pipe mud-scraping apparatus |
| CN208152988U (en) * | 2018-03-23 | 2018-11-27 | 中石化石油工程技术服务有限公司 | A kind of novel drill rod scraper |
| CN210483646U (en) * | 2019-06-27 | 2020-05-08 | 中国石油天然气股份有限公司 | Oil scraping disc and oil scraping device |
-
2020
- 2020-12-10 CN CN202011434028.8A patent/CN112282700B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB667707A (en) * | 1950-01-10 | 1952-03-05 | Kenneth Andrew Wright | Improvements in or relating to a wall scratcher for wells |
| GB727856A (en) * | 1953-05-05 | 1955-04-06 | Jesse Elmer Hall | Improvements in or relating to centralisers for use in conditioning and cementing well bores |
| US20070277970A1 (en) * | 2004-07-15 | 2007-12-06 | Ketil Botnmark | Apparatus For Wiping The Interior Of Pipes |
| CN102182425A (en) * | 2011-05-27 | 2011-09-14 | 于洪学 | Suspended movable drill rod mud scraping device |
| CN104047573A (en) * | 2014-06-16 | 2014-09-17 | 张晶晶 | Drill pipe mud scraping device |
| CN205532489U (en) * | 2016-01-18 | 2016-08-31 | 吉林大学 | Drilling tool outer wall mud cleaning device |
| CN205422649U (en) * | 2016-02-26 | 2016-08-03 | 河北上善石油机械有限公司 | Scraper |
| CN206397474U (en) * | 2017-01-18 | 2017-08-11 | 中国石油大学胜利学院 | Well workover sucker rod oil removal device |
| CN208152988U (en) * | 2018-03-23 | 2018-11-27 | 中石化石油工程技术服务有限公司 | A kind of novel drill rod scraper |
| CN208122831U (en) * | 2018-04-16 | 2018-11-20 | 克拉玛依市新庆新防腐技术有限责任公司 | Oil pipe mud-scraping apparatus |
| CN210483646U (en) * | 2019-06-27 | 2020-05-08 | 中国石油天然气股份有限公司 | Oil scraping disc and oil scraping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112282700B (en) | 2022-04-12 |
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