CN110630216A - Drill rod mud scraper and using method thereof - Google Patents
Drill rod mud scraper and using method thereof Download PDFInfo
- Publication number
- CN110630216A CN110630216A CN201910979128.XA CN201910979128A CN110630216A CN 110630216 A CN110630216 A CN 110630216A CN 201910979128 A CN201910979128 A CN 201910979128A CN 110630216 A CN110630216 A CN 110630216A
- Authority
- CN
- China
- Prior art keywords
- drill rod
- rubber body
- mud scraper
- layer
- drill
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims abstract description 86
- 238000007790 scraping Methods 0.000 claims abstract description 11
- 229910000639 Spring steel Inorganic materials 0.000 claims description 17
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 34
- 230000008878 coupling Effects 0.000 abstract description 11
- 238000010168 coupling process Methods 0.000 abstract description 11
- 238000005859 coupling reaction Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
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)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of petroleum drilling, in particular to a drill rod mud scraper and a use method thereof, wherein a framework is arranged in a rubber body of the drill rod mud scraper, a drill rod coupling is propped open by the aid of the framework support in the drill rod coupling, the deformation of a rubber part is reduced, the deformation of the mud scraper caused by the external diameter size difference between the drill rod body and the drill rod coupling is prevented from influencing the mud scraping effect, the drill rod mud scraper is arranged below a drill plate and sleeved on a drill rod through a drill rod hole, then the mud scraper is blocked by a rotary plate square tile in the lifting process of the drill rod, a hollow cavity in the rubber body is also communicated with the drill rod hole, mud and oil stains on the surface of the drill rod are scraped during the drilling, the mud and oil stains on the surface of the drill rod are discharged from an overflow groove through the hollow cavity in the rubber body, the drilling fluid on the wall of the drill rod is cleaned, the corrosion, meanwhile, the drill rod mud scraper with the structure is simple to operate, simple and convenient to install and durable.
Description
Technical Field
The invention relates to the technical field of petroleum drilling, in particular to a drill rod mud scraper and a using method thereof.
Background
The novel drill rod mud scraper is a tool for scraping mud attached to the surface of a drill string in the process of tripping in drilling operation, and is mainly made of spring steel sheets serving as a framework and nitrile rubber. In the use process, the mud scraper with the corresponding specification can be replaced according to drill rods with different models. The environment of the drill floor is cleaner, and the clean drill column is easy to inspect scars and timely treat accidents and hidden dangers. Drilling rod mud scraper that the drilling team used now is because of using rubber materials preparation completely, and when the drilling operation scraped drilling rod outer drilling fluid, because of drilling rod body and drilling rod coupling external diameter difference 38mm, cause the mud scraper to warp easily when the drilling rod couples and lead to effective latus rectum can not satisfy and scrape drilling rod body drilling fluid. The invention provides an operation device and an operation method for scraping mud and oil stains on the surface of a drill rod during tripping, reducing the deformation of a rubber part due to the supporting assistance of an internal framework spring during the process of propping through a drill rod coupling, preventing a mud scraper from deforming to influence the mud scraping effect caused by the difference of the outer diameter sizes of a drill rod body and the drill rod coupling, and preventing sundries on a drill floor from falling into a wellhead.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the drill rod mud scraper and the use method thereof, and particularly has the characteristics of wear resistance, mud erosion resistance, simple operation, simple and convenient installation, durability, tight matching and thorough cleaning of the drill rod.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the utility model provides a drilling rod mud scraper, includes rubber body, this internal skeleton that is provided with of rubber, it has the overflow launder to open on rubber body's the lateral wall, and open at rubber body's middle part has the drilling rod hole, and rubber body is hollow bilayer structure, including first layer and second floor, overflow launder and this internal cavity intercommunication of rubber, this internal cavity of rubber still communicates with each other with the drilling rod hole.
The first layer and the second layer of the rubber body are both internally provided with frameworks.
The framework is made of spring steel sheets, and 4 circles of spring steel sheets are arranged in the first layer and the second layer of the rubber body.
The 4-ring spring steel sheets are arranged in the first layer and the second layer of the rubber body in a vulcanization mode.
The rubber body is of a disc structure with the diameter of 440mm, 4 overflow grooves are symmetrically formed in the circumferential side wall of the disc of the rubber body, and the 4 overflow grooves are communicated with a hollow cavity in the rubber body.
The whole thickness of rubber body be 75mm, the thickness of first layer and second floor is 25 mm.
The bottom surface of the disc structure of the rubber body is also provided with an overflow hole which is communicated with the hollow cavity in the rubber body.
The number of the overflow holes is 4, and the overflow holes are uniformly arranged on the bottom surface of the disc structure of the rubber body.
The rubber body is made of butadiene-acrylonitrile rubber.
The use method of the drill rod mud scraper comprises any one of the drill rod mud scraper, and comprises the following steps
The method comprises the following steps: firstly, mounting a mud scraper below a drill plate, and sleeving the mud scraper on a drill rod through a drill rod hole;
step two: on the basis of the step one, the mud scraper is blocked by the rotary table square tile in the lifting process of the drill rod;
step three: and on the basis of the second step, scraping mud oil stains on the surface of the drill rod during tripping.
The invention has the beneficial effects that:
compared with the prior art, the invention arranges the framework in the rubber body of the drill rod mud scraper, the internal framework support of the drill rod coupling props open to reduce the deformation of the rubber piece and prevent the deformation of the mud scraper caused by the difference of the external diameters of the drill rod body and the drill rod coupling from influencing the mud scraping effect, the drill rod mud scraper is arranged under the drill plate and sleeved on the drill rod through the drill rod hole, then the rotary table square tile blocks the mud scraper in the lifting process of the drill rod, the hollow cavity in the rubber body is also communicated with the drill rod hole, mud oil stains on the surface of the drill rod are scraped in the lifting process, the mud oil stains on the surface of the drill rod are discharged from the overflow groove through the hollow cavity in the rubber body, the mud collection is facilitated, the sundries on the drill floor are prevented from falling to the wellhead, the drilling fluid can be prevented from returning from the drilling well, the drilling fluid on the wall of the drill rod is cleaned, the corrosion to the metal, the drilling rod mud scraper with the structure is convenient to operate, safe in guarantee, simple and convenient to install and durable.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic front view of the mud scraper of the present invention.
Fig. 2 is a schematic back structure view of the mud scraper of the present invention.
Fig. 3 is a schematic side view of the scraper of the present invention.
Fig. 4 is a schematic cross-sectional structure of the scraper of the present invention.
In the figure: 1-rubber body, 2-spring steel sheet, 3-overflow groove, 4-drill rod hole, 5-first layer, 6-second layer and 7-overflow hole.
Detailed Description
Example 1:
referring to fig. 1, 2 and 3, which are schematic structural views of an embodiment 1 of the present invention, a drill rod mud scraper includes a rubber body 1, a framework is disposed in the rubber body 1, an overflow groove 3 is formed on a side wall of the rubber body 1, a drill rod hole 4 is formed in the middle of the rubber body 1, the rubber body 1 is a hollow double-layer structure and includes a first layer 5 and a second layer 6, the overflow groove 3 is communicated with a hollow cavity in the rubber body 1, and the hollow cavity in the rubber body 1 is further communicated with the drill rod hole 4.
In actual use: the framework is arranged in a rubber body 1 of the drill rod mud scraper, the drill rod coupling is propped open by the aid of the internal framework during drilling, deformation of a rubber part is reduced, the mud scraper is prevented from being deformed due to the difference of the outer diameters of the drill rod body and the drill rod coupling to influence the mud scraping effect, the drill rod mud scraper is arranged below a drill plate and sleeved on a drill rod through a drill rod hole 4, then the mud scraper is blocked by a rotary table square tile during lifting the drill rod, a hollow cavity in the rubber body 1 is also communicated with the drill rod hole 4, mud oil stains on the surface of the drill rod are scraped during tripping, the mud oil stains on the surface of the drill rod are discharged from an overflow groove 3 through the hollow cavity in the rubber body 1, mud collection is facilitated, sundries on a drill floor are prevented from falling to a wellhead, drilling fluid can be prevented from returning out of a drilling well, drilling fluid on the wall of the drill rod is removed, corrosion to metals can, the safety is guaranteed, and the drill rod mud scraper using the structure is simple to operate, simple and convenient to install and durable.
Example 2:
referring to fig. 4, the present embodiment is different from embodiment 1 in that: the first layer 5 and the second layer 6 of the rubber body 1 are both internally provided with frameworks.
Preferably, the framework is a spring steel sheet 2, and 4 circles of spring steel sheets 2 are arranged in the first layer 5 and the second layer 6 of the rubber body 1.
In actual use: all be provided with the skeleton in 5 the first floor of rubber body 1 and the second floor 6, the skeleton is spring steel sheet 2, all is provided with 4 rings of spring steel sheet 2 in 5 the first floor of rubber body 1 and the second floor 6, can fall to the minimum with the harm that the drilling rod skew caused to the mud scraper, makes 1 life of rubber body increase simultaneously, and spring steel sheet 2 chooses for use thickness 0.8mm during in-service use, and the width is 20 mm's spring steel sheet.
Example 3:
the present embodiment is different from embodiment 2 in that: the 4-turn spring steel sheets 2 are arranged in the first layer 5 and the second layer 6 of the rubber body 1 in a vulcanization mode.
In actual use: all adopt the mode setting of vulcanizing 4 rings of spring steel sheet 2 to form a whole use in the first layer 5 and the second floor 6 of rubber body 1 and scrape the mud best effect and can not make drilling rod body and drilling rod coupling external diameter size appear to differ simultaneously and cause the scraper to warp and influence and scrape the mud effect, and concrete spring steel sheet 2 vulcanizes the rubber the inside in the first layer 5 and the second floor 6 of rubber body 1 with the mode of 4 rings of circling respectively.
Example 4:
referring to fig. 3, the present embodiment is different from embodiment 1 in that: the rubber body 1 is of a disc structure with the diameter of 440mm, 4 overflow grooves 3 are symmetrically formed in the circumferential side wall of the disc of the rubber body 1, and the 4 overflow grooves 3 are communicated with a hollow cavity in the rubber body 1.
In actual use: the rubber body 1 with the disc structure and the diameter of 440mm is suitable for the size used in the actual field, the using effect is best, 4 overflow grooves 3 are symmetrically formed in the circumferential side wall of the disc of the rubber body 1, the 4 overflow grooves 3 are communicated with the hollow cavity in the rubber body 1, and mud oil dirt scraped from the surface of a drill rod is discharged from the overflow grooves 3 through the hollow cavity in the rubber body 1.
Example 5:
the present embodiment is different from embodiment 1 in that: the whole thickness of the rubber body 1 is 75mm, and the thicknesses of the first layer 5 and the second layer 6 are both 25 mm.
In actual use: in actual use, the whole thickness of the rubber body 1 is 75mm, the thickness of the first layer 5 and the thickness of the second layer 6 are both 25mm, and the size of the hole 4 of the drill rod is the optimal size for mud scraping, wherein the size of the hole 4 of the drill rod is 3-1/2 ″, the size of the hole 4 of the drill rod isWhen the size of the drill rod is 5', the size of the drill rod hole 4 is
Example 6:
referring to fig. 2, the present embodiment is different from embodiment 4 in that: the bottom surface of the disc structure of the rubber body 1 is also provided with an overflow hole 7, and the overflow hole 7 is communicated with a hollow cavity in the rubber body 1.
It is preferable that: the number of the overflow holes 7 is 4, and the overflow holes are uniformly arranged on the bottom surface of the disc structure of the rubber body 1.
In actual use: the overflow hole 7 is opened there are 4, evenly set up the bottom surface at 1 disc structure of rubber body, overflow hole 7 is located the axis of opening overflow launder 3, the mud greasy dirt of scraping off on the drilling rod surface can also be arranged outward through overflow hole 7 when the mud greasy dirt on drilling rod surface is very much from overflow launder 3 discharge through the cavity in the rubber body 1, guarantee the cleanness of drilling rod, the cooperation of the drilling rod mud scraper that uses this structure is tight, clean up thoroughly to the drilling rod.
Example 7:
the present embodiment is different from embodiment 1 in that: the rubber body 1 is made of butadiene-acrylonitrile rubber.
In actual use: the material adopted by the rubber body 1 is nitrile rubber which has excellent oil resistance, good chemical stability and excellent physical and mechanical properties, so that the drill rod mud scraper manufactured by using the nitrile rubber is wear-resistant, slurry erosion-resistant and durable.
Example 8:
a method of using a drill pipe scraper, comprising the drill pipe scraper of any one of embodiments 1-7, comprising the steps of
The method comprises the following steps: firstly, a mud scraper is arranged below a drill plate and sleeved on a drill rod through a drill rod hole 4;
step two: on the basis of the step one, the mud scraper is blocked by the rotary table square tile in the lifting process of the drill rod;
step three: on the basis of the second step, when the drill is started or stopped, mud oil stains on the surface of the drill rod are scraped, the mud oil stains are discharged from the overflow groove 3 through the hollow cavity in the rubber body 1, and meanwhile, when the mud oil stains on the surface of the drill rod are very much, the mud oil stains can be discharged outside through the overflow hole 7, so that the cleaning of the drill rod is guaranteed, the drill rod mud scraper adopting the structure is tightly matched, and the drill rod is cleaned completely.
The mud scraper for the drill rod is optimal in mud scraping effect, simple to install and durable.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is within the scope of the claims.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. A drill rod mud scraper is characterized in that: the rubber body (1) is internally provided with a framework, the side wall of the rubber body (1) is provided with an overflow groove (3), the middle part of the rubber body (1) is provided with a drill rod hole (4), the rubber body (1) is of a hollow double-layer structure and comprises a first layer (5) and a second layer (6), the overflow groove (3) is communicated with a hollow cavity in the rubber body (1), and the hollow cavity in the rubber body (1) is also communicated with the drill rod hole (4).
2. The drill pipe mud scraper as claimed in claim 1, wherein: the rubber body (1) is characterized in that frameworks are arranged in the first layer (5) and the second layer (6).
3. The drill pipe mud scraper as claimed in claim 2, wherein: the framework is a spring steel sheet (2), and 4 rings of spring steel sheets (2) are arranged in the first layer (5) and the second layer (6) of the rubber body (1).
4. A drill rod mud scraper according to claim 3, wherein: the 4-ring spring steel sheets (2) are arranged in the first layer (5) and the second layer (6) of the rubber body (1) in a vulcanization mode.
5. The drill pipe mud scraper as claimed in claim 1, wherein: the rubber body (1) is of a disc structure with the diameter of 440mm, 4 overflow grooves (3) are symmetrically formed in the circumferential side wall of the disc of the rubber body (1), and the 4 overflow grooves (3) are communicated with a hollow cavity in the rubber body (1).
6. The drill pipe mud scraper as claimed in claim 1, wherein: the whole thickness of the rubber body (1) is 75mm, and the thicknesses of the first layer (5) and the second layer (6) are both 25 mm.
7. The drill pipe mud scraper as claimed in claim 5, wherein: the bottom surface of the disc structure of the rubber body (1) is also provided with an overflow hole (7), and the overflow hole (7) is communicated with a hollow cavity in the rubber body (1).
8. The drill pipe mud scraper of claim 7, wherein: the number of the overflow holes (7) is 4, and the overflow holes are uniformly arranged on the bottom surface of the disc structure of the rubber body (1).
9. The drill pipe mud scraper as claimed in claim 1, wherein: the rubber body (1) is made of butadiene-acrylonitrile rubber.
10. A method of using a drill pipe scraper comprising a drill pipe scraper as claimed in any one of claims 1 to 8, the method comprising: comprises the following steps
The method comprises the following steps: firstly, a mud scraper is arranged below a drill plate and sleeved on a drill rod through a drill rod hole (4);
step two: on the basis of the step one, the mud scraper is blocked by the rotary table square tile in the lifting process of the drill rod;
step three: and on the basis of the second step, scraping mud oil stains on the surface of the drill rod during tripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979128.XA CN110630216A (en) | 2019-10-15 | 2019-10-15 | Drill rod mud scraper and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979128.XA CN110630216A (en) | 2019-10-15 | 2019-10-15 | Drill rod mud scraper and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110630216A true CN110630216A (en) | 2019-12-31 |
Family
ID=68975041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910979128.XA Pending CN110630216A (en) | 2019-10-15 | 2019-10-15 | Drill rod mud scraper and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110630216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441746A (en) * | 2020-04-09 | 2020-07-24 | 熊勇 | Drill rod mud scraper for quick tripping under complex well conditions and mud scraping method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU578442A1 (en) * | 1975-05-11 | 1977-10-30 | Всесоюзный Нефтяной Научно-Исследовательский Институт По Технике Безопастности | Scraper for cleaning drill pipes |
| SU747981A1 (en) * | 1978-07-31 | 1980-07-15 | Всесоюзный нефтяной научно-исследовательский институт по технике безопасности | Scraper for cleaning drill pipes |
| US4285215A (en) * | 1976-10-18 | 1981-08-25 | Roeder George K | Rotary table and kelly guard |
| CN2403892Y (en) * | 1999-12-16 | 2000-11-01 | 辽河石油勘探局钻采技术服务公司 | Diameter-variable rubber plug |
| US20020023782A1 (en) * | 1995-08-30 | 2002-02-28 | Robert Patrick Appleton | Friction-reducing drill pipe component |
| CN2791242Y (en) * | 2005-05-12 | 2006-06-28 | 华北石油廊坊华星能源设备厂 | Drill-pipe external-wall mud scraper |
| CN201087697Y (en) * | 2007-08-28 | 2008-07-16 | 马志 | Drilling rod mud scraping device |
| CN201723204U (en) * | 2010-06-30 | 2011-01-26 | 江苏扬州合力橡胶制品有限公司 | Rubber drill rod mud scraping disk |
| CN203097799U (en) * | 2013-01-10 | 2013-07-31 | 中国石油天然气股份有限公司 | Inflatable oil scraping self-sealing well sealer |
| CN105464622A (en) * | 2015-11-02 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Wellhead tubing outer wall oil wiper |
| CN105696949A (en) * | 2014-11-25 | 2016-06-22 | 中国石油化工股份有限公司 | Moving type rotary centering guide |
| CN108412460A (en) * | 2018-03-22 | 2018-08-17 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of device of wellhead anti-falling |
| CN109372461A (en) * | 2018-11-27 | 2019-02-22 | 中国石油集团川庆钻探工程有限公司 | Method for resetting wellhead device out of control of blowout |
| CN211115924U (en) * | 2019-10-15 | 2020-07-28 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drilling rod mud scraper |
-
2019
- 2019-10-15 CN CN201910979128.XA patent/CN110630216A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU578442A1 (en) * | 1975-05-11 | 1977-10-30 | Всесоюзный Нефтяной Научно-Исследовательский Институт По Технике Безопастности | Scraper for cleaning drill pipes |
| US4285215A (en) * | 1976-10-18 | 1981-08-25 | Roeder George K | Rotary table and kelly guard |
| SU747981A1 (en) * | 1978-07-31 | 1980-07-15 | Всесоюзный нефтяной научно-исследовательский институт по технике безопасности | Scraper for cleaning drill pipes |
| US20020023782A1 (en) * | 1995-08-30 | 2002-02-28 | Robert Patrick Appleton | Friction-reducing drill pipe component |
| CN2403892Y (en) * | 1999-12-16 | 2000-11-01 | 辽河石油勘探局钻采技术服务公司 | Diameter-variable rubber plug |
| CN2791242Y (en) * | 2005-05-12 | 2006-06-28 | 华北石油廊坊华星能源设备厂 | Drill-pipe external-wall mud scraper |
| CN201087697Y (en) * | 2007-08-28 | 2008-07-16 | 马志 | Drilling rod mud scraping device |
| CN201723204U (en) * | 2010-06-30 | 2011-01-26 | 江苏扬州合力橡胶制品有限公司 | Rubber drill rod mud scraping disk |
| CN203097799U (en) * | 2013-01-10 | 2013-07-31 | 中国石油天然气股份有限公司 | Inflatable oil scraping self-sealing well sealer |
| CN105696949A (en) * | 2014-11-25 | 2016-06-22 | 中国石油化工股份有限公司 | Moving type rotary centering guide |
| CN105464622A (en) * | 2015-11-02 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Wellhead tubing outer wall oil wiper |
| CN108412460A (en) * | 2018-03-22 | 2018-08-17 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of device of wellhead anti-falling |
| CN109372461A (en) * | 2018-11-27 | 2019-02-22 | 中国石油集团川庆钻探工程有限公司 | Method for resetting wellhead device out of control of blowout |
| CN211115924U (en) * | 2019-10-15 | 2020-07-28 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drilling rod mud scraper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441746A (en) * | 2020-04-09 | 2020-07-24 | 熊勇 | Drill rod mud scraper for quick tripping under complex well conditions and mud scraping method thereof |
| CN111441746B (en) * | 2020-04-09 | 2021-04-16 | 青岛中瑞威飞海洋装备制造有限公司 | Drill rod mud scraper for quick tripping under complex well conditions and mud scraping method thereof |
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