CN108222886A - A kind of wax scraping apparatus - Google Patents
A kind of wax scraping apparatus Download PDFInfo
- Publication number
- CN108222886A CN108222886A CN201611157632.4A CN201611157632A CN108222886A CN 108222886 A CN108222886 A CN 108222886A CN 201611157632 A CN201611157632 A CN 201611157632A CN 108222886 A CN108222886 A CN 108222886A
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- Prior art keywords
- wax
- scraping
- transmission shaft
- component
- motor
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Links
- 238000007790 scraping Methods 0.000 title claims abstract description 76
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 239000001993 wax Substances 0.000 claims description 104
- 239000012188 paraffin wax Substances 0.000 claims description 55
- 238000005520 cutting process Methods 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 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
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)
- Lubricants (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of wax scraping apparatus, belong to Well wax scraper technical field.Described device includes：Motor (1), the cable wire component (2) being connect with the motor (1) and the coaxially connected runner assembly (3) being rotated about axis of the motor (1)；The runner assembly (3) scrapes wax component (302) including transmission shaft (301) and with the coaxially connected maximum gauge of the transmission shaft (301) more than the transmission shaft (301) diameter.The present invention realizes the removing to tube inner wall attachment, and make wax scraping apparatus during down or up, stickum is not hindered in by oil pipe, it is not easy to card resistance phenomenon occur by the rotation of runner assembly.
Description
Technical field
The present invention relates to Well wax scraper technical field, more particularly to a kind of wax scraping apparatus.
Background technology
When to Gao Ning, high thick oil extraction, since crude oil property is poor, containing wax and asphaltenes-colloid compared with
It is more, due to stickums such as the wax being much precipitated and colloids as crude oil production can be attached in oil well on tube inner wall,
Wax deposition phenomenon is commonplace, oil flow channel can be caused to reduce when wax deposition is serious, and oil pipe blocking, the oil well underproduction is caused even to stop production.
It needs in time to remove the stickum being attached on oil well oil conduit inner wall, be realized by being put into wax scraping apparatus into oil pipe,
Thus the problem of involving how to more effectively remove the stickum on tube inner wall.
The wax scraping apparatus of the prior art is usually internal to install dismountable paraffin scraper, the weighted lever on weighted lever
The cylindrical steel body of filling metallic lead, the paraffin scraper are usually hollow cylinder, and its edge is arc.Utilize steel wire
Paraffin scraper and weighted lever with paraffin hoist are connect, weighted lever and paraffin scraper are lowered into pit shaft oil pipe, pass through exacerbation
The gravity of bar drives paraffin scraper to decline, and the pulling force effect of steel wire is made on weighted lever and paraffin scraper by paraffin hoist
It rises, under the up and down reciprocatingly effect of paraffin scraper, passes through the upper of the edge of paraffin scraper and the stickum on pit shaft tube inner wall
Lower shear action removes the stickum on tube inner wall, since the diameter of paraffin scraper is fixed, to tube inner wall
In scale removal process, the paraffin scraper diameter specifications for initially lowering into pit shaft should not be too large by the limitation of oil pipe inner flow passage, treat clear
After going out larger runner, the paraffin scraper for promoting taking-up paraffin scraper replacement larger diameter specification is needed to lower into pit shaft again, is passed through
The up and down reciprocatingly effect of repeated multiple times replacement diameter gradually increased paraffin scraper and paraffin scraper, realizing will be on tube inner wall
Stickum removal is clean.
In the implementation of the present invention, inventor has found that the prior art has at least the following problems：
Since the decline of wax scraping apparatus is mainly by the effect of its own gravity, paraffin cutting is being carried out to the more oil pipe of wax deposition
When, wax scraping apparatus during declining easily by oil pipe in stickum obstruction and under can not being further continued for by its own gravity
Scheduled depth is dropped to, wax removal work is caused to be difficult to complete；Simultaneously easily so that card resistance, i.e. wax scraping apparatus quilt occurs in wax scraping apparatus
It has been stuck in oil pipe, has risen or decline the phenomenon that all relatively difficult, when the resistance that appearance above carries wax scraping apparatus is excessive, very may be used
It can break steel wire, paraffin scraper falls into shaft bottom.
Invention content
In order to solve the above problem of the prior art, an embodiment of the present invention provides a kind of wax scraping apparatus.The technical side
Case is as follows：
A kind of wax scraping apparatus, described device include：Motor, the cable wire component being connect with the motor and institute
State the coaxially connected runner assembly being rotated about axis of motor；
The runner assembly includes transmission shaft and is more than the transmission with the coaxially connected maximum gauge of the transmission shaft
Shaft diameter scrapes wax component, and the maximum gauge of the wax scraping apparatus is less than the internal diameter of pit shaft oil pipe.
Specifically, the wax component of scraping includes：Cylindrical ontology and the wax spatula on the body outer wall
Piece.
Specifically, the paraffin cutting blade include with the ontology is bonded first while, with described first while vertical second
While and during third, with described second while and the 4th side that connect of when third.
Specifically, described second while length be more than the third while length.
Specifically, the maximum gauge scrapes wax component more than the transmission shaft diameter, specially described paraffin cutting blade
The sum of diameter of second side and ontology is more than the diameter of the transmission shaft.
Specifically, the intersection point of the described second intersection point while with described first and third while with first is not same
On one straight line parallel with axis.
Preferably, the paraffin cutting blade is 2, is uniformly distributed on the ontology.
Preferably, the thickness of the paraffin cutting blade is 2~3mm.
Preferably, the number for scraping wax component is 1 or more, the number of the transmission shaft and for scraping wax component
Number is consistent.
Preferably, the number for scraping wax component is 1~3.
Specifically, the number for scraping wax component is 2 or more, and each two is connected between scraping wax component by the transmission shaft
It connects.
Specifically, the wax component of scraping passes through screwed connection with the transmission shaft.
Specifically, the number for scraping wax component is 2 or more, the maximum for scraping wax component far from the motor
Diameter is gradually less than the maximum gauge for scraping wax component close to the motor.
Specifically, the cable wire component includes the cable positioned at center and the steel wire around the cable.
Specifically, the steel wire surrounds the cable outer wall completely.
Specifically, the wax scraping apparatus further includes guide head.
Specifically, the cable wire component is connect by cable connector with the motor.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Electric current is led to by motor by cable wire component, motor converts electrical energy into mechanical energy, can make and institute
It states the coaxially connected runner assembly of motor to be rotated around its axis, so as to which the wax component of scraping in runner assembly is also done around axis
Rotation, due to scrape wax component maximum gauge be more than transmission shaft diameter, the wax scraping apparatus is passed through into cable wire component
After lowering into pit shaft oil pipe, when runner assembly pivoting, on the outer wall and tubing wall by scraping wax component
Stickum contact carries out rotary cutting, realizes and removes the stickum on tubing wall, and the present invention passes through runner assembly
Rotation cause wax scraping apparatus during down or up, stickum is not hindered in by oil pipe, so as to be not easy to send out
Raw card resistance phenomenon.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is wax scraping apparatus structure diagram provided in an embodiment of the present invention；
Fig. 2 is paraffin cutting component structure diagram provided in an embodiment of the present invention；
Fig. 3 is the plane outspread drawing provided in an embodiment of the present invention for scraping wax component.
Wherein, reference numeral is：
1st, motor；2nd, cable wire component；3rd, runner assembly；4th, guide head；5th, cable connector；
201st, cable；202nd, steel wire；301st, transmission shaft；302nd, wax component is scraped；302a, ontology；302b, paraffin cutting blade；
302b1, the first side；302b2, the second side；302b3, third side；302b4, the 4th side.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The present invention provides a kind of wax scraping apparatus, referring to Fig. 1, including：Motor 1, the electricity being connect with the motor 1
Cable steel wire component 2 and the coaxially connected runner assembly 3 being rotated about axis of the motor 1；
The runner assembly 3 includes transmission shaft 301 and the maximum gauge coaxially connected with the transmission shaft 301 is more than
301 diameter of transmission shaft scrapes wax component 302.
Electric current is led to motor 1 by the present invention by cable wire component 2, and motor 1 converts electrical energy into mechanical energy, can
So that the runner assembly 3 coaxially connected with the motor 1 is rotated around its axis, so as to the paraffin cutting group in runner assembly 3
Part 302 also does the rotation around axis, since the maximum gauge for scraping wax component 302 is more than the diameter of transmission shaft 301, by the paraffin cutting
After device is lowered by cable wire component 2 in pit shaft oil pipe, when 3 pivoting of runner assembly, pass through paraffin cutting
The outer wall of component 302 is contacted with the stickum on tubing wall carries out rotary cutting, realizes the goo on tubing wall
Matter removes, and the present invention during down or up, is not glued by the rotation wax scraping apparatus of runner assembly 3 in by oil pipe
The obstruction of property substance, so as to which card resistance phenomenon be less likely to occur.
Specifically, referring to Fig. 2, the wax component 302 of scraping includes：Cylindrical ontology 302a and positioned at the ontology
Paraffin cutting blade 302b on 302a outer walls.Wherein, the paraffin cutting blade 302b includes the first side being bonded with the ontology
302b1, with described first while 302b1 it is vertical second while 302b2 and third while 302b3, with described second while 302b2 and
Third 302b4 in the 4th of 302b3 connections.The first side 302b1 of paraffin cutting blade 302b for welding or passes through spiral shell with ontology
Nail is fixedly connected, and the present invention alleviates paraffin cutting in a manner that paraffin cutting blade 302 is connect with the ontology 302a of central cylindrical
Resistance of the component 302 in pit shaft oil pipe, during rotation, electronic function preferably drives runner assembly 3 to be revolved around axis
Turn.
Further, described second while 302b2 length be more than the third while 302b3 length, be referring to Fig. 3, Fig. 3
The front view of wax component is scraped, the 4th side 302b4 is the lines of even transition, that is to say, that from second when 302b2 is to third
The length of 302b3 paraffin cutting blades is gradually reduced, then, maximum gauge described above is more than the paraffin cutting of 301 diameter of transmission shaft
The sum of component 302, the diameter of the second side 302b2 and ontology 302a of specially described paraffin cutting blade 302b is more than the transmission shaft
301 diameter.It can, when runner assembly 3 rotates, to scrape the big part of the diameter of the transmission shaft 301 of ratio on wax component 302,
The part of outer wall on namely paraffin cutting blade 302b more than transmission shaft 301 can be contacted with the stickum on tube inner wall,
When paraffin cutting blade 302b is rotated about the axis, under the influence of centrifugal force so that stickum is peeled off from tube inner wall.
The present invention does not make specific restriction to the number and thickness of paraffin cutting blade 302b, according to actual conditions Crude Oil
Physical property, may be used different-thickness, different number paraffin cutting blade 302b, paraffin cutting blade 302b is preferably in the embodiment of the present invention
It 2, is uniformly distributed on the ontology 302a；And the thickness of the paraffin cutting blade 302b is preferably 2~3mm.Referring to Fig. 3,
Fig. 3 is the plane outspread drawing for scraping wax component, it can be seen that described second while 302b2 with described first while 302b1 intersection point and
The intersection point of third 302b1 when 302b3 is with first is not on the same straight line parallel with axis, that is to say, that the 4th side
The Origin And Destination of 302b4 is not on the same straight line parallel with axis；So that paraffin cutting blade 302b forms itself around this
The form of body 302a rotatable connections, that is, spiral helicine structure is formed, such a construction reduces paraffin cutting blade 302b to revolve
Contact the resistance of generation during turning with stickum in oil pipe, it, can be with while when stickum is peeled off from tube inner wall
Knife wall along paraffin cutting blade 302b is fallen, and without being accumulated again on knife wall, the knife wall refers to paraffin cutting blade 302b
The face that is surrounded of four sides.
In embodiment described above, the number for scraping wax component 302 is 1 or more, of the transmission shaft 301
Number is consistent with the number for scraping wax component 302.The embodiment of the present invention is not to scraping the number of wax component 302 and transmission shaft 301
Specific restriction is made, is not many oil pipes for attachment stickum, selects 1 of respective diameters to scrape wax component 302
It realizes and removes stickum totally, but the oil pipe that the stickum object for attachment is more, then need the paraffin cutting group of 2 or more
Part, it is preferable that the number for scraping wax component 302 is 1~3, when the number for scraping wax component 302 is 2 or more, often
It scrapes for two and is connected by the transmission shaft 301 between wax component 302, and described to scrape wax component 302 logical with the transmission shaft 301
Cross screwed connection.Referring to Fig. 1, motor 1 first is connect with the wax component 302 of scraping near motor 1 by transmission shaft 301,
Then it is next to scrape wax component 302 and upper one is scraped and connected again by transmission shaft 301 between wax component 302, connecting shaft can be formed
Entire runner assembly 3, when motor 1 drives first transmission shaft 301 connected to it to rotate, first transmission shaft 301
First can be driven to scrape wax component 302 to rotate, while first is scraped wax component 302 and coupled second is driven to be driven shaft rotation
It is dynamic, it correspondingly drives second to scrape wax component 302 and rotates, then remaining all runner assemblies 3 is driven to rotate successively.
Specifically, when needing 2 or more when scraping wax component, wax component 302 is scraped most described in far from the motor 1
Major diameter is gradually less than the maximum gauge for scraping wax component 302 close to the motor 1.Those skilled in the art can manage
Solution, the wax component 302 of scraping far from the motor 1 is to enter oil pipe at first, more for attachment stickum
Oil pipe, at first into oil pipe to the attachment on its inner wall cleared up scrape 302 diameter of wax component should not be excessive, diameter mistake
Conference causes the resistance being subject to during rotation excessive, then has opened a minor diameter in the wax component 302 of scraping for entering oil pipe at first
Channel after, behind gradually increase close to 302 diameter of wax component of scraping of motor 1, that is, entering the straight of oil pipe at first
The diameter opened channel, widen channel on the basis of the channel scraped wax component 302 and opened of diameter minimum again in layer is realized
To the purpose removed from level to level of the stickum of tube inner wall every time so that staff does not need to take out wax scraping apparatus
It replaces the wax scraping apparatus of diameter bigger, and can once realize the stickum that will adhere in tube inner wall and disposably remove
Totally.
It should be noted that the maximum gauge for scraping wax component 302 described above refers to the of the paraffin cutting blade 302b
The sum of diameter of two side 302b2 and ontology 302a, referring to Fig. 2, the D shown in figure is the maximum gauge for scraping wax component 302.
Preferably, the cable wire component 2 is included positioned at the cable 201 at center and around the cable
Steel wire 202, the steel wire 202 surround 201 outer wall of cable completely.The cable wire component 2 by cable connector 5 with
The motor 1 connects, and cable 201 is for being powered to generator, by steel wire strand 202 by 201 entire outer wall of cable
The steel wire enclosure to form an armor is surrounded, the cable inside it can be protected when paraffin hoist is wound lifting to steel wire
It is not damaged.
As a preferred embodiment, the wax scraping apparatus of the embodiment of the present invention further includes guide head 4, and guide head is ellipse,
It is connect by screw thread with runner assembly 3 so that wax scraping apparatus can preferably enter oil pipe.
The embodiment of the present invention when in use, by using the paraffin hoist with function of supplying power and cable wire component 2
One end connects, and the other end of cable wire component 2 is connect by cable connector 5 with motor 1, then selects the transmission needed
It is gradually less than by axis 301 and the number for scraping wax component 302 according to the maximum gauge for scraping wax component 302 far from motor 1
Close to the mode of the maximum gauge for scraping wax component 302 of motor 1, by transmission shaft 301 and scrape wax component 302 and pass sequentially through screw thread
Connection is finally scraped 302 bottom of wax component by what guide head 4 was connected to lowest part, wax scraping apparatus is lowered into oil pipe, when clear
After wax winch provides electric current for motor 1, runner assembly 3 drives entire wax scraping apparatus to continue to decline arrival while rotation
Scheduled depth after realization all removes the stickum on tube inner wall totally, passes through paraffin hoist and drives cable steel
Silk component 2 wax scraping apparatus is above carried or while runner assembly 3 is rotated further on extract flowline.
The alternative embodiment that any combination forms the disclosure may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of wax scraping apparatus, which is characterized in that described device includes：Motor (1), the electricity being connect with the motor (1)
Cable steel wire component (2) and the coaxially connected runner assembly (3) being rotated about axis of the motor (1)；
The runner assembly (3) is big including transmission shaft (301) and the maximum gauge coaxially connected with the transmission shaft (301)
Wax component (302) is scraped in the transmission shaft (301) diameter.
2. wax scraping apparatus according to claim 1, which is characterized in that the wax component (302) of scraping includes：Cylindrical sheet
Body (302a) and the paraffin cutting blade (302b) on the ontology (302a) outer wall.
3. wax scraping apparatus according to claim 2, which is characterized in that the paraffin cutting blade (302b) including with the ontology
Fitting first while (302b1), with described first while (302b1) it is vertical second in (302b2) and third while (302b3),
With the described second the 4th side (302b4) that (302b3) is connect in (302b2) and third.
4. wax scraping apparatus according to claim 3, which is characterized in that the length of second side (302b2) is more than described
The length on third side (302b3).
5. wax scraping apparatus according to claim 4, which is characterized in that the maximum gauge is more than the transmission shaft (301)
Diameter scrapes wax component (302), the second side (302b2) of specially described paraffin cutting blade (302b) and the diameter of ontology (302a)
The sum of be more than the transmission shaft (301) diameter.
6. wax scraping apparatus according to claim 5, which is characterized in that described second when (302b2) is with described first
The intersection point of (302b1) and third intersection point of (302b1) when (302b3) is with first are parallel with axis not in same
On straight line.
7. wax scraping apparatus according to claim 6, which is characterized in that the paraffin cutting blade (302b) is 2, is uniformly distributed
In on the ontology (302a).
8. wax scraping apparatus according to claim 7, which is characterized in that the thickness of the paraffin cutting blade (302b) for 2~
3mm。
9. wax scraping apparatus according to claim 8, which is characterized in that the number for scraping wax component (302) for 1 with
On, the number of the transmission shaft (301) is consistent with the number for scraping wax component (302).
10. wax scraping apparatus according to claim 9, which is characterized in that the number for scraping wax component (302) for 2 with
On, the maximum gauge for scraping wax component (302) far from the motor (1) is gradually less than close to the motor (1)
The maximum gauge for scraping wax component (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157632.4A CN108222886B (en) | 2016-12-15 | 2016-12-15 | Wax scraping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157632.4A CN108222886B (en) | 2016-12-15 | 2016-12-15 | Wax scraping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222886A true CN108222886A (en) | 2018-06-29 |
| CN108222886B CN108222886B (en) | 2024-05-28 |
Family
ID=62650323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157632.4A Active CN108222886B (en) | 2016-12-15 | 2016-12-15 | Wax scraping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222886B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114026U (en) * | 1992-02-21 | 1992-08-26 | 大庆石油管理局第二采油厂 | Joggled wax scrper |
| RU2168612C1 (en) * | 2000-10-19 | 2001-06-10 | Общество с ограниченной ответственностью фирма "Каскад" | Method of provision and maintenance of serviceability condition of tubing flow area in development well and cleaning device |
| US6808019B1 (en) * | 2002-09-06 | 2004-10-26 | John F. Mabry | Sucker rod guide and paraffin scraper for oil wells |
| CN201857938U (en) * | 2010-11-11 | 2011-06-08 | 中国石油天然气集团公司 | Oil tube scraper for steel wire operation |
| CN202391386U (en) * | 2011-11-28 | 2012-08-22 | 中国石油集团长城钻探工程有限公司 | Combination clearing device for seriously-formed scale of oil-water well drivepipe |
| CN204827373U (en) * | 2015-03-13 | 2015-12-02 | 成都大漠石油机械有限公司 | Return oil collecting pipe inner wall and scrape cutter |
| CN205638441U (en) * | 2016-04-27 | 2016-10-12 | 中国石油天然气股份有限公司 | Jack rabbit |
| CN206376826U (en) * | 2016-12-15 | 2017-08-04 | 中国石油天然气股份有限公司 | A kind of wax scraping apparatus |
-
2016
- 2016-12-15 CN CN201611157632.4A patent/CN108222886B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114026U (en) * | 1992-02-21 | 1992-08-26 | 大庆石油管理局第二采油厂 | Joggled wax scrper |
| RU2168612C1 (en) * | 2000-10-19 | 2001-06-10 | Общество с ограниченной ответственностью фирма "Каскад" | Method of provision and maintenance of serviceability condition of tubing flow area in development well and cleaning device |
| US6808019B1 (en) * | 2002-09-06 | 2004-10-26 | John F. Mabry | Sucker rod guide and paraffin scraper for oil wells |
| CN201857938U (en) * | 2010-11-11 | 2011-06-08 | 中国石油天然气集团公司 | Oil tube scraper for steel wire operation |
| CN202391386U (en) * | 2011-11-28 | 2012-08-22 | 中国石油集团长城钻探工程有限公司 | Combination clearing device for seriously-formed scale of oil-water well drivepipe |
| CN204827373U (en) * | 2015-03-13 | 2015-12-02 | 成都大漠石油机械有限公司 | Return oil collecting pipe inner wall and scrape cutter |
| CN205638441U (en) * | 2016-04-27 | 2016-10-12 | 中国石油天然气股份有限公司 | Jack rabbit |
| CN206376826U (en) * | 2016-12-15 | 2017-08-04 | 中国石油天然气股份有限公司 | A kind of wax scraping apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108222886B (en) | 2024-05-28 |
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