CN207177833U - Paraffin removal device - Google Patents

Paraffin removal device Download PDF

Info

Publication number
CN207177833U
CN207177833U CN201721002537.7U CN201721002537U CN207177833U CN 207177833 U CN207177833 U CN 207177833U CN 201721002537 U CN201721002537 U CN 201721002537U CN 207177833 U CN207177833 U CN 207177833U
Authority
CN
China
Prior art keywords
wax
bodies
removal device
scraper
paraffin
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.)
Active
Application number
CN201721002537.7U
Other languages
Chinese (zh)
Inventor
朱轶
尹怀润
苏东坡
干华文
高春海
罗慎超
王宏
杨文明
杨小华
晏楠
赵英
崔航波
陈毅
王霞
周跃宗
张红莉
张重愿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
Original Assignee
Petrochina Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Petrochina Co Ltd filed Critical Petrochina Co Ltd
Priority to CN201721002537.7U priority Critical patent/CN207177833U/en
Application granted granted Critical
Publication of CN207177833U publication Critical patent/CN207177833U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The embodiment of the utility model provides a paraffin removal device, the device include that a plurality of paraffin scraper bodies and two connecting pieces that establish are enclosed to many intervals ring shape scrape wax part, drive arrangement, counter weight and lower income tip. The drive shaft of the drive device is used as a central shaft, the balance weight and the wax scraping part are sequentially sleeved on the drive shaft, the lower end part is arranged at the bottom of the wax scraping part and is coaxial with the drive shaft, and through the connection relation, the drive shaft drives the wax scraping part, the balance weight and the lower end part to rotate under the action of the drive main body, so that wax deposition points with serious wax deposition and hard wax deposition on the wall of an oil pipe are effectively eliminated, the phenomena of top drilling and sticking of a drill are avoided, and the risk of wax removal operation is reduced.

Description

Paraffin removal device
Technical Field
The utility model relates to an oil gas field development technical field especially relates to a paraffin removal device.
Background
In the process of oil and gas well development and production, wax and asphaltene accumulated on the wall of a tubing pipe for a long time can influence oil and gas production, and even block the tubing string to stop production in severe cases, so that wax removal operation needs to be carried out regularly.
At present, the paraffin removal mode is mainly mechanical paraffin removal, adopts the steel wire to drive the weight bar and slowly transfer the paraffin scraping plate, and the transfer of paraffin scraping plate relies on the self weight of weight bar, transfers the in-process paraffin scraping plate and scrapes the wax to the pipe wall.
When the wax removal mode is executed, at least the following problems exist: to the severe and hard high pressure oil gas well of wax deposit, take place the top easily and bore, the card brill phenomenon, not only paraffin removal instrument is unable to pass through, but also can take place paraffin removal instrument cluster and drop the pit shaft accident, leads to the unable normal production of oil well.
SUMMERY OF THE UTILITY MODEL
The utility model provides a paraffin removal device to solve paraffin removal device operation in-process roof drilling, the phenomenon of card brill.
The utility model provides a paraffin removal device includes: the wax scraping component, the driving device, the counterweight and the lower inlet end part;
the driving device comprises a driving main body and a driving shaft connected with the driving main body;
the wax scraping component comprises a plurality of wax scraping cutter bodies arranged at intervals and two connecting pieces, the plurality of wax scraping cutter bodies arranged at intervals are encircled to form a ring, and two ends of each wax scraping cutter body are respectively connected with the corresponding connecting pieces;
the counterweight is sleeved on the driving shaft, the wax scraping part is sleeved on the counterweight, and the lower inlet end part is arranged at the bottom of the wax scraping part and is coaxial with the driving shaft;
the lower inlet end part is a conical body, and the tip of the conical body is one end far away from the wax scraping part;
the drive shaft drives the wax scraping part, the balance weight and the lower inlet end part to rotate under the action of the drive main body.
The utility model discloses an in an embodiment, it is straight slice form, a plurality of to scrape the wax cutter body and evenly enclose and establish on the circumference that the drive shaft is the central line.
The utility model discloses an in an embodiment, it is a plurality of to scrape the wax cutter body and be the straight piece of rectangle, scrape the slope of wax cutter body and enclose to establish on the circumference, so that scrape the wax cutter body outside extremely the distance of drive shaft axis certainly go into the tip extremely increase gradually in the drive arrangement direction.
The utility model discloses an in the embodiment, it is a right trapezoid straight piece, a plurality of to scrape the wax cutter body and enclose perpendicularly and establish on the circumference, scrape the shorter base of wax cutter body and be in scrape the lower extreme of wax part, just the hypotenuse of scraping the wax cutter body is in scrape the outside of wax part.
In an embodiment of the present invention, the orientation of the wax scraper body and the included angle of the tangential direction of the circumferential track when the wax scraper body rotates are non-right angles.
In an embodiment of the present invention, the number of the wax scraping blade bodies is at least three.
In an embodiment of the present invention, the connecting member includes a first connecting member and a second connecting member, and an outer diameter of the first connecting member is larger than an outer diameter of the second connecting member.
The utility model discloses an in an embodiment, the counter weight is the cylinder pole, the internal diameter of cylinder pole with the drive shaft external diameter is the same, the cylinder pole is with a plurality of there is the space between the wax scraper body.
In one embodiment of the present invention, the driving body is an electric motor.
In one embodiment of the present invention, the driving body is powered by an external device and/or an internal battery through a cable.
The utility model provides a paraffin removal device includes that a plurality of paraffin scraper bodies and two connecting pieces that establish are enclosed to many interval rings shape scrape wax part, drive arrangement, counter weight and lower income tip. The drive shaft of the drive device is used as a central shaft, the balance weight and the wax scraping part are sequentially sleeved on the drive shaft, the lower end part is arranged at the bottom of the wax scraping part and is coaxial with the drive shaft, and through the connection relation, the drive shaft drives the wax scraping part, the balance weight and the lower end part to rotate under the action of the drive main body, so that wax deposition points with serious wax deposition and hard wax deposition on the wall of an oil pipe are effectively eliminated, the phenomena of top drilling and sticking of a drill are avoided, and the risk of wax removal operation is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a paraffin removal device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a wax scraping component of a wax removal device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a wax scraping component of a wax removal device according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a wax scraping component of a wax removal device according to a third embodiment of the present invention.
Description of reference numerals:
a paraffin removal device-100;
a wax scraping component-1; a wax scraper body-11; a connector-12; a first connecting member 121; a second connector-122;
a drive device-2; a drive main body 21; a drive shaft 22;
configuration-3;
the lower entry end-4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses be applied to oil gas field development field to clear away long time accumulational wax and pitch on the oil pipe wall, following to the utility model discloses a concrete implementation makes as follows detailed description.
Example one
Fig. 1 is the utility model provides a structural schematic diagram of paraffin removal device, fig. 2 is the utility model provides a paraffin removal device scrape the structural schematic diagram of wax part, as shown in fig. 1, the utility model provides a paraffin removal device 100, include: the wax scraping component 1, the driving device 2, the counterweight 3 and the lower inlet end part 4;
the driving device 2 includes a driving body 21 and a driving shaft 22 connected to the driving body 21; the driving shaft 22 is connected with the driving body 21 through a connecting part, the driving body 21 provides power for the driving shaft 22, and when the driving shaft 22 rotates, the driving body 21 is fixed relative to the driving shaft 22.
The wax scraping component 1 comprises a plurality of wax scraping cutter bodies 11 arranged at intervals and two connecting pieces 12, the plurality of wax scraping cutter bodies 11 arranged at intervals are encircled to form a ring, and two ends of each wax scraping cutter body 11 are respectively connected with the corresponding connecting piece 12;
as shown in fig. 2, the wax scraper body 11 is a straight blade, and the plurality of wax scraper bodies 11 are uniformly arranged around the circumference of the drive shaft 22.
Those skilled in the art will understand that: on one hand, the wax scraper body 11 is a straight piece, and the specific shape of the straight piece may be a rectangle, a right triangle, a right trapezoid, etc., and is not limited herein. Compared with the spiral wax scraper body 11 in the prior art, the use of any straight-blade wax scraper body 11 is more beneficial to the upward washing of the scraped wax by the shaft fluid, so that the scraped wax can smoothly pass through the gap between the adjacent wax scraper bodies 11, and the method is simple and efficient;
on the other hand, under the driving of the driving shaft 22, the wax scraper body 11 rotates at a high speed on the circumference taking the driving shaft 22 as the center, so that compared with the mechanical wax removal in the prior art, the efficiency of the wax removal operation is greatly improved.
As shown in fig. 2, the wax scraper body 11 is vertically fixed on the upper and lower connecting members 12 by welding, one end of the wax scraper body 11 is fixedly connected with the upper connecting member, and the other end of the wax scraper body 11 is fixedly connected with the lower connecting member. Through the arrangement, a plurality of wax scraper bodies 11 arranged at intervals are vertically fixed on the upper connecting piece and the lower connecting piece 12, and the wax scraper component 1 annularly surrounded by the cutter bodies with the connecting pieces at two ends is formed. It should be noted that the plurality of wax scraper bodies 11 are arranged at intervals, so that the wax scraper bodies 11 can scrape off wax accumulated on the oil pipe, and when wellbore fluid is washed upwards, the scraped wax can be discharged through the intervals between the adjacent wax scraper bodies 11, so that the wax removal is smoother.
Specifically, the two connecting members 12 are annular cylindrical, the outer diameters of the upper connecting member and the lower connecting member are the same, and the outer diameter of the lower connecting member is the same as the diameter of the flat end of the lower insertion end portion 2.
The counterweight 3 is sleeved on the driving shaft 22, the wax scraping part 1 is sleeved on the counterweight 4, and the lower inlet end part 4 is arranged at the bottom of the wax scraping part 1 and is coaxial with the driving shaft 22; wherein,
the balance weight 3 is sleeved on the driving shaft 22, the wax scraping component 1 is sleeved on the balance weight 4 through the two connecting pieces 12, and therefore the balance weight 4 is arranged at the rotating center position of the wax scraping cutter bodies 11, and a gap exists between the balance weight 4 and the wax scraping cutter bodies 11. The counterweight 3 provides a downward weight for the lowering of the wax cleaning device 100, and at the same time, makes the wax scraper body 11 more stable during rotation.
The lower end part 4 is a conical body, and the tip of the conical body is one end far away from the wax scraping part 1; wherein, the lower end portion 4 can be connected with the lower connecting piece of the wax scraping component 1 by welding, or the flat end of the lower end portion 4 is provided with a circular groove, the inner diameter of the groove is the same as the outer diameter of the driving shaft 22, the lower end portion 4 is welded with the driving shaft 22 by the groove, and the lower end portion 4 is coaxial with the driving shaft 22. When the paraffin removal device 100 is put into an oil pipe, the tip of the putting-in end part 4 firstly contacts the paraffin precipitation in the oil pipe, and when the driving shaft 22 drives the putting-in end part 4 to rotate, the conical body just extending into the paraffin precipitation has a certain grinding effect, so that the paraffin removal device 100 can be conveniently and smoothly put in, the phenomena of top drilling and drill opening are avoided, and the smooth and effective paraffin removal operation is ensured.
The drive shaft 22 drives the wax scraping part 1, the balance weight 3 and the lower inlet end part 4 to rotate under the action of the drive main body 21. The specific working process is as follows:
the drive main body 21 of the drive device 2 is connected by a steel wire or a cable, the paraffin removal device 100 is lowered to a paraffin deposition point in the oil pipe under the assistance of the counterweight 3, the drive device 2 is started, and the drive shaft 22 drives the paraffin scraping component 1, the counterweight 1 and the lower end part 4 to rotate under the action of the drive main body 21. The rotating lower end part 4 firstly contacts the wax precipitation point, the structure of the lower end part 4 is a conical body, so that the lower end part can conveniently extend into the inner wall of the wax precipitation point to carry out primary grinding on the wax precipitation point, and the rotating wax scraper body 11 further grinds the wax precipitation point along with the downward movement of the whole wax cleaning device 100, so that the wax precipitation and the asphalt on the wall of the oil pipe are effectively removed from top to bottom.
The embodiment of the utility model provides a paraffin removal device, the device include that a plurality of paraffin scraper bodies and two connecting pieces that establish are enclosed to many intervals ring shape scrape wax part, drive arrangement, counter weight and lower income tip. Use drive arrangement's drive shaft as the center pin, with the counter weight, scrape wax part and overlap in proper order and establish in the drive shaft, the tip setting of going into will be in the bottom of scraping wax part and coaxial with the drive shaft, through above-mentioned relation of connection, under the effect of drive main part, the drive shaft drives scrapes wax part, counter weight and the tip rotation of going into down, not only effectively clear away serious and the harder wax deposition point of wax deposition on the oil pipe wall, avoid the top and bore, the card bores the phenomenon, reduce the risk of paraffin removal operation, and need not to encrypt the paraffin removal cycle excessively or use more expensive coiled tubing drill to grind the mode and carry out the paraffin removal, thereby reduce cost, guarantee the high-efficient paraffin removal operation of accomplishing smoothly.
On the basis of the above embodiments, the wax scraping component 1 of the wax removing device 100 of the present invention can also have a plurality of specific implementation manners to achieve a better wax removing effect, and the following embodiments are listed and described below.
Example two
Fig. 3 is the structural schematic diagram of the wax scraping component of the wax removing device provided by the second embodiment of the present invention, as shown in fig. 3, the wax scraping cutter body 11 is a rectangular straight piece, and a plurality of wax scraping cutter bodies 11 are inclined and enclosed on the circumference, so that the distance from the outer side of the wax scraping cutter body 11 to the axis of the driving shaft 22 is gradually increased from the lower end portion 4 to the direction of the driving device 2.
In other words, the rectangular straight-sheet-shaped wax scraper body 11 is welded to the upper and lower connecting members 12 at an angle, and the diameter of the circumference of the wax scraper body 11 at the lower connecting member is smaller than the diameter of the circumference of the wax scraper body 11 at the upper connecting member. When the driving shaft 22 drives the wax scraper body 11 to rotate, the external profile after rotating is in an inverted cone shape.
In this embodiment, the wax scraping cutter body of the wax scraping component is welded on the upper connecting piece and the lower connecting piece in an inclined manner, so that the beneficial effects brought by the rotation of the lower inlet end part in the embodiment are realized, namely, the wax precipitation points with serious wax precipitation and hard wax precipitation on the wall of the oil pipe are gradually ground from bottom to top, the phenomena of top drilling and drill opening are avoided, and the smooth and efficient wax removal operation is ensured.
In a specific implementation manner of this embodiment, the number of the wax scraper bodies 11 is at least three. The number of the wax scraper bodies 11 is not too large or too small, the wax scraped by the wax scraper bodies 11 may not smoothly pass through the plurality of wax scraper bodies 11 arranged at intervals due to the too large number of the wax scraper bodies 11, and the wax scraper bodies may not remove stubborn wax precipitation points due to the too small number of the wax scraper bodies 11. Preferably, the number of the wax scraper bodies 11 is three, so that not only is the cutting effect good, but also enough space is reserved between the adjacent wax scraper bodies 11, and enough space is provided for wax discharge when the well bore fluid is washed upwards.
In addition, a specific implementation manner of the connecting member 12 in this embodiment is as follows: the connector 12 includes a first connector 121 and a second connector 122, and an outer diameter of the first connector 121 is larger than an outer diameter of the second connector 122. Wherein,
the first connecting piece 121 is an upper connecting piece of the wax scraping component 1, the second connecting piece 122 is a lower connecting piece of the wax scraping component 1, one end of the rectangular straight-sheet-shaped wax scraper body 11 is fixed with the first connecting piece 121 through welding, and the other end of the rectangular straight-sheet-shaped wax scraper body is fixed with the second connecting piece 122 through welding. It can be known that the lower end of the wax scraping part 1 comprising the rectangular straight-sheet-shaped wax scraping cutter body 11, the first connecting piece 121 and the second connecting piece 122 is small, the upper end of the wax scraping part 1 is large, when the wax scraping part 1 is sleeved on the driving shaft 22 through the first connecting piece 121 and the second connecting piece 122 to rotate, the external outline of the wax scraping part 1 is in an inverted cone shape, the wax removing device 100 can be put in the wax removing device, the wax removing device 100 can grind wax deposition points with serious wax deposition and hard wax deposition on the wall of an oil pipe from bottom to top, the phenomena of top drilling and drill opening are avoided, and the smooth and efficient wax removing operation is ensured.
Specifically, the counterweight 3 is a cylindrical rod, the inner diameter of the cylindrical rod is the same as the outer diameter of the driving shaft 22, and gaps exist between the cylindrical rod and the plurality of wax scraper bodies 11. Wherein,
above-mentioned cylinder pole setting is put at the rotation center of a plurality of wax scraper bodies 11 for it is more stable when wax scraper body 11 is rotatory, and counter weight 3 designs for the cylinder pole, can not cause the hindrance to spouting of the wax removal in-process of wax scraper body 11, ensures that the paraffin removal is accomplished smoothly.
Specifically, the driving body 21 is an electric motor. The driving shaft 22 drives the wax scraping part 1, the balance weight 3 and the lower inlet end part 4 to rotate under the driving of the electric motor, so that electric paraffin removal is realized, and compared with mechanical paraffin removal in the prior art, the efficiency of paraffin removal operation is greatly improved.
In a specific implementation of this embodiment, the drive body 21 is powered by an external device and/or an internal battery via a cable.
When the driving body 21 is supplied with power from an external device through a cable, the driving body 21 lowers the paraffin removal device 100 through the cable. Wherein,
the drive body 21 is provided with an opening through which a cable is connected to the inside of the drive body 21. To avoid wax and asphalt removed during operation from entering the drive body 21, the opening should be sealed.
When the driving body 21 is powered by the internal battery, the driving body 21 lowers the paraffin removal device 100 by a wire.
EXAMPLE III
The present embodiment provides another structure of the wax scraper body 11, which achieves the same technical effects as the embodiments. Fig. 4 is the utility model discloses the structural schematic diagram of the wax scraping part of paraffin removal device that embodiment three provided, as shown in fig. 4, the paraffin scraper body is right trapezoid straight piece, and a plurality of paraffin scraper bodies enclose perpendicularly and establish on the circumference, and the shorter base of paraffin scraper body is at the lower extreme of paraffin scraper part, and the hypotenuse of paraffin scraper body is in the outside of paraffin scraper part.
In other words, the wax scraper body 11 is a right trapezoid straight piece, the outer side of the wax scraper body 11 is the bevel edge of the right trapezoid body, and the shorter base of the right trapezoid body is at the lower end of the wax scraper component 1, it can be understood that the shorter base of the right trapezoid body of the embodiment is welded on the lower connecting piece, the longer base of the right trapezoid body is welded on the upper connecting piece, and when the drive shaft 22 drives the wax scraper body 11, the external profile after rotation is in an inverted cone shape. The structure of the wax scraper body 11 of this embodiment can also achieve the technical effects of the second embodiment, and will not be described herein again.
Similarly, in a specific implementation manner of this embodiment, the number of the wax scraper bodies 11 is at least three, and the technical principle and the beneficial effects thereof are the same as those of the second embodiment, and are not described herein again.
In addition, a specific implementation manner of the connecting member 12 in this embodiment is as follows: the connector 12 includes a first connector 121 and a second connector 122, and an outer diameter of the first connector 121 is larger than an outer diameter of the second connector 122. Wherein,
the first connecting piece 121 is an upper connecting piece of the wax scraping component 1, the second connecting piece 122 is a lower connecting piece of the wax scraping component 1, one end of the longer bottom edge of the right trapezoid-shaped wax scraping cutter body 11 is fixed with the first connecting piece 121 through welding, and one end of the shorter bottom edge of the right trapezoid-shaped wax scraping cutter body 11 is fixed with the second connecting piece 122 through welding. It can be known that, the lower end of the wax scraping part 1 including the right trapezoid-shaped wax scraping cutter body 11, the first connecting piece 121 and the second connecting piece 122 is small, the upper end is large, when the wax scraping part 1 rotates on the driving shaft 22 through the first connecting piece 121 and the second connecting piece 122, the external outline is in an inverted cone shape, which is beneficial to the entering of the wax removing device 100, and is beneficial to the gradual grinding of the wax removing device 100 from bottom to top on the wall of the oil pipe with serious wax deposition and hard wax deposition points, thereby avoiding the phenomena of top drilling and drilling, and ensuring the smooth and efficient wax removing operation.
The specific implementation principle and technical effects of the counterweight 3 and the driving body 21 in this embodiment are the same as those in the embodiment, and are not described herein again.
Example four
On the basis of any of the above embodiments, the present embodiment further defines the orientation of the wax scraper body 11, so as to improve the service life of the wax scraper body 11.
In general, the angle between the orientation of the wax scraper body 11 and the tangential direction of the circumferential track when the wax scraper body 11 rotates is a right angle, it can be understood that the wax cleaning force of the wax scraper body 11 arranged at the right angle is the largest, but considering that in practical application, the wax deposition on the wall of the oil pipe is severe and the wax is hard, the angle arrangement of the wax scraper body 11 is obvious and not reasonable. It is conceivable that when the driving shaft 22 rotates at a high speed to drive the wax scraper body 11, the wax scraper body 11 repeatedly cuts hard wax deposition points at a high strength, which may easily damage the wax scraper body. Therefore, in order to prolong the service life of the wax scraper body 11, the orientation of the wax scraper body 11 is optimized as follows in the present embodiment:
the orientation of the wax scraper body 11 and the tangential direction of the circumferential track when the wax scraper body 11 rotates form a non-right angle.
In other words, through the non-right-angle arrangement of the included angle, when the wax scraper body 11 contacts the wax precipitation point on the wall of the oil pipe, a certain inclination angle is formed between the wax scraper body 11 and the tangential direction of the wax precipitation point on the wall of the pipe, so that the contact area between the wax scraper body 11 and the wax precipitation is increased, the wax scraper body 11 is favorable for uniformly dispersing the cutting force of the wax scraper body, the service life of the wax scraper body is prolonged, and the better wax removal effect is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A paraffin removal device, comprising: the wax scraping component, the driving device, the counterweight and the lower inlet end part;
the driving device comprises a driving main body and a driving shaft connected with the driving main body;
the wax scraping component comprises a plurality of wax scraping cutter bodies arranged at intervals and two connecting pieces, the plurality of wax scraping cutter bodies arranged at intervals are encircled to form a ring, and two ends of each wax scraping cutter body are respectively connected with the corresponding connecting pieces;
the counterweight is sleeved on the driving shaft, the wax scraping part is sleeved on the counterweight, and the lower inlet end part is arranged at the bottom of the wax scraping part and is coaxial with the driving shaft;
the lower inlet end part is a conical body, and the tip of the conical body is one end far away from the wax scraping part;
the drive shaft drives the wax scraping part, the balance weight and the lower inlet end part to rotate under the action of the drive main body.
2. The paraffin removal device as claimed in claim 1, wherein the paraffin cutter bodies are straight blades, and a plurality of the paraffin cutter bodies are uniformly arranged around a circumference having the driving shaft as a center line.
3. The paraffin removal device of claim 2,
the wax scraper bodies are rectangular straight pieces, and the plurality of wax scraper bodies are obliquely arranged on the circumference in a surrounding mode, so that the distance from the outer sides of the wax scraper bodies to the axis of the driving shaft is gradually increased from the lower entry end portion to the driving device.
4. The wax removal device of claim 2, wherein the wax scraper bodies are right trapezoid straight pieces, a plurality of the wax scraper bodies are vertically arranged on the circumference in a surrounding manner, the shorter bottom edges of the wax scraper bodies are arranged at the lower ends of the wax scraper components, and the inclined edges of the wax scraper bodies are arranged at the outer sides of the wax scraper components.
5. The paraffin removal device according to any one of claims 1 to 4,
the included angle between the orientation of the wax scraper body and the tangential direction of the circumferential track when the wax scraper body rotates is a non-right angle.
6. The paraffin removal device of claim 5, wherein the number of the paraffin scraper bodies is at least three.
7. The paraffin removal device of claim 6,
the connecting piece comprises a first connecting piece and a second connecting piece, and the outer diameter of the first connecting piece is larger than that of the second connecting piece.
8. The paraffin removal device of claim 7,
the balance weight is a cylindrical rod, the inner diameter of the cylindrical rod is the same as the outer diameter of the driving shaft, and gaps exist between the cylindrical rod and the plurality of wax scraper bodies.
9. The paraffin removal device of claim 8, wherein the drive body is an electric motor.
10. A paraffin removal device as claimed in claim 9, wherein the drive body is powered by an external device and/or an internal battery via a cable.
CN201721002537.7U 2017-08-11 2017-08-11 Paraffin removal device Active CN207177833U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721002537.7U CN207177833U (en) 2017-08-11 2017-08-11 Paraffin removal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721002537.7U CN207177833U (en) 2017-08-11 2017-08-11 Paraffin removal device

Publications (1)

Publication Number Publication Date
CN207177833U true CN207177833U (en) 2018-04-03

Family

ID=61740544

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721002537.7U Active CN207177833U (en) 2017-08-11 2017-08-11 Paraffin removal device

Country Status (1)

Country Link
CN (1) CN207177833U (en)

Similar Documents

Publication Publication Date Title
RU2393333C1 (en) Device for cleaning inner surface of tubing string (versions)
CN110685588A (en) Efficient cleaning device for power head of rotary drilling rig
WO2007100250A1 (en) Cutter head and suction dredger
US20050028306A1 (en) Apparatus and bit for cleaning pipes
CN207177833U (en) Paraffin removal device
CN218555057U (en) Natural gas pipeline cleaner
CN108301390B (en) Underwater dirt cleaning system for hydraulic and hydroelectric engineering
CN207655609U (en) A kind of cleaning plant of cementing tank
CN112761558B (en) Annular space acceleration rate swirler for vertical shaft
CN206376826U (en) Wax scraping device
CN113457229A (en) Self-adjusting mud scraper
RU86653U1 (en) DEVICE FOR CLEANING THE INTERNAL SURFACE OF A PUMP AND COMPRESSOR PIPE (OPTIONS)
CN208039287U (en) Multi-functional water conservancy construction drainage arrangement
CN110777791A (en) Bored concrete pile stake hole sediment cleaning device
CN106312040A (en) Slag scraper for steel ladle opening
CN215804482U (en) Borehole wall impurity cleaning device for downhole operation
CN205295124U (en) Drilling platform silt processing system
CN206129238U (en) Cross size mud cake duster
CN217681593U (en) Spiral piece soil cleaning structure, soil cleaning device and drilling machine
CN211752731U (en) Multifunctional truss suction dredger
CN208136716U (en) A kind of road and bridge construction drainage arrangement
CN201857938U (en) Oil tube scraper for steel wire operation
CN203362529U (en) Sediment pump for collecting sediment
CN219992522U (en) Deep foundation pit dewatering device
CN203905850U (en) Long spiral piling machinery desilting device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant