Pipeline unblocking equipment for coiled tubing and using method

Abstract

The invention relates to the technical field of pipeline unblocking, and discloses a pipeline unblocking device for a coiled tubing and a using method.The pipeline unblocking device comprises a head shell, the coiled tubing penetrates through the top face of the head shell and is fixed to the top face of the head shell, a cavity is formed in the upper portion of the interior of the head shell, and a U-shaped frame is fixed to the lower portion of the inner wall of the head shell; a micro servo motor is fixedly installed in the middle of the bottom face of the U-shaped frame in a penetrating mode, the top face of the micro servo motor is fixedly connected with the inner wall of the head shell, a round rod is rotatably installed at the bottom end of the interior of the head shell in a penetrating mode, the top end of the round rod is fixedly connected with the bottom face of a rotating shaft of the micro servo motor, and an I-shaped disc is fixed to the bottom face of the head shell. Two liquid guide pipes penetrate through and are fixed to the bottom end of the interior of the cavity of the head shell, the blocked position of an underground pipeline is drilled through the triangular plate, the electric spray head sprays out water flow to flush waxy substances on the wall face of the pipeline, and therefore the situation that blocking is caused due to the fact that equipment is difficult to rapidly treat the caked waxy substances in the underground pipeline is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline unblocking, and in particular to a pipeline unblocking device for a coiled oil pipe and a use method thereof. Background Art

[0002] During the oil and gas production process, waxy substances will form on the inner wall of the pipeline, which will then block the pipeline. The coiled tubing is slowly lowered into the pipeline through the wellhead assembly until it reaches the blockage location. The powerful impact force generated by the high-pressure fluid ejected from the pipe head of the coiled tubing clears the blockage in the pipeline. Its high strength and recyclable characteristics enable it to operate efficiently in horizontal wells or highly deviated wells, restoring oil well production capacity.

[0003] Patent publication number CN115596380B discloses a downhole radial pulse jet device and method for continuous oil tubing. The device comprises a cover plate, an inner core, and a vertically arranged tubular body. A main flow channel extends vertically through the center of the tubular body, and a plurality of mounting grooves opening outward are evenly spaced along the circumference of the outer portion of the central portion of the tubular body. The device has a reasonable and compact structure and is easy to use. The diameter of the main flow channel located below the liquid inlet is smaller than the diameter of the main flow channel located above the liquid inlet, which can ensure the flow rate of the fluid entering the liquid inlet. The fluid forms a pulse fluid in the jet chamber and flows out through the liquid outlet to flush the inner wall of the tubing. The inner core can increase the impact energy of the fluid, effectively unblocking the inner wall of the tubing, thereby effectively clearing contaminated blockages in the near-wellbore area of the perforated well section. Pulsed jets at the circumferentially evenly spaced liquid outlets can be used to fully clean the inner wall of the tubing, improving operational efficiency.

[0004] However, current downhole radial pulse jet devices for coiled tubing have the following problems: when the downhole pipeline is clogged with waxy material, the waxy material forms lumps that are difficult to be quickly flushed away by water, resulting in poor unclogging effectiveness. Therefore, a coiled tubing unclogging device and method of use are proposed to address the aforementioned issues. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pipeline unblocking device for a coiled tubing and a method for using the device in view of the above-mentioned deficiencies in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pipeline unblocking device for continuous oil pipes, including a head shell, the top surface of the head shell passes through and is fixed with a continuous oil pipe, a chamber is provided above the head shell, a U-shaped frame is fixed below the inner wall of the head shell, a micro servo motor is passed through and fixedly installed in the middle of the bottom surface of the U-shaped frame, the top surface of the micro servo motor is fixedly connected to the inner wall of the head shell, a round rod is passed through and rotatably installed at the bottom end of the head shell, the top end of the round rod is fixedly connected to the bottom surface of the rotating shaft of the micro servo motor, an I-shaped disk is fixed on the bottom surface of the head shell, and the bottom end of the chamber of the head shell passes through Two liquid guide tubes are passed through and fixed, and the two liquid guide tubes pass through and are fixed on the bottom end of the U-shaped frame, and the two liquid guide tubes pass through and are fixed on the top surface of the I-shaped disk. A groove shell is rotatably installed on the inner wall of the I-shaped disk, and the inner bottom end of the groove shell is fixedly connected to the bottom end of the round rod. Four electric sprinklers are passed through and fixedly installed on the outer wall of the groove shell, and a ring block is fixed on the bottom surface of the groove shell, and four thin rods are fixed on the outer wall of the ring block. Four triangular pieces are respectively fixed on the outer walls of the four thin rods. During the rotation of the triangular piece, the triangular piece drills the blockage in the downhole pipeline, and the electric sprinkler sprays water to flush the waxy substance on the wall of the pipeline.

[0007] Preferably, the outer wall of the continuous oil pipe is wound around the inner wall of the I-shaped roller, and a rotating shaft is provided in the middle of the front and back sides of the I-shaped roller. The outer walls of the two rotating shafts of the I-shaped roller are rotatably connected to the inner wall of the base frame. A bottom plate is fixed to the front of the base frame, and a motor is fixedly installed on the top surface of the bottom plate. The back side of the rotating shaft of the motor is fixedly connected to the front side of the rotating shaft of the I-shaped roller. A connecting block is fixed to the right side of the top surface of the bottom plate, and the inner wall of the connecting block is fixedly connected to the outer wall of the continuous oil pipe. A bracket is fixed to the left side of the top surface of the bottom plate, and a head shell is placed on the top surface of the bracket.

[0008] Preferably, a handle is provided on the top of the outer wall of the head shell, and a circular block is provided on the right side of the head shell, and the circular block of the head shell is stuck on the outer wall of the bracket.

[0009] Preferably, the two liquid guide tubes are located on the left and right sides of the micro servo motor, and the four triangular pieces are located in front of the outer wall of the groove shell.

[0010] Preferably, a rotating wall device is provided on the bottom surface of the ring block, and the rotating wall device is used to scrape off the waxy substance on the inner wall of the pipe. The bottom surface of the rotating wall device is provided with an anti-pressure device, and the anti-pressure device is used to reduce the electric spray head from being squeezed by the waxy substance.

[0011] Preferably, a square rod is fixed to the bottom surface of the ring block, and triangular blocks are fixed to both ends of the square rod, and two scraping strips are respectively embedded in the sides of the two triangular blocks away from each other, and a groove plate is fixed to the bottom of the outer wall of the head shell, and the top and bottom surfaces of the groove plate are provided with sliding grooves, and two clamping blocks are respectively fixed to the tops of the sides of the two scraping strips away from each other, and the outer walls of the two clamping blocks are slidably connected to the inner walls of the two sliding grooves of the groove plate. During the rotation of the scraping strip, the scraping strip scrapes off the waxy substance remaining on the wall of the underground pipeline.

[0012] Preferably, two vertical rods are respectively passed through and fixed on the top surfaces of the two blocks, and two arc-shaped spring pieces are respectively embedded in the bottom of the outer walls of the two vertical rods. A convex disk is fixed to the bottom of the outer wall of the head shell, and the convex disk is located below the groove disk. The outer wall of the convex disk is provided with a number of protrusions, and the outer wall of the several protrusions of the convex disk is on the movement trajectory of the outer walls of the two arc-shaped spring pieces. The arc-shaped spring pieces hit the protrusions of the convex disk during rotation, and the vibration generated when the arc-shaped spring pieces are deformed is transmitted to the scraper, so that the scraper vibrates to scrape off the waxy substance remaining on the wall of the underground pipeline.

[0013] Preferably, two round pieces are fixed to the bottom surfaces of the two vertical rods respectively, two straight rods are fixed in the middle of the bottom surfaces of the two round pieces respectively, two square plates are fixed to the bottom surfaces of the two straight rods respectively, and an annular plate is fixed to the bottom surfaces of the two square plates. The annular plate is located below the four electric nozzles. During the rotation of the annular plate, the annular plate rests on the waxy substance to prevent the waxy substance from being squeezed onto the electric nozzle.

[0014] Preferably, two double-arc plates are fixed on the top surface of the annular plate, and two inclined plates are fixed on the top surfaces of the two double-arc plates respectively. The two inclined plates are respectively located in front of the two straight rods, and two short rods are respectively fixed on the top of the outer walls of the two inclined plates. The two short rods are respectively fixedly connected to the bottom of the outer walls of the two scrapers, and the inclined plates drive the short rods to rotate forward, and the short rods rotate against the scrapers.

[0015] A method for using a coiled tubing unblocking device comprises the following steps: S1. The operator lifts the head shell with the handle and drops it into the downhole pipeline. The motor's shaft drives the I-shaped roller to reverse, which releases the coiled tubing. The head shell reaches the blocked part of the downhole pipeline. S2. The thin rod drives the triangular piece to rotate forward, and the triangular piece drills the blocked part of the underground pipeline. The electric nozzle sprays water to flush the waxy substance on the pipeline wall; S3. The triangular block drives the scraper to rotate. During the rotation, the scraper scrapes away the waxy substance remaining on the wall of the underground pipe; S4, the arc-shaped spring piece hits the bump of the convex disc during the rotation process, and the vibration generated by the deformation of the arc-shaped spring piece is transmitted to the scraper strip; S5. During the rotation of the ring plate, the ring plate rests on the waxy substance to prevent the waxy substance from being squeezed onto the electric spray nozzle; S6. The inclined plate drives the short rod to rotate forward, and the short rod rotates against the scraper bar.

[0016] The present invention adopts the above technical solution, which can bring the following beneficial effects: 1. The device uses a head shell, a coiled tubing, a U-shaped frame, a micro servo motor, a round rod, an I-shaped disk, a liquid guide tube, a groove shell, an electric sprinkler, a ring block and a thin rod in conjunction with a triangular piece, so that the coiled tubing transports water to the chamber of the head shell, the water in the head shell chamber enters the liquid guide tube, the water in the liquid guide tube enters the groove shell, the electric sprinkler sprays water to the blocked part of the downhole pipeline, the groove shell drives the ring block to rotate forward, the ring block drives the thin rod to rotate forward, the thin rod drives the triangular piece to rotate forward, and during the rotation of the triangular piece, the triangular piece drills the blocked part of the downhole pipeline, and the electric sprinkler sprays water to flush the waxy substance on the pipeline wall, preventing the equipment from having difficulty in quickly processing the waxy substance agglomerated in the downhole pipeline and causing blockage.

[0017] 2. The wall rotating device is equipped with a square rod, a triangular block, a scraper and a grooved plate in conjunction with a clamping block. The triangular block drives the scraper to rotate forward, so that the scraper scrapes off the waxy substance remaining on the wall of the downhole pipe during the rotation process, preventing the waxy substance remaining on the wall of the downhole pipe from causing the downhole pipe to be easily blocked again.

[0018] 3. The wall rotating device is equipped with a convex disc through a vertical rod and an arc-shaped spring piece. The arc-shaped spring piece hits the convex block of the convex disc during rotation. The vibration generated by the deformation of the arc-shaped spring piece is transmitted to the vertical rod, and the vertical rod transmits the vibration to the scraper bar, so that the scraper bar vibrates to scrape off the waxy substance remaining on the wall of the underground pipe, preventing the waxy substance from firmly adhering to the wall of the underground pipe and causing poor scraping effect of the equipment.

[0019] 4. The anti-pressure device is equipped with a ring plate through a disc, a straight rod and a square plate. During the rotation of the ring plate, the ring plate rests on the waxy substance, so that the waxy substance will not be squeezed onto the electric sprinkler head, thereby preventing the waxy substance from squeezing onto the electric sprinkler head and causing easy damage to the electric sprinkler head.

[0020] 5. The anti-pressure device is equipped with a short rod through a double arc plate and an inclined plate. The double arc plate drives the inclined plate to rotate forward, and the inclined plate drives the short rod to rotate forward. The short rod rotates against the scraper bar to prevent the scraper bar from being deformed and damaged due to rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the head shell of the present invention; Figure 4 Schematic diagram of the wall rotating device of the present invention; Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of point A in the middle; Figure 6 Schematic diagram of the pressure-proof device of the present invention; Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. head shell; 2. coiled tubing; 3. U-shaped frame; 4. micro servo motor; 5. round rod; 6. I-shaped disk; 7. liquid guide tube; 8. groove shell; 9. electric sprinkler; 10. ring block; 11. thin rod; 12. triangular piece; 13. rotating wall device; 131. square rod; 132. triangular block; 133. scraper; 134. groove disk; 135. clamping block; 136. vertical rod; 137. arc-shaped spring piece; 138. convex disk; 14. anti-pressure device; 141. round piece; 142. straight rod; 143. square plate; 144. ring plate; 145. double arc plate; 146. inclined plate; 147. short rod; 15. I-shaped roller; 16. base frame; 17. bottom plate; 18. motor; 19. connecting block; 20. bracket. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 7One embodiment of the present invention is: a pipe unblocking device for a coiled tubing, comprising a head shell 1, a coiled tubing 2 passing through and fixed on the top surface of the head shell 1, a chamber provided above the head shell 1, a U-shaped frame 3 fixed below the inner wall of the head shell 1, a micro servo motor 4 passing through and fixedly installed in the middle of the bottom surface of the U-shaped frame 3, the top surface of the micro servo motor 4 is fixedly connected to the inner wall of the head shell 1, a round rod 5 passing through and rotatably installed on the bottom end of the head shell 1, the top end of the round rod 5 is fixedly connected to the bottom surface of the rotating shaft of the micro servo motor 4 Fixed connection, the bottom surface of the head shell 1 is fixed with an I-shaped disk 6, the bottom end of the interior of the chamber of the head shell 1 passes through and is fixed with two liquid guide tubes 7, the two liquid guide tubes 7 pass through and are fixed to the bottom end of the U-shaped frame 3, the two liquid guide tubes 7 pass through and are fixed to the top surface of the I-shaped disk 6, the inner wall of the I-shaped disk 6 is rotatably installed with a groove shell 8, the inner bottom end of the groove shell 8 is fixedly connected to the bottom end of the round rod 5, the outer wall of the groove shell 8 passes through and is fixedly installed with four electric nozzles 9, the bottom surface of the groove shell 8 is fixed with a ring block 10, and the outer wall of the ring block 10 is fixed Four thin rods 11, four triangular pieces 12 are fixed to the outer walls of the four thin rods 11, a handle is provided on the top of the outer wall of the head shell 1, a circular block is provided on the right side of the head shell 1, and the circular block of the head shell 1 is stuck on the outer wall of the bracket 20. The two liquid guide tubes 7 are located on the left and right sides of the micro servo motor 4. The four triangular pieces 12 are located in front of the outer wall of the groove shell 8. The groove shell 8 rotates forward in the I-shaped disk 6. The continuous oil pipe 2 transports water to the chamber of the head shell 1. The water in the chamber of the head shell 1 enters the liquid guide tube 7. The liquid guide tube 7 The water enters the groove shell 8, and the electric nozzle 9 sprays water to the blocked part of the downhole pipeline. The groove shell 8 drives the ring block 10 to rotate forward, and the ring block 10 drives the thin rod 11 to rotate forward, and the thin rod 11 drives the triangular piece 12 to rotate forward. During the rotation of the triangular piece 12, the triangular piece 12 drills the blocked part of the downhole pipeline, and the electric nozzle 9 sprays water to flush the waxy substance on the wall of the pipeline, thereby avoiding the situation that the pipeline unblocking equipment is difficult to quickly deal with the waxy substance agglomerated in the downhole pipeline and cause blockage during use; The outer wall of the coiled tubing 2 is wound around the inner wall of the I-shaped roller 15. A rotating shaft is provided in the middle of the front and back sides of the I-shaped roller 15. The outer walls of the two rotating shafts of the I-shaped roller 15 are rotatably connected to the inner wall of the base frame 16. A bottom plate 17 is fixed to the front of the base frame 16. A motor 18 is fixedly installed on the top surface of the bottom plate 17. The back of the rotating shaft of the motor 18 is fixedly connected to the front of the rotating shaft of the I-shaped roller 15. A connecting block 19 is fixed to the right side of the top surface of the bottom plate 17. The inner wall of the connecting block 19 is fixedly connected to the outer wall of the coiled tubing 2. A bracket 20 is fixed to the left side of the top surface of the bottom plate 17. The head shell 1 is placed on the top surface of the bracket 20. The bottom surface of the ring block 10 is provided with a rotating wall device 13 for scraping waxy substances on the inner wall of the pipe. The bottom surface of the rotating wall device 13 is provided with an anti-pressure device 14 for reducing the electric spray head 9 from being squeezed by the waxy substances.

[0025] Working principle: The chassis 16 supports the I-shaped roller 15, the I-shaped roller 15 supports the coiled tubing 2, the chassis 16 supports the connecting block 19, the connecting block 19 limits one end of the coiled tubing 2, and the water pump is connected to one end of the coiled tubing 2. The chassis 16 supports the bracket 20, and the bracket 20 supports the head shell 1. When the downhole pipeline is blocked by waxy substances, the waxy substances will form blocks and are difficult to be quickly flushed by water. When using the equipment, the operator lifts the head shell 1 with the handle and throws the head shell 1 into the well. The motor 18 is placed in the downhole pipeline, and the operator starts the motor 18 on the bottom plate 17. The shaft of the motor 18 starts to reverse, and the shaft of the motor 18 drives the I-shaped roller 15 to reverse. The I-shaped roller 15 reverses in the bottom frame 16. The I-shaped roller 15 loosens the coiled tubing 2, and the head shell 1 on the coiled tubing 2 moves downward in the downhole pipeline. When the head shell 1 reaches the blockage of the downhole pipeline, the shaft of the motor 18 stops rotating, and the operator starts the micro servo motor 4 on the U-shaped frame 3. The micro servo motor The rotating shaft of the machine 4 starts to rotate forward, and the rotating shaft of the micro servo motor 4 drives the round rod 5 to rotate forward, and the round rod 5 rotates forward in the I-shaped disk 6, and the round rod 5 drives the groove shell 8 to rotate forward, and the groove shell 8 rotates forward in the I-shaped disk 6. At the same time, the coiled tubing 2 transports water to the chamber of the head shell 1, and the water in the chamber of the head shell 1 enters the liquid guide tube 7, and the water in the liquid guide tube 7 enters the groove shell 8. The operator starts the electric sprinkler 9 on the groove shell 8, and the electric sprinkler 9 sprays water to the blocked part of the downhole pipeline. At the same time, The groove shell 8 drives the ring block 10 to rotate forward, the ring block 10 drives the thin rod 11 to rotate forward, and the thin rod 11 drives the triangular piece 12 to rotate forward. During the rotation of the triangular piece 12, the triangular piece 12 drills the blockage of the downhole pipeline, and the electric nozzle 9 sprays water to flush the waxy substance on the wall of the pipeline, preventing the equipment from being difficult to quickly deal with the waxy substance agglomerated in the downhole pipeline when in use, thereby avoiding the situation where the pipeline unblocking equipment is difficult to quickly deal with the waxy substance agglomerated in the downhole pipeline and causing blockage during use.

[0026] See also Figure 1-Figure 7 The two ends of the square rod 131 are fixed to the bottom surface of the ring block 10, and the two ends of the square rod 131 are fixed to triangular blocks 132. Two scraping strips 133 are embedded in the sides of the two triangular blocks 132 away from each other. A groove plate 134 is fixed to the bottom of the outer wall of the head shell 1. The top and bottom surfaces of the groove plate 134 are provided with sliding grooves. The two scraping strips 133 are fixed to the top of the side away from each other. The outer walls of the two clamping blocks 135 are slidably connected with the inner walls of the two sliding grooves of the groove plate 134. The ring block 10 drives the square rod 131 to rotate forward, the square rod 131 drives the triangular block 132 to rotate forward, and the triangular block 132 drives the scraping strip 133 to rotate forward, so that the scraping strip 133 can scrape off the waxy substance remaining on the wall of the downhole pipe during the rotation process, so as to avoid the waxy substance remaining on the wall of the downhole pipe during the use of the pipeline unblocking equipment, causing the downhole pipe to be easily blocked again.

[0027] Two vertical rods 136 are respectively passed through and fixed on the top surfaces of the two blocking blocks 135, and two arc-shaped spring pieces 137 are respectively embedded in the bottom of the outer walls of the two vertical rods 136. A convex plate 138 is fixed to the bottom of the outer wall of the head shell 1, and the convex plate 138 is located below the groove plate 134. A number of protrusions are provided on the outer wall of the convex plate 138. The outer wall of the several protrusions of the convex plate 138 is on the movement trajectory of the outer walls of the two arc-shaped spring pieces 137. The arc-shaped spring piece 137 hits the protrusions of the convex plate 138 during the rotation process, and the arc-shaped spring piece 137 is deformed. The vibration generated by the deformation of the arc-shaped spring piece 137 is transmitted to the vertical rod 136, and the vertical rod 136 transmits the vibration to the scraping bar 133, so that the scraping bar 133 vibrates to scrape off the waxy substance remaining on the wall of the downhole pipeline, so as to avoid the waxy substance firmly adhering to the wall of the downhole pipeline during the use of the pipeline unblocking equipment, resulting in poor scraping effect of the equipment.

[0028] Two round pieces 141 are fixed to the bottom surfaces of the two vertical rods 136 respectively, two straight rods 142 are fixed in the middle of the bottom surfaces of the two round pieces 141 respectively, two square plates 143 are fixed to the bottom surfaces of the two straight rods 142 respectively, and an annular plate 144 is fixed to the bottom surfaces of the two square plates 143. The annular plate 144 is located below the four electric nozzles 9. During the rotation of the annular plate 144, the annular plate 144 rests on the waxy substance, so that the waxy substance will not be squeezed onto the electric nozzle 9, thereby avoiding the waxy substance squeezing onto the electric nozzle 9 during the use of the pipeline unblocking equipment, causing the electric nozzle 9 to be easily damaged.

[0029] Two double-arc plates 145 are fixed to the top surface of the annular plate 144, and two inclined plates 146 are fixed to the top surfaces of the two double-arc plates 145 respectively. The two inclined plates 146 are respectively located in front of the two straight rods 142, and two short rods 147 are respectively fixed to the top of the outer walls of the two inclined plates 146. The two short rods 147 are respectively fixed to the bottom of the outer walls of the two scrapers 133. The double-arc plates 145 drive the inclined plates 146 to rotate forward, and the inclined plates 146 drive the short rods 147 to rotate forward. The short rods 147 rotate against the scraper bar 133 to prevent the scraper bar 133 from being damaged due to deformation caused by the rotation of the pipeline unblocking equipment during use.

[0030] A method for using a coiled tubing unblocking device comprises the following steps: S1. The operator lifts the head shell 1 with the handle and drops it into the downhole pipeline. The shaft of the motor 18 drives the I-shaped roller 15 to reverse, and the I-shaped roller 15 releases the coiled tubing 2. The head shell 1 reaches the blocked part of the downhole pipeline. S2, the thin rod 11 drives the triangular piece 12 to rotate forward, the triangular piece 12 drills the blocked part of the underground pipeline, and the electric nozzle 9 sprays water to flush the waxy substance on the pipeline wall; S3. The triangular block 132 drives the scraper 133 to rotate. During the rotation, the scraper 133 scrapes away the waxy substance remaining on the wall of the downhole pipe; S4, the arc-shaped spring piece 137 hits the bump of the convex plate 138 during the rotation process, and the vibration generated by the deformation of the arc-shaped spring piece 137 is transmitted to the scraper 133; S5. During the rotation of the ring plate 144, the ring plate 144 rests on the waxy substance, so that the waxy substance does not squeeze onto the electric spray head 9; S6. The inclined plate 146 drives the short rod 147 to rotate forward, and the short rod 147 rotates against the scraper bar 133.

[0031] Working principle: while the groove shell 8 drives the ring block 10 to rotate forward, the ring block 10 drives the square rod 131 to rotate forward, the square rod 131 drives the triangular block 132 to rotate forward, the triangular block 132 drives the scraper 133 to rotate forward, the scraper 133 drives the clamping block 135 to rotate forward, and the clamping block 135 rotates in the slide groove of the groove plate 134, so that the scraper 133 scrapes off the waxy substance remaining on the wall of the downhole pipeline during the rotation process, preventing the waxy substance from remaining on the wall of the downhole pipeline when the equipment is in use, thereby avoiding the waxy substance remaining on the wall of the downhole pipeline during the use of the pipeline unblocking equipment, causing the downhole pipeline to be easily blocked again.

[0032] When the scraper bar 133 drives the block 135 to rotate forward, the block 135 drives the vertical rod 136 to rotate forward, and the vertical rod 136 drives the arc-shaped spring piece 137 to rotate forward. The arc-shaped spring piece 137 hits the convex block of the convex plate 138 during the rotation, and the arc-shaped spring piece 137 is deformed. The vibration generated by the deformation of the arc-shaped spring piece 137 is transmitted to the vertical rod 136, and the vertical rod 136 transmits the vibration to the block 135, and the block 135 transmits the vibration to the scraper bar 133, so that the scraper bar 133 vibrates to scrape off the waxy substance remaining on the wall of the downhole pipeline, preventing the waxy substance from firmly adhering to the wall of the downhole pipeline when the equipment is in use, thereby avoiding the problem of poor scraping effect of the equipment caused by the waxy substance firmly adhering to the wall of the downhole pipeline during use of the road blocking equipment.

[0033] While the block 135 drives the vertical rod 136 to rotate forward, the vertical rod 136 drives the circular plate 141 to rotate forward, the circular plate 141 drives the straight rod 142 to rotate forward, the straight rod 142 drives the square plate 143 to rotate forward, and the square plate 143 drives the annular plate 144 to rotate forward. During the rotation of the annular plate 144, the annular plate 144 rests on the waxy substance, so that the waxy substance will not be squeezed onto the electric sprinkler 9, preventing the waxy substance from being squeezed onto the electric sprinkler 9 when the equipment is in use, thereby avoiding the problem of the waxy substance being squeezed onto the electric sprinkler 9 during the use of the pipeline unblocking equipment, causing the electric sprinkler 9 to be easily damaged.

[0034] While the square plate 143 drives the annular plate 144 to rotate forward, the annular plate 144 drives the double-arc plate 145 to rotate forward, the double-arc plate 145 drives the inclined plate 146 to rotate forward, and the inclined plate 146 drives the short rod 147 to rotate forward. The short rod 147 rotates against the scraper bar 133 to prevent the scraper bar 133 from being deformed during rotation when the equipment is in use, thereby avoiding the problem of damage to the scraper bar 133 caused by deformation during rotation during use of the pipeline unblocking equipment.

[0035] The present invention provides a coiled tubing unblocking device and method for use. While there are numerous methods and approaches for implementing this technical solution, the foregoing description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A pipe unblocking device for a coiled tubing, comprising a head shell (1), wherein a coiled tubing (2) is passed through and fixed to the top surface of the head shell (1), and characterized in that: A chamber is provided above the interior of the head shell (1), a U-shaped frame (3) is fixed below the inner wall of the head shell (1), a micro servo motor (4) is passed through and fixedly installed in the middle of the bottom surface of the U-shaped frame (3), the top surface of the micro servo motor (4) is fixedly connected to the inner wall of the head shell (1), a round rod (5) is passed through and rotatably installed at the bottom end of the interior of the head shell (1), the top end of the round rod (5) is fixedly connected to the bottom surface of the rotating shaft of the micro servo motor (4), an I-shaped disk (6) is fixed to the bottom surface of the head shell (1), and two liquid guide tubes (7) are passed through and fixed at the bottom end of the interior of the chamber of the head shell (1). The two liquid guide tubes (7) pass through and are fixed to the bottom end of the U-shaped frame (3), and the two liquid guide tubes (7) pass through and are fixed to the top surface of the I-shaped plate (6). A groove shell (8) is rotatably mounted on the inner wall of the I-shaped plate (6), and the inner bottom end of the groove shell (8) is fixedly connected to the bottom end of the round rod (5). Four electric spray heads (9) are passed through and fixedly mounted on the outer wall of the groove shell (8). A ring block (10) is fixed to the bottom surface of the groove shell (8), and four thin rods (11) are fixed to the outer wall of the ring block (10). Four triangular pieces (12) are respectively fixed to the outer walls of the four thin rods (11).

2. The coiled tubing unblocking device according to claim 1, characterized in that: The outer wall of the continuous oil pipe (2) is wound around the inner wall of the I-shaped roller (15), and a rotating shaft is provided in the middle of the front and back surfaces of the I-shaped roller (15). The outer walls of the two rotating shafts of the I-shaped roller (15) are rotatably connected to the inner wall of the base frame (16). A bottom plate (17) is fixed on the front of the base frame (16), and a motor (18) is fixedly installed on the top surface of the bottom plate (17). The back of the rotating shaft of the motor (18) is fixedly connected to the front of the rotating shaft of the I-shaped roller (15). A connecting block (19) is fixed on the right side of the top surface of the bottom plate (17), and the inner wall of the connecting block (19) is fixedly connected to the outer wall of the continuous oil pipe (2). A bracket (20) is fixed on the left side of the top surface of the bottom plate (17), and a head shell (1) is placed on the top surface of the bracket (20).

3. The coiled tubing unblocking device according to claim 2, characterized in that: A handle is provided on the top of the outer wall of the head shell (1), and a circular block is provided on the right side of the head shell (1). The circular block of the head shell (1) is clamped on the outer wall of the bracket (20).

4. The coiled tubing unblocking device according to claim 3, characterized in that: The two liquid guide tubes (7) are located on the left and right sides of the micro servo motor (4), and the four triangular pieces (12) are located in front of the outer wall of the groove shell (8).

5. The coiled tubing unblocking device according to claim 4, characterized in that: The bottom surface of the ring block (10) is provided with a rotating wall device (13), and the rotating wall device (13) is used to scrape waxy substances on the inner wall of the pipeline. The bottom surface of the rotating wall device (13) is provided with an anti-pressure device (14), and the anti-pressure device (14) is used to reduce the electric spray head (9) from being squeezed by the waxy substances.

6. The coiled tubing unblocking device according to claim 5, characterized in that: A square rod (131) is fixed to the bottom surface of the ring block (10), and triangular blocks (132) are fixed to both ends of the square rod (131). Two scraping strips (133) are embedded in the two triangular blocks (132) on the sides away from each other. A groove plate (134) is fixed to the bottom of the outer wall of the head shell (1), and the top and bottom surfaces of the groove plate (134) are provided with sliding grooves. Two clamping blocks (135) are fixed to the tops of the two scraping strips (133) on the sides away from each other, and the outer walls of the two clamping blocks (135) are slidably connected to the inner walls of the two sliding grooves of the groove plate (134).

7. The coiled tubing unblocking device according to claim 6, characterized in that: Two vertical rods (136) are respectively passed through and fixed on the top surfaces of the two clamping blocks (135), and two arc-shaped spring pieces (137) are respectively embedded in the bottom of the outer walls of the two vertical rods (136). A convex disc (138) is fixed to the bottom of the outer wall of the head shell (1), and the convex disc (138) is located below the groove disc (134). The outer wall of the convex disc (138) is provided with a plurality of convex blocks, and the outer wall of the plurality of convex blocks of the convex disc (138) is located on the movement trajectory of the outer walls of the two arc-shaped spring pieces (137).

8. The coiled tubing unblocking device according to claim 7, characterized in that: Two circular plates (141) are fixed to the bottom surfaces of the two vertical rods (136), two straight rods (142) are fixed in the middle of the bottom surfaces of the two circular plates (141), two square plates (143) are fixed to the bottom surfaces of the two straight rods (142), and an annular plate (144) is fixed to the bottom surfaces of the two square plates (143). The annular plate (144) is located below the four electric spray heads (9).

9. The coiled tubing unblocking device according to claim 8, characterized in that: Two double-arc plates (145) are fixed to the top surface of the ring plate (144), and two inclined plates (146) are fixed to the top surfaces of the two double-arc plates (145). The two inclined plates (146) are respectively located in front of the two straight rods (142). Two short rods (147) are respectively fixed to the top of the outer walls of the two inclined plates (146), and the two short rods (147) are respectively fixedly connected to the bottom of the outer walls of the two scraper strips (133).

10. A method for using a coiled tubing unblocking device, using the coiled tubing unblocking device according to claim 9, characterized in that: The following steps are involved: S1. The operator lifts the head shell (1) with a handle and puts the head shell (1) into the downhole pipeline. The rotating shaft of the motor (18) drives the I-shaped roller (15) to reverse, and the I-shaped roller (15) releases the coiled tubing (2). The head shell (1) reaches the blocked part of the downhole pipeline. S2, the thin rod (11) drives the triangular piece (12) to rotate forward, the triangular piece (12) drills the blocked part of the underground pipeline, and the electric nozzle (9) sprays water to flush the waxy substance on the pipeline wall; S3, the triangular block (132) drives the scraper (133) to rotate, and during the rotation of the scraper (133), the scraper (133) scrapes away the waxy substance remaining on the wall of the downhole pipe; S4, the arc-shaped spring piece (137) hits the convex block of the convex disc (138) during the rotation process, and the vibration generated by the deformation of the arc-shaped spring piece (137) is transmitted to the scraper (133); S5. During the rotation of the ring plate (144), the ring plate (144) rests on the waxy substance, so that the waxy substance does not squeeze the electric spray head (9); S6, the inclined plate (146) drives the short rod (147) to rotate forward, and the short rod (147) rotates against the scraper (133).

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