CN111379540B

CN111379540B - Mechanical pipe-dredging tool for oil-water well

Info

Publication number: CN111379540B
Application number: CN201811646822.1A
Authority: CN
Inventors: 刘忠玮; 盖旭波; 宋祖厂; 赖学明; 刘扬; 张津红; 汪文昌; 杨海超; 刘永河
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2021-11-30
Anticipated expiration: 2038-12-29
Also published as: CN111379540A

Abstract

The invention discloses a mechanical pipe dredging tool for an oil-water well, and belongs to the field of oil-gas field equipment. The device includes: the second end of the pull rod (26) is positioned in the upper outer sleeve (27), a second outer edge (431) arranged on the first end of the first pressing cap (43) is clamped on the first end of the upper outer sleeve (27), and the part of the first pressing cap (43) except the second outer edge (431) is connected with the inner wall of the upper outer sleeve (27); the second end (271) of the upper outer sleeve (27) is connected with the first end (21) of the core bar (2); the first mounting part (28) is connected with the side wall of a first blind hole formed in the second end of the pull rod (26), the second mounting part (29) is connected with the inner wall of the upper outer sleeve (27), the second end of the first pin (30) is located in the second through hole, the second end of the second pin (38) is located in the first groove, and the second end of the third pin (39) is located in the second groove. The invention can improve the pipe-through efficiency and the unblocking efficiency.

Description

Mechanical pipe-dredging tool for oil-water well

Technical Field

The invention relates to the field of oil-gas field equipment, in particular to a mechanical pipe-penetrating tool for an oil-water well.

Background

In the development process of oil and gas fields, scaling phenomena often occur in oil and water wells, and in order to ensure normal use of the oil and water wells, the inner walls of the oil and water wells need to be descaled so as to realize pipe dredging.

In the related art, as shown in fig. 1, the pipe passing tool includes a weight bar 01, a suspension joint 02, a rotary joint 03, and a spiral guide cone 04. The suspension joint 02 is provided with a first through hole and a second through hole which are communicated with each other in the axial direction, and the aperture of the first through hole is larger than that of the second through hole. The first end 011 of the weighting rod 01 is positioned in the first through hole and connected with the first through hole, the first part of the rotary joint 03 is positioned in the first through hole, the first part of the rotary joint 03 is positioned between the second through hole and the first end 011 of the weighting rod 01, the size of the first part of the rotary joint 03 is larger than the aperture of the second through hole and smaller than the aperture of the first through hole, the second part of the rotary joint 03 is positioned in the second through hole, and the second part of the rotary joint 03 is connected with the spiral guide cone 04. The spiral guide cone 04 is provided with a plurality of spiral pieces, and a spiral discharge groove is formed between every two spiral pieces in the plurality of spiral pieces. After the steel wire is connected to the second end 012 of the weight bar 01, the pipe-guiding tool can be lowered into the oil-water well through the steel wire, and when the spiral guide cone 04 contacts with the liquid in the oil-water well and continues to move downward, the liquid in the oil-water well flows along the spiral discharge groove, thereby driving the spiral guide cone 04 and the rotary joint 03 to rotate relative to the suspension joint 02. When the spiral guide cone 04 rotates, the spiral sheet arranged on the spiral guide cone 04 can scrape dirt on the inner wall of the oil-water well, so that a through pipe is realized.

However, liquid often exists in the oil-water well, and the pipe-through tool needs to overcome the resistance of the liquid in the oil-water well when falling, so that the impact force generated when the weighting rod 01 falls can be reduced, and the helical blade arranged on the helical guide cone 04 is not easy to scrape off the dirt on the inner wall of the oil-water well, so that the pipe-through efficiency is low. In addition, the pipe-through tool has single function, and when the pipe-through tool is blocked due to serious dirt on the inner wall of the oil-water well, the pipe-through tool blocked in the oil-water well can be pulled out of the oil-water well only by applying upward pulling force to the steel wire. However, the pipe-penetrating tool clamped in the oil-water well cannot be smoothly pulled out of the oil-water well only by hard pulling the steel wire, so that the clamping-releasing efficiency is low.

Disclosure of Invention

The embodiment of the invention provides a mechanical pipe-penetrating tool for an oil-water well, which can solve the problems of low pipe-penetrating efficiency and low unblocking efficiency in the related technology. The technical scheme is as follows:

in one aspect, a mechanical pipe-penetrating tool for oil-water wells is provided, the device comprises: rope socket, prevent changeing mechanism, rotatory descaling mechanism and jarring mechanism, prevent changeing the mechanism and include core bar, lower overcoat, first upper bracket, second upper bracket, first lower carriage, second lower carriage, first runner and the runner is prevented to the second, rotatory descaling mechanism includes guide pin bushing, round pin axle, rotator and descaling body, the jar strikes the mechanism and includes: the device comprises a pull rod, an upper outer sleeve, a first mounting part, a second mounting part, a first pin, a second pin, a third pin, a first spring, a second spring and a first pressing cap;

the rope cap is used for being connected with a steel wire on a test vehicle, the first end of the pull rod is connected with the rope cap, the second end of the pull rod is positioned in the upper outer sleeve, the second end of the pull rod is provided with a first outer edge, the first end of the first pressing cap is provided with a second outer edge, the second outer edge is clamped on the first end of the upper outer sleeve, the part of the first pressing cap except the second outer edge is clamped between the inner wall of the upper outer sleeve and the outer wall of the pull rod, the part of the first pressing cap except the second outer edge is connected with the inner wall of the upper outer sleeve, and the second end of the upper outer sleeve is connected with the first end of the core rod;

the second end of the pull rod is provided with a first blind hole in the axial direction, the first mounting part is positioned in the first blind hole and connected with the side wall of the first blind hole, the first mounting part is provided with a first through hole in the axial direction, the first through hole comprises a first sub through hole and a second sub through hole, and the first sub through hole is positioned between the bottom of the first blind hole and the second sub through hole; the first end of the first pin is positioned in the first sub-through hole, the second end of the first pin penetrates through the second sub-through hole, a third outer edge is arranged on the first end of the first pin, the outer diameter of the third outer edge is smaller than the aperture of the first sub-through hole and larger than the aperture of the second sub-through hole, and a first groove and a second groove are arranged on the side wall of the first pin, close to the second end of the first pin;

the second mounting part is positioned in the upper outer sleeve and between the second end of the pull rod and the first end of the core rod, and the second mounting part is connected with the inner wall of the upper outer sleeve; the second mounting part is provided with a second through hole in the axial direction, the second end of the first pin is positioned in the second through hole, the second mounting part is provided with a third through hole and a fourth through hole in the radial direction, and the third through hole and the fourth through hole are communicated with the second through hole; the third through hole comprises a third sub through hole and a fourth sub through hole, the third sub through hole is positioned between the fourth sub through hole and the second through hole, the fourth through hole comprises a fifth sub through hole and a sixth sub through hole, and the fifth sub through hole is positioned between the sixth sub through hole and the second through hole;

a fourth outer edge is arranged on the side wall of the second pin, the first end and the fourth outer edge of the second pin are both positioned in the fourth sub through hole, the first spring is sleeved on a position, between the first end and the fourth outer edge of the second pin, in the side wall of the second pin, the end face of the second end of the second pin is an arc face, and the second end of the second pin passes through the third sub through hole and then is positioned in the first groove; a fifth outer edge is arranged on the side wall of the third pin, the first end and the fifth outer edge of the third pin are both positioned in the sixth sub through hole, the second spring is sleeved on a position, between the first end and the fifth outer edge of the third pin, in the side wall of the third pin, the end face of the second end of the third pin is an arc face, and the second end of the third pin passes through the fifth sub through hole and then is positioned in the second groove;

the second end of the core bar is positioned in the lower outer sleeve, the first end of the first upper support and the first end of the second upper support are both connected with the second end of the core bar, the first end of the first lower support and the first end of the second lower support are both connected with the inner wall of the lower outer sleeve, the second end of the first upper support and the second end of the first lower support are both movably connected with the first anti-rotation wheel, the second end of the second upper support and the second end of the second lower support are both movably connected with the second anti-rotation wheel, a first sliding groove and a second sliding groove which are opposite in position are formed in the side wall of the lower outer sleeve, the first anti-rotation wheel can penetrate through the first sliding groove, and the second anti-rotation wheel can penetrate through the second sliding groove;

the first end of the guide sleeve is connected with the first end of the lower outer sleeve, and a spiral groove is formed in the side wall of the guide sleeve;

the first end of the rotating body is located in the guide sleeve, the second end of the rotating body is connected with the descaling body, a fifth through hole is formed in the position, close to the first end of the rotating body, on the side wall of the rotating body, and after the pin shaft penetrates through the fifth through hole, the two ends of the pin shaft are located in the spiral grooves.

Optionally, the rotary descaling mechanism further comprises: the second end of the guide sleeve is provided with a sixth outer edge;

the sheath is sleeved on the guide sleeve, and the sheath is contacted with the sixth outer edge.

Optionally, the rotary descaling mechanism further comprises: the second end of the guide sleeve is provided with a second blind hole in the longitudinal direction;

the third spring with the first end of rotator all is located in the second blind hole, just the third spring sets up the first end of rotator with between the bottom of second blind hole.

Optionally, the apparatus further comprises a hydraulic thrust mechanism, the hydraulic thrust mechanism comprising: a rubber cylinder core and a rubber cylinder;

the rubber sleeve is sleeved on the rubber sleeve core, the first end of the rubber sleeve core is connected with the second end of the rotating body, and the second end of the rubber sleeve core is connected with the descaling body.

Optionally, a steel skeleton is arranged on the inner wall of the rubber cylinder.

Optionally, the number of the glue cartridges is greater than or equal to 2, and the apparatus further includes: a spacer;

the rubber cylinder core is sleeved with the spacer, and the spacer is arranged between every two adjacent rubber cylinders in at least two rubber cylinders.

Optionally, a sixth through hole is arranged in the rotating body in the transverse direction at a position close to the second end of the rotating body, and a third blind hole is arranged in the longitudinal direction; the rubber cylinder core is provided with a seventh through hole in the longitudinal direction; the hydraulic thrust mechanism further includes: the connecting body, the ball seat, the valve ball, the fourth spring and the second pressing cap;

the sixth through hole is communicated with the third blind hole, the third blind hole is communicated with the seventh through hole, and the ball seat is connected with a part, close to the second end of the rubber cylinder core, in the seventh through hole;

the first end of the connecting body is connected with the second end of the rubber cylinder core, and the second end of the connecting body is connected with the descaling body;

the connecting body is provided with a fourth blind hole in the longitudinal direction, the fourth blind hole is communicated with the seventh through hole, the fourth spring is positioned in the fourth blind hole, the first end of the fourth spring is contacted with the bottom of the fourth blind hole, the part of the second pressing cap except the outer edge of the second pressing cap is positioned in the fourth spring, the outer edge of the second pressing cap is contacted with the second end of the fourth spring, and the valve ball is positioned between the ball seat and the second pressing cap;

and two water outlet grooves with opposite positions are arranged on the side wall of the connecting body, and the two water outlet grooves are communicated with the fourth blind hole.

Optionally, the descaling body comprises descaling pieces and a fixed shaft;

the fixed shaft is connected with the second end of the connecting body, and the descaling pieces are connected with the side wall of the fixed shaft.

Optionally, the tapping mechanism further comprises: a fifth spring;

the fifth spring is sleeved on the core rod, the first end of the fifth spring is in contact with the second end of the upper outer sleeve, and the second end of the fifth spring is in contact with the second end of the lower outer sleeve.

Optionally, the tapping mechanism further comprises: a sixth spring;

the sixth spring is sleeved on the first pin, and is located between the second sub-through hole and the third outer edge.

Optionally, go up on the lateral wall of overcoat be close to be provided with the eighth through-hole on the position of the second end of going up the overcoat, be provided with the fifth blind hole on the outer wall of second installation department, the mechanism of strikeing still includes: stabilizing the nail;

one end of the stable nail penetrates through the eighth through hole and then is located in the fifth blind hole.

Optionally, the tapping mechanism further comprises: an upper joint;

the first end of the upper joint is connected with the rope cap, and the second end of the upper joint is connected with the first end of the pull rod.

Optionally, the tapping mechanism further comprises: a weight bar;

the first end of the weighting rod is connected with the rope cap, and the second end of the weighting rod is connected with the first end of the pull rod.

The technical scheme provided by the embodiment of the invention can at least bring the following beneficial effects: in the embodiment of the invention, when the mechanical pipe-through tool for the oil-water well encounters resistance (the descaling body is blocked by dirt in the oil-water well) in the process of descending into the oil-water well, the descaling body and the rotating body stop moving, but the core rod, the lower outer sleeve and the guide sleeve still continue to move downwards under the action of gravity and inertia. The second end of the guide sleeve can be hindered by liquid in the oil-water well in the process of continuously moving downwards, and the second end of the core rod is located in the lower outer sleeve, so that the downward moving speed of the core rod is higher than the downward moving speed of the guide sleeve and the lower outer sleeve connected with the guide sleeve, the core rod can move downwards in the outer sleeve, the first upper support and the first lower support are close to each other, the second upper support and the second lower support are close to each other, an included angle can be formed between the second end of the first upper support and the second end of the first lower support, the first anti-rotation wheel is driven to move in the direction far away from the second anti-rotation wheel, and an included angle can be formed between the second end of the second upper support and the second end of the second lower support, and the second anti-rotation wheel is driven to move in the direction far away from the first anti-rotation wheel. When the first anti-rotation wheel and the second anti-rotation wheel are far away from each other, the first anti-rotation wheel can penetrate through the first sliding groove and continue to move in the direction far away from the second anti-rotation wheel, and the second anti-rotation wheel can penetrate through the second sliding groove and continue to move in the direction far away from the first anti-rotation wheel. At the moment, the first anti-rotation wheel is clamped in the first sliding groove, and the second anti-rotation wheel is clamped in the second sliding groove, so that the core rod, the lower outer sleeve and the guide sleeve cannot rotate when continuously moving downwards, and the steel wire connected with the oil-water well mechanical pipe tool can be prevented from being wound on a rope cap of the oil-water well mechanical pipe tool after being rotated. Because be provided with the helicla flute on the lateral wall of guide pin bushing, be provided with the fifth through-hole on the lateral wall of rotator near the position of the first end of rotator, the round pin axle passes the both ends of round pin axle and all is located the helicla flute behind the fifth through-hole, so when the guide pin bushing continues downstream and the rotator stop moving, because the guide pin bushing can not rotate, so the both ends of round pin axle can upwards slide in the helicla flute, the round pin axle can rotate this moment, thereby the round pin axle can drive the rotator and rotate, and then the rotator can drive the descaling body and rotate. The descaling body can carry out the rotary cutting to the dirt on the wall of a well of oil-water well at rotatory in-process, even if the dirt of comparison hardness, also can be got rid of after the rotary cutting through the descaling body to siphunculus efficiency has been improved. In addition, when the descaling body can not completely remove dirt on the well wall of the oil-water well after one-time rotary cutting, the mechanical pipe penetrating tool of the oil-water well can be pulled upwards through a steel wire connected with the test vehicle, so that the core rod, the lower outer sleeve and the guide sleeve all move upwards. When the guide sleeve upwards moves and the rotator stops moving, the guide sleeve cannot rotate, so that the two ends of the pin shaft can slide downwards in the spiral groove, the pin shaft can rotate (rotate in the opposite direction) again at the moment, the pin shaft can drive the rotator to rotate (rotate in the opposite direction) again, and the rotator can drive the descaling body to rotate (rotate in the opposite direction) again to rotationally cut dirt on the well wall of the oil-water well. The process of pulling up and moving down can be repeated for a plurality of times, and the dirt on the well wall of the oil-water well can be easily removed under the rotating scraping action of the descaling body in the forward and reverse directions for a plurality of times, so that the pipe passing efficiency is further improved. And when the mechanical pipe-through tool of the oil-water well is pulled upwards through the steel wire connected with the test vehicle, the steel wire is used to pull the pull rod upwards through the rope cap, and the first installation part can move upwards under the driving of the pull rod. When the first mounting part moves upwards to the third outer edge arranged on the first end of the first pin and is clamped on the second sub through hole, the first mounting part is limited by the third outer edge to stop moving upwards because the movement of the first pin is limited by the second pin and the third pin. When the pull rod is lifted by adding force, the first installation part moves upwards rapidly under the driving of the pull rod, and the first pin at the third outer edge can bear an upward pulling force, so that the groove wall of the first groove arranged on the side wall of the first pin can extrude the second end of the second pin, the second pin compresses the first spring and moves towards the direction far away from the second through hole, and the groove wall of the second groove arranged on the side wall of the first pin can extrude the second end of the third pin, so that the third pin compresses the second spring and moves towards the direction far away from the second through hole. When the second end of the second pin is no longer located in the first groove and the second end of the third pin is no longer located in the second groove, the movement of the first pin is no longer limited by the second pin and the third pin, the movement of the first mounting portion is no longer limited by the third outer edge on the first pin, and the movement of the pull rod is no longer limited by the first mounting portion, i.e., the pull rod is unlocked. The pull rod will then accelerate upwards. When the first outer edge arranged on the second end of the pull rod moves to the second end of the first pressing cap and continues to move upwards, the first outer edge collides with the second end of the first pressing cap and generates large instantaneous impact force. Under the action of the instantaneous impact force, the upper outer sleeve can move upwards rapidly, so that the core rod connected with the upper outer sleeve can be driven to move upwards rapidly. When the core bar moves upwards rapidly, the core bar is connected with the lower outer sleeve through the first upper support, the first lower support, the second upper support and the second lower support, so that the lower outer sleeve can also move upwards rapidly, and then the guide sleeve connected with the lower outer sleeve can be driven to move upwards rapidly. And because the pin shaft penetrates through the fifth through hole arranged on the rotating body, and the two ends of the pin shaft are both positioned in the spiral grooves arranged on the guide sleeve, when the guide sleeve moves upwards rapidly, the rotating body and the descaling body connected with the rotating body can move upwards rapidly, and the descaling body can remove dirt blocking the oil-water well mechanical pipe-through tool more thoroughly, so that the pipe-through efficiency is further improved while the oil-water well mechanical pipe-through tool is effectively unblocked.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pipe-through tool provided in the related art;

FIG. 2 is a schematic structural diagram of a mechanical pipe-passing tool for an oil-water well according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a guide sleeve in a mechanical pipe-passing tool for an oil-water well according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another mechanical pipe-passing tool for oil-water wells according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another mechanical pipe-passing tool for oil-water wells according to an embodiment of the present invention.

Reference numerals:

the related technology comprises the following steps:

01: weight bar, 02: suspension joint, 03: rotary joint, 04: spiral guide cone, 011: first end of the weight bar, 012: a second end of the weighted rod.

The embodiment of the invention comprises the following steps:

1: rope cap, 2: core bar, 3: lower outer sleeve, 4: first upper bracket, 5: second upper bracket, 6: first lower bracket, 7: second lower bracket, 8: first anti-rotation wheel, 9: second anti-rotation wheel, 10: guide sleeve, 11: pin shaft, 12: rotating body, 13: descaling agent, 14: sheath, 15: third spring, 16: rubber cylinder core, 17: rubber cylinder, 18: spacer, 19: linker, 20: ball seat, 21: first end of core rod, 22: second end of core rod, 23: valve ball, 24: fourth spring, 25: second press cap, 26: a pull rod, 27: upper outer sleeve, 28: first mounting portion, 29: second mounting portion, 30: first pin, 31: first slide groove, 32: second slide groove, 33: first end of lower casing, 34: fifth spring, 38: second pin, 39: third pin, 40: second end of lower casing, 41: first spring, 42: second spring, 43: first press cap, 44: sixth spring, 45: nail stabilizing, 101: first end of guide sleeve, 102: helical groove, 103: sixth outer edge, 121: first end of the rotating body, 122: second end of the rotating body, 123: sixth through hole, 124: third blind hole, 131: descaling sheet, 132: fixed shaft, 161: first end of the cartridge core, 162: second end of the cartridge core, 163: seventh through hole, 171: steel skeleton, 191: first end of the connector, 192: second end of the connector, 193: outlet tank, 241: first end of fourth spring, 242: second end of fourth spring, 261: first end of the pull rod, 262: first outer edge, 271: second end of upper jacket, 301: third outer edge, 381: fourth outer edge, 391: fifth outer edge, 431: a second outer edge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 is a schematic structural diagram of a mechanical pipe-passing tool for an oil-water well according to an embodiment of the present invention. Referring to fig. 2, the apparatus includes: rope socket 1, prevent changeing the mechanism, rotatory descaling mechanism and the mechanism of shocking, prevent changeing the mechanism and include core bar 2, lower overcoat 3, first upper bracket 4, second upper bracket 5, first lower carriage 6, second lower carriage 7, first runner 8 and the runner 9 is prevented to the second, and rotatory descaling mechanism includes guide pin bushing 10, round pin axle 11, rotator 12 and descaling body 13, and the mechanism of shocking includes: the pull rod 26, the upper outer sleeve 27, the first mounting portion 28, the second mounting portion 29, the first pin 30, the second pin 38, the third pin 39, the first spring 41, the second spring 42, and the first press cap 43.

The rope cap 1 is used for being connected with a steel wire on a test vehicle, the first end 261 of the pull rod 26 is connected with the rope cap 1, the second end of the pull rod 26 is positioned in the upper outer sleeve 27, the second end of the pull rod 26 is provided with a first outer edge 262, the first end of the first press cap 43 is provided with a second outer edge 431, the second outer edge 431 is clamped on the first end of the upper outer sleeve 27, the part of the first press cap 43 except the second outer edge 431 is clamped between the inner wall of the upper outer sleeve 27 and the outer wall of the pull rod 26, the part of the first press cap 43 except the second outer edge 431 is connected with the inner wall of the upper outer sleeve 27, and the second end 271 of the upper outer sleeve 27 is connected with the first end 21 of the core rod 2; a first blind hole is axially formed in the second end of the pull rod 26, a first mounting part 28 is positioned in the first blind hole and connected with the side wall of the first blind hole, a first through hole is axially formed in the first mounting part 28 and comprises a first sub-through hole and a second sub-through hole, and the first sub-through hole is positioned between the bottom of the first blind hole and the second sub-through hole; the first end of the first pin 30 is positioned in the first sub through hole, the second end of the first pin 30 passes through the second sub through hole, a third outer edge 301 is arranged on the first end of the first pin 30, the outer diameter of the third outer edge 301 is smaller than the aperture of the first sub through hole and larger than the aperture of the second sub through hole, and a first groove and a second groove are arranged on the side wall of the first pin 30, close to the second end of the first pin 30; the second mounting part 29 is positioned in the upper outer sleeve 27 and between the second end of the pull rod 26 and the first end 21 of the core rod 2, and the second mounting part 29 is connected with the inner wall of the upper outer sleeve 27; the second mounting part 29 is provided with a second through hole in the axial direction, the second end of the first pin 30 is positioned in the second through hole, the second mounting part 29 is provided with a third through hole and a fourth through hole in the radial direction, and the third through hole and the fourth through hole are both communicated with the second through hole; the third through hole comprises a third sub through hole and a fourth sub through hole, the third sub through hole is positioned between the fourth sub through hole and the second through hole, the fourth through hole comprises a fifth sub through hole and a sixth sub through hole, and the fifth sub through hole is positioned between the sixth sub through hole and the second through hole; a fourth outer edge 381 is arranged on the side wall of the second pin 38, the first end and the fourth outer edge 381 of the second pin 38 are both located in the fourth sub through hole, the first spring 41 is sleeved on the portion, located between the first end and the fourth outer edge 381 of the second pin 38, in the side wall of the second pin 38, the end face of the second end of the second pin 38 is an arc face, and the second end of the second pin 38 is located in the first groove after penetrating through the third sub through hole; a fifth outer edge 391 is arranged on the side wall of the third pin 39, the first end and the fifth outer edge 391 of the third pin 39 are both located in the sixth sub through hole, the second spring 42 is sleeved on a position, located between the first end and the fifth outer edge 391, of the third pin 39 in the side wall of the third pin 39, the end face of the second end of the third pin 39 is an arc face, and the second end of the third pin 39 is located in the second groove after passing through the fifth sub through hole.

The second end 22 of the core rod 2 is positioned in the lower outer sleeve 3, the first end of the first upper support 4 and the first end of the second upper support 5 are both connected with the second end 22 of the core rod 2, the first end of the first lower support 6 and the first end of the second lower support 7 are both connected with the inner wall of the lower outer sleeve 3, the second end of the first upper support 4 and the second end of the first lower support 6 are both movably connected with the first anti-rotation wheel 8, the second end of the second upper support 5 and the second end of the second lower support 7 are both movably connected with the second anti-rotation wheel 9, a first sliding groove 31 and a second sliding groove 32 which are opposite in position are arranged on the side wall of the lower outer sleeve 3, the first anti-rotation wheel 8 can penetrate through the first sliding groove 31, and the second anti-rotation wheel 9 can penetrate through the second sliding groove 32; the first end 101 of the guide sleeve 10 is connected with the first end 33 of the lower outer sleeve 3, and the side wall of the guide sleeve 10 is provided with a spiral groove 102; the first end 121 of the rotator 12 is located in the guide sleeve 10, the second end 122 of the rotator 12 is connected with the descaling body 13, a fifth through hole is formed in the side wall of the rotator 12, which is close to the first end 121 of the rotator 12, and both ends of the pin 11 are located in the spiral groove 102 after the pin 11 passes through the fifth through hole.

It should be noted that the structure of the cap for cord 1 may be similar to that of the cap for pen, the cap for cord 1 may be provided with a through hole in the longitudinal direction and a through hole in the transverse direction, respectively, and the through holes provided in the longitudinal direction of the cap for cord 1 are communicated with the through holes provided in the transverse direction of the cap for cord 1. In practical application, the first end of steel wire is connected on the test car, the second end of steel wire can pass rope socket 1 earlier and expose outside the outer wall of rope socket 1 behind the through-hole that sets up on horizontal, can tie a knot to the steel wire that exposes outside the outer wall of rope socket 1 afterwards, make it fix outside the outer wall of rope socket 1, in order to realize being connected between steel wire and the rope socket 1, and then realize being connected between steel wire and this oil-water well machinery siphunculus instrument. Therefore, the mechanical pipe-through tool for the oil-water well can be put into the oil-water well through the steel wire, and can also be pulled out.

In addition, the cap 1 may be provided with an internal thread, the first end 261 of the pull rod 26 may be provided with an external thread, and the first end 261 of the pull rod 26 and the cap 1 may be screwed through the internal thread and the external thread. The cross-section of the tie rod 26 may be circular in shape. The outer diameter of the first outer rim 262 disposed on the second end of the pull rod 26 may be slightly smaller than the inner diameter of the upper outer sleeve 27 and slightly larger than the inner diameter of the portion of the first pressing cap 43 except for the second outer rim 431, as long as it is ensured that the second end of the pull rod 26 can be just located in the upper outer sleeve 27, the pull rod 26 can move relative to the upper outer sleeve 27, and after the pull rod 26 moves upward to a certain extent, the first outer rim 262 can just be clamped on the second end of the first pressing cap 43, so that the moving range of the pull rod 26 in the upper outer sleeve 27 can be limited by the first pressing cap 43.

In addition, the outer diameter of the second outer rim 431 provided on the first end of the first press cap 43 may be slightly larger than the inner diameter of the upper outer sleeve 27, as long as the second outer rim 431 can be just clamped on the first end of the upper outer sleeve 27 after the connection of the parts of the first press cap 43 except the second outer rim 431 with the inner wall of the upper outer sleeve 27 is ensured. The connection between the first press cap 43 except the second outer rim 431 and the inner wall of the upper outer sleeve 27 may be a screw connection or the like.

In addition, the cross-sectional shape of the core rod 2 may be circular. The diameter of the core rod 2 may be slightly smaller than the inner diameter of the upper outer sleeve 27, so long as it is ensured that the first end 21 of the core rod 2 can be just inside the upper outer sleeve 27 and just connected with the second end 271 of the upper outer sleeve 27. The connection between the first end 21 of the core rod 2 and the second end 271 of the upper outer sleeve 27 can be a threaded connection or the like.

In addition, the size of the first blind hole can be set according to the size of the first mounting portion 28, as long as it is ensured that the first mounting portion 28 can be just inside the first blind hole and just can be connected with the side wall of the first blind hole. The connection between the first mounting portion 28 and the sidewall of the first blind hole may be a threaded connection or the like. The aperture of the first sub through hole in the first through hole provided in the axial direction of the first mounting portion 28 may be slightly larger than the outer diameter of the third outer rim 301 provided at the first end of the first pin 30, the aperture of the second sub through hole in the first through hole provided in the axial direction of the first mounting portion 28 may be slightly larger than the diameter of the portion of the first pin 30 except for the third outer rim 301, and may be slightly smaller than the outer diameter of the third outer rim 301, as long as it is ensured that after the second end of the first pin 30 passes through the first sub through hole and the second sub through hole, the third outer rim 301 provided at the first end of the first pin 30 may be located between the bottom of the first blind hole and the second sub through hole all the time.

In addition, the outer diameter of the second mounting portion 29 may be set according to the inner diameter of the upper outer casing 27, as long as it is ensured that the second mounting portion 29 can be just positioned in the upper outer casing 27 and just connected with the inner wall of the upper outer casing 27. The second mounting portion 29 may be coupled to the inner wall of the upper housing 27 by a screw coupling or the like. The diameter of the second through hole provided in the second mounting portion 29 in the axial direction may be slightly larger than the diameter of the first pin 30 except for the third outer edge 301, as long as it is ensured that the second end of the first pin 30 can be located in the second through hole and can move relative to the second through hole. The length of the third through hole provided in the radial direction of the second mounting portion 29 may be equal to or slightly greater than the length of the second pin 38, the aperture of the third sub through hole in the third through hole may be slightly greater than the diameter of the portion of the second pin 38 other than the fourth outer edge 381, and may be slightly smaller than the outer diameter of the fourth outer edge 381, as long as it is ensured that the first end and the fourth outer edge 381 of the second pin 38 may be always located in the fourth sub through hole after the second end of the second pin 38 sequentially passes through the fourth sub through hole and the third sub through hole. The length of the fourth through hole provided in the radial direction of the second mounting portion 29 may be equal to or slightly greater than the length of the third pin 39, the aperture of the fifth sub through hole in the fourth through hole may be slightly greater than the diameter of the portion of the third pin 39 other than the fifth outer edge 391, and may be slightly smaller than the outer diameter of the fifth outer edge 391, as long as it is ensured that the first end and the fifth outer edge 391 of the third pin 39 just can be always located in the sixth sub through hole after the second end of the third pin 39 sequentially passes through the sixth sub through hole and the fifth sub through hole.

In addition, the shape and size of the first groove may be set according to the shape and size of the second end of the second pin 38 as long as it is ensured that the second end of the second pin 38 can be located in the first groove right after passing through the fourth sub through-hole and the third sub through-hole. The shape and size of the second recess may be set according to the shape and size of the second end of the third pin 39 as long as it is ensured that the second end of the third pin 39 can be located in the second recess right after passing through the sixth and fifth sub through holes. In this manner, the movement of the first pin 30 can be restricted by the second pin 38 and the third pin 39. The positions of the first and second grooves on the side wall of the first pin 30 may be set according to actual conditions, and specifically, may be set according to the positions of the third and fourth through holes on the side wall of the second mounting portion 29.

In addition, the first upper bracket 4, the second upper bracket 5, the first lower bracket 6, and the second lower bracket 7 may have the same shape, and the cross-sectional shapes of the first upper bracket 4, the second upper bracket 5, the first lower bracket 6, and the second lower bracket 7 may be square, rectangular, and the like. A through hole may be provided at the first end of the first upper support 4 and the first end of the second upper support 5, respectively, and a groove may be provided at the second end 22 of the core rod 2, and two pairs of through holes may be provided at opposite positions on the side wall of the groove. A first end of the first upper support 4 and a first end of the second upper support 5 may be positioned in this recess, one screw may be passed through the through-hole provided on the first end of the first upper support 4 and one of the two pairs of through-holes, which are located opposite each other, to achieve the connection between the first end of the first upper support 4 and the second end 22 of the core rod 2, and another screw may be passed through the through-hole provided on the first end of the second upper support 5 and the other of the two pairs of through-holes, which are located opposite each other, to achieve the connection between the first end of the second upper support 5 and the second end 22 of the core rod 2.

In addition, a through hole may be respectively disposed at the first end of the first lower bracket 6 and the first end of the second lower bracket 7, two pairs of through holes may be disposed on the sidewall of the lower outer casing 3, the first end of the first lower bracket 6 and the first end of the second lower bracket 7 may be located in the lower outer casing 3, a screw may be passed through the through hole disposed at the first end of the first lower bracket 6 and one of the two pairs of through holes, and then fastened with a nut, so as to achieve connection between the first end of the first lower bracket 6 and the inner wall of the lower outer casing 3, and another screw may be passed through the through hole disposed at the first end of the second lower bracket 7 and the other of the two pairs of through holes, and then fastened with a nut, so as to achieve connection between the first end of the second lower bracket 7 and the inner wall of the lower outer casing 3.

In addition, a through hole can be respectively arranged at the second end of the first upper bracket 4 and the second end of the first lower bracket 6, the first anti-rotation wheel 8 can be axially provided with a through hole, the through hole arranged at the second end of the first upper bracket 4, the through hole arranged at the first anti-rotation wheel 8 and the through hole arranged at the second end of the first lower bracket 6 can be aligned, and then a screw is connected with a nut after passing through the through hole arranged at the second end of the first upper bracket 4, the through hole arranged at the first anti-rotation wheel 8 and the through hole arranged at the second end of the first lower bracket 6, so that the movable connection between the second end of the first upper bracket 4 and the second end of the first lower bracket 6 and the first anti-rotation wheel 8 is realized. In addition, a through hole can be respectively arranged at the second end of the second upper bracket 5 and the second end of the second lower bracket 7, a through hole can be arranged in the axial direction of the second anti-rotation wheel 9, the through hole arranged at the second end of the second upper bracket 5, the through hole arranged at the second anti-rotation wheel 9 and the through hole arranged at the second end of the second lower bracket 7 can be aligned, and another screw is connected with a nut after passing through the through hole arranged at the second end of the second upper bracket 5, the through hole arranged at the second anti-rotation wheel 9 and the through hole arranged at the second end of the second lower bracket 7, so that the second end of the second upper bracket 5 and the second end of the second lower bracket 7 are movably connected with the second anti-rotation wheel 9.

In addition, the size of the first sliding groove 31 may be set according to actual needs, as long as it is ensured that the first turning prevention wheel 8 can pass through the first sliding groove 31 after moving in a direction away from the second turning prevention wheel 9. The size of the second sliding groove 32 may be set according to actual needs, as long as it is ensured that the second anti-rotation wheel 9 can pass through the second sliding groove 32 after moving away from the first anti-rotation wheel 8, which is not particularly limited in the embodiment of the present invention.

The first end 101 of the guide sleeve 10 and the first end 33 of the lower outer jacket 3 may be connected by welding, screwing, or the like. When the first end 101 of the guide sleeve 10 is connected with the first end 33 of the lower outer sleeve 3 by screw threads, the first end 33 of the lower outer sleeve 3 may be provided with a blind hole in the longitudinal direction, the blind hole may be provided with internal threads, the first end 101 of the guide sleeve 10 may be provided with external threads, and the first end 101 of the guide sleeve 10 and the first end 33 of the lower outer sleeve 3 may be connected by screw threads through the internal threads and the external threads. As shown in fig. 2 and 3, the spiral groove 102 is disposed on the side wall of the guide sleeve 10 and located between the first end 101 and the second end of the guide sleeve 10, the size of the spiral groove 102 may be set according to actual requirements, as long as it is ensured that the two ends of the pin 11 can be just located in the spiral groove 102 after the pin 11 passes through the fifth through hole, and the two ends of the pin 11 can slide along the spiral groove 102 and cannot slide out from the side wall of the guide sleeve 10.

Further, in order to prevent the lower outer sleeve 3 from being disengaged from the guide sleeve 10 when the guide sleeve 10 is driven to move, as shown in fig. 4, a through hole may be formed in a portion of the sidewall of the lower outer sleeve 3, the portion being close to the first end 33 of the lower outer sleeve 3, and a stable nail may be inserted through the through hole and then contacted with the sidewall of the guide sleeve 10.

Because the stable nail passes through the through hole and then contacts with the side wall of the guide sleeve 10, static friction exists between the stable nail and the side wall of the guide sleeve 10, and therefore, the lower outer sleeve 3 and the guide sleeve 10 can rotate relatively only when the static friction force between the stable nail and the side wall of the guide sleeve 10 is overcome. And only when the sliding friction force between the stable nail and the side wall of the guide sleeve 10 is overcome, the lower outer sleeve 3 can be separated from the guide sleeve 10. From this, the setting of steady nail can effectively avoid the relative rotation between overcoat 3 and the guide pin bushing 10 down, can effectively avoid taking place to drop off between overcoat 3 and the guide pin bushing 10 down then.

Furthermore, in order to avoid the stable nail from loosening and even falling off, an internal thread can be arranged on the through hole, and an external thread is arranged on the stable nail, so that the stable nail and the through hole can be in threaded connection, and the position of the stable nail is ensured to be fixed.

Finally, the first end 121 of the rotating body 12 penetrates into the guide sleeve 10 from the second end of the guide sleeve 10, and the size of the rotating body 12 can be set according to the size of the oil-water well to be descaled. The diameter of the first end 121 of the rotating body 12 may be slightly smaller than the inner diameter of the guide sleeve 10, as long as it is ensured that the first end 121 of the rotating body 12 can be just located in the guide sleeve 10 and can move and rotate in the guide sleeve 10. The aperture of the fifth through hole may be slightly larger than the diameter of the pin 11, as long as it is ensured that the pin 11 can just pass through the fifth through hole, which is not specifically limited in the embodiment of the present invention.

When the anti-rotation mechanism and the rotary descaling mechanism of the oil-water well mechanical pipe-through tool are installed, the first end of the first lower support 6 and the first end of the second lower support 7 are connected to the inner wall of the lower outer sleeve 3, and the first lower support 6 and the second lower support 7 connected to the inner wall of the lower outer sleeve 3 and the first sliding groove 31 and the second sliding groove 32 on the lower outer sleeve 3 are located on the same plane. The first end of the first upper support 4 and the first end of the second upper support 5 are then attached to the second end 22 of the core rod 2 and the second end 22 of the core rod 2 is positioned within the lower outer jacket 3. The core rod 2 is rotated to make the first upper support 4 and the second upper support 5 connected to the second end 22 of the core rod 2 and the first sliding groove 31 and the second sliding groove 32 on the lower outer sleeve 3 in the same plane. The first anti-rotation wheel 8 is then moveably connected to the second end of the first upper support 4 and the second end of the first lower support 6 and the second anti-rotation wheel 9 is moveably connected to the second end of the second upper support 5 and the second end of the second lower support 7. Then, the first end 101 of the guide sleeve 10 is connected to the first end 33 of the lower outer sleeve 3, the first end 121 of the rotator 12 is located in the guide sleeve 10, then the rotator 12 is rotated to align the fifth through hole on the rotator 12 with the spiral groove 102 on the guide sleeve 10, the pin 11 passes through the spiral groove 102 on the guide sleeve 10 and the fifth through hole on the rotator 12, and both ends of the pin 11 are located in the spiral groove 102 on the guide sleeve 10. Finally, the cleaning agent 13 is attached to the second end 122 of the rotating body 12. When the rapping mechanism of the oil-water well mechanical pipe-passing tool is installed, the second end of the second pin 38 can sequentially pass through the fourth sub-through hole and the third sub-through hole, the first spring 41 is sleeved on the portion, located between the first end of the second pin 38 and the fourth outer edge 381, in the side wall of the second pin 38, the second end of the third pin 39 sequentially passes through the sixth sub-through hole and the fifth sub-through hole, and the second spring 42 is sleeved on the portion, located between the first end of the third pin 39 and the fifth outer edge 391, in the side wall of the third pin 39. Then, the second mounting portion 29 is put into place in the upper casing 27, and the second mounting portion 29 is connected to the inner wall of the upper casing 27. Then, the first end of the first pin 30 is located in a first blind hole axially formed in the second end of the pull rod 26, the second end of the first pin 30 sequentially passes through a first sub-through hole and a second sub-through hole of the first through hole axially formed in the first mounting portion 28, the first mounting portion 28 is located in the first blind hole, and the first mounting portion 28 is connected to a side wall of the first blind hole. The second end of the pull rod 26 is then placed into the upper casing 27 from the first end of the upper casing 27. Rotation of the pull rod 26 aligns the first recess on the first pin 30 with the position of the second pin 38 and the second recess on the first pin 30 with the position of the third pin 39. Thereafter, the second end of the first pin 30 is positioned in the second through hole provided in the second mounting portion 29 in the axial direction, the second end of the second pin 38 is positioned in the second groove, and the second end of the third pin 39 is positioned in the second groove. Thereafter, the second outer rim 431 of the first cap 43 is caught on the first end of the upper casing 27, and the portion of the first cap 43 other than the second outer rim 431 is sandwiched between the inner wall of the upper casing 27 and the outer wall of the tension rod 26 and connected to the inner wall of the upper casing 27. Finally, the first end 261 of the pull rod 26 is connected with the rope cap 1, and the first end 21 of the core bar 2 is connected with the second end 271 of the upper outer sleeve 27. After the oil-water well mechanical pipe-penetrating tool is installed, the oil-water well mechanical pipe-penetrating tool can be put into an oil-water well to rotationally cut dirt on the well wall of the oil-water well.

In practical application, a blowout prevention pipe can be arranged right above a well head of the oil-water well, the height of the blowout prevention pipe is larger than that of the mechanical pipe penetrating tool of the oil-water well, and a pump truck hydraulic pipe can be connected to the side wall of the blowout prevention pipe. When the mechanical pipe-through tool for the oil-water well is required to be put into the oil-water well, the gate at the pipe opening of the lubricator can be opened firstly, the mechanical pipe-through tool for the oil-water well is put into the lubricator through the steel wire connected with the test vehicle, and then the gate at the pipe opening of the lubricator is closed. Then, the well head gate of the oil-water well is opened, and liquid is injected into the oil-water well through the pump truck hydraulic pipe, so that the mechanical pipe-through tool of the oil-water well can be lowered into the oil-water well under the coupling action of the hydraulic force (acting force generated by the liquid injected into the oil-water well through the pump truck hydraulic pipe) and the gravity of the mechanical pipe-through tool of the oil-water well. Generally, the liquid is continuously injected into the oil-water well through the pump truck hydraulic pipe in the process of putting the oil-water well mechanical pipe-through tool into the oil-water well, and the liquid injection into the oil-water well is stopped when the oil-water well mechanical pipe-through tool is lifted or the oil-water well mechanical pipe-through tool put into the oil-water well is pulled out of the oil-water well.

It should be noted that, when the mechanical pipe-through tool for oil-water well encounters a resistance (the descaling body 13 is stuck by dirt in the oil-water well) during the process of running into the oil-water well, the descaling body 13 and the rotating body 12 will stop moving, but the core rod 2, the lower outer sleeve 3 and the guide sleeve 10 will continue to move downwards under the action of gravity and inertia. Because the second end of the guide sleeve 10 is hindered by liquid in the oil-water well in the process of continuously moving downwards, and the second end 22 of the core rod 2 is located in the lower outer sleeve 3, the speed of the downward movement of the core rod 2 is greater than the speed of the downward movement of the guide sleeve 10 and the lower outer sleeve 3 connected with the guide sleeve 10, so that the core rod 2 moves towards the lower outer sleeve 3, the first upper support 4 and the first lower support 6 are close to each other, and the second upper support 5 and the second lower support 7 are close to each other, so that an included angle is formed between the second end of the first upper support 4 and the second end of the first lower support 6, the first anti-rotation wheel 8 is driven to move towards the direction far away from the second anti-rotation wheel 9, and an included angle is formed between the second end of the second upper support 5 and the second end of the second lower support 7, and the second anti-rotation wheel 9 is driven to move towards the direction far away from the first anti-rotation wheel 8. When the first anti-rotation wheel 8 and the second anti-rotation wheel 9 are far away from each other, the first anti-rotation wheel 8 passes through the first sliding groove 31 and continues to move in the direction far away from the second anti-rotation wheel 9, and the second anti-rotation wheel 9 passes through the second sliding groove 32 and continues to move in the direction far away from the first anti-rotation wheel 8. At the moment, the first anti-rotation wheel 8 is clamped in the first sliding groove 31, and the second anti-rotation wheel 9 is clamped in the second sliding groove 32, so that the core bar 2, the lower outer sleeve 3 and the guide sleeve 10 cannot rotate when continuously moving downwards, and the steel wire connected with the oil-water well mechanical pipe penetrating tool can be prevented from being wound on the rope cap 1 of the oil-water well mechanical pipe penetrating tool after being rotated. Because the spiral groove 102 is formed in the side wall of the guide sleeve 10, the fifth through hole is formed in the side wall of the rotator 12, which is close to the first end 121 of the rotator 12, and the pin 11 passes through the fifth through hole, then both ends of the pin 11 are located in the spiral groove 102, so that when the guide sleeve 10 continues to move downwards and the rotator 12 stops moving, the guide sleeve 10 cannot rotate, both ends of the pin 11 can slide upwards in the spiral groove 102, the pin 11 can rotate at the moment, the pin 11 can drive the rotator 12 to rotate, and then the rotator 12 can drive the scale remover 13 to rotate. The descaling body 13 can carry out rotary cutting to the dirt on the wall of a well of the oil-water well in the rotary process, even if the dirt is hard, the dirt can be removed through the rotary cutting of the descaling body 13, and therefore the pipe passing efficiency is improved.

In addition, when the descaling body 13 cannot completely remove dirt on the well wall of the oil-water well after one-time rotary cutting, the mechanical pipe-through tool of the oil-water well can be pulled upwards through a steel wire connected with the test vehicle, so that the core rod 2, the lower outer sleeve 3 and the guide sleeve 10 all move upwards. When the guide sleeve 10 moves upwards and the rotator 12 stops moving, because the guide sleeve 10 cannot rotate, two ends of the pin shaft 11 slide downwards in the spiral groove 102, the pin shaft 11 rotates again (rotates in the opposite direction), so that the pin shaft 11 drives the rotator 12 to rotate again (rotates in the opposite direction), and then the rotator 12 drives the descaling body 13 to rotate again (rotates in the opposite direction), so that the dirt on the well wall of the oil-water well is cut in a rotating manner. The process of pulling up and moving down can be repeated for a plurality of times, and under the effect of the multiple forward and backward direction rotating scraping of the descaling body 13, the dirt on the well wall of the oil-water well can be easily removed, thereby further improving the pipe passing efficiency. When the mechanical pipe-through tool for oil-water wells is pulled upwards by the steel wire connected with the test vehicle, the pull rod 26 is pulled upwards by the steel wire through the rope cap 1, and at the moment, the first mounting part 28 moves upwards under the driving of the pull rod 26. When the first mounting portion 28 moves upward until the third outer edge 301 provided on the first end of the first pin 30 is caught on the second sub through hole, the first mounting portion 28 is restricted by the third outer edge 301 to stop moving upward since the movement of the first pin 30 is restricted by the second pin 38 and the third pin 39. When the pull rod 26 is lifted by applying a force, the first mounting portion 28 is driven by the pull rod 26 to move upward rapidly, and at this time, the first pin 30 where the third outer edge 301 is located will bear an upward pulling force, so that the groove wall of the first groove provided on the side wall of the first pin 30 will press the second end of the second pin 38, so that the second pin 38 compresses the first spring 41 and moves in a direction away from the second through hole, and the groove wall of the second groove provided on the side wall of the first pin 30 will press the second end of the third pin 39, so that the third pin 39 compresses the second spring 42 and moves in a direction away from the second through hole. When the second end of the second pin 38 is no longer located in the first recess and the second end of the third pin 39 is no longer located in the second recess, the movement of the first pin 30 is no longer limited by the second pin 38 and the third pin 39, the movement of the first mounting portion 28 is no longer limited by the third outer edge 301 on the first pin 30, and the movement of the pull rod 26 is no longer limited by the first mounting portion 28, i.e., the pull rod 26 is unlocked. The pull rod 26 will then accelerate upwards. When the first outer edge 262 provided on the second end of the pull rod 26 moves to the second end of the first pressure cap 43 and continues to move upward, it collides with the second end of the first pressure cap 43 and generates a large instantaneous impact force. Under the action of the instant impact force, the upper outer sleeve 27 is rapidly moved upward, and thus the core rod 2 connected to the upper outer sleeve 27 is rapidly moved upward. When the core bar 2 moves upwards rapidly, the core bar 2 is connected with the lower outer sleeve 3 through the first upper support 4, the first lower support 6, the second upper support 5 and the second lower support 7, so that the lower outer sleeve 3 also moves upwards rapidly, and then the guide sleeve 10 connected with the lower outer sleeve 3 is driven to move upwards rapidly. And because the pin 11 passes through the fifth through hole arranged on the rotator 12, and both ends of the pin 11 are located in the spiral grooves 102 arranged on the guide sleeve 10, when the guide sleeve 10 moves upwards rapidly, both the rotator 12 and the descaling body 13 connected with the rotator 12 move upwards rapidly, and at this time, the descaling body 13 can remove the dirt blocking the mechanical pipe-passing tool of the oil-water well more thoroughly, thereby effectively unblocking the mechanical pipe-passing tool of the oil-water well and further improving the pipe-passing efficiency.

Optionally, as shown in fig. 4, the rotary descaling mechanism may further include: the sheath 14 and the guide sleeve 10 are provided with a sixth outer edge 103 at the second end. The sheath 14 is sleeved on the guide sleeve 10, and the sheath 14 is in contact with the sixth outer edge 103.

It should be noted that the structure of the sheath 14 may be a cylindrical structure, and may be hollow, the outer diameter of the sheath 14 may be smaller than the outer diameter of the sixth outer edge 103, and after the sheath 14 contacts the sixth outer edge 103, the sheath 14 may be prevented from slipping off the guide sleeve 10. The inner diameter of the sheath 14 may be slightly larger than the diameter of the guide sleeve 10, as long as it is ensured that the sheath 14 can be exactly sleeved on the guide sleeve 10, and the embodiment of the present invention is not particularly limited thereto.

It should be noted that, when the pin 11 passes through the fifth through hole and both ends of the pin 11 are located in the spiral groove 102, the sheath 14 can be sleeved on the guide sleeve 10, so that a closed space can be formed in the guide sleeve 10, and therefore, impurities in the oil-water well or dirt scraped by the oil-water well mechanical pipe penetrating tool can be prevented from entering the oil-water well mechanical pipe penetrating tool through the spiral groove 102 to affect the normal use of the oil-water well mechanical pipe penetrating tool.

Optionally, as shown in fig. 4, the rotary descaling mechanism may further include: and a second blind hole is formed in the second end of the guide sleeve 10 of the third spring 15 in the longitudinal direction. The third spring 15 and the first end 121 of the rotating body 12 are both located in the second blind hole, and the third spring 15 is disposed between the first end 121 of the rotating body 12 and the bottom of the second blind hole.

It should be noted that, in order to fix the position of the third spring 15, the first end 121 of the rotating body 12 and the bottom of the second blind hole may be provided with two blind holes at opposite positions in the longitudinal direction, and the two ends of the third spring 15 may be located in the two blind holes one by one.

In addition, in order to facilitate the installation of the third spring 15, the side wall of the guide sleeve 10 may be provided with a through hole in the transverse direction, the through hole having a size larger than the outer diameter of the third spring 15, and the through hole is communicated with the second blind hole. Thus, the third spring 15 can be inserted from this through hole between the first end 121 of the rotary body 12 and the bottom of the second blind hole. In addition, when the interior of the guide sleeve 10 needs to be cleaned, a cleaning tool can be extended into the guide sleeve 10 through the through hole so as to clean impurities in the guide sleeve 10.

It should be noted that, the third spring 15 is disposed between the first end 121 of the first rotating body 12 and the bottom of the second blind hole, and the downward moving speed of the guide sleeve 10 can be properly reduced under the elastic force of the third spring 15, so as to properly reduce the rotating speed of the scale remover 13, and further avoid the damage to the scale remover 13 and the well wall of the oil-water well caused by the over-fast rotation of the scale remover 13. In addition, when the descaling body 13 cannot completely remove dirt on the well wall of the oil-water well after once rotary cutting, the mechanical pipe-passing tool of the oil-water well needs to be pulled upwards through a steel wire connected with a test vehicle, so that the core rod 2, the lower outer sleeve 3 and the guide sleeve 10 all move upwards, and at the moment, the guide sleeve 10, the lower outer sleeve 3 and the core rod 2 can be quickly reset under the elastic action of the third spring 15.

Optionally, as shown in fig. 4, the mechanical pipe-passing tool for oil-water wells may further include a hydraulic thrust mechanism, the hydraulic thrust mechanism including: a glue cartridge core 16 and a glue cartridge 17. The rubber cylinder 17 is sleeved on the rubber cylinder core 16, the first end 161 of the rubber cylinder core 16 is connected with the second end 122 of the rotating body 12, and the second end 162 of the rubber cylinder core 16 is connected with the descaling body 13.

It should be noted that the structure of the rubber cylinder core 16 may be a cylindrical structure. The connection between the first end 161 of the cartridge core 16 and the second end 122 of the rotary body 12 may be by welding, screwing, or the like. The connection between the second end 162 of the rubber cylinder core 16 and the descaling body 13 can also be welding, screwing and the like.

In addition, the rubber tube 17 may be made of a rubber material. The number of the rubber cylinders 17 may be one or more. The structure of the rubber cylinder 17 may be a cylindrical structure, and may be hollow. The inner diameter of the rubber cylinder 17 can be slightly larger than the diameter of the rubber cylinder core 16, the outer diameter of the rubber cylinder 17 can be set according to the size of the oil-water well, as long as the rubber cylinder 17 can be just sleeved on the rubber cylinder core 16, and when the oil-water well mechanical pipe-through tool is positioned in the oil-water well, the outer wall of the rubber cylinder 17 can just contact with the well wall of the oil-water well.

Further, in order to effectively prevent the rotating body 12 from driving the rubber cylinder core 16 to rotate, and the rotating body 12 and the rubber cylinder core 16 are disengaged from each other, as shown in fig. 4, a through hole may be disposed on a portion of the side wall of the rotating body 12, which is close to the second end 122 of the rotating body 12, and a stable nail may be contacted with the outer wall of the rubber cylinder core 16 after passing through the through hole.

Because the nail passes through the through hole and then contacts with the outer wall of the rubber barrel core 16, static friction exists between the nail and the outer wall of the rubber barrel core 16, and therefore, only when the static friction force between the nail and the outer wall of the rubber barrel core 16 is overcome, the rotating body 12 and the rubber barrel core 16 can rotate relatively. And, only when the sliding friction force between the stable nail and the outer wall of the rubber cylinder core 16 is overcome, the rotating body 12 can be disengaged from the rubber cylinder core 16. Therefore, the arrangement of the stable nail can effectively avoid the relative rotation between the rotating body 12 and the rubber cylinder core 16, and then the tripping between the rotating body 12 and the rubber cylinder core 16 can be effectively avoided.

It is worth to be noted that, in the process of putting the oil-water well into the mechanical pipe-through tool for the oil-water well, as the rubber cylinder 17 is sleeved on the rubber cylinder core 16, the outer wall of the rubber cylinder 17 can be contacted with the well wall of the oil-water well, so that most of the liquid injected into the oil-water well is gathered above the rubber cylinder 17. When the pressure above the rubber cylinder 17 is greater than the pressure below the rubber cylinder 17, the mechanical pipe-through tool for the oil-water well can smoothly move downwards, so that the arrangement of the rubber cylinder 17 can facilitate the downward movement of the mechanical pipe-through tool for the oil-water well. In addition, because the outer wall of the rubber cylinder 17 can contact with the well wall of the oil-water well, when the rubber cylinder core 16 is driven by the rotating body 12 to rotate, the rubber cylinder 17 can also rotate under the drive of the rubber cylinder core 16, soft dirt on the well wall of the oil-water well can be removed after the rubber cylinder 17 rotates, or dirt and debris which are scraped by the descaling body 13 but still stick to the well wall of the oil-water well can be cleaned for the second time, and therefore the pipe passing effect is improved.

It should be noted that, since the rubber tube 17 is sleeved on the rubber tube core 16, and the first end 161 of the rubber tube core 16 is connected to the second end 122 of the rotating body 12, the rotating body 12 will drive the rubber tube core 16 to rotate when rotating, and then drive the rubber tube 17 to rotate. And because the outer wall of the rubber cylinder 17 contacts with the well wall of the oil-water well, a certain friction force is generated between the rubber cylinder 17 and the well wall of the oil-water well during rotation, so that the rotation of the rubber cylinder 17 lags behind the rotation of the rubber cylinder core 16, and the friction force is also generated between the inner wall of the rubber cylinder 17 and the outer wall of the rubber cylinder core 16. In order to reduce the friction between the inner wall of the rubber tube 17 and the outer wall of the rubber tube core 16, as shown in fig. 4, a steel skeleton 171 may be provided on the inner wall of the rubber tube 17.

It should be noted that the structure of the steel skeleton 171 may be a cylindrical structure, and may be hollow. The external diameter of steel skeleton 171 can be equal to the internal diameter of packing element 17, the height of steel skeleton 171 can be less than the height of packing element 17, like this, after packing element 17 just overlaps and establishes on steel skeleton 171, the inner wall of steel skeleton 171 can be completely with the outer wall contact of packing element core 16, and other inner walls except the partial inner wall that contacts with steel skeleton 171 in the inner wall of packing element 17 can contact with the outer wall of packing element core 16, thereby when guaranteeing that packing element core 16 can drive packing element 17 and rotate, reduced the frictional force between the inner wall of packing element 17 and the outer wall of packing element core 16. In addition, the steel skeleton 171 reduces the deformation of the rubber cylinder 17 in the transverse direction, so that the rubber cylinder 17 can be ensured to have good liquid gathering effect, and the capability of the rubber cylinder 17 in removing soft dirt on the well wall of the oil-water well can be ensured.

Alternatively, when the number of the rubber cylinders 17 is plural, that is, when the number of the rubber cylinders 17 is greater than or equal to 2, as shown in fig. 4, the oil-water well mechanical pipe passing tool may further include: a spacer 18. The rubber cylinder core 16 is sleeved with the spacer 18, and the spacer 18 is arranged between every two adjacent rubber cylinders 17 in at least two rubber cylinders 17.

It should be noted that the structure of the spacer 18 may be a cylindrical structure, and may be hollow. The inner diameter of the spacer 18 may be slightly larger than the diameter of the rubber sleeve core 16, as long as it is ensured that the spacer 18 can be just sleeved on the rubber sleeve core 16 and cannot move relative to the rubber sleeve core 16, which is not specifically limited in the embodiment of the present invention.

It should be noted that, since the spacer 18 is disposed between every two adjacent rubber cylinders 17 in at least two rubber cylinders 17, and the spacer 18 does not move relative to the rubber cylinder core 16, the sleeving position of the rubber cylinders 17 on the rubber cylinder core 16 does not change.

Alternatively, as shown in fig. 5, a portion of the rotating body 12 near the second end 122 of the rotating body 12 is provided with a sixth through hole 123 in the lateral direction and a third blind hole 124 in the longitudinal direction; the cartridge core 16 is provided with a seventh through hole 163 in the longitudinal direction; the hydraulic thrust mechanism may further include: the connecting body 19, the ball seat 20, the valve ball 23, the fourth spring 24 and the second pressing cap 25. The sixth through hole 123 is communicated with the third blind hole 124, the third blind hole 124 is communicated with the seventh through hole 163, and the ball seat 20 is connected with the part of the seventh through hole 163, which is close to the second end 162 of the rubber cylinder core 16; the first end 191 of the connecting body 19 is connected with the second end 162 of the rubber barrel core 16, and the second end 192 of the connecting body 19 is connected with the descaling body 13; the connecting body 19 is provided with a fourth blind hole in the longitudinal direction, the fourth blind hole is communicated with the seventh through hole 163, the fourth spring 24 is positioned in the fourth blind hole, the first end 241 of the fourth spring 24 is contacted with the bottom of the fourth blind hole, the part of the second pressing cap 25 except the outer edge of the second pressing cap 25 is positioned in the fourth spring 24, the outer edge of the second pressing cap 25 is contacted with the second end 242 of the fourth spring 24, and the valve ball 23 is positioned between the ball seat 20 and the second pressing cap 25; two water outlet grooves 193 which are opposite in position are arranged on the side wall of the connecting body 19, and the two water outlet grooves 193 are communicated with the fourth blind hole.

The number of the sixth through holes 123 may be one or more. When the number of the sixth through holes 123 is plural, the plural sixth through holes 123 are communicated with each other and are communicated with the third blind hole 124. The hole diameters of the sixth through hole 123, the third blind hole 124, and the seventh through hole 163 may be any hole diameters as long as it is ensured that the liquid can flow into the cartridge core 16 through the sixth through hole 123, the third blind hole 124, and the seventh through hole 163.

In addition, the connection between the first end 191 of the connection body 19 and the second end 162 of the rubber barrel core 16 can be welding, screwing, etc. When the first end 191 of the connecting body 19 is connected with the second end 162 of the rubber barrel core 16 by a screw thread, an internal thread may be provided on the fourth blind hole, and an external thread may be provided on the second end 162 of the rubber barrel core 16, through which the first end 191 of the connecting body 19 and the second end 162 of the rubber barrel core 16 may be connected by a screw thread. The connection between the second end 192 of the connecting body 19 and the scale removing body 13 can be a welding, a threaded connection, etc.

Further, in order to effectively avoid the rubber tube core 16 from driving the connecting body 19 to rotate, the rubber tube core 16 and the connecting body 19 are tripped, and in order to effectively avoid the connecting body 19 from driving the descaling body 13 to rotate, the connecting body 19 and the descaling body 13 are tripped, as shown in fig. 5, through holes can be respectively arranged on the side wall of the connecting body 19 at positions close to the first end 191 and the second end 192 of the connecting body 19, a stable nail can be contacted with the outer wall of the rubber tube core 16 after passing through one of the two through holes, and another stable nail is contacted with the side wall of the descaling body 13 after passing through the other of the two through holes.

Because a steady nail passes through one of the two through holes and then contacts with the outer wall of the rubber cylinder core 16, and another steady nail passes through the other through hole of the two through holes and then contacts with the side wall of the descaling body 13, static friction exists between the steady nail and the outer wall of the rubber cylinder core 16, and static friction exists between the other steady nail and the side wall of the descaling body 13, therefore, only when static friction between one steady nail and the outer wall of the rubber cylinder core 16 is overcome, the connecting body 19 and the rubber cylinder core 16 can rotate relatively, and only when sliding friction between one steady nail and the outer wall of the rubber cylinder core 16 is overcome, the connecting body 19 and the rubber cylinder core 16 can be tripped. Therefore, the arrangement of the stable nail can effectively avoid the relative rotation between the connecting body 19 and the rubber cylinder core 16, and then the tripping between the connecting body 19 and the rubber cylinder core 16 can be effectively avoided. And only when the static friction force between the other stable nail and the side wall of the descaling body 13 is overcome, the connecting body 19 and the descaling body 13 can rotate relatively, and only when the sliding friction force between the other stable nail and the side wall of the descaling body 13 is overcome, the connecting body 19 and the descaling body 13 can be disengaged. Therefore, the arrangement of the stable nail can effectively avoid the relative rotation between the connecting body 19 and the descaling body 13, and then the tripping between the connecting body 19 and the descaling body 13 can be effectively avoided.

Furthermore, in order to avoid the stable nails from loosening and even falling off, internal threads can be arranged on the two through holes, and external threads are arranged on the two stable nails, so that the two stable nails can be in threaded connection with the two through holes one by one, and the fixation of the positions of the two stable nails is ensured.

In addition, the ball seat 20 may have a cylindrical structure and may be hollow. The outer diameter of the ball seat 20 may be slightly smaller than the diameter of the seventh through hole 163, and the connection between the ball seat 20 and the portion of the seventh through hole 163 near the second end 162 of the rubber cylinder core 16 may be welding, screwing, or the like.

In addition, the outer diameter of the outer edge of the second pressing cap 25 may be slightly smaller than the aperture of the fourth blind hole and larger than the inner diameter of the fourth spring 24, the outer diameter of the portion of the second pressing cap 25 except the outer edge of the second pressing cap 25 may be smaller than the inner diameter of the fourth spring 24, and the outer diameter of the fourth spring 24 may be slightly smaller than the aperture of the fourth blind hole, as long as it is ensured that the fourth spring 24 can be exactly sleeved on the portion of the second pressing cap 25 except the outer edge of the second pressing cap 25 and the outer edge of the second pressing cap 25 can be exactly contacted with the second end 242 of the fourth spring 24, which is not specifically limited in the embodiment of the present invention.

Further, the diameter of the valve ball 23 may be slightly larger than the inner diameter of the ball seat 20 and the inner diameter of the second pressing cap 25 as long as it is ensured that the valve ball 23 can be always located between the ball seat 20 and the second pressing cap 25.

Finally, the two water outlet grooves 193 can be set according to actual requirements as long as the two water outlet grooves 193 are communicated with the fourth blind hole, and the two water outlet grooves 193 can be smaller than the outer diameter of the fourth spring 24 and the diameter of the valve ball 23, so as to prevent the fourth spring 24 and the valve ball 23 from falling out of the two water outlet grooves 193.

It should be noted that, during the process of putting the mechanical pipe-through tool for oil-water well into the oil-water well, liquid is continuously injected into the oil-water well, most of the liquid injected into the oil-water well is collected above the rubber tube 17, and a small part of the liquid flows into the rubber tube core 16 through the sixth through hole 123, the third blind hole 124 and the seventh through hole 163. The liquid flowing into the cartridge core 16 passes through the through hole of the ball seat 20 to contact the valve ball 23 and is collected in the space above the valve ball 23 in the through hole. When the liquid accumulated in the space above the valve ball 23 is accumulated to a certain degree, the valve ball 23 is pressed downward, and then the valve ball 23 compresses the fourth spring 24. When the fourth spring 24 is compressed, the liquid collected in the space above the valve ball 23 will flow out from the two water outlet grooves 193 connected with the fourth blind hole to the mechanical pipe tool of the oil-water well, and the part of the liquid flowing out from the two water outlet grooves 193 will flush the scale removing body 13 and the scale scraps scraped by the scale removing body 13 and still stuck on the wall of the oil-water well.

Alternatively, for convenience of processing, as shown in FIG. 5, the scale removing body 13 may include a scale removing sheet 131 and a fixing shaft 132. The fixed shaft 132 is coupled to the second end 192 of the coupling body 19, and the descaling blades 131 are coupled to the sidewall of the fixed shaft 132.

It should be noted that the structure of the fixing shaft 132 may be a cylindrical structure, and certainly, in order to facilitate the oil-water well mechanical pipe penetrating tool to be smoothly inserted into a heavily-scaled part of the oil-water well, the first end of the fixing shaft 132 may be a tapered shape. The fixed shaft 132 and the second end 192 of the connecting body 19 may be connected by welding, screwing, or the like. When the fixing shaft 132 is connected to the second end 192 of the connecting body 19 by a screw, the second end 192 of the connecting body 19 may be provided with a blind hole in the longitudinal direction, the blind hole may be provided with an internal thread, the second end of the fixing shaft 132 may be provided with an external thread, and the fixing shaft 132 and the second end 192 of the connecting body 19 may be connected by the internal thread and the external thread.

In addition, the descaling pieces 131 may be several separate descaling pieces 131 that are not connected to each other, or may be a structure obtained by forming several grooves on the sidewall of a hollow cylindrical structure.

Optionally, as shown in fig. 5, the tapping mechanism further comprises: and a fifth spring 34. The fifth spring 34 is sleeved on the core rod 2, a first end of the fifth spring 34 is in contact with the second end 271 of the upper outer sleeve 27, and a second end of the fifth spring 34 is in contact with the second end 40 of the lower outer sleeve 3.

It should be noted that the inner diameter of the fifth spring 34 may be slightly larger than the diameter of the core rod 2, and parameters such as the expansion length of the fifth spring 34 may be set according to actual requirements, as long as it is ensured that the fifth spring 34 can be exactly sleeved on the core rod 2, and two ends of the fifth spring 34 can exactly contact with the second end 293 of the upper outer sleeve 27 and the second end 40 of the lower outer sleeve 3, respectively, which is not specifically limited in this embodiment of the present invention.

It should be noted that, the fifth spring 34 is disposed between the second end 293 of the upper outer sleeve 27 and the second end 40 of the lower outer sleeve 3, and the downward moving speed of the upper outer sleeve 27, and thus the downward moving speed of the core rod 2 in the lower outer sleeve 3, can be properly reduced by the elastic force of the fifth spring 34. Therefore, the speed of the first upper bracket 4 and the first lower bracket 6 approaching each other can be properly reduced, the speed of the second upper bracket 5 and the second lower bracket 7 approaching each other can be properly reduced, then the speed of the second end of the first upper bracket 4 and the second end of the first lower bracket 6 driving the first anti-rotation wheel 8 to move in the direction away from the second anti-rotation wheel 9 can be properly reduced, and the speed of the second end of the second upper bracket 5 and the second end of the second lower bracket 7 driving the second anti-rotation wheel 9 to move in the direction away from the first anti-rotation wheel 8 can be properly reduced. Therefore, the first anti-rotation wheel 8 and the second anti-rotation wheel 9 can be prevented from being rapidly contacted with the well wall of the oil-water well to damage the first anti-rotation wheel 8, the second anti-rotation wheel 9 and the well wall of the oil-water well.

Alternatively, as shown in fig. 4 and 5, the tapping mechanism may further include: and a sixth spring 44. The sixth spring 44 is sleeved on the first pin 30, and the sixth spring 44 is located between the second sub-through hole and the third outer edge 301.

It should be noted that the inner diameter of the spring ring in the sixth spring 44 may be slightly larger than the diameter of the first pin 30, and the outer diameter of the spring ring in the sixth spring 44 may be slightly smaller than the outer diameter of the third outer edge 301 and the aperture of the second sub through hole, as long as it is ensured that the sixth spring 44 can be just sleeved on the first pin 30, and the sixth spring 44 can be always located between the second sub through hole and the third outer edge 301, which is not specifically limited in this embodiment of the present invention.

It should be noted that the sixth spring 44 is sleeved on the first pin 30 and located between the second sub-through hole and the third outer edge 301, so when the pull rod 26 drives the first mounting portion 28 to move upward, since the movement of the first pin 30 is limited by the second pin 38 and the third pin 39, the position of the third outer edge 301 on the first pin 30 is not changed, and at this time, the first mounting portion 28 compresses the sixth spring 44 due to the upward movement of the second sub-through hole in the first through hole arranged in the axial direction. At this time, only when the force of the pull-up rod 26 overcomes the elastic force of the sixth spring 44, the resistance of the second pin 38 against the groove wall of the first groove on the first pin 30, and the resistance of the third pin 39 against the groove wall of the second groove on the first pin 30, the groove wall of the first groove presses the second end of the second pin 38, so that the second pin 38 moves in the direction away from the second through hole, and the groove wall of the second groove presses the second end of the third pin 39, so that the third pin 39 moves in the direction away from the second through hole, thereby instantly releasing the first pin 30 and the pull rod 26. Therefore, the arrangement of the sixth spring 44 can increase the force required for instantly releasing the draw bar 26, so as to increase the instant impact force generated after the first outer edge 262 arranged on the second end of the draw bar 26 after being released from the clamp collides with the second end of the first pressing cap 43, and further improve the releasing efficiency of the mechanical pipe-passing tool for the oil-water well.

Optionally, in order to avoid the second mounting portion 29 and the upper outer casing 27 from being disengaged, an eighth through hole may be disposed on a portion of the sidewall of the upper outer casing 27 close to the second end 271 of the upper outer casing 27, and a fifth blind hole may be disposed on an outer wall of the second mounting portion 29, as shown in fig. 5, the tapping mechanism may further include: and a stable nail 45. One end of the steady nail 45 passes through the eighth through hole and then is positioned in the fifth blind hole.

It should be noted that both the aperture of the eighth through hole and the aperture of the fifth blind hole may be slightly larger than the diameter of the stable nail 45, as long as it is ensured that one end of the stable nail 45 may be exactly located in the fifth blind hole after passing through the eighth through hole, and this is not specifically limited in the embodiment of the present invention.

In addition, in order to further avoid the second mounting portion 29 and the upper outer sleeve 27 from being disengaged, the number of the eighth through holes may be multiple, and correspondingly, the number of the fifth blind holes and the number of the stable nails 45 may also be multiple. One end of each of the plurality of stabilizing nails 45 may pass through a corresponding one of the plurality of eighth through holes and then be located in a corresponding one of the plurality of fifth blind holes.

Optionally, in order to avoid the occurrence of a trip between the core rod 2 and the upper outer sleeve 27 when the upper outer sleeve 27 drives the core rod 2 to move, a through hole may be disposed on a portion of the sidewall of the upper outer sleeve 27, which is close to the second end 271 of the upper outer sleeve 27, a blind hole may be disposed on a portion of the sidewall of the core rod 2, which is close to the first end 21 of the core rod 2, and after the first end 21 of the core rod 2 is located in the upper outer sleeve 27 and connected to the second end 271 of the upper outer sleeve 27, one end of a stable nail may pass through the through hole and then be located in the blind hole, so as to effectively avoid the occurrence of a trip between the core rod 2 and the upper outer sleeve 27.

Optionally, for convenience of processing and installation, the rapping mechanism may further comprise: upper joints (not shown in the figures). The first end of the upper joint is connected with the rope cap 1, and the second end of the upper joint is connected with the first end 261 of the pull rod 26.

It should be noted that the first end of the upper joint and the second end of the upper joint may be provided with external threads, the first end 261 of the pull rod 26 and the rope cap 1 may be provided with internal threads, the first end of the upper joint and the rope cap 1 may be in threaded connection, and the second end of the upper joint and the first end 261 of the pull rod 26 may also be in threaded connection.

Optionally, the device may also include a weighted rod (not shown). A first end of the weight bar may be connected to the cord cap 1 and a second end of the weight bar may be connected to the first end 261 of the pull rod 26. Of course, the second end of the weight bar may also be connected to the first end of the upper joint.

It should be noted that, in order to enable the first outer edge 262 disposed on the second end of the pull rod 26 to collide with the second end of the first pressing cap 43 and generate a large instantaneous impact force when moving to the second end of the first pressing cap 43 and continuing to move upward, a weight bar may be disposed between the rope cap 1 and the first end 261 of the pull rod 26, or a weight bar may be disposed between the rope cap 1 and the first end of the upper joint. When the weight bar is arranged between the rope cap 1 and the first end 261 of the pull rod 26 or between the rope cap 1 and the first end of the upper joint, only when the force of the upper pull rod 26 overcomes the gravity of the weight bar, the resistance of the second pin 38 to the groove wall of the first groove on the first pin 30 and the resistance of the third pin 39 to the groove wall of the second groove on the first pin 30, the groove wall of the first groove can extrude the second pin 38, so that the second pin 38 moves in the direction away from the second through hole, and the groove wall of the second groove can extrude the third pin 39, so that the third pin 39 moves in the direction away from the second through hole, and the first pin 30 and the pull rod 26 can be unlocked instantly. Therefore, the arrangement of the weighting rod can increase the force required for instantly releasing the pull rod 26, so that the instant impact force generated after the collision between the first outer edge 262 arranged on the second end of the released pull rod 26 and the second end of the first pressing cap 43 can be increased, and the releasing efficiency of the mechanical pipe-passing tool for the oil-water well is higher.

Wherein, the weighting bar can be made of steel. The size of the weighting bar can be set according to actual needs. When the weight bar is disposed between the cap 1 and the first end 261 of the pull rod 26, the first end of the weight bar and the cap 1 may be threaded, etc., and the second end of the weight bar and the first end 261 of the pull rod 26 may be threaded, welded, etc. When the weight bar sets up between the first end of cap by rope 1 and top connection, the first end of weight bar can carry out threaded connection etc. with cap by rope 1, and threaded connection, welding etc. can be carried out with the first end of top connection to the second end of weight bar.

In the embodiment of the invention, when the mechanical pipe-through tool for the oil-water well encounters resistance (the descaling body 13 is stuck by dirt in the oil-water well) in the process of running into the oil-water well, the descaling body 13 and the rotating body 12 stop moving, but the core rod 2, the lower outer sleeve 3 and the guide sleeve 10 still continue to move downwards under the action of gravity and inertia. Because the second end of the guide sleeve 10 is hindered by liquid in the oil-water well in the process of continuously moving downwards, and the second end of the core rod 2 is located in the lower outer sleeve 3, the speed of the downward movement of the core rod 2 is greater than the speed of the downward movement of the guide sleeve 10 and the lower outer sleeve 3 connected with the guide sleeve 10, so that the core rod 2 moves towards the lower outer sleeve 3, the first upper support 4 and the first lower support 6 are close to each other, and the second upper support 5 and the second lower support are close to each other, so that an included angle is formed between the second end of the first upper support 4 and the second end of the first lower support 6, the first anti-rotation wheel 8 is driven to move towards the direction far away from the second anti-rotation wheel 9, and an included angle is formed between the second end of the second upper support 5 and the second end of the second lower support 7, and the second anti-rotation wheel 9 is driven to move towards the direction far away from the first anti-rotation wheel 8. When the first anti-rotation wheel 8 and the second anti-rotation wheel 9 are far away from each other, the first anti-rotation wheel 8 passes through the first sliding groove 31 and continues to move in the direction far away from the second anti-rotation wheel 9, and the second anti-rotation wheel 9 passes through the second sliding groove 32 and continues to move in the direction far away from the first anti-rotation wheel 8. At the moment, the first anti-rotation wheel 8 is clamped in the first sliding groove 31, and the second anti-rotation wheel 9 is clamped in the second sliding groove 32, so that the core bar 2, the lower outer sleeve 3 and the guide sleeve 10 cannot rotate when continuously moving downwards, and the steel wire connected with the oil-water well mechanical pipe penetrating tool can be prevented from being wound on the rope cap 1 of the oil-water well mechanical pipe penetrating tool after being rotated. Because the spiral groove 102 is formed in the side wall of the guide sleeve 10, the fifth through hole is formed in the side wall of the rotator 12, which is close to the first end 121 of the rotator 12, and the pin 11 passes through the fifth through hole, then both ends of the pin 11 are located in the spiral groove 102, so that when the guide sleeve 10 continues to move downwards and the rotator 12 stops moving, the guide sleeve 10 cannot rotate, both ends of the pin 11 can slide upwards in the spiral groove 102, the pin 11 can rotate at the moment, the pin 11 can drive the rotator 12 to rotate, and then the rotator 12 can drive the scale remover 13 to rotate. The descaling body 13 can carry out rotary cutting to the dirt on the wall of a well of the oil-water well in the rotary process, even if the dirt is hard, the dirt can be removed through the rotary cutting of the descaling body 13, and therefore the pipe passing efficiency is improved. In addition, when the descaling body 13 cannot completely remove dirt on the well wall of the oil-water well after one-time rotary cutting, the mechanical pipe-through tool of the oil-water well can be pulled upwards through a steel wire connected with the test vehicle, so that the core rod 2, the lower outer sleeve 3 and the guide sleeve 10 all move upwards. When the guide sleeve 10 moves upwards and the rotator 12 stops moving, because the guide sleeve 10 cannot rotate, two ends of the pin shaft 11 slide downwards in the spiral groove 102, the pin shaft 11 rotates again (rotates in the opposite direction), so that the pin shaft 11 drives the rotator 12 to rotate again (rotates in the opposite direction), and then the rotator 12 drives the descaling body 13 to rotate again (rotates in the opposite direction), so that the dirt on the well wall of the oil-water well is cut in a rotating manner. The process of pulling up and moving down can be repeated for a plurality of times, and under the effect of the multiple forward and backward direction rotating scraping of the descaling body 13, the dirt on the well wall of the oil-water well can be easily removed, thereby further improving the pipe passing efficiency. When the mechanical pipe-through tool for oil-water wells is pulled upwards by the steel wire connected with the test vehicle, the pull rod 26 is pulled upwards by the steel wire through the rope cap 1, and at the moment, the first mounting part 28 moves upwards under the driving of the pull rod 26. When the first mounting portion 28 moves upward until the third outer edge 301 provided on the first end of the first pin 30 is caught on the second sub through hole, the first mounting portion 28 is restricted by the third outer edge 301 to stop moving upward since the movement of the first pin 30 is restricted by the second pin 38 and the third pin 39. When the pull rod 26 is lifted by applying a force, the first mounting portion 28 is driven by the pull rod 26 to move upward rapidly, and at this time, the first pin 30 where the third outer edge 301 is located will bear an upward pulling force, so that the groove wall of the first groove provided on the side wall of the first pin 30 will press the second end of the second pin 38, so that the second pin 38 compresses the first spring 41 and moves in a direction away from the second through hole, and the groove wall of the second groove provided on the side wall of the first pin 30 will press the second end of the third pin 39, so that the third pin 39 compresses the second spring 42 and moves in a direction away from the second through hole. When the second end of the second pin 38 is no longer located in the first recess and the second end of the third pin 39 is no longer located in the second recess, the movement of the first pin 30 is no longer limited by the second pin 38 and the third pin 39, the movement of the first mounting portion 28 is no longer limited by the third outer edge 301 on the first pin 30, and the movement of the pull rod 26 is no longer limited by the first mounting portion 28, i.e., the pull rod 26 is unlocked. The pull rod 26 will then accelerate upwards. When the first outer edge 262 provided on the second end of the pull rod 26 moves to the second end of the first pressure cap 43 and continues to move upward, it collides with the second end of the first pressure cap 43 and generates a large instantaneous impact force. Under the action of the instant impact force, the upper outer sleeve 27 is rapidly moved upward, and thus the core rod 2 connected to the upper outer sleeve 27 is rapidly moved upward. When the core bar 2 moves upwards rapidly, the core bar 2 is connected with the lower outer sleeve 3 through the first upper support 4, the first lower support 6, the second upper support 5 and the second lower support 7, so that the lower outer sleeve 3 also moves upwards rapidly, and then the guide sleeve 10 connected with the lower outer sleeve 3 is driven to move upwards rapidly. And because the pin 11 passes through the fifth through hole arranged on the rotator 12, and both ends of the pin 11 are located in the spiral grooves 102 arranged on the guide sleeve 10, when the guide sleeve 10 moves upwards rapidly, both the rotator 12 and the descaling body 13 connected with the rotator 12 move upwards rapidly, and at this time, the descaling body 13 can remove the dirt blocking the mechanical pipe-passing tool of the oil-water well more thoroughly, thereby effectively unblocking the mechanical pipe-passing tool of the oil-water well and further improving the pipe-passing efficiency.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an oil-water well machinery siphunculus instrument which characterized in that, oil-water well machinery siphunculus instrument includes: rope cap (1), prevent changeing mechanism, rotatory descaling mechanism and the mechanism of shocking, prevent changeing the mechanism and include core bar (2), lower overcoat (3), first upper bracket (4), second upper bracket (5), first lower carriage (6), second lower carriage (7), first runner (8) and second runner (9) are prevented to the rotation, rotatory descaling mechanism includes guide pin bushing (10), round pin axle (11), rotator (12) and descaling body (13), the mechanism of shocking includes: the device comprises a pull rod (26), an upper outer sleeve (27), a first mounting part (28), a second mounting part (29), a first pin (30), a second pin (38), a third pin (39), a first spring (41), a second spring (42) and a first pressing cap (43);

the rope cap (1) is used for being connected with a steel wire on a test vehicle, the first end (261) of the pull rod (26) is connected with the rope cap, the second end of the pull rod (26) is positioned in the upper outer sleeve (27), the second end of the pull rod (26) is provided with a first outer edge (262), a second outer edge (431) is arranged at the first end of the first pressing cap (43), the second outer edge (431) is clamped at the first end of the upper outer sleeve (27), the parts of the first pressing cap (43) except the second outer edge (431) are clamped between the inner wall of the upper outer sleeve (27) and the outer wall of the pull rod (26), the parts of the first pressing cap (43) except the second outer edge (431) are connected with the inner wall of the upper outer sleeve (27), the second end (271) of the upper outer sleeve (27) is connected with the first end (21) of the core rod (2);

a first blind hole is formed in the second end of the pull rod (26) in the axial direction, the first mounting portion (28) is located in the first blind hole and connected with the side wall of the first blind hole, a first through hole is formed in the first mounting portion (28) in the axial direction and comprises a first sub through hole and a second sub through hole, and the first sub through hole is located between the bottom of the first blind hole and the second sub through hole; the first end of the first pin (30) is located in the first sub-through hole, the second end of the first pin (30) penetrates through the second sub-through hole, a third outer edge (301) is arranged on the first end of the first pin (30), the outer diameter of the third outer edge (301) is smaller than the aperture of the first sub-through hole and larger than the aperture of the second sub-through hole, and a first groove and a second groove are arranged on the side wall of the first pin (30) and close to the second end of the first pin (30);

the second mounting part (29) is positioned in the upper outer sleeve (27) and between the second end of the pull rod (26) and the first end (21) of the core rod (2), and the second mounting part (29) is connected with the inner wall of the upper outer sleeve (27); the second mounting part (29) is provided with a second through hole in the axial direction, the second end of the first pin (30) is positioned in the second through hole, the second mounting part (29) is provided with a third through hole and a fourth through hole in the radial direction, and the third through hole and the fourth through hole are both communicated with the second through hole; the third through hole comprises a third sub through hole and a fourth sub through hole, the third sub through hole is positioned between the fourth sub through hole and the second through hole, the fourth through hole comprises a fifth sub through hole and a sixth sub through hole, and the fifth sub through hole is positioned between the sixth sub through hole and the second through hole;

a fourth outer edge (381) is arranged on the side wall of the second pin (38), the first end of the second pin (38) and the fourth outer edge (381) are located in the fourth sub through hole, the first spring (41) is sleeved on the portion, located between the first end of the second pin (38) and the fourth outer edge (381), in the side wall of the second pin (38), the end face of the second end of the second pin (38) is an arc face, and the second end of the second pin (38) penetrates through the third sub through hole and then is located in the first groove; a fifth outer edge (391) is arranged on the side wall of the third pin (39), the first end of the third pin (39) and the fifth outer edge (391) are both located in the sixth sub through hole, the second spring (42) is sleeved in the side wall of the third pin (39) and is located between the first end of the third pin (39) and the fifth outer edge (391), the end face of the second end of the third pin (39) is an arc face, and the second end of the third pin (39) passes through the fifth sub through hole and is located in the second groove;

the second end (22) of the core rod (2) is positioned in the lower outer sleeve (3), the first end of the first upper support (4) and the first end of the second upper support (5) are both connected with the second end (22) of the core rod (2), the first end of the first lower support (6) and the first end of the second lower support (7) are both connected with the inner wall of the lower outer sleeve (3), the second end of the first upper support (4) and the second end of the first lower support (6) are both movably connected with the first anti-rotation wheel (8), the second end of the second upper support (5) and the second end of the second lower support (7) are both movably connected with the second anti-rotation wheel (9), the side wall of the lower outer sleeve (3) is provided with a first sliding groove (31) and a second sliding groove (32) which are opposite in position, and the first anti-rotation wheel (8) can pass through the first sliding groove (31), the second anti-rotation wheel (9) can pass through the second sliding groove (32);

the first end (101) of the guide sleeve (10) is connected with the first end (33) of the lower outer sleeve (3), and the side wall of the guide sleeve (10) is provided with a spiral groove (102);

the first end (121) of rotator (12) is located in guide pin bushing (10), second end (122) of rotator (12) with descaling body (13) are connected, be close to on the lateral wall of rotator (12) be provided with the fifth through-hole on the position of first end (121) of rotator (12), round pin axle (11) pass behind the fifth through-hole the both ends of round pin axle (11) all are located in spiral groove (102).

2. An oil-water well mechanical pipe passing tool as claimed in claim 1, wherein the rotary descaling mechanism further comprises: the second end of the guide sleeve (10) is provided with a sixth outer edge (103);

the sheath (14) is sleeved on the guide sleeve (10), and the sheath (14) is in contact with the sixth outer edge (103).

3. An oil-water well mechanical pipe passing tool as claimed in claim 1, wherein the rotary descaling mechanism further comprises: the second end of the guide sleeve (10) is provided with a second blind hole in the longitudinal direction;

the third spring (15) and the first end (121) of the rotating body (12) are both located in the second blind hole, and the third spring (15) is arranged between the first end (121) of the rotating body (12) and the bottom of the second blind hole.

4. The oil-water well mechanical pipe-passing tool as claimed in claim 1, further comprising a hydraulic thrust mechanism, the hydraulic thrust mechanism comprising: a rubber cylinder core (16) and a rubber cylinder (17);

the rubber sleeve (17) is sleeved on the rubber sleeve core (16), the first end (161) of the rubber sleeve core (16) is connected with the second end (122) of the rotating body (12), and the second end (162) of the rubber sleeve core (16) is connected with the descaling body (13).

5. A mechanical pipe-passing tool for oil-water wells according to claim 4, characterized in that the inner wall of the rubber cylinder (17) is provided with a steel skeleton (171).

6. An oil-water well mechanical pipe-passing tool as claimed in claim 5, wherein the number of the rubber cylinders (17) is greater than or equal to 2, the oil-water well mechanical pipe-passing tool further comprises: a spacer (18);

the rubber cylinder core (16) is sleeved with the spacer (18), and the spacer (18) is arranged between every two adjacent rubber cylinders (17) in at least two rubber cylinders (17).

7. An oil-water well mechanical pipe-passing tool as claimed in claim 4, characterized in that the part of the rotating body (12) near the second end (122) of the rotating body (12) is provided with a sixth through hole (123) in the transverse direction and a third blind hole (124) in the longitudinal direction; the rubber barrel core (16) is provided with a seventh through hole (163) in the longitudinal direction; the hydraulic thrust mechanism further includes: the ball valve comprises a connecting body (19), a ball seat (20), a valve ball (23), a fourth spring (24) and a second pressing cap (25);

the sixth through hole (123) is communicated with the third blind hole (124), the third blind hole (124) is communicated with the seventh through hole (163), and the ball seat (20) is connected with the part, close to the second end (162) of the rubber sleeve core (16), in the seventh through hole (163);

the first end (191) of the connecting body (19) is connected with the second end (162) of the rubber cylinder core (16), and the second end (192) of the connecting body (19) is connected with the descaling body (13);

the connecting body (19) is provided with a fourth blind hole in the longitudinal direction, the fourth blind hole is communicated with the seventh through hole (163), the fourth spring (24) is positioned in the fourth blind hole, a first end (241) of the fourth spring (24) is contacted with the bottom of the fourth blind hole, the part, except for the outer edge of the second pressing cap (25), in the second pressing cap (25) is positioned in the fourth spring (24), the outer edge of the second pressing cap (25) is contacted with a second end (242) of the fourth spring (24), and the valve ball (23) is positioned between the ball seat (20) and the second pressing cap (25);

two water outlet grooves (193) with opposite positions are formed in the side wall of the connecting body (19), and the two water outlet grooves (193) are communicated with the fourth blind hole.

8. An oil-water well mechanical tubing tool as claimed in claim 7, wherein the descaling body (13) comprises descaling pieces (131) and a fixed shaft (132);

the fixed shaft (132) is connected with the second end (192) of the connecting body (19), and the descaling sheet (131) is connected with the side wall of the fixed shaft (132).

9. An oil-water well mechanical pipe passing tool as claimed in claim 1, wherein the rapping mechanism further comprises: a fifth spring (34);

the fifth spring (34) is sleeved on the core rod (2), a first end of the fifth spring (34) is in contact with a second end (271) of the upper outer sleeve (27), and a second end of the fifth spring (34) is in contact with a second end (40) of the lower outer sleeve (3).

10. An oil-water well mechanical pipe passing tool as claimed in claim 1, wherein the rapping mechanism further comprises: a sixth spring (44);

the sixth spring (44) is sleeved on the first pin (30), and the sixth spring (44) is located between the second sub-through hole and the third outer edge (301).

11. An oil-water well mechanical pipe-passing tool as claimed in claim 1, wherein the side wall of the upper jacket (27) is provided with an eighth through hole at a position close to the second end (271) of the upper jacket (27), the outer wall of the second mounting part is provided with a fifth blind hole, and the rapping mechanism further comprises: a stabilizing nail (45);

one end of the stable nail (45) penetrates through the eighth through hole and then is located in the fifth blind hole.

12. A mechanical tubing tool for oil and water wells as claimed in any of claims 1 to 11 wherein said rapping mechanism further comprises: an upper joint;

the first end of the upper joint is connected with the rope cap (1), and the second end of the upper joint is connected with the first end (261) of the pull rod (26).

13. A mechanical tubing tool for oil and water wells as claimed in any of claims 1 to 11 wherein said rapping mechanism further comprises: a weight bar;

the first end of the weighting rod is connected with the rope cap (1), and the second end of the weighting rod is connected with the first end (261) of the pull rod (26).