CN108119108B - Oil pipe hydraulic pressure perforating device - Google Patents

Oil pipe hydraulic pressure perforating device Download PDF

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Publication number
CN108119108B
CN108119108B CN201810126519.2A CN201810126519A CN108119108B CN 108119108 B CN108119108 B CN 108119108B CN 201810126519 A CN201810126519 A CN 201810126519A CN 108119108 B CN108119108 B CN 108119108B
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China
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punch
sliding
hydraulic press
punching
ejector rod
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CN108119108A (en
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王杰
林天源
靳虹焘
刘鑫
李想
张洪滨
刘明坤
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Panjin Yongshengli Petroleum Technology Development Co ltd
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Panjin Yongshengli Petroleum Technology Development Co ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The application discloses oil pipe hydraulic pressure perforating device includes: the device comprises a punching hydraulic press, a marking line, a stroke hydraulic press, a puncher, a pressure pump, a supporting plate, a support column and a holding tile; characterized in that, the hole puncher includes: the device comprises a top rod, a body, shear pins, wedge blocks, sliding chutes, sliding pins, a punch, a slide way and a slide shaft; one end of the ejector rod is fixedly connected with the stroke hydraulic press, and the other end of the ejector rod is fixedly connected with the wedge block through the shear pin; the body is sleeved outside the ejector rod; the end face of the wedge block, which is far away from the ejector rod, and the axis of the puncher form an included angle alpha; the end face, far away from the ejector rod, of the wedge block is provided with the sliding groove; one end of the sliding nail is embedded in the punch, and the other end of the sliding nail is in sliding connection with the sliding groove; the back of the punch is parallel to and attached to the sliding groove; the head of the punch forms a certain angle with the axis of the puncher; the tail part of the punch is provided with the sliding shaft; the sliding shaft is connected with the sliding way in a sliding manner.

Description

Oil pipe hydraulic pressure perforating device
Technical Field
The application relates to the field of oil drilling and production well repair, in particular to an oil pipe hydraulic punching device.
Background
In the process of oil exploitation, some wells are not used for a long time and abandoned, and oil pipes are not communicated with a casing. When the measure operation is needed, because the residual combustible gas or toxic and harmful gas in the sleeve can not be released and recovered, high pressure is easily generated between the oil pipe and the sleeve, and the toxic and harmful gas has huge potential safety hazard. In this case, if one or more vent holes can be formed in the oil pipe to communicate the oil pipe with the casing, the combustible gas or toxic and harmful gas is released or recovered through a pressure relief valve installed in the oil pipe section.
The petroleum in the stratum is mainly drained to the ground through a production string, and the production string mainly comprises: an oil extraction pump, an oil pipe, an oil drainer and the like. When the workover measures are needed for operation, the residual oil stored in the oil pipe is discharged into the well through the oil drainer so as to avoid ground environmental pollution and resource waste during the operation of lifting the pipe column, but when the oil drainer cannot be opened smoothly, the residual oil and sewage in the oil pipe cannot be discharged into the oil well. This problem can be effectively solved if one or more oil drainage holes can be drilled in the end of the tubing string.
Disclosure of Invention
The application provides an oil pipe hydraulic pressure perforating device to solve the problem that the high-pressure combustible gas or poisonous and harmful gas between current oil pipe and sleeve pipe can't be retrieved and the residual oil in the oil pipe can't be excreted to the well.
According to the embodiment of the application, an oil pipe hydraulic pressure perforating device is provided, includes: the punching device comprises a punching hydraulic press, a marking line arranged above the punching hydraulic press, a stroke hydraulic press connected to the lower end of the punching hydraulic press, a puncher connected with the other end of the stroke hydraulic press, a pressure pump arranged on the puncher, a supporting plate fixed below the punching hydraulic press, a support column forming a frame structure with the supporting plate and a holding tile fixed at one end of the support column, which is far away from the supporting plate; characterized in that, the hole puncher includes: the device comprises a top rod, a body, shear pins, wedge blocks, sliding chutes, sliding pins, a punch, a slide way and a slide shaft;
one end of the ejector rod is fixedly connected with the stroke hydraulic press, and the other end of the ejector rod is fixedly connected with the wedge block through the shear pin;
the body is sleeved outside the ejector rod;
the end face of the wedge block, which is far away from the ejector rod, and the axis of the puncher form an included angle alpha;
the end face, far away from the ejector rod, of the wedge block is provided with the sliding groove;
one end of the sliding nail is embedded in the punch, and the other end of the sliding nail is in sliding connection with the sliding groove;
the back of the punch is parallel to and attached to the sliding groove; the head of the punch forms a certain angle with the axis of the puncher; the tail part of the punch is provided with the sliding shaft;
the sliding shaft is connected with the sliding way in a sliding manner.
Optionally, the included angle α formed by the end face of the wedge away from the ejector rod and the axis of the puncher is less than or equal to 20 °.
Optionally, the head of the punch is provided with a conical tip.
Optionally, the inner wall of the body is provided with a reverse thread.
Optionally, a stop is arranged at one end of the puncher, which is far away from the ejector rod.
Optionally, the perforating hydraulic press comprises several hydraulic presses connected in parallel.
Optionally, the punch is made of alloy steel 60Si2 Mn.
Known by the above technique, this application provides an oil pipe hydraulic pressure perforating device, includes: the punching device comprises a punching hydraulic press, a marking line arranged above the punching hydraulic press, a stroke hydraulic press connected to the lower end of the punching hydraulic press, a puncher connected with the other end of the stroke hydraulic press, a pressure pump arranged on the puncher, a supporting plate fixed below the punching hydraulic press, a support column forming a frame structure with the supporting plate and a holding tile fixed at one end of the support column, which is far away from the supporting plate; characterized in that, the hole puncher includes: the device comprises a top rod, a body, shear pins, wedge blocks, sliding chutes, sliding pins, a punch, a slide way and a slide shaft; one end of the ejector rod is fixedly connected with the stroke hydraulic press, and the other end of the ejector rod is fixedly connected with the wedge block through the shear pin; the body is sleeved outside the ejector rod; the end face of the wedge block, which is far away from the ejector rod, and the axis of the puncher form an included angle alpha; the end face, far away from the ejector rod, of the wedge block is provided with the sliding groove; one end of the sliding nail is embedded in the punch, and the other end of the sliding nail is in sliding connection with the sliding groove; the back of the punch is parallel to and attached to the sliding groove; the head of the punch forms a certain angle with the axis of the puncher; the tail part of the punch is provided with the sliding shaft; the sliding shaft is connected with the sliding way in a sliding manner. During the use, oil pipe hydraulic pressure perforating device installs in wellhead department, and is fixed through the armful tile to by fagging and pillar to provide reliable holding power to integrated device. The stroke hydraulic press is hermetically fixed on a valve of a wellhead, the pressure in the well is checked by using a pressure gauge, when the pressure in the well exceeds a rated value, the height of the supporting plate is adjusted, the stroke hydraulic press is started, and the puncher is pushed to extend into the well by positive pressing of the stroke hydraulic press; and the puncher is pulled to exit the well through the reverse pressing of the stroke hydraulic press. And pushing the puncher to a punching position in the well through adjustment. When the puncher reaches the punching position, the punching hydraulic press is started, positive pressure is applied to the punching hydraulic press, a piston in the punching hydraulic press can drive an ejector rod to move downwards, the ejector rod drives a wedge block to move downwards at the same time, due to the limitation of a sliding shaft and a slide way, a sliding nail drives a punch to slide along a sliding groove and the slide way, and at the moment, the head of the punch gradually protrudes in the horizontal direction to further pierce the outer oil pipe wall of the puncher. And in the punching process, the pressure pump and the marking line are monitored at any time, so that whether punching is finished or not is judged. After punching, the punching hydraulic press is reversely pressed, the puncher is reset, the whole device is detached from the wellhead, and the punching hydraulic press is reserved for next use. The application provides a pair of oil pipe hydraulic pressure perforating device can punch on oil pipe, as one or more exhaust holes on oil pipe, makes oil pipe and sleeve pipe intercommunication, and combustible gas or poisonous and harmful gas pass through the exhaust hole, releases or retrieves by the relief valve of installing in the oil pipe section. And this trompil also can effectively solve the profit and excrete the problem, and the perforating device that this embodiment provided can effectively solve the unable problem of retrieving and the unable residual oil of oil pipe in the unable drainage to the well of the high-pressure combustible gas or the poisonous and harmful gas between current oil pipe and sleeve pipe.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of an oil pipe hydraulic perforating device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a hole puncher provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a punch according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a parallel hydraulic press according to an embodiment of the present application.
Illustration of the drawings:
wherein: 1-ejector rod, 2-body, 21-thread, 3-shear pin, 4-wedge block, 5-chute, 6-slide pin, 7-punch head, 71-back, 72-head, 73-tail, 8-slideway, 9-slide shaft, 10-stop, 100-marking line, 200-punching hydraulic press, 201-hydraulic press, 300-supporting plate, 400-stroke hydraulic press, 500-pressure pump, 600-punching press, 700-support column, 800-holding tile and 900-well head.
Detailed Description
See fig. 1-3.
This embodiment provides an oil pipe hydraulic pressure perforating device, includes: the punching hydraulic press comprises a punching hydraulic press 200, a marking line 100 arranged above the punching hydraulic press 200, a stroke hydraulic press 400 connected to the lower end of the punching hydraulic press 200, a punching machine 600 connected with the other end of the stroke hydraulic press 400, a pressure pump 500 arranged on the punching machine 600, a supporting plate 300 fixed below the punching hydraulic press 200, a support column 700 forming a frame structure with the supporting plate 300 and a holding tile 800 fixed at one end of the support column 700 far away from the supporting plate 300; characterized in that said punch 600 comprises: the device comprises a mandril 1, a body 2, shear pins 3, wedge blocks 4, a sliding groove 5, sliding pins 6, a punch 7, a slideway 8 and a sliding shaft 9;
one end of the ejector rod 1 is fixedly connected with the stroke hydraulic press 400, and the other end of the ejector rod is fixedly connected with the wedge block 4 through the shear pin 3;
the body 2 is sleeved outside the ejector rod 1;
the end face of the wedge block 4, which is far away from the ejector rod 1, forms an included angle alpha with the axis of the puncher 600;
the end face, far away from the ejector rod 1, of the wedge block 4 is provided with the sliding groove 5;
one end of the sliding nail 6 is embedded in the punch 7, and the other end of the sliding nail is in sliding connection with the sliding groove 5;
the back 71 of the punch 7 is parallel to and attached to the chute 5; the head 72 of the punch 7 is at an angle to the axis of the punch 600; the tail 73 of the punch 7 is provided with the sliding shaft 9;
the slide shaft 9 is connected with the slide way 8 in a sliding way.
When the oil pipe hydraulic perforating device is used, the oil pipe hydraulic perforating device is arranged at the wellhead 900 and is fixed through the holding tile 800, and a supporting plate 300 and the supporting columns 700 provide reliable supporting force for the whole device. The stroke hydraulic press 400 is hermetically fixed on a valve of a wellhead 900, the pressure in the well is checked by using the pressure pump 500, when the pressure in the well exceeds a rated value, the height of the supporting plate 300 is adjusted, the stroke hydraulic press 400 is opened, and the puncher 600 is pushed to extend into the well by positive pressing of the stroke hydraulic press 400; the punch 600 is pulled out of the well by the reverse blow of the travel hydraulic press 400. The punch 600 is pushed, by adjustment, to a punching position within the well. When the puncher 600 reaches a punching position, the punching hydraulic press 200 is started, the punching hydraulic press 200 applies positive pressure, a piston in the punching hydraulic press 200 drives the ejector rod 1 to move downwards, at the moment, the ejector rod 1 drives the wedge block 4 to move downwards simultaneously, due to the limitation of the sliding shaft 9 and the slide rail 8, the sliding pin 6 drives the punch 7 to slide along the sliding groove 5 and the slide rail 8, at the moment, the head 72 of the punch 7 protrudes gradually in the horizontal direction, and then the oil pipe wall outside the puncher 600 is pierced. In the punching process, the pressure pump 500 and the marking line 100 are monitored at any time, and when the pressure is reduced to the range of the rated pressure value, the main shaft of the puncher 600 is lowered to the marking line 100, and the punching is judged to be finished. After the punching is finished, the punching hydraulic press 200 is reversely pressed, the ejector rod 1 moves upwards, the pulling wedge block 4 moves upwards, the sliding nail 6 drives the punch 7 to slide along the sliding groove 5 and the sliding way 8, the head 72 of the punch 7 is gradually withdrawn in the horizontal direction, the puncher 600 resets, the whole device is detached from the wellhead 900, and the whole device is reserved for next use. The application provides an oil pipe hydraulic pressure perforating device can punch on oil pipe, as one or more draining holes of oil pipe to effectively will solve the profit and excrete the problem, and this trompil makes oil pipe and sleeve pipe intercommunication as one or more exhaust holes on oil pipe, and combustible gas or poisonous and harmful gas pass through the exhaust hole, by the relief valve release or the recovery of installing at the oil pipe section. The perforating device that this embodiment provided can effectively solve the remaining oil in the current oil pipe and the unable problem of retrieving of high-pressure gas between oil pipe and sleeve pipe.
Optionally, the angle α formed by the end surface of the wedge 4 away from the ejector rod 1 and the axis of the punch 600 is less than or equal to 20 °.
The punching hydraulic press 200 applies positive pressure to the punch 600, the ejector rod 1 applies axial pressure to the wedge block 4, the lower end face of the wedge block 4 forms an included angle alpha with the axis, so that the axial pressure can be decomposed into propelling force along the lower end face and radial force applied to the punch 7 by being perpendicular to the lower end face at the lower end face of the wedge block 4, and the propelling force pushes the slide pin 6 to drive the punch 7 to slide upwards along the sliding groove 5; the radial force provides pressure for the punch 7 to pierce the tubing wall, the thrust force is calculated according to the formula (1),
f=F·cosα(1)
wherein F represents the propelling force, F represents the axial pressure exerted by the mandril 1 on the wedge block 4, and alpha represents the included angle between the lower end surface of the wedge block 4 and the axial line.
The smaller the angle alpha is, the larger the propelling force is, the larger the force of the wedge block 4 reacting on the slide pin 6 to drive the punch 7 to move upwards along the chute 5 is, and the larger the radial force generated by the punch 7 is, the stronger the piercing effect of the punch 7 on the wall of the oil pipe is. Therefore, selecting an angle of 20 ° or less as the inclination angle of the wedge 4 improves the punching capability and efficiency of the punch 600.
Optionally, the head 72 of the punch 7 is provided with a conical tip.
The head of the punch 7 can be in a shape of a truncated cone, a pyramid and the like, the cross sectional area of which is gradually reduced from the head 72 to the direction of the oil pipe wall, and the shape can reduce the contact area between the head 72 of the punch 7 and the oil pipe wall, increase the pressure and further enhance the piercing force. The conical head 72 is preferably provided with a sharp end, so that the piercing force is stronger, and the piercing efficiency can be effectively improved; and its surface is smooth curved surface, and the hole of beating is the round hole, and according to mechanical properties, circular shape circumference atress is the most even, is difficult for appearing the torn problem of round hole, and the hole that the pyramid head 72 was beaten is the square hole, has the closed angle, consequently has great stress in square hole closed angle department, causes the tearing of square hole easily, causes bigger damage to oil pipe.
Optionally, the inner wall of the body 2 is provided with a reverse thread 21.
When the hole puncher 600 is used, if the punch is stuck in the wall of the oil pipe and cannot be taken out, or the hole puncher 600 is stuck in oil stain of the oil pipe, and the like, the inner diameter of the oil pipe is very small and is only 12-13 mm generally, so that the hole puncher 600 cannot be pulled out of the oil pipe by means of an extra traction device. Assuming that the screw assembly direction of the integral punching device is A and the reverse direction is B, the direction for screwing the parts of the punching device into the well is A, the hole puncher 600 and the integral punching device are screwed by the body 2, and the screw 201 of the body 2 adopts the reverse screw, namely the assembly direction is B. When hole puncher 600 card is stayed in oil pipe, when unable taking out, then according to the rotatory whole perforating device of B direction, make perforating device and well break away from mutually, the direction of rotation at this moment is hole puncher 600 and whole perforating device's assembly direction just, then it is rotatory continuously along this direction, can make body 2 and perforating device take place to trip, and apply the power of lifting that is greater than shear pin 3's rated bearing capacity to ejector pin 1, make the shear pin fracture, thereby make hole puncher 600 and whole perforating device separate, stay in the well and treat follow-up taking out. The perforating device structure that this embodiment provided can make its effect in practical application more perfect, avoids the unexpected card of hole puncher 600 to hang up the condition emergence in oil pipe, and can't in time take out, delays the emergence of the problem of whole production.
Optionally, a stopper 10 is disposed at an end of the punch 600 away from the top bar 1.
Wedge block 4 moves down under the effect of ejector pin 1, and is relative, and smooth nail 6 drives drift 7 and upwards moves along spout 5 to the horizontal direction motion, in order to prevent drift 7 unrestricted upwards and to the horizontal direction motion, avoid punching too big or smooth nail 6 drops from spout 5, cause the damage that can't compensate to oil pipe and hole puncher 600, install dog 10 at hole puncher 600 lower extreme. Simultaneously, dog 10 can play the effect of location, when transferring hole puncher 600 to in the oil pipe, because other partial structures of hole puncher 600 are more complicated, the observation point is difficult for discerning, consequently regard as the observation point with the dog 10 of shape rule, can obtain the position of punching comparatively accurate relatively to the order punches not only can go on smoothly, can obtain the optimal position of punching moreover, and the quality of punching is higher.
Referring to fig. 4, optionally, the perforating hydraulic press 200 includes several hydraulic presses 201 in parallel.
The punching hydraulic press 200 provides pressure for the ram 1 through the internal hydraulic press 201, and the area of the piston in the hydraulic press 201 is small due to the small inner diameter of the oil pipe, so that obviously, the pressure provided by the single hydraulic press 201 can hardly reach the radial force required by the punch 7 to pierce the wall of the oil pipe. In order to increase the total pressure of the hydraulic press 201, the present embodiment provides a punching apparatus that connects a plurality of hydraulic presses 201 in parallel and simultaneously applies pressure to the ram 1. By superposing the pressure provided by the single hydraulic press 201, the pressure applied to the ejector rod 1 is greatly improved, so that the piercing effect of the punch 7 on the wall of the oil pipe is greatly improved, and the punching efficiency is improved.
Alternatively, the punch 7 is made of alloy steel 60Si2 Mn.
The oil pipe is usually made of low-carbon steel, such as 20 # steel, and has high strength, in order to successfully puncture the wall of the oil pipe, the punch 7 is made of a material with higher strength, the 60Si2Mn is made of low-alloy high-strength steel, elements such as Mn and the like are added into the low-carbon steel, the strength can be greatly improved, and the punch 7 made of the punch can well puncture the wall of the oil pipe and cannot break. In addition, the oil pipe has residual oil stain and is corrosive, and in order to prolong the service life of the puncher 600, the punch 7 is made of the material 60Si2Mn with high corrosion resistance, so that the punch 7 can keep high strength after being used for a long time and is not corroded and damaged.
According to the above technical scheme, this application provides an oil pipe hydraulic pressure perforating device, includes: the punching hydraulic press comprises a punching hydraulic press 200, a marking line 100 arranged above the punching hydraulic press 200, a stroke hydraulic press 400 connected to the lower end of the punching hydraulic press 200, a punching machine 600 connected with the other end of the stroke hydraulic press 400, a pressure pump 500 arranged on the punching machine 600, a supporting plate 300 fixed below the punching hydraulic press 200, a support column 700 forming a frame structure with the supporting plate 300 and a holding tile 800 fixed at one end of the support column 700 far away from the supporting plate 300; characterized in that said punch 600 comprises: the device comprises a mandril 1, a body 2, shear pins 3, wedge blocks 4, a sliding groove 5, sliding pins 6, a punch 7, a slideway 8 and a sliding shaft 9; one end of the ejector rod 1 is fixedly connected with the stroke hydraulic press 400, and the other end of the ejector rod is fixedly connected with the wedge block 4 through the shear pin 3; the body 2 is sleeved outside the ejector rod 1; the end face of the wedge block 4, which is far away from the ejector rod 1, forms an included angle alpha with the axis of the puncher 600; the end face, far away from the ejector rod 1, of the wedge block 4 is provided with the sliding groove 5; one end of the sliding nail 6 is embedded in the punch 7, and the other end of the sliding nail is in sliding connection with the sliding groove 5; the back 71 of the punch 7 is parallel to and attached to the chute 5; the head 72 of the punch 7 is at an angle to the axis of the punch 600; the tail 73 of the punch 7 is provided with the sliding shaft 9; the slide shaft 9 is connected with the slide way 8 in a sliding way.
When the oil pipe hydraulic perforating device is used, the oil pipe hydraulic perforating device is arranged at the wellhead 900 and is fixed through the holding tile 800, and a supporting plate 300 and the supporting columns 700 provide reliable supporting force for the whole device. The stroke hydraulic press 400 is hermetically fixed on a valve of a wellhead 900, the pressure in the well is checked by using the pressure pump 500, when the pressure in the well exceeds a rated value, the height of the supporting plate 300 is adjusted, the stroke hydraulic press 400 is opened, and the puncher 600 is pushed to extend into the well by positive pressing of the stroke hydraulic press 400; the punch 600 is pulled out of the well by the reverse blow of the travel hydraulic press 400. The punch 600 is pushed, by adjustment, to a punching position within the well. When the puncher 600 reaches a punching position, the punching hydraulic press 200 is started, the punching hydraulic press 200 applies positive pressure, a piston in the punching hydraulic press 200 drives the ejector rod 1 to move downwards, at the moment, the ejector rod 1 drives the wedge block 4 to move downwards simultaneously, due to the limitation of the sliding shaft 9 and the slide rail 8, the sliding pin 6 drives the punch 7 to slide along the sliding groove 5 and the slide rail 8, at the moment, the head 72 of the punch 7 protrudes gradually in the horizontal direction, and then the oil pipe wall outside the puncher 600 is pierced. In the punching process, the pressure pump 500 and the marking line 100 are monitored at any time, and when the pressure is reduced to the range of the rated pressure value, the main shaft of the puncher 600 is lowered to the marking line 100, and the punching is judged to be finished. After the punching is finished, the punching hydraulic press 200 is reversely pressed, the ejector rod 1 moves upwards, the pulling wedge block 4 moves upwards, the sliding nail 6 drives the punch 7 to slide along the sliding groove 5 and the sliding way 8, the head 72 of the punch 7 is gradually withdrawn in the horizontal direction, the puncher 600 resets, the whole device is detached from the wellhead 900, and the whole device is reserved for next use. The application provides an oil pipe hydraulic pressure perforating device can punch on oil pipe, as one or more draining holes of oil pipe to effectively will solve the profit and excrete the problem, and this trompil makes oil pipe and sleeve pipe intercommunication as one or more exhaust holes on oil pipe, and combustible gas or poisonous and harmful gas pass through the exhaust hole, by the relief valve release or the recovery of installing at the oil pipe section. The perforating device that this embodiment provided can effectively solve the remaining oil in the current oil pipe and the unable problem of retrieving of high-pressure gas between oil pipe and sleeve pipe.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (6)

1. An oil pipe hydraulic pressure perforating device includes: the punching device comprises a punching hydraulic press (200), a marking line (100) arranged above the punching hydraulic press (200), a stroke hydraulic press (400) connected to the lower end of the punching hydraulic press (200), a punching device (600) connected with the other end of the stroke hydraulic press (400), a pressure pump (500) arranged on the punching device (600), a supporting plate (300) fixed below the punching hydraulic press (200), a support column (700) forming a frame structure with the supporting plate (300) and a holding tile (800) fixed at one end, far away from the supporting plate (300), of the support column (700); characterized in that said punch (600) comprises: the device comprises a push rod (1), a body (2), shear pins (3), wedge blocks (4), a sliding groove (5), sliding pins (6), a punch (7), a slide way (8) and a sliding shaft (9);
one end of the ejector rod (1) is fixedly connected with the stroke hydraulic press (400), and the other end of the ejector rod is fixedly connected with the wedge block (4) through the shear pin (3);
the body (2) is sleeved outside the ejector rod (1);
the end face, far away from the ejector rod (1), of the wedge block (4) forms an included angle alpha with the axis of the puncher (600);
the end face, far away from the ejector rod (1), of the wedge block (4) is provided with the sliding groove (5);
one end of the sliding nail (6) is embedded in the punch (7), and the other end of the sliding nail is in sliding connection with the sliding groove (5);
the back (71) of the punch (7) is parallel to and attached to the sliding groove (5); the head (72) of the punch (7) is at an angle to the axis of the punch (600); the tail part (73) of the punch (7) is provided with the sliding shaft (9);
the sliding shaft (9) is connected with the slideway (8) in a sliding manner;
the head (72) of the punch (7) is provided with a conical tip.
2. Perforating device according to claim 1, characterized in that the end face of the wedge (4) remote from the ejector pin (1) makes an angle α with the axis of the punch (600) which is smaller than or equal to 20 °.
3. Perforating device according to claim 1, characterized in that the inner wall of the body (2) is provided with a counter-thread (21).
4. Perforating device according to claim 1, characterized in that the end of the punch (600) remote from the ejector pin (1) is provided with a stop (10).
5. Perforating device according to claim 1, characterized in that the perforating hydraulic press (200) comprises several hydraulic presses (201) connected in parallel.
6. Perforating device as claimed in claim 1, characterized in that said punch (7) is made of alloy steel 60Si2 Mn.
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CN108979600B (en) * 2018-09-11 2023-11-14 西安荣达石油工程有限公司 Oil pipe puncher and method for solving blocking problem of choke

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