CN108119108A - A kind of oil pipe hydraulic pressure perforating device - Google Patents
A kind of oil pipe hydraulic pressure perforating device Download PDFInfo
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- CN108119108A CN108119108A CN201810126519.2A CN201810126519A CN108119108A CN 108119108 A CN108119108 A CN 108119108A CN 201810126519 A CN201810126519 A CN 201810126519A CN 108119108 A CN108119108 A CN 108119108A
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- Prior art keywords
- punch
- mandril
- voussoir
- card punch
- hydraulic press
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
Abstract
This application discloses a kind of oil pipe hydraulic pressure perforating device, including：Punch hydraulic press, mark line, stroke hydraulic device, card punch, compression pump, fagging, pillar and axis tile；It is characterized in that, the card punch includes：Mandril, body, shear pin, voussoir, sliding slot, sliding nail, punch, slideway and slide-bar；One end of the mandril is fixedly connected with the stroke hydraulic device, and the other end is fixedly connected with the voussoir by the shear pin；The outer cover of the mandril has the body；End face of the voussoir away from the mandril and the axis of the card punch make an angle alpha；End face of the voussoir away from the mandril is equipped with the sliding slot；One end of the sliding nail is embedded in inside the punch, and the other end is slidably connected with the sliding slot；The back of the punch is parallel with the sliding slot and is bonded；The axis of the head of the punch and the card punch is at an angle；The afterbody of the punch is equipped with the slide-bar；The slide-bar is slidably connected with the slideway.
Description
Technical field
This application involves petroleum drilling and mining well workover field more particularly to a kind of oil pipe hydraulic pressure perforating devices.
Background technology
During oil exploitation, some Long-time Shut-down wells and abandoned well, oil pipe are not connected with casing.Make when needing measure
During industry, due to fuel gas or toxic and harmful gas remaining in casing can not release and recovery, easily between oil pipe and casing
High pressure is generated, and toxic and harmful gas can there are huge security risks.In this case if can be made a call on oil pipe one or
Multiple gas vents, make oil pipe be connected with casing, and fuel gas or toxic and harmful gas are released by being mounted on the relief valve of oil pipe section
It puts or recycles.
Oil in stratum mainly drains into ground by flow string, and flow string mainly includes：Oil extraction pump, oil
Pipe, bleeder etc..Storing residual petroleum when needing well workover measure operation, in oil pipe will be drained by bleeder to well, with
Exempt to cause ground environment to pollute and the wasting of resources in lift pipe string operation, but when bleeder is unable to smooth opening, remain in oil pipe
In oil and sewage will be unable to excretion in oil well.If one or more outages can be beaten on tubing string end, you can
Effectively solve the problems, such as this.
The content of the invention
This application provides a kind of oil pipe hydraulic pressure perforating device, to solve the high pressure fuel gas between existing oil pipe and casing
Or toxic and harmful gas can not recycle and oil pipe in remaining oil the problem of can not draining to well.
According to an embodiment of the present application, a kind of oil pipe hydraulic pressure perforating device is provided, including：Punching hydraulic press is arranged at
Mark line above the punching hydraulic press, the stroke hydraulic device for being connected to the punching hydraulic press lower end, with the stroke liquid
Card punch that the other end of depressor is connected, the compression pump being arranged on the card punch are fixed under the punching hydraulic press
The fagging of side forms the pillar of frame structure with the fagging and is fixed on the pillar embracing away from described fagging one end
Watt；It is characterized in that, the card punch includes：Mandril, body, shear pin, voussoir, sliding slot, sliding nail, punch, slideway and slide-bar；
One end of the mandril is fixedly connected with the stroke hydraulic device, and the other end is fixed with the voussoir by the shear pin
Connection；
The outer cover of the mandril has the body；
End face of the voussoir away from the mandril and the axis of the card punch make an angle alpha；
End face of the voussoir away from the mandril is equipped with the sliding slot；
One end of the sliding nail is embedded in inside the punch, and the other end is slidably connected with the sliding slot；
The back of the punch is parallel with the sliding slot and is bonded；The head of the punch and the axis of the card punch are in
Certain angle；The afterbody of the punch is equipped with the slide-bar；
The slide-bar is slidably connected with the slideway.
Optionally, the axis of end face of the voussoir away from the mandril and the card punch make an angle alpha be less than or
Equal to 20 °.
Optionally, the head of the punch is equipped with conical tip.
Optionally, the inner wall of the body is equipped with reverse thread.
Optionally, the one end of the card punch away from the mandril is equipped with block.
Optionally, the punching hydraulic press includes the hydraulic press of several parallel connections.
Optionally, the punch is made of steel alloy 60Si2Mn.
From more than technology, this application provides a kind of oil pipe hydraulic pressure perforating device, including：It punches hydraulic press, set
In the mark line punched above hydraulic press, it is connected to the stroke hydraulic device of the punching hydraulic press lower end and the stroke
Card punch that the other end of hydraulic press is connected, the compression pump being arranged on the card punch are fixed on the punching hydraulic press
The fagging of lower section forms the pillar of frame structure with the fagging and is fixed on the pillar embracing away from described fagging one end
Watt；It is characterized in that, the card punch includes：Mandril, body, shear pin, voussoir, sliding slot, sliding nail, punch, slideway and slide-bar；Institute
The one end for stating mandril is fixedly connected with the stroke hydraulic device, and the other end is fixedly connected with the voussoir by the shear pin；It is described
The outer cover of mandril has the body；End face of the voussoir away from the mandril and the axis of the card punch make an angle alpha；Institute
End face of the voussoir away from the mandril is stated equipped with the sliding slot；One end of the sliding nail is embedded in inside the punch, the other end
It is slidably connected with the sliding slot；The back of the punch is parallel with the sliding slot and is bonded；The head of the punch is beaten with described
The axis of hole device is at an angle；The afterbody of the punch is equipped with the slide-bar；The slide-bar is slidably connected with the slideway.Make
Used time, oil pipe hydraulic pressure perforating device are installed at well head, are fixed by axis tile, and single unit system is provided by fagging and pillar
Reliable support force.Stroke hydraulic device is sealingly fastened on the valve of well head, pressure in well is examined using pressure gauge, when well internal pressure
During strong overrate, the height of fagging, and opening travel hydraulic press are adjusted, is suppressed by the forward direction of stroke hydraulic device, promoted
Card punch is stretched in well；By reversely suppressing for stroke hydraulic device, card punch is pulled to exit outside well.By adjusting by card punch
Push to the punch position in well.When card punch reaches punch position, then start punching hydraulic press, punching hydraulic press applies just
To pressure, the piston punched in hydraulic press can drive mandril to move down, and mandril band dynamic voussoir moves down simultaneously at this time, due to
The limitation of slide-bar and slideway, sliding nail drives punch to be slided along sliding slot and slideway, at this point, the head of punch is gradually convex in the horizontal direction
Go out, and then pierce through the tubing wall outside card punch.In drill process, compression pump and mark line are monitored at any time, so as to judge to punch
Whether complete.After punching, punching hydraulic press is reversely suppressed, and card punch is made to reset, single unit system from well head is removed, is stayed
Treat next use.A kind of oil pipe hydraulic pressure perforating device that the application provides, can be by punching, as on oil pipe on oil pipe
One or more gas vents, make oil pipe be connected with casing, and fuel gas or toxic and harmful gas are by gas vent, by being mounted on oil
The relief valve release or recycling of pipeline section.And the perforate also can effectively solve grease stool problems, punching provided in this embodiment
Device can effectively solve the problem that high pressure fuel gas between existing oil pipe and casing or toxic and harmful gas can not recycle and oil pipe in
Remaining oil the problem of can not draining to well.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structure diagram of oil pipe hydraulic pressure perforating device provided by the embodiments of the present application；
Fig. 2 is a kind of structure diagram of card punch provided by the embodiments of the present application；
Fig. 3 is a kind of structure diagram of punch provided by the embodiments of the present application；
Fig. 4 is a kind of structure diagram of parallel hydraulic device provided by the embodiments of the present application.
It illustrates：
Wherein：1- mandrils, 2- bodies, 21- screw threads, 3- shear pins, 4- voussoirs, 5- sliding slots, 6- slide nail, 7- punches, the 71- back ofs the body
Portion, 72- heads, 73- afterbodys, 8- slideways, 9- slide-bars, 10- blocks, 100- mark lines, 200- punching hydraulic presses, 201- hydraulic pressure
Device, 300- faggings, 400- stroke hydraulic devices, 500- compression pumps, 600- card punch, 700- pillars, 800- axis tiles, 900- well heads.
Specific embodiment
Referring to Fig. 1~Fig. 3.
A kind of oil pipe hydraulic pressure perforating device is present embodiments provided, including：Punching hydraulic press 200 is arranged at the punching
The mark line 100 of 200 top of hydraulic press, the stroke hydraulic device 400 for being connected to 200 lower end of the punching hydraulic press and the row
Card punch 600 that the other end of journey hydraulic press 400 is connected, the compression pump 500 being arranged on the card punch 600 are fixed on
The fagging 300 of 200 lower section of punching hydraulic press forms the pillar 700 of frame structure with the fagging 300 and is fixed on institute
State axis tile 800 of the pillar 700 away from described 300 one end of fagging；It is characterized in that, the card punch 600 includes：Mandril 1, body
2nd, shear pin 3, voussoir 4, sliding slot 5, sliding nail 6, punch 7, slideway 8 and slide-bar 9；
One end of the mandril 1 is fixedly connected with the stroke hydraulic device 400, and the other end is cut with the voussoir 4 by described
Nail 3 is fixedly connected；
The outer cover of the mandril 1 has the body 2；
End face of the voussoir 4 away from the mandril 1 and the axis of the card punch 600 make an angle alpha；
End face of the voussoir 4 away from the mandril 1 is equipped with the sliding slot 5；
One end of the sliding nail 6 is embedded in inside the punch 7, and the other end is slidably connected with the sliding slot 5；
The back 71 of the punch 7 is parallel with the sliding slot 5 and is bonded；The head 72 of the punch 7 and the card punch
600 axis is at an angle；The afterbody 73 of the punch 7 is equipped with the slide-bar 9；
The slide-bar 9 is slidably connected with the slideway 8.
In use, oil pipe hydraulic pressure perforating device is installed at well head 900, fixed by axis tile 800, and by fagging 300
With pillar 700 reliable support force is provided to single unit system.Stroke hydraulic device 400 is sealingly fastened on the valve of well head 900, profit
Pressure in well is examined with compression pump 500, when pressure overrate in well, adjusts the height of fagging 300, and opening travel liquid
Depressor 400 is suppressed by the forward direction of stroke hydraulic device 400, and card punch 600 is promoted to stretch in well；Pass through stroke hydraulic device 400
It reversely suppresses, card punch 600 is pulled to exit outside well.By adjusting card punch 600 to be pushed to the punch position in well.When beating
When hole device 600 reaches punch position, then start punching hydraulic press 200, punching hydraulic press 200 applies positive pressure, punches hydraulic pressure
Piston in device 200 can drive mandril 1 to move down, and mandril 1 moves down simultaneously with dynamic voussoir 4 at this time, due to slide-bar 9 and slide
The limitation in road 8, sliding 6 drive punch 7 of nail is slided along sliding slot 5 and slideway 8, at this point, the head 72 of punch 7 is gradually convex in the horizontal direction
Go out, and then pierce through the tubing wall outside card punch 600.In drill process, compression pump 500 and mark line 100 are monitored at any time, works as pressure
Power is dropped in the range of rated pressure value, and 600 place main shaft of card punch is dropped at mark line 100, then judges that punching is completed.It beats
After hole, punching hydraulic press 200 is reversely suppressed, and mandril 1 moves up, and voussoir 4 is pulled to move up, and sliding nail 6 drives punch 7
It is slided along sliding slot 5 and slideway 8, the head 72 of punch 7 is made gradually to withdraw in the horizontal direction, card punch 600 resets, by single unit system
It is removed from well head 900, remains next use.The oil pipe hydraulic pressure perforating device that the application provides, can be by beating on oil pipe
Hole, as one or more oil leak holes of oil pipe, so as to will effectively solve grease stool problems, and the perforate is as on oil pipe
One or more gas vents, oil pipe is made to be connected with casing, fuel gas or toxic and harmful gas are by gas vent, by being mounted on
The relief valve release or recycling of oil pipe section.Perforating device provided in this embodiment can effectively solve the problem that residual in the existing oil pipe of solution
Deposit the irretrievable problem of gases at high pressure between oil and oil pipe and casing.
Optionally, the axis of end face of the voussoir 4 away from the mandril 1 and the card punch 600, which makes an angle alpha, is less than
Or equal to 20 °.
It punches hydraulic press 200 and applies positive pressure to card punch 600, mandril 1 applies axial compressive force to voussoir 4, due to wedge
The lower face of block 4 makes an angle alpha with axis, therefore the axial compressive force can be decomposed into pushing away along lower face at the lower face of voussoir 4
Into power and perpendicular to the radial load that lower face applies punch 7, which promotes sliding nail 6 to drive punch 7 upward along sliding slot 5
It slides；The radial load punctures tubing wall for punch 7 and provides pressure, and propulsive force is calculated according to formula (1),
F=Fcos α (1)
Wherein, f represents propulsive force, and F represents the axial compressive force that mandril 1 applies voussoir 4, α represent the lower face of voussoir 4 with
The angle of axis.
Since α angles are smaller, then propulsive force is bigger, and voussoir 4 reacts on sliding 6 drive punch 7 of nail and moved upwards along sliding slot 5
Power it is bigger, radial load caused by similary punch 7 is bigger, and punch 7 is stronger to the diapirism of tubing wall.Therefore,
Angle α is selected to improve the punching ability and efficiency of card punch 600 for 20 ° or even inclination angle of the smaller angle as voussoir 4.
Optionally, the head 72 of the punch 7 is equipped with conical tip.
Truncated cone-shaped, cone, pyramid iso-cross-section product may be employed from head 72 to tubing wall direction in the head of punch 7
The shape being gradually reduced, the shape can reduce the head 72 of punch 7 and the contact area of tubing wall, increase pressure, Jin Erzeng
Strong force of piercing.Preferred conical head 72, there are tips, have stronger force of piercing, can effectively improve perforating efficiency；And
And its outer surface is smooth surface, the hole beaten is circular hole, and according to mechanical property, circular circumferential direction stress is the most uniform, is not easy
There is the problem of circular hole tear, and 72 punched hole of pyramid head is square hole, is existed there are wedge angle, therefore in square hole sharp corner
Larger stress be easy to cause the tear of square hole, and the damage of bigger is caused to oil pipe.
Optionally, the inner wall of the body 2 is equipped with reverse thread 21.
Card punch 600 when in use, if running into punch interim card can not take out or 600 interim card of card punch in tubing wall
In in the greasy dirt of oil pipe situations such as, since pipe aperture is very small, 12~13mm is generally only, therefore, it is impossible to by along entering volume
Card punch 600 is drawn flowline by outer draft gear.Assuming that the Screw assembly direction of single punch device is A, it is then reversely
The spiral everywhere of perforating device is fixed on the direction in well for A by B, and card punch 600 passes through 2 spiral shell of body with single punch device
It is fixed to be rotated with, and the screw thread 201 of body 2 uses reverse thread, i.e. assembly direction is B.When 600 interim card of card punch is in oil pipe, nothing
When method is taken out, then single punch device is rotated according to B directions, making perforating device, direction of rotation at this time is proper with being separated in well
It is well the assembly direction of card punch 600 and single punch device, is then persistently rotated along the direction, body 2 can be made to be filled with punching
It puts and threads off, and the upper lifting force of the specified endurance of shear pin 3 is applied more than to mandril 1, shear pin is made to be broken, so as to make card punch
600 separate with single punch device, stay in well and treat subsequently to take out.Perforating device structure provided in this embodiment, can make it
Effect in practical applications is more perfect, avoids the unexpected interim card of card punch 600 in happening in oil pipe, and can not be timely
The generation for the problem of taking out, delaying whole production.
Optionally, the one end of the card punch 600 away from the mandril 1 is equipped with block 10.
Voussoir 4 moves downward under the action of mandril 1, opposite, and sliding 6 drive punch 7 of nail is moved upwards along sliding slot 5, and
To horizontal motion, punch 7 is unconfined upwards and to horizontal motion in order to prevent, avoids punching excessive or sliding nail
6 come off from sliding slot 5, and the damage that can not be made up is caused to oil pipe and card punch 600, and block 10 is installed in 600 lower end of card punch.Together
When, block 10 can play positioning, when transferring in card punch 600 to oil pipe, due to 600 other parts structure ratio of card punch
More complicated, observation point is not easy to identify, therefore using the block 10 of regular shape as observation point, you can it obtains relatively accurate
Punch position so as to make punching that can not only be smoothed out, and can obtain optimal punch position, make drilling quality more
It is high.
Referring to Fig. 4, optionally, the punching hydraulic press 200 includes the hydraulic press 201 of several parallel connections.
Punching hydraulic press 200 provides pressure by internal hydraulic press 201 for mandril 1, since the internal diameter of oil pipe is smaller, because
The area of this 201 inner carrier of hydraulic press is also smaller, it is clear that the pressure that single hydraulic press 201 is provided is extremely difficult to punch 7 and pierces through
Radial load needed for tubing wall.In order to increase the gross pressure of hydraulic press 201, the present embodiment provides a kind of by several hydraulic presses 201
It is in parallel, while the perforating device of pressure is provided for mandril 1.The pressure provided by being superimposed single hydraulic press 201, makes mandril
1 pressure being subject to greatly improves, and then greatly improves puncture effect of the punch 7 to tubing wall, so as to lifting, punching efficiency.
Optionally, the punch 7 is made of steel alloy 60Si2Mn.
Oil pipe generally use mild steel, such as No. 20 steel are made, and have higher intensity, in order to successfully puncture tubing wall,
It then needs to make punch 7 using the higher material of intensity, 60Si2Mn is Hi-Stren steel, and Mn is with the addition of in mild steel
Elements are waited, intensity can be greatly promoted, can be good at piercing through tubing wall as the punch 7 made by it, and will not be broken.
In addition, there is corrosivity there are remaining greasy dirt in oil pipe, in order to extend the service life of card punch 600, using with high resistance to
Corrosive material 60Si2Mn makes punch 7,7 long-time of punch can be made using high intensity is still kept, without the damage that is corroded
It is bad.
From above technical scheme, this application provides a kind of oil pipe hydraulic pressure perforating device, including：Punch hydraulic press
200th, the mark line 100 for being arranged at 200 top of punching hydraulic press, the stroke for being connected to 200 lower end of the punching hydraulic press
Hydraulic press 400, the card punch 600 being connected with the other end of the stroke hydraulic device 400 are arranged on the card punch 600
Compression pump 500, be fixed on the fagging 300 of punching hydraulic press 200 lower section, form frame structure with the fagging 300
Pillar 700 and it is fixed on axis tile 800 of the pillar 700 away from described 300 one end of fagging；It is characterized in that, the punching
Device 600 includes：Mandril 1, body 2, shear pin 3, voussoir 4, sliding slot 5, sliding nail 6, punch 7, slideway 8 and slide-bar 9；The mandril 1
One end is fixedly connected with the stroke hydraulic device 400, and the other end is fixedly connected with the voussoir 4 by the shear pin 3；The mandril
1 outer cover has the body 2；The axis of end face of the voussoir 4 away from the mandril 1 and the card punch 600 is in angle
α；End face of the voussoir 4 away from the mandril 1 is equipped with the sliding slot 5；One end of the sliding nail 6 is embedded in the punch 7
Portion, the other end are slidably connected with the sliding slot 5；The back 71 of the punch 7 is parallel with the sliding slot 5 and is bonded；The punch 7
Head 72 and the card punch 600 axis at an angle；The afterbody 73 of the punch 7 is equipped with the slide-bar 9；The cunning
Axis 9 is slidably connected with the slideway 8.
In use, oil pipe hydraulic pressure perforating device is installed at well head 900, fixed by axis tile 800, and by fagging 300
With pillar 700 reliable support force is provided to single unit system.Stroke hydraulic device 400 is sealingly fastened on the valve of well head 900, profit
Pressure in well is examined with compression pump 500, when pressure overrate in well, adjusts the height of fagging 300, and opening travel liquid
Depressor 400 is suppressed by the forward direction of stroke hydraulic device 400, and card punch 600 is promoted to stretch in well；Pass through stroke hydraulic device 400
It reversely suppresses, card punch 600 is pulled to exit outside well.By adjusting card punch 600 to be pushed to the punch position in well.When beating
When hole device 600 reaches punch position, then start punching hydraulic press 200, punching hydraulic press 200 applies positive pressure, punches hydraulic pressure
Piston in device 200 can drive mandril 1 to move down, and mandril 1 moves down simultaneously with dynamic voussoir 4 at this time, due to slide-bar 9 and slide
The limitation in road 8, sliding 6 drive punch 7 of nail is slided along sliding slot 5 and slideway 8, at this point, the head 72 of punch 7 is gradually convex in the horizontal direction
Go out, and then pierce through the tubing wall outside card punch 600.In drill process, compression pump 500 and mark line 100 are monitored at any time, works as pressure
Power is dropped in the range of rated pressure value, and 600 place main shaft of card punch is dropped at mark line 100, then judges that punching is completed.It beats
After hole, punching hydraulic press 200 is reversely suppressed, and mandril 1 moves up, and voussoir 4 is pulled to move up, and sliding nail 6 drives punch 7
It is slided along sliding slot 5 and slideway 8, the head 72 of punch 7 is made gradually to withdraw in the horizontal direction, card punch 600 resets, by single unit system
It is removed from well head 900, remains next use.The oil pipe hydraulic pressure perforating device that the application provides, can be by beating on oil pipe
Hole, as one or more oil leak holes of oil pipe, so as to will effectively solve grease stool problems, and the perforate is as on oil pipe
One or more gas vents, oil pipe is made to be connected with casing, fuel gas or toxic and harmful gas are by gas vent, by being mounted on
The relief valve release or recycling of oil pipe section.Perforating device provided in this embodiment can effectively solve the problem that residual in the existing oil pipe of solution
Deposit the irretrievable problem of gases at high pressure between oil and oil pipe and casing.
It should be appreciated that the precision architecture that the application is not limited to be described above and be shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by appended claim.
Claims (7)
1. a kind of oil pipe hydraulic pressure perforating device, including：Punching hydraulic press (200) is arranged above the punching hydraulic press (200)
Mark line (100), be connected to it is described punching hydraulic press (200) lower end stroke hydraulic device (400), with the stroke hydraulic device
(400) card punch (600) that the other end is connected, the compression pump (500) being arranged on the card punch (600) are fixed on
Fagging (300) below punching hydraulic press (200), the pillar (700) that frame structure is formed with the fagging (300) and
It is fixed on axis tile (800) of the pillar (700) away from the fagging (300) one end；It is characterized in that, the card punch
(600) include：Mandril (1), body (2), shear pin (3), voussoir (4), sliding slot (5), cunning nail (6), punch (7), slideway (8) and cunning
Axis (9)；
One end of the mandril (1) is fixedly connected with the stroke hydraulic device (400), and the other end is with the voussoir (4) by described
Shear pin (3) is fixedly connected；
The outer cover of the mandril (1) has the body (2)；
End face and the axis of the card punch (600) of the voussoir (4) away from the mandril (1) make an angle alpha；
End face of the voussoir (4) away from the mandril (1) is equipped with the sliding slot (5)；
One end of the sliding nail (6) is embedded in the punch (7) inside, and the other end is slidably connected with the sliding slot (5)；
The back (71) of the punch (7) is parallel with the sliding slot (5) and is bonded；The head (72) of the punch (7) with it is described
The axis of card punch (600) is at an angle；The afterbody (73) of the punch (7) is equipped with the slide-bar (9)；
The slide-bar (9) is slidably connected with the slideway (8).
2. perforating device according to claim 1, which is characterized in that end face of the voussoir (4) away from the mandril (1)
It is made an angle alpha with the axis of the card punch (600) less than or equal to 20 °.
3. perforating device according to claim 1, which is characterized in that the head (72) of the punch (7) is equipped with cone
Tip.
4. perforating device according to claim 1, which is characterized in that the inner wall of the body (2) is equipped with reverse thread
(21)。
5. perforating device according to claim 1, which is characterized in that the separate mandril (1) of the card punch (600)
One end is equipped with block (10).
6. perforating device according to claim 1, which is characterized in that the punching hydraulic press (200) includes several parallel connections
Hydraulic press (201).
7. perforating device according to claim 1, which is characterized in that the punch (7) uses steel alloy 60Si2Mn systems
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126519.2A CN108119108B (en) | 2018-02-08 | 2018-02-08 | Oil pipe hydraulic pressure perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126519.2A CN108119108B (en) | 2018-02-08 | 2018-02-08 | Oil pipe hydraulic pressure perforating device |
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| CN108119108A true CN108119108A (en) | 2018-06-05 |
| CN108119108B CN108119108B (en) | 2022-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979600A (en) * | 2018-09-11 | 2018-12-11 | 西安荣达石油工程有限公司 | A kind of oil pipe punch and solve the problems, such as the method that flow nipple blocks |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108979600A (en) * | 2018-09-11 | 2018-12-11 | 西安荣达石油工程有限公司 | A kind of oil pipe punch and solve the problems, such as the method that flow nipple blocks |
| 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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