CN105817524A - Perforating device for oil pipe - Google Patents
Perforating device for oil pipe Download PDFInfo
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- CN105817524A CN105817524A CN201610113614.XA CN201610113614A CN105817524A CN 105817524 A CN105817524 A CN 105817524A CN 201610113614 A CN201610113614 A CN 201610113614A CN 105817524 A CN105817524 A CN 105817524A
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- actuator
- oil
- card punch
- joint
- plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of petroleum machinery and discloses a perforating device for an oil pipe. The perforating device comprises an oil pipe joint and a perforating unit. The oil pipe joint is installed at the head end of the perforating unit. The perforating unit comprises at least one perforator. Each perforator comprises a piston cylinder and a perforating mechanism. Each piston cylinder comprises a cylinder body and a piston rod. Each perforating mechanism comprises a tool body, a punching head, a driving piece, a limiting piece, a stopping block, a first positioning piece and a second positioning piece. Each piston rod is fixedly connected with the corresponding driving piece. Each tool body is fixedly connected with the corresponding cylinder body. Each punching head is installed on the corresponding tool body through the corresponding first positioning piece and is in transmission connection with the tool body. Each stopping block is installed on the corresponding tool body through the corresponding second positioning piece. After each first positioning piece is sheared off, the corresponding driving piece moves to a middle station, punching is conducted on the oil pipe through the punching end of the corresponding punching head, and the driving piece is limited through the corresponding stopping block. After each second positioning piece is sheared off, the corresponding driving piece drives the corresponding stopping block to move to a final station, and the corresponding punching head is pulled back into the corresponding tool body. The perforating device for the oil pipe can form stable holes and cannot damage sleeves.
Description
Technical field
The present invention relates to technical field of petroleum machinery, particularly relate to a kind of oil pipe perforating device.
Background technology
In the development operation of oil and natural gas, in order to there is between oil pipe and annular space circulation canal during ensureing Oil/gas Well underground work, it is often necessary to punch on tubing wall, and current, and on tubing wall, punching is realized by perforating gun.
In the construction operation of perforating gun, by cable or coiled tubing, perforating gun is transferred to down-hole and need the target zone of perforation, detonate the pressure detonator being connected with coiled tubing by cable detonating capsule or by coiled tubing pressurization, and then the perforating bullet in primacord and firing mount that detonates, thus the metal jet of perforating bullet penetrates in gun body corresponding outer blind hole and oil pipe and the central canal of packer, so that oil pipe and sleeve pipe communicate, but, the hole randomness formed by perforating gun is the biggest, there is the possibility being shot through casing wall irregular and perforating bullet the metal jet pole of hole shape.But, Oil/gas Well job requirements forms stable hole, and ensures not damage in the case of perforate sleeve pipe on oil pipe.
Summary of the invention
The present invention provides a kind of oil pipe perforating device, and this device can form stable hole in the case of not damaging sleeve pipe.
A kind of oil pipe perforating device, including oil connection and perforation unit, described oil connection is installed on the head end of described perforation unit, described perforation unit includes at least one joint card punch, the described card punch of each joint includes piston cylinder and perforating mechanism, described piston cylinder includes that cylinder body and piston rod, described perforating mechanism include tool body, drift, actuator, locating part, block, the first keeper, the second keeper, wherein:
Described piston rod can be slidably mounted in described cylinder body along described cylinder body length direction, and the end of described piston rod is fixing with the head end of described actuator is connected, the head end of described cylinder body is provided with oil-in, and when described card punch operation, the oil-in of described cylinder body head end connects with the oilhole of described oil connection；
The end of the head end of described tool body and described cylinder body is fixing to be connected, and described tool body is provided with for making described drift along being perpendicular to pilot hole that described cylinder body length direction moves and being internally formed the sliding chamber along the extension of described cylinder body length direction；Described drift is installed in described pilot hole by the first keeper；Described actuator can be slidably mounted to described sliding intracavity along described cylinder body length direction and be connected with described punch driver；Described block is installed on described tool body by the second keeper, and the force value of cutting off of the second keeper cuts off force value more than the first keeper, and described tool body is provided with the axial groove for making block slide along described cylinder body length direction；When described actuator is in initial station, it is relatively fixed between described actuator and described drift and described tool body；When described actuator is more than when cutting off force value of described first keeper to the active force of described drift, described first keeper is cut off, described actuator moves to intermediate stations to the end direction of described tool body, the punching end of described drift stretches out described tool body with to oil pipe punching, and described block is spacing to described actuator by locating part；When described actuator is more than when cutting off force value of the second keeper to the force value of described block, described second keeper is cut off, described actuator drives described block to move to final station to described tool body end, and described drift is pulled in described tool body.
In above-mentioned oil pipe perforating device, after oil pipe perforating device is transferred to the destination locations of Oil/gas Well, pressurize in the oil pipe being connected with oil connection, hydraulic oil enters in perforation unit in the cylinder body of each joint card punch by the oilhole of oil connection, in each joint card punch, actuator now is positioned at initial station, hydraulic oil in cylinder body provides an active force towards card punch end to piston rod, and then makes the drift generation active force fixing the actuator being connected with piston rod to being in transmission connection therewith.
Increase along with the hydraulic oil pressure in cylinder body, when actuator is more than when cutting off force value of the first keeper to the active force of drift, first keeper is cut off, actuator moves to the quick direction of the end of card punch along cylinder body length direction at the sliding intracavity of tool body under the promotion of piston rod, and then make drift quickly move to the direction towards oil pipe to be punctured along being perpendicular to cylinder body length direction under the driving of actuator, so that the punching end of drift goes out tool body to punch oil pipe, when actuator moves to intermediate stations along cylinder body length direction to the end direction of card punch, block is spacing to actuator by locating part, now, drift moves the terminal to punching stroke along being perpendicular to cylinder body length direction to the direction towards oil pipe to be punctured.
Along with the oil pressure of the hydraulic oil in cylinder body continues to increase, when actuator is more than when cutting off force value of the second keeper to the active force of block, second keeper is cut off, actuator drives block to move along cylinder body length direction to the end direction of card punch, drift edge under the driving of actuator is perpendicular to cylinder body length direction and moves to the direction deviating from the oil pipe completing punching, when actuator moves to final station along cylinder body length direction to the end direction of card punch, drift is pulled in tool body, now, drift moves to the terminal retracting stroke along being perpendicular to cylinder body length direction towards the direction deviating from the oil pipe completing punching, the punching work of card punch completes.
Therefore, in above-mentioned oil pipe perforating device, owing to being to use drift to punch oil pipe when punching, and the moving direction of drift, shift motion and shape determine, therefore can form stable hole on oil pipe when punching, and will not damage sleeve pipe.
Preferably, described axial groove connects with described pilot hole, and described block is installed on the head end of described axial groove by the second keeper；
Described drift deviates from the surface of its punching end and forms the first inclined-plane and guide rail hooks, between described first inclined-plane and described cylinder body length direction angled in towards the angle of tool body end direction be acute angle；
Described actuator is provided with the second inclined-plane, 3rd inclined-plane, 4th inclined-plane and step surface, described second inclined-plane is positioned at the side towards tool body end, described 3rd inclined-plane, and between described second inclined-plane and described cylinder body length direction angled in towards the angle in tool body head end direction be acute angle, and the 3rd between inclined-plane and described cylinder body length direction angled in towards the angle of tool body end direction be acute angle, described 4th inclined-plane is parallel with described 3rd inclined-plane, and the side on described 3rd inclined-plane is deviated from towards described actuator, described step surface connects described second inclined-plane and the 3rd inclined-plane, and towards the end of described tool body；
Described locating part can be slidably mounted in described pilot hole along being perpendicular to described cylinder body length direction, and described locating part deviates from the surface parallel with described 3rd inclined-plane, towards tool body end, surface of actuator and offsets towards the surface of tool body head end with described block；
When described actuator is in initial station, described locating part is between described drift and described actuator, and described locating part is parallel with described second inclined-plane towards the one side of actuator and offsets, described locating part is parallel with the first inclined-plane towards the one side on described first inclined-plane and offsets, and the structure face that described guide rail hooks offsets towards the one side of actuator with described locating part；
When described actuator is in intermediate stations, described locating part offsets towards the surface of tool body head end with described step surface, the surface of the actuator side that offsets towards surface and the described block of tool body end towards the surface of tool body head end, deviate from is concordant with described 3rd inclined-plane；
When described actuator to tool body end direction after intermediate stations, the first inclined-plane of described drift be slidably matched with described 3rd inclined-plane and described guide rail hook hook face be slidably matched with described 4th inclined-plane.
Preferably, the position forming described 3rd inclined-plane in described actuator is formed with slide rail, and it is described 4th inclined-plane that described slide rail deviates from the one side on described 3rd inclined-plane.
Preferably, threaded between the head end of described actuator and the end of described piston rod, and be provided with static sealing ring between the head end of described piston rod and described actuator.
Preferably, actuator deviates from the side on described second inclined-plane and the 3rd inclined-plane and is formed with dovetail configuration, and described tool body is provided with the dovetail groove being slidably matched with described dovetail configuration.
Preferably, the union joint that the head end of described tool body has through hole with the end of described cylinder body by centre is connected, and described piston rod runs through described through hole.
Preferably, described first keeper includes at least one pin, and/or, described second keeper includes at least one pin.
Preferably, described oil connection is provided with external screw thread, the cylinder body of the card punch of described perforation unit head end is provided with the female thread of the external screw thread cooperation with described oil connection and is connected, the cylinder body threaded engagement of the card punch of described oil connection and described perforation unit head end, and at threaded engagement, it is provided with static sealing ring.
Preferably, described perforation unit includes at least two joint card punch, wherein:
In described at least two joint card punch, in each joint card punch in addition to minor details card punch, piston rod is provided with the first oil-through hole running through its length direction, actuator is provided with head end and the second oil-through hole of the first oil-through hole end connection, the end of described tool body is provided with the oil-out that the oil-in arranged with oil cylinder head end in later section card punch connects, if and only if time described actuator is in final station, and described second oil-through hole is connected by snap joint between described oil-out.
Preferably, at the described at least two described card punch of each joint saving card punch, the head end of actuator forms rectangular structure, and the rectangular structure that head end is formed is provided with the screwed hole that the end thread with described piston rod is connected；And in each joint card punch in addition to minor details card punch, the end of the screwed hole that the rectangular structure that actuator head end is formed has and the head end connection of the second oil-through hole, the end of actuator forms rectangular structure, and the female of snap joint is installed on the screwed hole that the rectangular structure of end formation is provided with.
Preferably, saving card punch described at least two, the tool body of previous joint card punch is connected by joint union joint with the cylinder body of next joint card punch；And in each joint card punch in addition to minor details card punch, described joint union joint is provided with the 3rd oil-through hole, the oil-in that the end of described 3rd oil-through hole is arranged with oil cylinder head end in later section card punch connects；The head end of described joint union joint is provided with the screwed hole connected with the 3rd oil-through hole, and the male of described snap joint is threadeded with the screwed hole of described joint union joint；And save between card punch every two, it is provided with static sealing ring between the cylinder body of described joint union joint and next joint card punch.
Preferably, in the described at least one described card punch of each joint saving card punch, described block forms the groove extended along cylinder body length direction, and described actuator runs through described groove；And in each joint card punch in addition to minor details card punch, the end surface of described locating part is formed with projection, described projection stretches in described groove and to deviate from the surface of described actuator side relative with the bottom surface of described groove.
Preferably, the outer surface of described block is formed with the slide rail extended along described cylinder body length direction, and described tool body is provided with the chute extended along cylinder body length direction, and described slide rail coordinates with described slide.
Accompanying drawing explanation
The structural representation of a kind of oil pipe perforation unit that Fig. 1 provides for the present invention；
The A-A of a kind of oil pipe perforating device that Fig. 2 provides for the present invention is to sectional view；
The structural representation of the drift of a kind of oil pipe perforating device that Fig. 3 provides for the present invention；
The structural representation of a kind of oil pipe perforating device that Fig. 4 provides for the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
As shown in Figure 1, a kind of oil pipe perforating device, including oil connection 1 and perforation unit 2, oil connection 1 is installed on the head end of perforation unit 2, perforation unit 2 includes at least one joint card punch, and each joint card punch includes piston cylinder 21 and perforating mechanism 22, and piston cylinder 21 includes cylinder body 211 and piston rod 212, perforating mechanism 22 includes tool body 221, drift 224, actuator 222, locating part 223, block the 225, first keeper the 227, second keeper 226, wherein:
Piston rod 212 can be slidably mounted in cylinder body 211 along cylinder body 211 length direction, and the head end of the end of piston rod 212 and actuator 222 is fixing is connected, the head end of cylinder body 211 is provided with oil-in, and when card punch operation, the oil-in of cylinder body 211 head end connects with the oilhole of oil connection 1；
The end of the head end of tool body 221 and cylinder body 211 is fixing to be connected, and tool body 221 is provided with for making drift 224 along being perpendicular to pilot hole that cylinder body 211 length direction moves and being internally formed the sliding chamber along the extension of cylinder body 211 length direction；Drift 224 is installed in pilot hole by the first keeper 227；Actuator 222 can be slidably mounted to intracavity along cylinder body 211 length direction and be in transmission connection with drift 224；Block 225 is installed on tool body 221 by the second keeper 226, and the force value of cutting off of the second keeper 226 cuts off force value more than the first keeper 227, and tool body 221 is provided with the axial groove for making block 225 slide along cylinder body 211 length direction；When actuator 222 is in initial station, it is relatively fixed between actuator 222 and drift 224 and tool body 221；When actuator 222 is more than when cutting off force value of the first keeper 227 to the active force of drift 224, first keeper 227 is cut off, actuator 222 moves to intermediate stations to the end direction of tool body 221, the punching end extending tool body 221 of drift 224 is with to oil pipe punching, and block 225 is spacing to actuator 222 by locating part 223；When the force value of block 225 is cut off by actuator 222 more than when cutting off force value of the second keeper 226, the second keeper 226, and actuator 222 drives block 225 to move to final station to tool body 221 end, and drift 224 is pulled in tool body 221.
In above-mentioned oil pipe perforating device, after oil pipe perforating device is transferred to the destination locations of Oil/gas Well, pressurize in the oil pipe being connected with oil connection 1, hydraulic oil enters in perforation unit 2 in the cylinder body 211 of each joint card punch by the oilhole of oil connection 1, in each joint card punch, actuator 222 now is positioned at initial station, hydraulic oil in cylinder body 211 provides an active force towards card punch end to piston rod 212, and then makes the actuator 222 that be connected fixing with piston rod 212 that the drift 224 being in transmission connection therewith is produced active force.
nullIncrease along with the hydraulic oil pressure in cylinder body 211，When actuator 222 is more than when cutting off force value of the first keeper 227 to the active force of drift 224，First keeper 227 is cut off，Actuator 222 quickly moves to the end direction of card punch along cylinder body 211 length direction at the sliding intracavity of tool body 221 under the promotion of piston rod 212，And then make drift 224 quickly move to the direction towards oil pipe to be punctured along being perpendicular to cylinder body 211 length direction under the driving of actuator 222，So that the punching end of drift 224 goes out tool body 221 with to oil pipe punching，When actuator 222 moves to intermediate stations along cylinder body 211 length direction to the end direction of card punch，Block 225 is spacing to actuator 222 by locating part 223，Now，Drift 224 moves the terminal to punching stroke along being perpendicular to cylinder body 211 length direction to the direction towards oil pipe to be punctured.
nullAlong with the oil pressure of the hydraulic oil in cylinder body 211 continues to increase，When actuator 222 is more than when cutting off force value of the second keeper 226 to the active force of block 225，Second keeper 226 is cut off，Actuator 222 drives block 225 to move along cylinder body 211 length direction to the end direction of card punch，Drift 224 edge under the driving of actuator 222 is perpendicular to cylinder body 211 length direction and moves to the direction deviating from the oil pipe completing punching，When actuator 222 moves to final station along cylinder body 211 length direction to the end direction of card punch，Drift 224 is pulled in tool body 221，Now，Drift 224 moves to the terminal retracting stroke along being perpendicular to cylinder body 211 length direction towards the direction deviating from the oil pipe completing punching，The punching work of card punch completes.
Therefore, in above-mentioned oil pipe perforating device, owing to being to use drift 224 to punch oil pipe when punching, and the moving direction of drift 224, shift motion and shape determine, therefore can form stable hole on oil pipe when punching, and will not damage sleeve pipe.
As shown in Figure 1, Figure 2 and shown in Fig. 3, in a kind of preferred implementation, axial groove connects with pilot hole, and block 225 passes through the second keeper 226 and is installed on the head end of axial groove；
Drift 224 deviates from the surface of its punching end and forms the first inclined-plane 2241 and guide rail hooks 2242, between the first inclined-plane 2241 and cylinder body 211 length direction angled in towards the angle of tool body 221 end direction be acute angle；
Actuator 222 is provided with the second inclined-plane 2224, 3rd inclined-plane 2221, 4th inclined-plane 2223 and step surface 2222, second inclined-plane 2224 is positioned at the side towards tool body 221 end, the 3rd inclined-plane 2221, and second between inclined-plane 2224 and cylinder body 211 length direction angled in towards the angle in tool body 221 head end direction be acute angle, and the 3rd between inclined-plane 2221 and cylinder body 211 length direction angled in towards the angle of tool body 221 end direction be acute angle, 4th inclined-plane 2223 is parallel with the 3rd inclined-plane 2221, and the side on the 3rd inclined-plane 2221 is deviated from towards actuator 222, step surface 2222 connects the second inclined-plane 2224 and the 3rd inclined-plane 2221, and towards the end of tool body 221；
Locating part 223 can be slidably mounted in pilot hole along being perpendicular to cylinder body 211 length direction, and locating part 223 deviates from the surface parallel with the 3rd inclined-plane 2221, towards tool body 221 end, surface of actuator 222 and offsets towards the surface of tool body 221 head end with block 225；
When actuator 222 is in initial station, locating part 223 is between drift 224 and actuator 222, and locating part 223 is parallel with the second inclined-plane 2224 towards the one side of actuator 222 and offsets, locating part 223 is parallel with the first inclined-plane 2241 towards the one side on the first inclined-plane 2241 and offsets, and guide rail hooks the structure face of 2242 and offsets towards the one side of actuator 222 with locating part 223；
When actuator 222 is in intermediate stations, locating part 223 offsets towards the surface of tool body 221 head end with step surface 2222, the surface of actuator 222 side that offsets towards surface and the block 225 of tool body 221 end towards the surface of tool body 221 head end, deviate from is concordant with the 3rd inclined-plane 2221；
When actuator 222 to tool body 221 end direction after intermediate stations, the first inclined-plane 2241 of drift 224 be slidably matched with the 3rd inclined-plane 2221 and guide rail hook 2242 hook face be slidably matched with the 4th inclined-plane 2223.
nullIn each joint card punch，When actuator 222 is in initial station，Drift 224 is connected by the first keeper 227 is fixing with tool body 221，In hydraulic oil enters into cylinder body 211，Hydraulic oil in cylinder body 211 provides an active force towards card punch end to piston rod 212，And then make the actuator 222 of connection fixed thereto is produced active force，And owing to locating part 223 now is parallel with the second inclined-plane 2224 towards the one side of actuator 222 and offsets，Locating part 223 is parallel with the first inclined-plane 2241 towards the one side on the first inclined-plane 2241 and offsets，And the structure face of guide rail hook 2242 offsets towards the one side of actuator 222 with locating part 223，And then actuator 222 produces active force by locating part 223 to drift 224，Rising along with hydraulic oil pressure，Actuator 222 produces active force by locating part 223 and increases drift 224，When actuator 222 is more than when cutting off force value of the first keeper 227 to the active force of drift 224，First keeper 227 is cut off，Make the first keeper 227 to drift 224 and the spacing disappearance of tool body 221，Now，Drift 224 can move along the length direction being perpendicular to cylinder body 211 relative to tool body 221.
nullAfter the first keeper 227 is cut off，Actuator 222 quickly moves along cylinder body 211 length direction to the end direction of card punch under the promotion of piston rod 212，Locating part 223 is driven to slide towards the one side of actuator 222 along the second inclined-plane 2224，And then drive the first inclined-plane 2241 of drift 224 to deviate from the one side slip of actuator 222 along locating part 223，And owing to locating part 223 and drift 224 are arranged in pilot hole，And between the second inclined-plane 2224 of actuator 222 and cylinder body 211 length direction angled in towards the angle in tool body 221 head end direction be acute angle，Between first inclined-plane 2241 and cylinder body 211 length direction of drift 224 angled in towards the angle of tool body 221 end direction be acute angle，Therefore，Under the effect of actuator 222，Locating part 223 and drift 224 quickly move along being perpendicular to cylinder body 211 length direction direction towards oil pipe to be punctured，So that the punching end of drift 224 goes out tool body 221 with to oil pipe punching.
When locating part 223 moves to locating part 223 and offsets with step surface 2222 towards the surface of tool body 221 head end along being perpendicular to cylinder body 211 length direction direction towards oil pipe to be punctured, deviate from the surface of actuator 222 side concordant with the 3rd inclined-plane 2221 time, actuator 222 moves to intermediate stations to the end direction of tool body 221, now, drift 224 moves the terminal to punching stroke along being perpendicular to cylinder body 211 length direction to the direction towards oil pipe to be punctured, and now, block 225 is fixedly connected on tool body 221 by the second keeper 226, therefore actuator 222 motion stops.
Along with the oil pressure of the hydraulic oil in cylinder body 211 continues to increase, the active force passing through the spacing block 225 of locating part 223 therewith is increased by the actuator 222 that be connected fixing with piston rod 212, when actuator 222 is more than when cutting off force value of the second keeper 226 to the active force of block 225, second keeper 226 is cut off, making the second keeper 226 to block 225 and the spacing disappearance of tool body 221, now block 225 can move along the length direction of cylinder body 211 relative to tool body 221 in axial groove.
nullWhen the second keeper 226 is cut off，Owing to locating part 223 offsets towards the surface of tool body 221 head end with step surface 2222、The surface deviating from actuator 222 side is concordant with the 3rd inclined-plane 2221，Therefore the first inclined-plane 2241 of drift 224 is slidably matched with the 3rd inclined-plane 2221、And the hook face of guide rail hook 2242 is slidably matched with the 4th inclined-plane 2223，Actuator 222 moves along cylinder body 211 length direction to the end direction of card punch under the promotion of piston rod 212，Block 225 is driven to move to tool body 221 end，Drive drift 224 to move along being perpendicular to cylinder body 211 length direction simultaneously，Due between the first inclined-plane 2241 and cylinder body 211 length direction of now drift 224 angled in towards the angle of tool body 221 end direction be acute angle，Between 3rd inclined-plane 2221 and cylinder body 211 length direction of actuator 222 angled in towards the angle of tool body 221 end direction be acute angle，Therefore drift 224 along be perpendicular to cylinder body 211 length direction to deviate from complete punch oil pipe direction move.
When actuator 222 moves to final station along the length direction of cylinder body 211, drift 224 is pulled in tool body 221, now, drift 224 moves to the terminal retracting stroke along being perpendicular to cylinder body 211 length direction towards the direction deviating from the oil pipe completing punching, and the punching work of card punch completes.
nullIn the work process of above-mentioned each joint card punch，Move to the direction towards oil pipe to be punctured owing to the moving direction edge before this of drift 224 is perpendicular to cylinder body 211 length direction，Followed by along be perpendicular to cylinder body 211 length direction to deviate from complete punch oil pipe direction move，Therefore drift 224 is to move along the length direction of cylinder body 211 all the time in whole drill process，The moving direction of drift 224、Shift motion determines，And the shape of drift 224 determines in drill process，The most each joint card punch all can form stable hole on oil pipe to be punctured，And by actuator 222 when moving to intermediate stations，Locating part 223 offsets towards the surface of tool body 221 head end with step surface 2222、Offset towards the surface of tool body 221 head end towards the surface of tool body 221 end with block 225、The surface deviating from actuator 222 side is concordant with the 3rd inclined-plane 2221，Now drift 224 arrives the terminal of punching stroke，By limiting the punching stroke of drift 224，And then ensure that and can get a hole in drill process on oil pipe to be punctured，And sleeve pipe will not be caused damage again simultaneously.
For above-mentioned oil pipe perforating device, in whole shift motion, in the punching stroke stage, contact surface between drift 224 and locating part 223 is the first inclined-plane 2241, contact surface between locating part 223 and actuator 222 is the second inclined-plane 2224, in retracting stroke, contact surface between drift 224 and drive block 222 is the 3rd inclined-plane 2221 and the 4th inclined-plane 2223, due to drift 224 and locating part 223, locating part 223 and actuator 222, the face contacted between drift 224 with drive block 222 and coordinate is inclined-plane, and the scarf wedgewise effect coordinated to contact in motor process, the motor process making drift 224 is more stable.
Specifically, on the basis of meeting card punch punching functions, by making drift 224 preferably to remove in the hole that it is beaten, as shown in Figure 1, Figure 2 and shown in Fig. 3, the position forming the 3rd inclined-plane 2221 in actuator 222 is formed with slide rail, and it is the 4th inclined-plane 2223 that slide rail deviates from the one side on the 3rd inclined-plane 2221.
nullAfter a hole got on oil pipe to be punctured by drift 224，The punching end of drift 224 now is positioned at its hole beaten on oil pipe，Tubing wall has the active force of clamping to the punching end of drift 224，And locating part 223 now moves to the direction towards oil pipe to be punctured to locating part 223 and offsets with step surface 2222 towards the surface of tool body 221 head end along being perpendicular to cylinder body 211 length direction、The surface deviating from actuator 222 side is concordant with the 3rd inclined-plane 2221，First inclined-plane 2241 of drift 224 is slidably matched with the 3rd inclined-plane 2221，The guide rail of drift 224 hooks 2242 and catches on the slide rail on actuator 222，And the hook face of guide rail hook 2242 is slidably matched with the 4th inclined-plane 2223，When actuator 222 continues to move to along cylinder body 211 length direction to the end direction of card punch，The first inclined-plane 2241 driving drift 224 has the trend slided in the direction facing away from completing the oil pipe of punching along the 3rd inclined-plane 2221，Slide rail on the guide rail hook 2242 of drift 224 and actuator 222 matches and is combined into one pull-back forces of hole offer that the top of drift 224 is left on oil pipe，When the pull-back forces suffered by drift 224 is more than the active force that tubing wall has clamping to the punching end of drift 224，The punching end of drift 224 leaves the hole on the oil pipe completing punching，And under the drive of actuator 222，Drift 224 moves along being perpendicular to cylinder body 211 length direction to deviating from the direction completing oil pipe.
Specifically, in order to realize the stability and the sealing that connect between actuator 222 and piston rod 212, threaded between the head end of actuator 222 and the end of piston rod 212, and be provided with static sealing ring between the head end of piston rod 212 and actuator 222.
Head end at actuator 222 arranges a screwed hole, and the external screw thread that the corresponding threaded holes arranged with the head end of actuator 222 closes is set at the end of piston rod 212, by the threaded engagement between head end and the end of piston rod 212 of actuator 222, realize the fixing connection of actuator 222 and piston rod 212, realize from piston rod 212 to the transmittance process of the power of actuator 222, when i.e. the hydraulic oil in cylinder body 211 provides an active force towards card punch end to piston rod 212, piston rod 212 drives the actuator 222 of connection fixed thereto that locating part 223 is produced active force.It addition, on the basis of meeting and fixing linkage function between actuator 222 and piston rod 212, other can also be selected to be capable of other connected modes of this function between head end and the end of piston rod 212 in conjunction with concrete actual actuator 222.
Static sealing ring is for guaranteeing the sealing between the stationary face contacted between the head end of piston rod 212 and actuator 222; prevent the leakage of hydraulic oil in the work process of oil pipe perforating device; ensure in the work process of oil pipe perforating device stablizing of oil pressure in card punch simultaneously; the selection of static sealing ring can be determined according to practical situation; typically can select O RunddichtringO, it is also possible to for other any sealing rings that disclosure satisfy that static seal requirement.
Specifically, as shown in Figure 1, Figure 2 and shown in Fig. 3, in order to ensure that actuator 222 smoothly can slide in the sliding chamber in tool body 221, actuator 222 deviates from the side on the second inclined-plane 2224 and the 3rd inclined-plane 2221 and is formed with dovetail configuration, and tool body 221 is provided with the dovetail groove being slidably matched with dovetail configuration.
Actuator 222 along cylinder body 211 length direction during the end of card punch moves, actuator 222 deviates from the dovetail groove that dovetail configuration and the tool body 221 that the side on the second inclined-plane 2224 and the 3rd inclined-plane 2221 formed be provided with and is slidably matched, and then guarantee actuator 222 smoothly can slide in the sliding chamber in tool body 221.Additionally, deviate from the side on the second inclined-plane 2224 and the 3rd inclined-plane 2221 at actuator 222 to form dovetail configuration, tool body 221 is formed the dovetail groove being slidably matched with the dovetail configuration on actuator 222 can carry out spacing to actuator 222 so that the guide rail hook 2242 on drift 224 being slidably matched by the first inclined-plane 2241 and the 3rd inclined-plane 2221 with actuator 222 and the slide rail on actuator 222 are matched and be combined into one sufficiently large pull-back forces of hole offer that the punching end of drift 224 leaves on oil pipe.
Specifically, as shown in Figure 1, Figure 2 and shown in Fig. 3, the union joint 23 that the head end of tool body 221 has through hole with the end of cylinder body 211 by centre is connected, and piston rod 212 runs through through hole.In each joint card punch of at least one joint card punch, the head end of union joint 23 fastening means body 221 and the end of cylinder body 211, and in cylinder body 211, union joint 23 and tool body 221, form the passage that piston rod 212 moves to the direction of card punch end along cylinder body 211 length direction.
Specifically, the first keeper 227 includes at least one pin, and/or, the second keeper 226 includes at least one pin.
First keeper 227 can select according to practical situation, general first keeper 227 can be three pins, first keeper 227 can select the pin that three diameters are less, in contrast, guide hole wall and be provided with the hole, three first location that the pin less with three diameters is corresponding, the guide rail of drift 224 hooks 2242 and is provided with the hole, three second location that the pin less with three diameters is corresponding, when pin is not cut off, each pin runs through corresponding first hole, location and the second hole, location so that drift 224 is fixed with tool body 221 is connected.
Second keeper 226 can select according to practical situation, general second keeper 226 can be three pins, second keeper 226 can select three pins being relatively large in diameter, in contrast, tool body 221 is provided with three corresponding with the pin that three are relatively large in diameter the 3rd on two sidewalls of axial groove and positions hole, block 225 be provided with three pin being relatively large in diameter through holes one to one, when pin is not cut off, each pin runs through the 3rd corresponding hole, location and through hole so that block 225 and tool body 221 are fixed and connected.
Specifically, oil connection 1 is provided with external screw thread, the cylinder body 211 of the card punch of the head end of perforation unit 2 is provided with the female thread of the external screw thread cooperation with oil connection 1 and is connected, cylinder body 211 threaded engagement of the card punch of the head end of oil connection 1 and perforation unit 2, and is provided with static sealing ring at threaded engagement.
Oil connection 1 one end is connected with oil pipe, and the other end is connected with the cylinder body 211 of the card punch of the head end of perforation unit 2, and to be connected with oil pipe by perforation unit 2, when pressurizeing oil pipe, hydraulic oil enters in card punch, so that card punch is started working.Static sealing ring is for guaranteeing the sealing between the stationary face contacted between the cylinder body 211 of card punch and oil connection 1, prevent the leakage of hydraulic oil in oil pipe card punch work process, ensure in the work process of oil pipe perforating device stablizing of oil pressure in card punch simultaneously, the selection of static sealing ring can be determined according to practical situation, typically can select O RunddichtringO, it is also possible to for other any sealing rings that disclosure satisfy that static seal requirement.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, in a kind of preferred implementation, perforation unit 2 includes at least two joint card punch, wherein:
In at least two joint card punch, in each joint card punch in addition to minor details card punch, piston rod 212 is provided with the first oil-through hole 2121 running through its length direction, actuator 222 is provided with head end and the second oil-through hole 2225 of the first oil-through hole 2121 end connection, the end of tool body 221 is provided with the oil-out that the oil-in arranged with oil cylinder head end in later section card punch connects, if and only if time actuator 222 is in final station, is connected by snap joint 24 between the second oil-through hole 2225 and oil-out.
nullAfter the destination locations of Oil/gas Well transferred to by oil pipe perforating device，Pressurize in the oil pipe being connected with oil connection 1，Now，Actuator 222 is positioned at initial station，Oil circuit between first joint card punch and second section card punch does not connects，Hydraulic oil in cylinder body 211 provides an active force saving card punch end towards head to piston rod 212，And then make to drift 224, the actuator 222 of connection fixed thereto is produced active force，When actuator 222 is more than when cutting off force value of the first keeper 227 to the active force of drift 224，First keeper 227 is cut off，The end direction that actuator 222 saves card punch along cylinder body 211 length direction to head under the promotion of piston rod 212 quickly moves，And then make drift 224 quickly move to the direction of oil pipe to be punctured along being perpendicular to cylinder body 211 length direction under the driving of actuator 222，So that the punching end of drift 224 goes out tool body 221 with to oil pipe punching，When actuator 222 moves to intermediate stations to the end direction of tool body 221，Block 225 is spacing to actuator 222 by locating part 223，The oil pressure of the hydraulic oil in cylinder body 211 continues to increase，When actuator 222 is more than when cutting off force value of the second keeper 226 to the force value of block 225，Second keeper 226 is cut off，Actuator 222 drives block 225 to move to final station to tool body 221 end，Drift 224 is pulled in tool body 221，The work of first joint card punch completes，And connected by snap joint 24 between the second oil-through hole 2225 and oil-out，Enable hydraulic oil enter next joint card punch in oil cylinder cylinder body 211 in，Next joint card punch work starts，Override interrupt process，Until the drill process of each joint card punch completes.
Specifically, as shown in Figure 1, Figure 2 and shown in Fig. 3, at each joint card punch of at least two joint card punch, the head end of actuator 222 forms rectangular structure, and the rectangular structure that head end is formed is provided with the screwed hole that the end thread with piston rod 212 is connected；And in each joint card punch in addition to minor details card punch, the end of the screwed hole that the rectangular structure that actuator 222 head end is formed has and the head end connection of the second oil-through hole 2225, the end of actuator 222 forms rectangular structure, and the female of snap joint 24 is installed on the screwed hole that the rectangular structure of end formation is provided with.The head end of actuator 222 can be rectangular structure, it is also possible to for disclosure satisfy that this function and other any shapes making actuator 222 can be slidably mounted in tool body 221 along the length direction of cylinder body 211.
Snap joint 24 can be not required to manual operation, is capable of the connection of oil circuit under the promotion of oil pressure, and action is simple, time-consuming and manpower.It addition, tear end oil circuit open in snap joint 24, when i.e. actuator 222 does not arrives final station, the check valve of snap joint 24 can be with closing oil path, and hydraulic oil will not flow out, thus avoids the loss of hydraulic oil and the loss of oil pressure.And the screwed hole matched by the screw thread in the female with snap joint 24 that is provided with in the rectangular structure of actuator 222 end, can quickly be driven the connection between part 222 and snap joint 24 when mounted, simple and convenient, time saving and energy saving.
nullEach joint card punch at least one joint card punch、And in each joint card punch in addition to minor details card punch，Owing to the head end of cylinder body 211 is provided with oil-in，Piston rod 212 is installed in cylinder body 211，And piston rod 212 is provided with the first oil-through hole 2121 running through its length direction，The end of the screwed hole that the rectangular structure that actuator 222 head end is formed has and the head end connection of the second oil-through hole 2225，The end of actuator 222 is provided with snap joint 24，Actuator 222 is installed on the sliding intracavity of tool body 221，The end of tool body 221 is provided with the oil-out that the oil-in arranged with oil cylinder head end in next joint card punch connects，When actuator 222 is in final station，Connected by snap joint 24 between second oil-through hole 2225 and oil-out，The oil circuit running through card punch is formed in this joint card punch、And the oil communication between this joint card punch and next joint card punch，Hydraulic oil enters into next joint card punch from this joint card punch.
nullMoved before final station at actuator 222，Do not connect between second oil-through hole 2225 and oil-out，Enter the oil circuit of hydraulic oil of this joint card punch at the female of snap joint 24，Oil circuit between this joint card punch with next joint card punch does not connects，Now，This joint card punch is constantly entered into along with hydraulic oil，Hydraulic oil in cylinder body 211 provides an active force towards this joint card punch end to piston rod 212，Actuator 222 is driven to leave initial station，The drill process of this joint card punch starts，Move after final station at actuator 222，The drill process of this joint card punch terminates，Connected by snap joint 24 between second oil-through hole 2225 and oil-out，Oil communication between this joint card punch and next joint card punch，Hydraulic oil enters into next joint card punch from this joint card punch，Actuator 222 at next joint card punch moved before final station，Enter the oil circuit of hydraulic oil of next joint card punch at snap joint 24，Along with hydraulic oil constantly enters，Hydraulic oil in cylinder body 211 provides an active force towards next joint card punch end to piston rod 212，Actuator 222 is driven to leave initial station，The drill process of next joint card punch starts，It is repeated in，Until completing except the punching of minor details card punch.
nullFor minor details card punch，Save card punch upper one to move to final station and make，Connected by snap joint 24 between the second oil-through hole 2225 and its oil-out of a upper joint card punch，And upper one joint card punch oil-out connect with the oil-in of minor details card punch，Hydraulic oil enters in the cylinder body 211 of minor details card punch from a upper joint，And it is not provided with oil-through hole on piston rod 212 now and actuator 222，And piston rod 212 is installed in cylinder body 211，Actuator 222 is installed in the sliding chamber of the tool body 221 being connected with cylinder body 211，So，Hydraulic oil at the oil circuit of minor details card punch at piston rod 212，Continuous entrance so that with hydraulic oil，Hydraulic oil in cylinder body 211 provides an active force towards minor details card punch end to piston rod 212，Actuator 222 is driven to leave initial station，The drill process of minor details card punch starts，When actuator 222 moves to final station，The drill process of minor details card punch completes.
In each joint card punch of at least one joint card punch and each joint card punch in addition to minor details card punch, the end of actuator 222 can be rectangular structure, it is also possible to other any shapes that end thread hole can be made to match with the female of snap joint 24 for other and make actuator 222 can be slidably mounted in tool body 221 along the length direction of cylinder body 211.And the end of actuator 222 is connected so that when actuator 222 is in final station, being connected by snap joint 24 between the second oil-through hole 2225 and oil-out with snap joint 24, so that the oil communication between two joint card punch.And for minor details card punch, as final section card punch, do not have next to save card punch, and then need not arrange again the rectangular structure of end.
Specifically, as shown in Fig. 1 and Fig. 4, saving card punch at least two, the tool body 221 of previous joint card punch is connected by joint union joint 25 with the cylinder body 211 of next joint card punch；And in each joint card punch in addition to minor details card punch, joint union joint 25 is provided with the 3rd oil-through hole 251, the oil-in that the end of the 3rd oil-through hole 251 is arranged with oil cylinder head end in later section card punch connects；The head end of joint union joint 25 is provided with the screwed hole connected with the 3rd oil-through hole 251, and the male of snap joint 24 is threadeded with the screwed hole of joint union joint 25；And save between card punch every two, it is provided with static sealing ring between the cylinder body 211 of joint union joint 25 and next joint card punch.
Card punch is saved at least one, joint union joint 25 connects tool body 221 and the cylinder body 211 of next joint card punch of previous joint card punch, the joint number of card punch in oil pipe perforating device can be increased rapidly by joint union joint 25, can be according to the needs of reality punching, determine required joint number, then it is assembled into and can complete the oil pipe perforating device required that punches accordingly, simultaneously, joint union joint 25 is used to also help transport and carry, oil pipe perforating device is transported as after joint partition, use after assembling again after arriving the destination of punch operation, therefore, use joint union joint 25 convenient and swift can complete transport and punching demand.
nullCard punch is saved at least one，And in each joint card punch in addition to minor details card punch，Owing to the male of snap joint 24 is provided with between the screwed hole connected with the 3rd oil-through hole 251 threaded with the head end of joint union joint 25，Joint union joint 25 is provided with the 3rd oil-through hole 251，And the 3rd oil-through hole 251 end with in later section card punch oil cylinder head end arrange oil-in connect，Therefore，In the work process of each joint card punch，When actuator 222 moves to final station，The male of the female and the snap joint 24 in the head end screwed hole being arranged on joint union joint 25 that are installed on the snap joint 24 in the screwed hole that actuator 222 end is arranged is connected，And the female of snap joint 24 is connected with the second oil-through hole 2225，The male of snap joint 24 is connected with the 3rd oil-through hole 251，And the joint union joint 25 with the 3rd oil-through hole 251 connects the tool body 221 of previous joint card punch and the cylinder body 211 of next joint card punch，Therefore，When actuator 222 moves to final station，Hydraulic circuit between previous joint card punch with next joint card punch connects，Hydraulic oil flow is in the cylinder body 211 of next joint card punch，Make after upper one drill process saving card punch completes，Next joint card punch can continue to punch.
And by arranging, at the head end of joint union joint 25, the screwed hole matched with the screw thread in the male of snap joint 24, can quickly carry out saving the connection between union joint 25 and snap joint 24 when mounted, simple and convenient, time saving and energy saving.
Static sealing ring is for guaranteeing the sealing between the stationary face contacted between the cylinder body 211 of joint union joint 25 and next joint card punch, prevent from occurring between the most adjacent card punch the leakage of hydraulic oil in the work process of oil pipe perforating device, ensure in the work process of oil pipe perforating device stablizing of oil pressure in each joint card punch simultaneously, the selection of static sealing ring can be determined according to practical situation, typically can select O RunddichtringO, it is also possible to for other any sealing rings that disclosure satisfy that static seal requirement.
Specifically, in each joint card punch of at least one joint card punch, block 225 forms the groove extended along cylinder body 211 length direction, and actuator 222 runs through groove；And in each joint card punch in addition to minor details card punch, the end surface of locating part 223 is formed with projection, projection stretches in groove and to deviate from the surface of actuator 222 side relative with the bottom surface of groove.
nullEach joint card punch of at least one joint card punch，And in each joint card punch in addition to minor details card punch，When actuator 222 under the drive of the piston rod 212 of connection fixed thereto along the length direction of cylinder body 211 towards the end of card punch during initial station moves to intermediate stations，Actuator 222 drives locating part 223 and drift 224 to move along being perpendicular to cylinder body 211 length direction to the direction towards oil pipe to be punctured，And projection to deviate from the surface of the actuator 222 side moving direction that also ensure that locating part 223 and drift 224 the most relative with the bottom surface of groove be along being perpendicular to cylinder body 211 length direction to the direction towards oil pipe to be punctured all the time，When actuator 222 moves to intermediate stations，Projection and groove are contacted over and offset being perpendicular to cylinder body 211 length direction，When actuator 222 moves to final station to the end of card punch along cylinder body 211 length direction from intermediate stations，Deviate from that the surface of actuator 222 side is the most relative with the bottom surface of groove due to projection and projection and groove are contacted over and offset being perpendicular to cylinder body 211 length direction，Block 225 is moved along cylinder body 211 length direction to the end of card punch together along with actuator 222.
Specifically, for ensureing that block 225 can smoothly move on the basis of above-mentioned block 225 limit function, the outer surface of block 225 is formed with the slide rail extended along cylinder body 211 length direction, and tool body 221 is provided with the chute extended along cylinder body 211 length direction, and slide rail coordinates with slide.
In the moving process of block 225, the chute along the extension of cylinder body 211 length direction that the slide rail along the extension of cylinder body 211 length direction that the outer surface of block 225 is formed is provided with tool body 221 matches, the moving direction making block 225 is the length direction along cylinder body 211 all the time, it is ensured that block 225 can smoothly move.
Obviously, those skilled in the art can carry out various change and modification without departing from the spirit and scope of the present invention to the embodiment of the present invention.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (13)
1. an oil pipe perforating device, it is characterized in that, including oil connection and perforation unit, described oil connection is installed on the head end of described perforation unit, described perforation unit includes at least one joint card punch, and the described card punch of each joint includes that piston cylinder and perforating mechanism, described piston cylinder include cylinder body and piston rod, described perforating mechanism includes tool body, drift, actuator, locating part, block, the first keeper, the second keeper, wherein:
Described piston rod can be slidably mounted in described cylinder body along described cylinder body length direction, and the end of described piston rod is fixing with the head end of described actuator is connected, the head end of described cylinder body is provided with oil-in, and when described card punch operation, the oil-in of described cylinder body head end connects with the oilhole of described oil connection；
The end of the head end of described tool body and described cylinder body is fixing to be connected, and described tool body is provided with for making described drift along being perpendicular to pilot hole that described cylinder body length direction moves and being internally formed the sliding chamber along the extension of described cylinder body length direction；Described drift is installed in described pilot hole by the first keeper；Described actuator can be slidably mounted to described sliding intracavity along described cylinder body length direction and be connected with described punch driver；Described block is installed on described tool body by the second keeper, and the force value of cutting off of the second keeper cuts off force value more than the first keeper, and described tool body is provided with the axial groove for making block slide along described cylinder body length direction；When described actuator is in initial station, it is relatively fixed between described actuator and described drift and described tool body；When described actuator is more than when cutting off force value of described first keeper to the active force of described drift, described first keeper is cut off, described actuator moves to intermediate stations to the end direction of described tool body, the punching end of described drift stretches out described tool body with to oil pipe punching, and described block is spacing to described actuator by locating part；When described actuator is more than when cutting off force value of the second keeper to the force value of described block, described second keeper is cut off, described actuator drives described block to move to final station to described tool body end, and described drift is pulled in described tool body.
Oil pipe perforating device the most according to claim 1, it is characterised in that
Described axial groove connects with described pilot hole, and described block is installed on the head end of described axial groove by the second keeper；
Described drift deviates from the surface of its punching end and forms the first inclined-plane and guide rail hooks, between described first inclined-plane and described cylinder body length direction angled in towards the angle of tool body end direction be acute angle；
Described actuator is provided with the second inclined-plane, 3rd inclined-plane, 4th inclined-plane and step surface, described second inclined-plane is positioned at the side towards tool body end, described 3rd inclined-plane, and between described second inclined-plane and described cylinder body length direction angled in towards the angle in tool body head end direction be acute angle, and the 3rd between inclined-plane and described cylinder body length direction angled in towards the angle of tool body end direction be acute angle, described 4th inclined-plane is parallel with described 3rd inclined-plane, and the side on described 3rd inclined-plane is deviated from towards described actuator, described step surface connects described second inclined-plane and the 3rd inclined-plane, and towards the end of described tool body；
Described locating part can be slidably mounted in described pilot hole along being perpendicular to described cylinder body length direction, and described locating part deviates from the surface parallel with described 3rd inclined-plane, towards tool body end, surface of actuator and offsets towards the surface of tool body head end with described block；
When described actuator is in initial station, described locating part is between described drift and described actuator, and described locating part is parallel with described second inclined-plane towards the one side of actuator and offsets, described locating part is parallel with the first inclined-plane towards the one side on described first inclined-plane and offsets, and the structure face that described guide rail hooks offsets towards the one side of actuator with described locating part；
When described actuator is in intermediate stations, described locating part offsets towards the surface of tool body head end with described step surface, the surface of the actuator side that offsets towards surface and the described block of tool body end towards the surface of tool body head end, deviate from is concordant with described 3rd inclined-plane；
When described actuator to tool body end direction after intermediate stations, the first inclined-plane of described drift be slidably matched with described 3rd inclined-plane and described guide rail hook hook face be slidably matched with described 4th inclined-plane.
Oil pipe perforating device the most according to claim 2, it is characterised in that the position forming described 3rd inclined-plane in described actuator is formed with slide rail, and it is described 4th inclined-plane that described slide rail deviates from the one side on described 3rd inclined-plane.
Oil pipe perforating device the most according to claim 2, it is characterised in that threaded between the head end of described actuator and the end of described piston rod, and it is provided with static sealing ring between the head end of described piston rod and described actuator.
Oil pipe perforating device the most according to claim 2, it is characterised in that actuator deviates from the side on described second inclined-plane and the 3rd inclined-plane and is formed with dovetail configuration, and described tool body is provided with the dovetail groove being slidably matched with described dovetail configuration.
Oil pipe perforating device the most according to claim 2, it is characterised in that the union joint that the head end of described tool body has through hole with the end of described cylinder body by centre is connected, and described piston rod runs through described through hole.
Oil pipe perforating device the most according to claim 2, it is characterised in that described first keeper includes at least one pin, and/or, described second keeper includes at least one pin.
Oil pipe perforating device the most according to claim 1, it is characterized in that, described oil connection is provided with external screw thread, the cylinder body of the card punch of described perforation unit head end is provided with the female thread of the external screw thread cooperation with described oil connection and is connected, the cylinder body threaded engagement of the card punch of described oil connection and described perforation unit head end, and at threaded engagement, it is provided with static sealing ring.
Oil pipe perforating device the most according to claim 2, it is characterised in that described perforation unit includes at least two joint card punch, wherein:
In described at least two joint card punch, in each joint card punch in addition to minor details card punch, piston rod is provided with the first oil-through hole running through its length direction, actuator is provided with head end and the second oil-through hole of the first oil-through hole end connection, the end of described tool body is provided with the oil-out that the oil-in arranged with oil cylinder head end in later section card punch connects, if and only if time described actuator is in final station, and described second oil-through hole is connected by snap joint between described oil-out.
Oil pipe perforating device the most according to claim 9, it is characterized in that, at the described at least two described card punch of each joint saving card punch, the head end of actuator forms rectangular structure, and the rectangular structure that head end is formed is provided with the screwed hole that the end thread with described piston rod is connected；And in each joint card punch in addition to minor details card punch, the end of the screwed hole that the rectangular structure that actuator head end is formed has and the head end connection of the second oil-through hole, the end of actuator forms rectangular structure, and the female of snap joint is installed on the screwed hole that the rectangular structure of end formation is provided with.
11. oil pipe perforating devices according to claim 9, it is characterised in that save card punch described at least two, the tool body of previous joint card punch is connected by joint union joint with the cylinder body of next joint card punch；And in each joint card punch in addition to minor details card punch, described joint union joint is provided with the 3rd oil-through hole, the oil-in that the end of described 3rd oil-through hole is arranged with oil cylinder head end in later section card punch connects；The head end of described joint union joint is provided with the screwed hole connected with the 3rd oil-through hole, and the male of described snap joint is threadeded with the screwed hole of described joint union joint；And save between card punch every two, it is provided with static sealing ring between the cylinder body of described joint union joint and next joint card punch.
12. oil pipe perforating devices according to claim 9, it is characterised in that in the described at least one described card punch of each joint saving card punch, described block forms the groove extended along cylinder body length direction, and described actuator runs through described groove；And in each joint card punch in addition to minor details card punch, the end surface of described locating part is formed with projection, described projection stretches in described groove and to deviate from the surface of described actuator side relative with the bottom surface of described groove.
13. oil pipe perforating devices according to claim 12, it is characterized in that, the outer surface of described block is formed with the slide rail extended along described cylinder body length direction, and described tool body is provided with the chute extended along cylinder body length direction, and described slide rail coordinates with described slide.
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| CN201610113614.XA CN105817524B (en) | 2016-02-29 | 2016-02-29 | A kind of oil pipe perforating device |
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| CN201610113614.XA CN105817524B (en) | 2016-02-29 | 2016-02-29 | A kind of oil pipe perforating device |
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| CN105817524B (en) | 2017-10-31 |
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