CN115807640A - Underground cable transmission electric cutting actuating mechanism, system and process - Google Patents
Underground cable transmission electric cutting actuating mechanism, system and process Download PDFInfo
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- CN115807640A CN115807640A CN202111070814.9A CN202111070814A CN115807640A CN 115807640 A CN115807640 A CN 115807640A CN 202111070814 A CN202111070814 A CN 202111070814A CN 115807640 A CN115807640 A CN 115807640A
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Abstract
The invention discloses an underground cable transmission electric cutting actuating mechanism, a system and a process, which comprises the following steps: the anchoring short section, the driving short section and the cutting short section are sequentially connected end to end; the cutting short section comprises a cutter head, a cutter seat barrel, a cutter rest and a blade, one end, far away from the cutter seat barrel, of the cutter head is fixedly connected with the driving short section, a first driving component is arranged inside the cutter head, the cutter rest drives the blade to be in the rectangular hole, and the blade stretches out of the cutter seat barrel or retracts into the cutter seat barrel along the radial direction of the cutter seat barrel. According to the underground cable transmission electric cutting executing mechanism, the system and the process, the cutting device is anchored on the inner wall of the oil pipe through the anchoring short section, so that the cutting device is more stable in the oil pipe, and the phenomenon of shaking is avoided; the adjusting motor drives the blade to move along the radial direction of the cutter holder barrel through the adjusting part, the outermost end of the adjusting blade is attached to the inner wall of the oil pipe, the short section of the driving tool bit is driven to rotate by the driving of the short section of the adjusting blade, the blade cuts the oil pipe, and the cutting effect is better.
Description
Technical Field
The invention relates to the technical field of oil extraction and well repair, in particular to an underground cable transmission electric cutting actuating mechanism, system and process.
Background
In the current oil field development, the existing cutting modes mainly comprise chemical cutting, explosive cutting, hydraulic cutting, mechanical cutting and the like, wherein the chemical cutting and the explosive cutting adopt a cable transmission mode, cutting is carried out by igniting preset gunpowder in a tool string, the cutting tool string is short and easy to operate, but the cutting section is uneven and needs professional qualification, so that the method has great limitation; while hydraulic cutting and mechanical cutting have no limiting factor in the aspect of safe environment, the conventional pipe column is adopted for running in and cutting, the cutting section is uneven, and the efficiency is low.
Disclosure of Invention
The application provides an electric cutting actuating mechanism, system and technology of cable transmission in pit, has solved the not good technical problem of oil pipe cutting effect among the prior art in oil field development.
The application provides an electronic cutting actuating mechanism, cutting device includes: the device comprises an anchoring short section, a driving short section and a cutting short section which are sequentially connected end to end, wherein the anchoring short section is fixedly connected with the driving short section, and the driving short section is rotationally connected with the cutting short section;
the cutting short section comprises a cutter head, a cutter seat barrel, a cutter rest and a cutter blade, the cutter head is fixedly connected with the cutter seat barrel, one end, far away from the cutter seat barrel, of the cutter head is rotatably connected with the driving short section, a first driving part is arranged inside the cutter head, the cutter blade is arranged on the cutter rest, a long hole is formed in the cutter seat barrel corresponding to the cutter blade, and the cutter blade is movably inserted into the long hole; the tool rest cylinder is internally provided with an adjusting part, the power input end of the adjusting part is connected with the output end of the adjusting motor, and the power output end of the adjusting part is connected with the tool rest, so that the tool rest is driven by the adjusting part to drive the blade to extend out of the tool rest cylinder or retract into the tool rest cylinder along the radial direction of the tool rest cylinder in the elongated hole.
Preferably, the first driving component is an adjusting motor, the adjusting component includes a lead screw, a first bevel gear and a second bevel gear, the lead screw is rotatably disposed in the tool holder barrel, the lead screw is radially disposed along the tool holder barrel, the tool holder is sleeved on the lead screw, and the tool holder is in threaded connection with the lead screw; the first bevel gear is fixedly arranged on the screw rod, an adjusting rod is fixedly arranged on a rotating shaft of the adjusting motor, and the second bevel gear is fixedly arranged on the adjusting rod and meshed with the first bevel gear.
Preferably, the anchoring sub comprises a first anchoring mechanism and a pushing cylinder, and the first anchoring mechanism is arranged at one end of the pushing cylinder far away from the driving sub.
Preferably, the first anchoring mechanism comprises a first anchoring cylinder, a first anchoring rod, a second anchoring rod and a first anchoring block, the first anchoring cylinder is fixedly connected with one end of the pushing cylinder far away from the driving short section, the first anchoring rods are multiple and uniformly arranged around the axis of the first anchoring cylinder at intervals, the first anchoring rod is parallel to the axis of the first anchoring cylinder, and the first anchoring rod is fixedly arranged at one end of the first anchoring cylinder far away from the pushing cylinder; a second anchoring rod is arranged in the first anchoring cylinder corresponding to each first anchoring rod, the axes of the corresponding first anchoring rods and the second anchoring rods are the same, a first pusher is fixedly arranged at one end, close to the pushing cylinder, of the first anchoring cylinder, and one end, far away from the first anchoring rods, of the second anchoring rods is fixedly connected with the telescopic end of the first pusher; every group is corresponding all be provided with first anchor piece between first anchor pole and the second anchor pole, every group first anchor pole and second anchor pole and corresponding all hinge through first connecting rod between the first anchor piece, first opening has all been seted up to a first anchor section of thick bamboo corresponding every first anchor piece department, first anchor piece sets up in the first opening.
Preferably, the anchoring short section further comprises a second anchoring mechanism, the second anchoring short section is arranged at one end, close to the driving short section, of the pushing cylinder, the second anchoring mechanism comprises a plurality of second anchoring cylinders, a plurality of third anchoring rods, a plurality of fourth anchoring rods and anchoring blocks, the second anchoring cylinders are fixedly connected with one ends, close to the driving short section, of the pushing cylinder, the plurality of third anchoring rods are uniformly arranged at intervals around the axis of the second anchoring cylinders, the third anchoring rods are parallel to the axis of the second anchoring cylinders, and the third anchoring rods are fixedly arranged at one ends, far away from the pushing cylinder, in the second anchoring cylinders; a fourth anchoring rod is arranged in the second anchoring cylinder corresponding to each third anchoring rod, the axes of the corresponding third anchoring rods are the same as the axes of the corresponding fourth anchoring rods, a second pusher is fixedly arranged at one end, close to the pushing cylinder, of the second anchoring cylinder, and one end, far away from the third anchoring rods, of the fourth anchoring rod is fixedly connected with the telescopic end of the second pusher; every corresponding second anchor piece all is provided with between every group the third anchor piece and the fourth anchor piece, every group third anchor piece and fourth anchor piece and corresponding all articulated through the second connecting rod between the second anchor piece, a second anchor section of thick bamboo corresponds every second anchor piece department has all seted up the second opening, the second anchor piece sets up in the second opening.
The underground cable transmission electric cutting system comprises ground equipment and underground equipment which are connected through a cable, wherein the ground equipment comprises a server, and the underground equipment comprises a detection positioning short section, a control short section and an electric cutting executing mechanism recorded by the technical scheme, which are sequentially connected end to end.
Preferably, a centralizer is arranged between the detection positioning short section and the control short section, a hydraulic balance short section is arranged between the anchoring short section and the control short section, one end, far away from the centralizer, of the detection positioning short section is connected with a rotary tension short section, and the hydraulic balance short section, the centralizer, the detection positioning short section and the rotary tension short section are electrically connected with the control short section.
Preferably, the rotary tension short section is far away from one end of the detection positioning short section and is provided with a cable head, and the server is connected with the cable head through a cable.
An underground cable transmission electric cutting process is implemented based on the underground cable transmission electric cutting system recorded in the technical scheme; the underground cable transmission electric cutting process comprises the following steps: the cutting device is placed in an oil pipe, a server is started, the server sends a signal to a control short section, the control short section controls to start a detection positioning short section, the cutting device is slowly placed, the condition of the oil pipe at the current position is detected through the detection positioning short section, and after the position to be cut is positioned, the cutting device is lifted upwards, so that the cutting short section corresponds to the position to be cut; the server sends an anchoring command to the control short section, the control short section controls the anchoring short section to anchor the cutting device on the inner wall of the oil pipe, then the server sends a cutting command to the control short section, the control short section controls an adjusting motor in a cutter head of the cutting short section to rotate so as to enable a blade to extend out, and meanwhile the control short section controls the driving short section to rotate so as to enable the blade to cut the oil pipe; and judging the cutting state of the cutting device through the change of the detection current during cutting, controlling a short section to control the rotation of the adjusting motor to enable the blade to be retracted after the cutting is finished, and finally lifting the cutting device to finish the cutting operation.
The beneficial effect of this application is as follows:
according to the underground cable transmission electric cutting executing mechanism, the system and the process, the cutting device is anchored on the inner wall of the oil pipe through the anchoring short section, so that the cutting device is more stable in the oil pipe, and the phenomenon of shaking is avoided; the adjusting motor drives the blade through the adjusting part and moves along the radial direction of the cutter holder cylinder, the outermost end of the adjusting blade is attached to the inner wall of the oil pipe, the driving short section driving cutter head rotates, the blade cuts the oil pipe, the traditional chemical cutting and explosive cutting are replaced, the electric driving blade rotates at a high speed, the diameter of the blade is gradually increased, the tangent plane is more uniform, and the cutting effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic structural diagram of the rear half section of a cutting device in the present application;
FIG. 2 is a schematic diagram of a middle section of a cutting device according to the present application;
FIG. 3 is a schematic structural diagram of the front half section of the cutting device in the present application;
FIG. 4 is a schematic cross-sectional structure diagram of a cutting sub in the embodiment of the present application;
FIG. 5 is a schematic longitudinal cross-sectional structure diagram of a cutting sub in the embodiment of the present application;
FIG. 6 is a schematic view of a first anchoring mechanism according to an embodiment of the present application;
FIG. 7 is a schematic view of a second anchoring mechanism according to an embodiment of the present application;
fig. 8 is a schematic view of the cutting device in use according to the present application.
Wherein, 1-a cutting device; 2-a server; 3-reeling; 4-a cable; 5-oil pipe; 10-an anchoring nipple; 11-a first anchoring mechanism; 111-a first anchoring cylinder; 112-a first anchor rod; 113-a second anchor rod; 114-a first anchor block; 115-a first pusher; 116-a first link; 117 — a first opening; 12-an urging barrel; 13-a second anchoring mechanism; 131-a second anchoring cylinder; 132-a third anchor rod; 133-a fourth anchor rod; 134-a second anchor block; 135-a second pusher; 136-a second link; 137-a second opening; 20-driving the short joint; 30-cutting short sections; 31-a cutter head; 311-regulating the motor; 32-a tool holder barrel; 33-a tool holder; 34-a blade; 35-a lead screw; 36-elongated holes; 37-a first bevel gear; 38-adjusting rod; 39-a second bevel gear; 40-hydraulic balance short section; 41-a centralizer; 42-control short section; 43-detecting and positioning short section; 44-rotating tension nipple; 45-cable head.
Detailed Description
The embodiment of the application provides one kind, has solved the technical problem that oil pipe cutting effect is not good among the prior art in the oil field development.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
as shown in fig. 1, 2 and 3, a downhole wireline conveyed electric cutting actuator comprises: the device comprises an anchoring short section 10, a driving short section 20 and a cutting short section 30 which are sequentially connected end to end, wherein the anchoring short section 10 is fixedly connected with the driving short section 20, the driving short section 20 is rotationally connected with the cutting short section 30, and the driving short section 20 is a driving motor in the embodiment;
as shown in fig. 3, 4 and 5, the cutting sub 30 includes a cutter head 31, a cutter holder cylinder 32, a cutter holder 33 and a blade 34, the cutter head 31 is fixedly connected with the cutter holder cylinder 32, one end of the cutter head 31, which is far away from the cutter holder cylinder 32, is rotatably connected with the driving sub 20, an adjusting motor 311 is arranged inside the cutter head 31, the blade 34 is arranged on the cutter holder 33, a long hole 36 is formed in the cutter holder cylinder 32, which corresponds to the blade 34, and the blade 34 is movably inserted into the long hole 36; an adjusting part is arranged in the tool holder cylinder 32, a power input end of the adjusting part is connected with an output end of the adjusting motor 311, and a power output end of the adjusting part is connected with the tool rest 33, so that the tool rest 33 is driven by the adjusting part to drive the blade 34 to extend out of the tool holder cylinder 32 or retract into the tool holder cylinder 32 in the long hole 36 along the radial direction of the tool holder cylinder 32.
In the embodiment, the underground cable transmission electric cutting executing mechanism, the system and the process have the advantages that the cutting device is anchored on the inner wall of the oil pipe through the anchoring short section, so that the cutting device is more stable in the oil pipe, and the phenomenon of shaking is avoided; the adjusting motor drives the blade through the adjusting part and moves along the radial direction of the cutter holder cylinder, the outermost end of the adjusting blade is attached to the inner wall of the oil pipe, the driving short section driving cutter head rotates, the blade cuts the oil pipe, the traditional chemical cutting and explosive cutting are replaced, the electric driving blade rotates at a high speed, the diameter of the blade is gradually increased, the tangent plane is more uniform, and the cutting effect is better.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
In order to solve the technical problem that the diameter of the cutter holder cylinder 32 is increased by driving the screw 35 to rotate by the adjusting motor 311 in the prior art, on the basis of the above embodiment, the present embodiment provides an electric cutting executing mechanism for downhole cable transmission, the adjusting member includes a screw, a first bevel gear and a second bevel gear, the screw 35 is rotatably disposed in the cutter holder cylinder 32, the screw 35 is radially disposed along the cutter holder cylinder 32, the cutter holder 33 is sleeved on the screw 35, the cutter holder 33 is in threaded connection with the screw 35, the blade 34 is disposed on the cutter holder 33, the adjusting motor 311 is connected with the screw 35, and the adjusting motor 311 drives the screw 35 to rotate; a long hole 36 is formed in the cutter holder cylinder 32 corresponding to the blade 34, a first bevel gear 37 is fixedly arranged on a lead screw 35 in the blade 34 inserted into the long hole 36, an adjusting rod 38 is fixedly arranged on a rotating shaft of an adjusting motor 311, a second bevel gear 39 is fixedly arranged at one end of the adjusting rod 38 far away from the adjusting motor 311, and the first bevel gear 37 is meshed with the second bevel gear 39; the elongated hole 36 is provided along the circumferential direction of the holder cylinder 32, and the end surface of the blade 34 is parallel to the end surface of the holder cylinder 32, so that the blade 34 can always rotate circumferentially around the holder cylinder 32.
In the embodiment, the cutting device is anchored on the inner wall of the oil pipe 5 through the anchoring short section 10, so that the cutting device is more stable in the oil pipe 5, and the shaking is avoided; the adjusting motor 311 drives the screw 35 to rotate, because the blade 34 is arranged in the strip hole 36, the tool rest 33 moves along the axial direction of the screw 35, thereby the adjusting blade 34 moves up and down along the axial direction of the screw 35 in the strip hole 36, the outermost end of the blade 34 is attached to the inner wall of the oil pipe 5, the driving short section 20 drives the tool bit 31 to rotate, the blade 34 cuts the oil pipe 5, the cutting effect is better, the adjusting motor 311 drives the adjusting rod 38 to rotate, the first bevel gear 37 and the second bevel gear 39 are driven to rotate, finally the horizontally arranged adjusting motor 311 drives the vertically arranged screw 35 to rotate, the diameter of the tool apron cylinder 32 is the same as the length of the screw 35, and the overlarge diameter size of the tool apron cylinder 32 is avoided.
As shown in fig. 3 and 6, in order to solve the technical problem of unstable fixation of the cutting device in the prior art, on the basis of the above embodiments, the present embodiment provides an electric cutting device for downhole cable transmission, an anchoring sub 10 includes a first anchoring mechanism 11 and a pushing cylinder 12, the first anchoring mechanism 11 is disposed at one end of the pushing cylinder 12 far from the driving sub 20; the first anchoring mechanism 11 comprises a first anchoring cylinder 111, a first anchoring rod 112, a second anchoring rod 113 and a first anchoring block 114, wherein the first anchoring cylinder 111 is fixedly connected with one end of the pushing cylinder 12 far away from the driving nipple 20, the first anchoring rods 112 are multiple and uniformly arranged at intervals around the axis of the first anchoring cylinder 111, the first anchoring rods 112 are parallel to the axis of the first anchoring cylinder 111, and the first anchoring rods 112 are fixedly arranged at one end of the first anchoring cylinder 111 far away from the pushing cylinder 12; a second anchoring rod 113 is arranged in the first anchoring cylinder 111 at a position corresponding to each first anchoring rod 112, the axes of the corresponding first anchoring rod 112 and the second anchoring rod 113 are the same, a first pusher 115 is fixedly arranged at one end of the first anchoring cylinder 111 close to the pushing cylinder 12, and one end of the second anchoring rod 113 far away from the first anchoring rod 112 is fixedly connected with the telescopic end of the first pusher 115; a first anchoring block 114 is arranged between each group of corresponding first anchoring rods 112 and second anchoring rods 113, each group of first anchoring rods 112 and second anchoring rods 113 is hinged with the corresponding first anchoring block 114 through a first connecting rod 116, a first opening 117 is formed at the position, corresponding to each first anchoring block 114, of the first anchoring cylinder 111, and the first anchoring block 114 is arranged in the first opening 117;
as shown in fig. 3 and 7, the anchoring nipple 10 further includes a second anchoring mechanism 13, the second anchoring nipple 10 is disposed at one end of the pushing cylinder 12 close to the driving nipple 20, the second anchoring mechanism 13 includes a second anchoring cylinder 131, a plurality of third anchoring rods 132, a fourth anchoring rod 133 and a second anchoring block 134, the second anchoring cylinder 131 is fixedly connected with one end of the pushing cylinder 12 close to the driving nipple 20, the third anchoring rods 132 are uniformly arranged around the axis of the second anchoring cylinder 131 at intervals, the third anchoring rods 132 are parallel to the axis of the second anchoring cylinder 131, and the third anchoring rods 132 are fixedly disposed at one end of the second anchoring cylinder 131 far from the pushing cylinder 12; a fourth anchor rod 133 is arranged in the second anchor cylinder 131 at a position corresponding to each third anchor rod 132, the axes of the corresponding third anchor rods 132 and fourth anchor rods 133 are the same, a second pusher 135 is fixedly arranged at one end of the second anchor cylinder 131 close to the pushing cylinder 12, and one end of the fourth anchor rod 133 far away from the third anchor rod 132 is fixedly connected with the telescopic end of the second pusher 135; a second anchoring block 134 is arranged between each group of corresponding third anchoring rods 132 and fourth anchoring rods 133, each group of third anchoring rods 132 and fourth anchoring rods 133 is hinged with the corresponding second anchoring block 134 through a second connecting rod 136, a second opening 137 is formed in the position, corresponding to each second anchoring block 134, of the second anchoring cylinder 131, and the second anchoring block 134 is arranged in the second opening 137; the first pusher 115 and the second pusher 135 are both electric pushers in this embodiment.
In the above embodiment, the first pusher 115 pushes the second anchor rod 113 to move horizontally, the distance between the first anchor rod 112 and the second anchor rod 113 decreases gradually, so that the first anchor rod 112 and the second anchor rod 113 push the first connecting rod 116 to turn over towards the outside of the first anchor cylinder 111, and further push the first anchor block 114 to extend out of the first opening 117, and finally the first anchor block 114 is pressed against the inner wall of the oil pipe 5; the second pusher 135 pushes the fourth anchor rod 133 to move horizontally, the distance between the third anchor rod 132 and the fourth anchor rod 133 is gradually reduced, the third anchor rod 132 and the fourth anchor rod 133 push the second connecting rod 136 to turn over towards the outside of the second anchor cylinder 131, and further the second anchor block 134 is pushed to extend out of the second opening 137, finally the second anchor block 134 is pressed on the inner wall of the oil pipe 5, the cutting device is anchored through the first anchor mechanism 11 and the second anchor mechanism 13, the cutting device is fixed at two positions along the axial direction of the cutting device, and the fixing effect of the cutting device is better.
As shown in fig. 1, 2 and 3, in order to solve the technical problem of inaccurate positioning of a cutting device in the prior art, on the basis of the above embodiment, the embodiment provides a downhole cable transmission electric cutting system, which includes an above-ground device and a downhole device connected by a cable 4, wherein the above-ground device includes a server 2, and the downhole device includes a detection positioning short section 43, a control short section 42 and an electric cutting execution mechanism recorded in the above technical scheme, which are sequentially connected end to end.
A centralizer 41 is arranged between the detection positioning short section 43 and the control short section 42, a hydraulic balance short section 40 is arranged between the anchoring short section 10 and the control short section 42, one end, far away from the centralizer, of the detection positioning short section is connected with a rotary tension short section, and the hydraulic balance short section, the centralizer, the detection positioning short section and the rotary tension short section are all electrically connected with the control short section.
A cable head 45 is arranged at one end of the rotary tension short section, which is far away from the detection positioning short section, the server is connected with the cable head through a cable, the cutting executing mechanism is connected with a cable 4 through the cable head 45, a cable 4 reel 3 is arranged on the ground, the cable 4 with enough length is provided, the cable 4 is released, and the thrust of the cable 4 to the cutting device 1 is matched through the self gravity of the cutting device; rotatory tension nipple joint 44, hydraulic balance nipple joint 40, centralizer 41 all belong to prior art, mature application, and specific structure here is no longer repeated.
In the above embodiment, the cable 4 is pulled to drag the cutting device to move up and down, when the cable 4 is dragged, the tension nipple 44 is rotated to monitor the tension of the cable 4 in real time, and meanwhile, the tension nipple 44 is rotated to prevent the cable 4 from being knotted in a rotating manner; the internal state of the oil pipe 5 is detected through the detection positioning short section 43, when the internal state of the oil pipe 5 is detected to be not good, for example, a defect or a convex point or a scar is formed in the oil pipe 5, the detection positioning short section 43 transmits a detection position to the server 2, the server 2 sends a signal to the control short section 42, and the anchoring short section 10 is controlled to fix the cutting device by pulling the cable 4, so that the cutting device is positioned more accurately; the pressure of balanced cutting device and well fluid through hydraulic balance nipple joint 40 makes the cutting device atress more balanced, receives external force during the cutting and disturbs and diminishes, makes cutting device's axis keep with the axis coincidence of oil pipe 5 through centralizer 41, and blade 34 atress is more even during the cutting, and the cutting effect is better.
As shown in fig. 1, 2, 3 and 8, the present embodiment provides a downhole cable transmission electric cutting process using the cutting system described in the above technical solution, which is implemented based on the downhole cable transmission electric cutting system described in the above technical solution; the underground cable transmission electric cutting process comprises the following steps: the cutting device 1 is placed in an oil pipe 5, a server 2 is started, the server 2 sends a signal to a control short section 42, the control short section 42 controls the starting of a detection positioning short section 43, the cutting device is slowly placed, the condition of the oil pipe 5 at the current position is detected through the detection positioning short section 43, the position needing to be cut is detected through the detection positioning short section 43, the position to be cut is positioned through the detection positioning short section 43, the signal is transmitted to the song server 2 through the detection positioning short section 43, the position parameter and the stress state of equipment are displayed on the server 2, the cutting device is lifted upwards, and the cutting short section 30 corresponds to the position to be cut; the server 2 sends an anchoring command to the control nipple 42, the control nipple 42 controls the anchoring nipple 10 to anchor the cutting device on the inner wall of the oil pipe 5, then the server 2 sends a cutting command to the control nipple 42, the control nipple 42 controls the adjusting motor 311 in the cutter head 31 of the cutting nipple 30 to rotate to enable the blade 34 to extend out, and meanwhile, the control nipple 42 controls the driving nipple 20 to rotate to enable the blade 34 to cut the oil pipe 5; the cutting state of the cutting device is judged through the change of the detection current during cutting, after the cutting is completed, the control short section 42 controls the adjusting motor 311 to rotate so that the blade 34 is retracted, and finally the cutting device is lifted to complete the cutting operation, so that the state of the cutting device in the cutting process is more stable, and the cutting effect is better.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An electric cutting actuator, wherein the cutting device comprises: the device comprises an anchoring short section, a driving short section and a cutting short section which are sequentially connected end to end, wherein the anchoring short section is fixedly connected with the driving short section, and the driving short section is rotationally connected with the cutting short section;
the cutting short section comprises a cutter head, a cutter seat barrel, a cutter rest and a cutter blade, the cutter head is fixedly connected with the cutter seat barrel, one end, far away from the cutter seat barrel, of the cutter head is rotatably connected with the driving short section, a first driving part is arranged inside the cutter head, the cutter blade is arranged on the cutter rest, a long hole is formed in the cutter seat barrel corresponding to the cutter blade, and the cutter blade is movably inserted into the long hole; the tool rest cylinder is internally provided with an adjusting part, the power input end of the adjusting part is connected with the output end of the adjusting motor, and the power output end of the adjusting part is connected with the tool rest, so that the tool rest is driven by the adjusting part to drive the blade to extend out of the tool rest cylinder or retract into the tool rest cylinder along the radial direction of the tool rest cylinder in the elongated hole.
2. The electric cutting actuator according to claim 1, wherein the first driving member is an adjusting motor, the adjusting member comprises a lead screw, a first bevel gear and a second bevel gear, the lead screw is rotatably disposed in the tool holder cylinder, the lead screw is disposed along a radial direction of the tool holder cylinder, the tool holder is sleeved on the lead screw, and the tool holder is in threaded connection with the lead screw; the first bevel gear is fixedly arranged on the screw rod, an adjusting rod is fixedly arranged on a rotating shaft of the adjusting motor, and the second bevel gear is fixedly arranged on the adjusting rod and meshed with the first bevel gear.
3. The electric cutting actuator of claim 1, wherein the elongated hole is disposed circumferentially along the cartridge barrel, and the end surface of the blade is parallel to the end surface of the cartridge barrel.
4. The power cutting actuator of claim 1, wherein the anchor sub includes a first anchoring mechanism and a thrust barrel, the first anchoring mechanism being disposed at an end of the thrust barrel distal from the drive sub.
5. The electric cutting actuator of claim 4, wherein the first anchoring mechanism comprises a first anchoring cylinder, a first anchoring rod, a second anchoring rod and a first anchoring block, the first anchoring cylinder is fixedly connected with one end of the pushing cylinder far away from the driving short section, the first anchoring rods are multiple and uniformly arranged around the axis of the first anchoring cylinder at intervals, the first anchoring rods are parallel to the axis of the first anchoring cylinder, and the first anchoring rod is fixedly arranged at one end of the first anchoring cylinder far away from the pushing cylinder; a second anchoring rod is arranged in the first anchoring cylinder corresponding to each first anchoring rod, the axes of the corresponding first anchoring rods and the second anchoring rods are the same, a first pusher is fixedly arranged at one end, close to the pushing cylinder, of the first anchoring cylinder, and one end, far away from the first anchoring rods, of the second anchoring rods is fixedly connected with the telescopic end of the first pusher; every group is corresponding all be provided with first anchor block between first anchor rod and the second anchor rod, every group first anchor rod and second anchor rod and corresponding all articulated through first connecting rod between the first anchor block, first anchor section of thick bamboo corresponds every first anchor block department has all seted up first opening, first anchor block sets up in the first opening.
6. The electric cutting actuator according to claim 4, wherein the anchoring sub further comprises a second anchoring mechanism, the second anchoring sub is arranged at one end of the pushing cylinder close to the driving sub, the second anchoring mechanism comprises a second anchoring cylinder, a plurality of third anchoring rods, a fourth anchoring rod and anchoring blocks, the second anchoring cylinder is fixedly connected with one end of the pushing cylinder close to the driving sub, the third anchoring rods are uniformly arranged around the axis of the second anchoring cylinder at intervals, the third anchoring rods are parallel to the axis of the second anchoring cylinder, and the third anchoring rods are fixedly arranged at one end of the second anchoring cylinder far away from the pushing cylinder; a fourth anchoring rod is arranged in the second anchoring cylinder corresponding to each third anchoring rod, the axes of the corresponding third anchoring rods are the same as the axes of the corresponding fourth anchoring rods, a second pusher is fixedly arranged at one end, close to the pushing cylinder, of the second anchoring cylinder, and one end, far away from the third anchoring rods, of the fourth anchoring rod is fixedly connected with the telescopic end of the second pusher; each group of corresponding third anchor rod and fourth anchor rod is provided with a second anchor block therebetween, each group of third anchor rod and fourth anchor rod is hinged with the corresponding second anchor block therebetween through a second connecting rod, a second opening is formed in a position of the second anchor cylinder corresponding to each second anchor block, and the second anchor block is arranged in the second opening.
7. An underground cable transmission electric cutting system is characterized by comprising an above-ground device and an underground device which are connected through a cable, wherein the above-ground device comprises a server, and the underground device comprises a detection positioning short section, a control short section and an electric cutting executing mechanism according to any one of claims 1 to 6, wherein the detection positioning short section, the control short section and the electric cutting executing mechanism are sequentially connected end to end.
8. The downhole cable transmission electric cutting system according to claim 7, wherein a centralizer is arranged between the detection positioning sub and the control sub, a hydraulic balance sub is arranged between the anchoring sub and the control sub, one end of the detection positioning sub, which is far away from the centralizer, is connected with a rotary tension sub, and the hydraulic balance sub, the centralizer, the detection positioning sub and the rotary tension sub are all electrically connected with the control sub.
9. The downhole cable conveyed electric cutting system of claim 8, wherein the end of the rotary tension sub remote from the probe positioning sub is provided with a cable head, and the server is connected with the cable head through a cable.
10. A downhole cable transmission electric cutting process, which is implemented based on the downhole cable transmission electric cutting system of any one of claims 7-9; the underground cable transmission electric cutting process comprises the following steps: the cutting device is placed in an oil pipe, a server is started, the server sends a signal to a control short section, the control short section controls to start a detection positioning short section, the cutting device is slowly placed, the condition of the oil pipe at the current position is detected through the detection positioning short section, and after the position to be cut is positioned, the cutting device is lifted upwards, so that the cutting short section corresponds to the position to be cut; the server sends an anchoring command to the control short section, the control short section controls the anchoring short section to anchor the cutting device on the inner wall of the oil pipe, then the server sends a cutting command to the control short section, the control short section controls an adjusting motor in a cutter head of the cutting short section to rotate so as to enable a blade to extend out, and meanwhile the control short section controls the driving short section to rotate so as to enable the blade to cut the oil pipe; and judging the cutting state of the cutting device through the change of the detection current during cutting, controlling a short section to control the rotation of the adjusting motor to enable the blade to be retracted after the cutting is finished, and finally lifting the cutting device to finish the cutting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111070814.9A CN115807640A (en) | 2021-09-13 | 2021-09-13 | Underground cable transmission electric cutting actuating mechanism, system and process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111070814.9A CN115807640A (en) | 2021-09-13 | 2021-09-13 | Underground cable transmission electric cutting actuating mechanism, system and process |
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| CN115807640A true CN115807640A (en) | 2023-03-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181265A (en) * | 2023-03-22 | 2023-05-30 | 中国地质大学（北京） | Underground electric control cutting tool and application method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181265A (en) * | 2023-03-22 | 2023-05-30 | 中国地质大学（北京） | Underground electric control cutting tool and application method thereof |
| CN116181265B (en) * | 2023-03-22 | 2023-11-14 | 中国地质大学（北京） | Underground electric control cutting tool and application method thereof |
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