CN117418812A - Positionable mechanical perforating tool - Google Patents
Positionable mechanical perforating tool Download PDFInfo
- Publication number
- CN117418812A CN117418812A CN202311582985.9A CN202311582985A CN117418812A CN 117418812 A CN117418812 A CN 117418812A CN 202311582985 A CN202311582985 A CN 202311582985A CN 117418812 A CN117418812 A CN 117418812A
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- perforation
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- 239000012530 fluid Substances 0.000 claims description 26
- 238000005553 drilling Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 239000002360 explosive Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000004880 explosion Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a tool for perforating in an oil-gas well by using a drill bit without using explosives, and belongs to the technical field of fracturing perforation. The mechanical perforating tool comprises a first motor unit, a guiding rotating unit and a drill perforation unit, wherein the guiding rotating unit has the functions of axial extension and aiming fixation and comprises a sleeve, a central shaft and a groove matched with the sleeve, the groove comprises a sliding slot, a first guiding slot, a second guiding slot and a third guiding slot, the first guiding slot, the second guiding slot and the third guiding slot are connected with the sliding slot, the upper end of the drill perforation unit is connected with the guiding rotating unit through the central shaft, the lower end of the drill perforation unit is connected with a second motor, and the motor is powered through a cable. The invention does not use explosive to open holes in the shaft, and is a safer, more accurate, controllable and environment-friendly mechanical perforation tool.
Description
Technical Field
The invention belongs to the technical field of perforation equipment, and relates to a positionable mechanical perforation device.
Background
Perforation tools play an important role in the oil and gas industry and are required to be used for perforating operations in oil and gas wells, i.e. forming holes in the interior of a wellbore penetrating the wall of the wellbore. The holes can connect the hydrocarbon reservoir with the well bore so that hydrocarbon can flow smoothly into the well bore and be produced. Meanwhile, the perforating tool can also increase productivity, improve recovery ratio, improve oil gas collection effect, adjust operations such as water injection fracturing and the like.
Explosive perforation tools are commonly used to achieve perforation targets, but the explosive perforation method has a series of defects including inaccurate aperture and direction control, hole wall damage and crack propagation, safety risks, environmental impact and the like. The explosion energy propagation is uncertain, and accurate control is difficult to realize; shock waves and high temperature may damage the rock, affecting productivity; the use of explosives presents a safety risk and may cause geological disasters; the gases and particulates released from the explosive perforation may cause environmental pollution. The positioning mechanical perforation adopts an advanced control technology, so that the accurate aperture and direction control can be realized, and the accuracy and controllability of the perforation are improved; the problems of hole wall damage and crack expansion of explosion perforation are avoided, and the stability of stratum is maintained and the oil gas productivity is improved; and the explosive is not required, so that the safety risk is reduced, and the environmental pollution and the possible geological disasters caused by explosion are avoided. Thus, the modern oil and gas industry is increasingly moving toward the use of safer, more accurate, controllable and environmentally friendly mechanical perforation tools.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a positionable mechanical perforating tool which does not use explosives to open holes in a shaft and improves perforation positioning accuracy.
The technical scheme adopted by the invention is as follows: a positionable mechanical perforating device comprises a first motor unit, a guiding rotation unit and a drill perforating unit assembly. The device is powered by a cable. The method is characterized in that: the guiding rotary unit part consists of an oil pump, an oil cylinder and a rotary positioning device, and has the functions of axial extension, guiding and fixing; the perforation part assembly consists of a processing drill bit, a second motor drive and a hydraulic cylinder; the second motor is used for driving the processing drill bit to rotate, and the hydraulic cylinder is used for driving the drill bit to move up and down. The drill bit can be used as a piston of a hydraulic cylinder, the piston is in a retracted state under the action of a spring under the condition of no pressure, and the spring is extruded between the piston and a flange of a cylinder shell. The drill bit moves radially in the hydraulic cylinder housing, and the drill bit is moved in a radial extension direction by driving a hydraulic cylinder in communication with the drill bit housing with drilling fluid. While the gears are engaged with the motor via the shaft to change the rotational speed of the drill bit.
The guiding rotation unit consists of a pin, a sliding sleeve, a central shaft connected with the perforation unit, an oil cylinder, a motor connected with the oil cylinder, a positioning chip and a rotation positioning device. Simultaneously, the rotary positioning device comprises a cylindrical sleeve which is engaged with the pin on the shaft, and six similar guide slots and six perforation positioning points are uniformly distributed around the cylindrical sleeve; the sliding slot is provided with a first guide slot, a second guide slot and a third guide slot, wherein three guide slots are not marked in the schematic diagram; the six guide slots correspond to the six small branches of the time slide slot.
The pin is fixed on the shell of the rotary positioning device, and the cylindrical sleeve is fixed on the central shaft through threaded connection; when the central shaft rotates, the cylindrical sleeve on the central shaft also moves along with the rotation of the central shaft; in the case of a pin-immobilized cylindrical sleeve rotationally moving,
when perforation work starts, drilling fluid enters the pump body through the first oil pipe through the first oil delivery port, the piston moves forward along with the increase of drilling fluid pressure, so that the fluid continuously enters the pump body from the first oil inlet, the sealing ring is compressed, and the fluid is pushed out of the second oil outlet. The drilling fluid flows out from the second oil duct through the second oil port. The oil cylinder pushes the central shaft out; the pin is located at the first position, the accurate position of the drill perforation is determined through the first positioning chip, and the perforation device is fixed by the anchoring part connected with the second motor. Drilling fluid enters the hydraulic cylinder, and applies force to the piston of the hydraulic cylinder to push the piston to move along the radial direction; after the drill reaches the designated position, the rotary machining drill moves in a radial direction to contact the outer surface of the housing and eject a first opening in the housing; the spring will resist the force opposite the hydraulic force to maintain a stable position of the piston; and after the limiting position is reached, a positioning chip on the drill bit transmits a signal, the hydraulic cylinder stops working at the moment, and the spring generates return force to push the piston back to the initial position.
Meanwhile, a positioning chip on the drill bit transmits signals, drilling fluid flows into the first oil duct through the first oil duct port and enters the cylinder body, the sealing ring is compressed, the fluid is pushed out of the second oil outlet, and the central shaft continues to move along the axial direction; when the pin is rotationally moved in the cylindrical casing, the pin passes through the second guide slot from the first guide slot along the sliding slot from the first guide slot to the second guide slot, and the hydraulic cylinder is driven to move the rotary drill bit in the radial direction to contact the inner surface of the casing, so that perforation is performed on the casing, and a second hole is formed. The drill bit is then retracted while the positioning chip transmits a signal to stop the piston from moving forward.
To eject the plurality of holes, the pilot rotation means is activated again to move the central shaft and pin along the slot from the second position toward the sliding slot, and a third hole is ejected in the sleeve by rotating the machining bit and moving it in a radial direction into contact with the inner surface of the sleeve. The process is repeated until all perforations are completed.
The invention has the beneficial effects that: (1) The positioning mechanical perforating tool is provided with the guiding rotating unit, so that the position and the direction of perforation can be accurately controlled in a borehole to adapt to specific geological conditions and oil and gas exploitation requirements, the accuracy of the aperture and the direction in the perforation process can be ensured, the oil and gas exploitation efficiency is improved to the greatest extent, and the risks of stratum damage and crack expansion are reduced; (2) The perforating tool uses the drill bit to perforate, the drill bit can complete the perforation process in a shorter time, and the operation time and the cost are reduced; in the process of perforating the drill bit, the drill bit can stably rotate and advance and retreat, so that risks of stratum damage and crack expansion are reduced; compared with other perforation methods, the stability of the stratum can be better kept by perforating the drill bit; (3) Processing special pattern slits on the tubular casing to help guide and position the perforation process; these specially shaped slots may cooperate with corresponding features in the perforation tool to ensure accuracy and precision of perforation.
Drawings
FIG. 1 is a schematic illustration of a positioning mechanical perforating tool of the present invention;
FIG. 2 is a schematic diagram of a perforating tool of the present invention for performing localized perforation;
FIG. 3 is a partial cross-sectional view of a perforating unit of the perforating tool of the present invention;
FIG. 4 is a three-dimensional schematic of a perforating unit of a perforating tool of the present invention;
in the figure: 1. a first motor housing; 2 a first motor; 3. an oil pump; 4. a cylinder cover; 5. a first positioning chip; 6. an oil cylinder piston; 7. an oil cylinder housing; 8. a first oil port; 9. a first oil passage; 10. a cylinder; 11. a second oil port; 12. a second oil passage; 13. a perforating unit housing; 14. a cylindrical sleeve; 15. a groove; 16. a pin; 17. a central shaft; 18. a drill perforation unit housing; 19 a second positioning chip; 20. a planetary gear; 21. 23, 30, 31, flanges; 22. 24, tapered roller bearings; 25. a drill bit; 26. a spring; 27. a hydraulic cylinder piston; 28. a third positioning chip; 29. a hydraulic cylinder housing; a 32 cone gear; 33. a second motor housing; 34. deep groove ball bearings; 35. a second motor; 36A, a first guide slot; 36B, a second guide slot; 36C, a third guide slot; 37. a sliding slot; p1, a first position; p2, the second position; p3, a third position; A. a first motor unit, B, a rotational positioning unit; C. a drill perforation unit.
Detailed Description
The invention is further described with reference to the drawings and detailed description which follow:
referring to fig. 1 and 2, the invention relates to a positioning mechanical perforating tool, which mainly comprises a first motor unit A, a guiding rotation unit B and a drill perforating unit C. The method is characterized in that: the device mainly comprises a first motor unit A, a guiding rotation unit B and a drill perforation unit C; the first motor 2 is installed in the housing 1; the oil pump is mounted at the end of the first motor unit a.
The guiding rotation unit B mainly comprises an oil cylinder 3, an oil pump and a rotation positioning device, wherein the oil cylinder is connected with the oil pump 3 through a central shaft 17, and an oil cylinder cover 4 is connected with an oil cylinder shell 7 through threads; the inner wall of the end face of the cylinder cover 4 of the oil cylinder is provided with a first positioning chip 5, a first oil passage opening 8 is formed in the front end of the cylinder barrel 10, and a second oil passage opening 11 is formed in the rear end of the cylinder barrel 10; the oil cylinder piston 6 is arranged in the cylinder barrel 10, and sealing rings are further arranged on the inner walls of the oil cylinder piston 6 and the cylinder barrel 10, so that the sealing rings can effectively prevent drilling fluid from leaking; the oil cylinder piston 6 is connected with the central shaft 17 through threads, and a tool retracting groove is formed in the front end of the threaded connection between the central shaft 17 and the oil cylinder piston 6; in the rotary positioning device, a central shaft 17 is connected with a cylindrical sleeve 14 through threads, a tool retracting groove is formed in the front end of the central shaft 17 connected with the cylindrical sleeve 14 through threads, and slits 15 with different shapes are formed in the cylindrical sleeve 14 according to perforation requirements.
The drill perforation unit housing 18 and the second motor housing 33 are fixed through threaded connection, the deep groove ball bearing 34 is arranged beside the second motor 35, and the rotating shaft of the second motor 35 is supported, so that the correct position of the drill perforation unit housing is ensured to be maintained during operation, and the efficiency and the service life of the motor are improved.
Referring to fig. 3, which is a partial cross-sectional view of the perforating unit of the drill bit, the central shaft 17 is fixed with the casing 18 of the perforating unit of the drill bit by screw connection, and a second positioning chip 19 is installed on the end surface of the casing 18 of the perforating unit of the drill bit, and the drill bit 25 forms a hydraulic cylinder piston 27 in a hydraulic cylinder; and a third positioning chip 28 is arranged on the side end wall surface of the drill bit 25; the drill bit 25 drives the hydraulic cylinder to move radially through a motor, springs 26 are arranged on two sides of the inner wall of a hydraulic cylinder shell 29, and the springs 26 are pressed between a hydraulic cylinder piston 27 and a flange 21 of the hydraulic cylinder shell; two pairs of tapered roller bearings 22, 24 are mounted around the cylinder because the cylinder may experience shock and vibration during operation, and the bearings 22, 24 may reduce the effects of such shock and vibration. It is able to protect the structure of the hydraulic cylinder and nearby mechanical components from excessive impact forces and vibrations. The cylinder piston 27 is part of the planetary gear 20, while the bevel gear 32 is meshed with the motor by a shaft; the second motor 35 drives the bevel gear 32 to change the rotational speed of the rotary drill bit 25; the second motor 35 thus provides rotary power to the drill bit and the hydraulic cylinder provides power for reciprocating the drill bit in the radial direction.
Referring to fig. 4, fig. 4 shows in perspective view the main rotary unit of perforation, the slots 15 being made in the pattern of perforations required on a cylindrical casing, the slots on the casing comprising first guide slots 36A and second sliding slots 36B and third guide slots 36C and sliding slots 37; six similar guide slots and six perforation sites are evenly distributed around the cylindrical sleeve 14. The sliding slot 37 is provided with a first guide slot 36A, a second guide slot 36B and a third guide slot 36C, three of which are not shown in the schematic drawing; the six guide slots correspond to the six branches of the sliding slot.
Referring to fig. 2, fig. 2 depicts a state in which the positionable perforating tool reaches a limit position for perforation, upon rotation of the central shaft 17, the tubular casing 14 thereon also follows its rotational movement; barrel sleeve immovably mounted on pin 1614In the case of a rotary movement, the pin 16 passes from the first guide slot along the sliding slot from the first guide slot to the second guide slot (36A to the P2 position; and then from the sliding slot 36B to the third guide slot 36C to the P3 position, completing a perforation.
In general, in order to optimize inflow of drilling fluid, perforations with fixed intervals are made according to perforation positions of mechanical perforation tools in process manufacturing, the mechanical perforation tools are installed in a sleeve, and the sleeve is made of thin-wall steel tubes, so that important protection function is achieved in perforation operation. The casing typically comprises several metal pipe sections, typically three or four sections, the diameter and length of which depend on the specifications of the perforation tool and the casing or obstruction to be traversed. The casing is usually composed of a plurality of links and is fixed by threaded connection and is positioned at a position corresponding to the part to be perforated.
When perforation work starts, drilling fluid enters the cylinder body through the first oil conveying port 8 and passes through the first oil duct 9, and moves forward along with the increase of piston drilling fluid pressure, meanwhile, the fluid continuously enters the cylinder body from the first oil inlet 8, compresses the sealing ring, and pushes the fluid out of the second oil outlet 11. Drilling fluid flows out from the second oil outlet 11. The cylinder piston 6 pushes the central shaft 17 out; the pin 16 is secured to the perforating unit housing 13 with the pin 16 in a first position P1, the precise location of the drill perforation is determined by the second positioning chip 19, and the anchor portion to which the second motor 35 is connected secures the perforating device. At this point the second motor 35 rotates the machining bit 25 through the conical gear 32, drilling fluid enters the hydraulic cylinder, the spring 26 is compressed between the piston and the flange 21 of the cylinder housing 29, the machining bit 25 is moved in a radial direction by rotation to contact the outer surface of the housing and a first hole is ejected in the housing. After reaching the limit position, a third positioning chip 28 on the drill bit transmits a signal, the hydraulic cylinder stops working, the spring 26 generates a return force, the hydraulic cylinder piston 26 is pushed back to the initial position, the machining drill bit 25 is then retracted, and the rotary positioning device is activated.
Simultaneously, the third positioning chip 28 on the drill bit transmits signals, drilling fluid enters the cylinder body through the first oil port 8 and the second oil port 9, the sealing ring is compressed, and the drilling fluid flows out from the second oil duct 12 and the second oil port 11. At this time, the oil cylinder pushes the central shaft 17 to move along the axial direction, and the central shaft 17 drives the cylindrical sleeve 14 to move in a rotating way; when the pin 16 is rotationally moved without moving the cylindrical sleeve 14, the pin 16 passes from the first guide slit 36A along the sliding slit 37 from the position of the groove P1 to the position P2 through the second guide slit 36A; at the same time the positioning chip 19 transmits a signal to stop the cylinder piston 6 from moving forward, at which time the machining bit is rotated and moved in a radial direction, contacting the inner surface of the casing and then ejecting the second hole.
To eject the plurality of holes, the pilot rotation means is activated again to move the central shaft and the pin along the slot from the second position toward the sliding slot until the pin reaches the P3 position; a third hole is ejected in the casing by rotating the drill bit and moving it in a radial direction into contact with the inner surface of the casing. The process is repeated until all perforations are completed.
The above-described embodiments are intended to illustrate the present patent and not to limit the scope of the present patent, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present patent are intended to be within the scope of the present patent system.
Claims (6)
1. The invention relates to a positioning mechanical perforating tool, which mainly comprises a first motor unit (A), a guiding rotation unit (B) and a drill perforating unit (C), and is characterized in that: the device mainly comprises a first motor unit (A), a guiding rotation unit (B) and a drill perforation unit (C); the first motor (2) is arranged in the first motor shell (1); the oil pump (3) is arranged at the tail end of the first motor unit (A);
the guiding rotation unit (B) mainly comprises an oil pump (3), an oil cylinder and a rotation positioning device, wherein the oil cylinder is connected with the oil pump (3) through a central shaft (17), and an oil cylinder end cover (4) is connected with a cylinder barrel shell (7) through threads; the inner wall of the end face of the cylinder cover (4) of the oil cylinder is provided with a first positioning chip (5), a first oil passage opening (8) is formed in the front end of the cylinder barrel (10), and a second oil passage opening (11) is formed in the rear end of the cylinder barrel (10); the oil cylinder piston (6) is arranged in the cylinder barrel (10), the sealing rings are further arranged on the inner walls of the oil cylinder piston (6) and the cylinder barrel (10), and the sealing rings can effectively prevent drilling fluid from leaking; the oil cylinder piston (6) is connected with the central shaft (17) through threads, and a tool retracting groove is formed in the front end of the threaded connection between the central shaft (17) and the oil cylinder piston (6); in the rotary positioning device, a central shaft (17) is connected with a cylindrical sleeve (14) through threads, a tool retracting groove is formed at the front end of the threaded connection of the central shaft (17) and the cylindrical sleeve (14), and slots (15) with different shapes are processed on the cylindrical sleeve (14) according to perforation requirements;
a pin (16) is also arranged on the perforating unit shell (13) of the rotary positioning device; the central shaft (17) is fixedly connected with the drill bit perforating unit shell (18) through threads, a second positioning chip (19) is arranged on the end face of the drill bit perforating unit shell (18), and a drill bit (25) forms a piston (27) of a hydraulic cylinder in the hydraulic cylinder; a third positioning chip (28) is arranged on the side end wall surface of the drill bit (25); the drill bit (25) drives the hydraulic cylinder to move radially through the motor, springs (26) are arranged on two sides of the inner wall of a hydraulic cylinder shell (29), and the springs (26) are pressed between a hydraulic cylinder piston (27) and a flange (21) of the hydraulic cylinder shell; two pairs of tapered roller bearings (22), (24) are arranged around the hydraulic cylinder, and the bearings bear partial axial force because impact and vibration can be generated during the working of the drill bit, so that the structure of the hydraulic cylinder and nearby mechanical parts are protected from being disturbed by excessive impact force and vibration; the cylinder piston (27) is part of a planetary gear (20), while the conical gear (32) is meshed with a second motor (35) by means of a shaft; a second motor (35) drives the bevel gear (32) to change the rotational speed of the rotary drill bit (25); the second motor (35) provides rotary power for the drill bit, and the hydraulic cylinder provides power for the drill bit to reciprocate along the radial direction;
the drill perforation unit shell (18) is fixedly connected with the second motor shell (33) through threads, the deep groove ball bearing (34) is arranged beside the second motor (35) and supports the rotating shaft of the second motor (35), so that the correct position of the drill perforation unit shell is ensured to be kept during operation, and the efficiency and the service life of the motor are improved.
2. The positionable mechanical perforating tool of claim 1, wherein: the slots (15) are made on the tubular casing according to the required perforation pattern, the slots on the casing comprising first guide slots (36A) and second sliding slots (36B) and third guide slots (36C) and sliding slots (37); six similar guide slots and six perforation positioning points are uniformly distributed around the cylindrical sleeve (14); the sliding slot (37) is provided with a first guide slot (36A), a second guide slot (36B) and a third guide slot (36C), wherein three guide slots are not shown in the schematic diagram; the six guide slots correspond to the six branches of the sliding slot.
3. The positionable mechanical perforating tool of claim 1, wherein: in the rotary positioning device, a pin (16) is arranged on a perforating unit shell (13); the pin (16) is fixed on the perforating unit shell (13), and the cylindrical sleeve (14) is fixed on the central shaft (17) through threaded connection; when the central shaft (17) rotates, the cylindrical sleeve (14) on the central shaft also moves along with the rotation of the central shaft; when the pin (16) is rotationally moved by the cylindrical sleeve (14), the pin (16) passes through the second guide slit (36A) from the first guide slit (36A) along the sliding slit (37) from the position of the slit P1 to the position P2, thereby completing a perforation; and then the third guide slot (36C) passes through the sliding slot (36B) and finally reaches the P3 position to complete a perforation.
4. The positionable mechanical perforating tool of claim 1, wherein: drilling fluid enters the pump body through the first oil passage (9) through the first oil passage (8), moves forward along with the increase of the piston drilling fluid pressure, continuously enters the pump body from the first oil inlet (8), compresses the sealing ring and pushes the fluid out of the second oil outlet (11); the drilling fluid flows out from the second oil port (11) through the second oil duct (12), and the oil cylinder piston (6) pushes out the central shaft (17), so that the central shaft (17) can reciprocate along the axial direction.
5. The positionable mechanical perforating tool of claim 1, wherein: the second motor (35) drives the drill bit (25) to rotate through the driving bevel gear (32); drilling fluid enters the hydraulic cylinder, and the spring (26) is pressed between the piston and the flange (21) of the cylinder shell (29); in an initial state, drilling fluid enters a hydraulic cylinder, and force is applied to a piston (27) of the hydraulic cylinder to push the piston to move along the radial direction; after the drill reaches the designated position, the rotary machining drill (35) is moved in a radial direction to contact the outer surface of the housing and eject a first opening in the housing; a spring (26) generates a force against the hydraulic force to maintain a stable position of the piston; after the hydraulic cylinder stops working, the spring (26) generates return force to push the hydraulic cylinder piston (27) back to the initial position; when mounted on either side of the cylinder, springs (26) provide a balance force and return force to assist in stabilizing the piston in the cylinder in a particular position.
6. The positionable mechanical perforating tool of claim 1, wherein: the mechanical perforating tool also needs a fixing part (a fixing chuck or a clamp); the fixed chuck is arranged at the front end of the mechanical perforating tool; the hydraulic clamp is arranged at the rear end of the second motor, can stably clamp a workpiece, brings better safety, has the characteristics of quick clamping and release, and can improve the processing efficiency and the processing quality; the mounting positions of the holder and the fixed chuck need to be determined according to the specific design and application of the perforation tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311582985.9A CN117418812A (en) | 2023-11-24 | 2023-11-24 | Positionable mechanical perforating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311582985.9A CN117418812A (en) | 2023-11-24 | 2023-11-24 | Positionable mechanical perforating tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117418812A true CN117418812A (en) | 2024-01-19 |
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ID=89532641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311582985.9A Pending CN117418812A (en) | 2023-11-24 | 2023-11-24 | Positionable mechanical perforating tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117418812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662080A (en) * | 2024-01-26 | 2024-03-08 | 东营市三恒石油装备有限责任公司 | Easy-to-detach heavy-duty gun body for petroleum exploitation |
-
2023
- 2023-11-24 CN CN202311582985.9A patent/CN117418812A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662080A (en) * | 2024-01-26 | 2024-03-08 | 东营市三恒石油装备有限责任公司 | Easy-to-detach heavy-duty gun body for petroleum exploitation |
| CN117662080B (en) * | 2024-01-26 | 2024-04-02 | 东营市三恒石油装备有限责任公司 | Easy-to-detach heavy-duty gun body for petroleum exploitation |
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