CN109611045B - Underground multichannel simultaneous release electric control hydraulic safety device - Google Patents
Underground multichannel simultaneous release electric control hydraulic safety device Download PDFInfo
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- CN109611045B CN109611045B CN201811536241.2A CN201811536241A CN109611045B CN 109611045 B CN109611045 B CN 109611045B CN 201811536241 A CN201811536241 A CN 201811536241A CN 109611045 B CN109611045 B CN 109611045B
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- 239000003921 oil Substances 0.000 claims abstract description 62
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 44
- 230000007704 transition Effects 0.000 claims description 20
- 238000012360 testing method Methods 0.000 abstract description 22
- 239000003129 oil well Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The underground multichannel simultaneous release electric control hydraulic type safety device comprises a safety device mechanical structure and an electric control hydraulic release system; the electric control hydraulic release system comprises a connecting pin spring, a sliding connecting pin, a high-pressure oil duct, a low-pressure oil duct, a safety electromagnetic valve, a switching electromagnetic valve and a connecting pin oil duct; the sliding connecting pin of the device slides under the control of the well control equipment, and when the sliding connecting pin slides to be separated from the connecting pin hole of the five-core plug female connector, the five-core plug female connector is separated from the female connector connecting sleeve under the action of pulling force; meanwhile, the cable tube, the hydraulic oil tube and the five-core plug female connector of the device are connected in a plug-in type structure, so that the cable tube and the hydraulic oil tube can be conveniently separated; when the device is stuck in test equipment, the electric control hydraulic release system is controlled to actively release the connection between the five-core plug female connector and the female connector connecting sleeve, so that the problems of overlarge work load of the salvaging stuck equipment and even oil well scrapping caused by overlong legacy equipment sections are solved.
Description
Technical Field
The invention relates to the technical field of underground test electric control hydraulic modularized systems, in particular to an underground multichannel simultaneous release electric control hydraulic safety device.
Background
It is known that in the petroleum drilling and exploitation process, the underground environment needs to be tested, but in the actual testing process, the testing equipment is blocked due to various reasons, so that the testing equipment cannot be pulled out normally; if the forced breaking test equipment is adopted, and then the lower jamming part is salvaged, the problem that the work load of the salvaging jamming equipment is overlarge because the broken part cannot be controlled and the left equipment section is overlong after the breaking test equipment possibly occurs; even more severe conditions can lead to well abandonment.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses an underground multichannel simultaneous release electric control hydraulic safety device, which is provided with an electric control hydraulic release system, wherein a five-core plug female connector is connected with a female connector connecting sleeve through a sliding connecting pin of the electric control hydraulic release system, the sliding connecting pin slides under the control of the electric control hydraulic release system, and when the sliding connecting pin slides to be separated from a connecting pin hole of the five-core plug female connector, the five-core plug female connector is separated from the female connector connecting sleeve under the action of pulling force; meanwhile, the cable tube, the hydraulic oil tube and the five-core plug female connector of the device are connected in a plug-in type structure, so that the cable tube and the hydraulic oil tube can be conveniently separated; the device is connected with the test equipment simultaneously for use, when the test equipment is blocked, the electric control hydraulic release system is used for releasing the connection between the five-core plug female connector and the female connector connecting sleeve, and the phenomenon that the left equipment section is overlong after the test equipment is forcibly broken in the past can not occur, so that the problems of overlarge work load of the salvaging blocked equipment and even oil well scrapping caused by overlong left equipment section are solved.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the underground multichannel simultaneous release electric control hydraulic type safety device comprises a safety device mechanical structure and an electric control hydraulic release system; the mechanical structure of the safety device comprises a five-core plug female connector, a female connector connecting sleeve, a cable self-sealing plug, a hydraulic oil duct self-sealing plug, a positioning pin, a positioning pressing plate, a cable pipe, a connecting transition sleeve, a hydraulic oil pipe, a male connector connecting sleeve, a five-core plug male connector, a cable threaded connector and an oil pipe threaded connector; the upper part of the five-core plug female connector is of a general five-core female connector structure, the lower part of the five-core plug female connector is in a shaft shape with steps, a plurality of connecting pin step holes are uniformly formed in the radial direction of the end part close to the shaft, and a hydraulic oil hole, a cable hole and a plurality of positioning pin holes are formed in the axial direction of the lower step shaft; the female joint connecting sleeve is hollow and tubular, the upper part is a step hole, the middle part is provided with a step ring, and the lower part is also a step hole; two seal ring grooves are formed in the position, close to the upper end face, of the upper step hole, and a plurality of connecting pin through holes are radially formed in the position, close to the step ring, of the upper step hole; the lower step hole is provided with a threaded hole near the step ring, and two seal ring grooves are arranged near the lower end face of the lower step hole; the step shaft at the lower part of the five-core plug female connector is inserted into the step hole at the upper part of the female connector connecting sleeve; the connecting transition sleeve is a hollow sleeve, the upper end and the lower end of the hollow sleeve are provided with external threads, the inner hole at the upper end of the hollow sleeve is provided with a positioning groove, and the connecting transition sleeve is connected with the female joint connecting sleeve through threads; the upper part of the five-core plug male connector is in a stepped shaft shape, threads are machined at the outer diameter of the uppermost end of the five-core plug male connector, a hydraulic oil hole and a cable hole are axially formed in the stepped shaft at the upper part of the five-core plug male connector, threads are formed at the outlets of the hydraulic oil hole and the cable hole, and the lower part of the five-core plug male connector is of a general five-core male connector structure; the male joint connecting sleeve is of a hollow short tubular structure, and the upper end and the lower end of the male joint connecting sleeve are provided with internal threads with opposite rotation directions; the connecting transition sleeve is connected with the five-core plug male connector through a male connector connecting sleeve; the positioning pressing plate is in a round cake shape, the lower part of the positioning pressing plate is provided with a positioning lug, the pressing plate is provided with a through hydraulic oil pipe hole and a through cable pipe hole, and the upper part of the positioning pressing plate is provided with a positioning pin blind hole; the positioning pressing plate is arranged in a step annular hole in the middle of the female connector connecting sleeve, the positioning lug is inserted into a positioning groove at the upper part of the connecting transition sleeve, and the positioning pressing plate is positioned with the five-core plug female connector through a positioning pin; the cable pipe is characterized in that threaded joints are arranged at two ends of the cable pipe, the threaded joint at the upper end is a cable self-sealing plug, the cable self-sealing plug is provided with a thrust step and an extension head, the cable self-sealing plug penetrates through a cable pipe hole of the positioning pressing plate, the thrust step is tightly attached to the lower end face of the positioning pressing plate and is fixed on the positioning pressing plate by a nut, and the extension head is inserted into a cable hole at the lower part of the female joint of the five-core plug; the lower end threaded joint of the cable pipe is a cable threaded joint, and the cable threaded joint is connected with a cable hole at the upper part of the male joint of the five-core plug by threads; the two ends of the hydraulic oil pipe are provided with threaded joints, the threaded joint at the upper end is a hydraulic oil passage self-sealing plug, the hydraulic oil passage self-sealing plug is provided with a thrust step and an extension head, the hydraulic oil passage self-sealing plug penetrates through a hydraulic oil pipe hole of the positioning pressing plate, the thrust step is tightly attached to the lower end face of the positioning pressing plate, the positioning pressing plate is fixed by a nut, and the extension head is inserted into a hydraulic oil hole at the lower part of the female joint of the five-core plug; the lower end threaded joint of the hydraulic oil pipe is an oil pipe threaded joint which is connected with a hydraulic oil hole at the upper part of the male joint of the five-core plug by threads;
the electric control hydraulic release system comprises a connecting pin spring, a sliding connecting pin, a high-pressure oil duct, a low-pressure oil duct, a safety electromagnetic valve, a switching electromagnetic valve and a connecting pin oil duct; the connecting pin spring is arranged in a connecting pin hole of the female joint connecting sleeve; the sliding connecting pin is arranged in a connecting pin hole corresponding to the female connector connecting sleeve and the female connector of the five-core plug; the high-pressure oil duct, the low-pressure oil duct, the safety electromagnetic valve, the switch electromagnetic valve and the connecting pin oil duct are arranged in the five-core plug female connector; one end of the switch electromagnetic valve is connected with the high-pressure oil channel, the other end of the switch electromagnetic valve is connected with the connecting pin oil channel, and the switch electromagnetic valve is also connected with a switch electromagnetic valve cable; one end of the safety electromagnetic valve is connected with the low-pressure oil channel, the other end of the safety electromagnetic valve is connected with the connecting pin oil channel, and the safety electromagnetic valve is also connected with a safety electromagnetic valve cable; one end of the connecting pin oil duct is connected with a switching electromagnetic valve and a safety electromagnetic valve, and the other end of the connecting pin oil duct is connected with a plurality of connecting pin holes of the five-core plug female connector; the general five-core female connector structure and the general five-core male connector structure are the structures of the female plug and the male plug, which are disclosed in application number 201721904772.3 and are applicable to the general connector connection structure of the downhole tool.
Preferably, the safety electromagnetic valve is a normally open valve, and the switch electromagnetic valve is a normally closed valve.
Preferably, after the sliding connecting pin and the connecting pin spring are installed, the female joint connecting sleeve is plugged by a plug, and is welded and sealed.
Preferably, the cable tube is connected with the cable self-sealing plug at the upper part and the cable threaded joint at the lower part in a welding mode.
Preferably, the hydraulic oil pipe is connected with the self-sealing plug of the hydraulic oil passage at the upper part and the threaded joint of the oil pipe at the lower part in a welding mode.
Preferably, the connection of the five-core plug female connector and the female connector connecting sleeve, the connection of the female connector connecting sleeve and the connection transition sleeve, and the connection of the male connector connecting sleeve and the five-core plug male connector are sealed through a sealing ring.
Preferably, the connecting thread for connecting the transition sleeve and the male joint connecting sleeve is a conical thread.
Preferably, the cable self-sealing plug is sealed with the cable hole of the five-core plug female connector through a sealing ring.
Preferably, the oil duct self-sealing plug is sealed with the hydraulic oil hole of the five-core plug female connector through a sealing ring.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses an underground multichannel simultaneous release electric control hydraulic safety device, which is provided with an electric control hydraulic release system, wherein a five-core plug female connector is connected with a female connector connecting sleeve through a sliding connecting pin of the electric control hydraulic release system, the sliding connecting pin slides under the control of the electric control hydraulic release system, and when the sliding connecting pin slides to be separated from a connecting pin hole of the five-core plug female connector, the five-core plug female connector is separated from the female connector connecting sleeve under the action of pulling force; meanwhile, the cable tube, the hydraulic oil tube and the five-core plug female connector of the device are connected in a plug-in type structure, so that the cable tube and the hydraulic oil tube can be conveniently separated; the device is connected with the test equipment simultaneously for use, when the test equipment is blocked, the electric control hydraulic release system is used for actively releasing the connection between the five-core plug female connector and the female connector connecting sleeve, and the phenomenon that the left equipment section is overlong after the test equipment is forcibly broken in the past can not occur, so that the problems of overlarge work load of the salvaging blocked equipment and even oil well scrapping caused by overlong left equipment section are solved.
Drawings
FIG. 1 is a schematic diagram of a downhole multi-channel simultaneous release electrically controlled hydraulic safety device;
fig. 2 is a schematic diagram of a partial enlarged structure.
In the figure: 1. five-core plug female connector; 2. a female joint connecting sleeve; 3. a cable self-sealing plug; 4. self-sealing plug of hydraulic oil duct; 5. a positioning pin; 6. positioning a pressing plate; 7. a cable tube; 8. connecting a transition sleeve; 9. a hydraulic oil pipe; 10. the male joint connecting sleeve; 11. five-core plug male connector; 13. a cable threaded joint; 14. an oil pipe threaded joint; 15. a connecting pin spring; 16. a sliding connection pin; 17. a high-pressure oil passage; 18. a low pressure oil passage; 19. a safety electromagnetic valve; 20. switching on and off the electromagnetic valve; 21. a connecting pin oil passage; 22. switching a solenoid valve cable; 23. a safety solenoid valve cable.
Detailed Description
The invention will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the invention.
The underground multichannel simultaneous release electric control hydraulic type safety device comprises a safety device mechanical structure and an electric control hydraulic release system; the mechanical structure of the safety device comprises a five-core plug female connector 1, a female connector connecting sleeve 2, a cable self-sealing plug 3, a hydraulic oil duct self-sealing plug 4, a positioning pin 5, a positioning pressing plate 6, a cable pipe 7, a connecting transition sleeve 8, a hydraulic oil pipe 9, a male connector connecting sleeve 10, a five-core plug male connector 11, a cable threaded connector 13 and an oil pipe threaded connector 14; the step shaft at the lower part of the five-core plug female connector 1 is inserted into the step hole at the upper part of the female connector connecting sleeve 2, is sealed by a sealing ring and is connected by a sliding connecting pin 16; after the installation of the sliding connecting pin 16 and the connecting pin spring 15 is completed, plugging by a plug, and welding and sealing; the connecting transition sleeve 8 is connected with the female joint connecting sleeve 2 through threads and is sealed through a sealing ring; the connection transition sleeve 8 is connected with the five-core plug male connector 11 through the male connector connecting sleeve 10, the connection threads of the connection transition sleeve 8 and the connecting sleeve 10 are cone threads for self-sealing, and the five-core plug male connector 11 is sealed with the male connector connecting sleeve 10 through a sealing ring; the positioning pressing plate 6 is arranged in a step ring in the middle of the female connector connecting sleeve 2, the positioning lug is inserted into a positioning groove connected with the upper part of the transition sleeve 8, and the positioning pressing plate 6 is positioned with the five-core plug female connector 1 through the positioning pin 5; the cable self-sealing plug 3 welded and connected with the upper end of the cable tube 7 passes through a cable hole of the positioning pressing plate 6, the thrust step is tightly attached to the lower end surface of the positioning pressing plate 6, the thrust step is fixed on the positioning pressing plate 6 by a nut, and the extension head is inserted into the cable hole at the lower part of the five-core plug female connector 1 and is sealed by a sealing ring; the cable screwed joint 13 welded and connected with the lower end of the cable tube 7 is connected with a cable hole at the upper part of the male joint 11 of the five-core plug; the oil duct self-sealing plug 4 welded and connected with the upper end of the hydraulic oil pipe 9 passes through the hydraulic oil hole of the positioning pressing plate 6, the thrust step is tightly attached to the lower end surface of the positioning pressing plate 6, the thrust step is fixed on the positioning pressing plate 6 by a nut, and the extension head is inserted into the hydraulic oil hole at the lower part of the five-core plug female connector 1 and is sealed by a sealing ring; an oil pipe threaded joint 14 welded and connected with the lower end of the hydraulic oil pipe 9 is connected with a hydraulic oil hole at the upper part of the five-core plug male joint 11;
the electric control hydraulic release system comprises a connecting pin spring 15, a sliding connecting pin 16, a high-pressure oil channel 17, a low-pressure oil channel 18, a safety electromagnetic valve 19, a switching electromagnetic valve 20 and a connecting pin oil channel 21; the connecting pin spring 15 is arranged in a connecting pin hole of the female joint connecting sleeve 2; the sliding connecting pin 16 is arranged in a connecting pin hole of the female connector connecting sleeve 2 corresponding to the five-core plug female connector 1; the high-pressure oil channel 17, the low-pressure oil channel 18, the safety electromagnetic valve 19, the switch electromagnetic valve 20 and the connecting pin oil channel 21 are arranged in the five-core plug female connector 1; one end of the switch electromagnetic valve 20 is connected with the high-pressure oil channel 17, the other end of the switch electromagnetic valve 20 is connected with the connecting pin oil channel 21, and the switch electromagnetic valve 20 is also connected with the switch electromagnetic valve cable 22; one end of the safety electromagnetic valve 19 is connected with the low-pressure oil channel 18, the other end of the safety electromagnetic valve 19 is connected with the connecting pin oil channel 21, and the safety electromagnetic valve 19 is also connected with the safety electromagnetic valve cable 23; one end of the connecting pin oil duct 21 is connected with a switching electromagnetic valve 20 and a safety electromagnetic valve 19, and the other end of the connecting pin oil duct is connected with a plurality of connecting pin holes of the five-core plug female connector 1.
When the underground multichannel simultaneous release electric control hydraulic safety device is used, the device needs to be matched with other devices such as a liquid cavity device, a liquid cavity device sensor, a bidirectional power device sensor, an underground environment test sensor, an underground plugging device and the like of an underground test system, and the device is connected with the other underground devices up and down through standard connecting joints at the upper end and the lower end to form an underground test device combination, wherein the position of the underground test device combination can be arranged at any position required, and then the underground test device combination can be put into the underground through a steel cable to test various underground environment parameters; when the downhole multi-channel simultaneous release electric control hydraulic safety device works normally, the switch electromagnetic valve 20 is closed, the safety electromagnetic valve 19 is opened, the connecting pin oil duct 21 is communicated with the low-pressure oil duct 18, the sliding connecting pin 16 is positioned in a connecting pin hole corresponding to the female connector connecting sleeve 2 and the female connector 1 of the five-core plug under the action of the connecting pin spring 15, and the female connector connecting sleeve 2 is normally connected with the female connector 1 of the five-core plug; the downhole multi-channel simultaneous release electric control hydraulic safety device can ensure that high-pressure liquid entering the connecting pin oil duct 21 flows back to the low-pressure oil duct through the safety electromagnetic valve 19 even if the switching electromagnetic valve 20 leaks or the sealing part leaks during normal operation, and ensures that the connection between the five-core plug female connector 1 and the female connector connecting sleeve 2 of the downhole multi-channel simultaneous release electric control hydraulic safety device is reliable.
After the test is completed, the underground test device combination is lifted by the steel cable, and can be lifted out of the well smoothly under normal conditions; when abnormal conditions occur, such as the blocking device cannot be loosened to cause the blocking phenomenon of the underground testing device combination, a signal is sent to the safety electromagnetic valve 19 and the switch electromagnetic valve 20 through the aboveground control equipment, the safety electromagnetic valve 19 is closed after receiving the signal, the switch electromagnetic valve 20 is opened after receiving the signal, at the moment, the connecting pin oil duct 21 is communicated with the high-pressure oil duct 17, high-pressure hydraulic oil enters the connecting pin hole of the five-core plug female connector 1 through the connecting pin oil duct 21, and the sliding connecting pin 16 is pushed to slide outwards in the radial direction; when the sliding connection pin 16 slides to be separated from the connection pin hole of the five-core plug female connector 1, the connection between the five-core plug female connector 1 and the female connector connecting sleeve 2 is released, the five-core plug female connector and the female connector connecting sleeve are separated under the action of pulling force, the situation that the underground legacy equipment section is not overlong is ensured, and the follow-up underground dead equipment is convenient to salvage.
The invention is not described in detail in the prior art.
Claims (7)
1. The underground multichannel simultaneous release electric control hydraulic safety device is characterized in that: comprises a safety device mechanical structure and an electric control hydraulic release system; the mechanical structure of the safety device comprises a five-core plug female connector (1), a female connector connecting sleeve (2), a cable self-sealing plug (3), a hydraulic oil duct self-sealing plug (4), a positioning pin (5), a positioning pressing plate (6), a cable pipe (7), a connecting transition sleeve (8), a hydraulic oil pipe (9), a male connector connecting sleeve (10), a five-core plug male connector (11), a cable threaded connector (13) and an oil pipe threaded connector (14); the upper part of the five-core plug female connector (1) is of a general five-core female connector structure, the lower part of the five-core plug female connector is of a shaft shape with steps, a plurality of connecting pin step holes are uniformly formed in the radial direction of the end part close to the shaft, and a hydraulic oil hole, a cable hole and a plurality of positioning pin holes are formed in the axial direction of the lower step shaft; the female joint connecting sleeve (2) is hollow and tubular, the upper part is a step hole, the middle part is provided with a step ring, and the lower part is also a step hole; two seal ring grooves are formed in the position, close to the upper end face, of the upper step hole, and a plurality of connecting pin through holes are radially formed in the position, close to the step ring, of the upper step hole; the lower step hole is provided with a threaded hole near the step ring, and two seal ring grooves are arranged near the lower end face of the lower step hole; the step shaft at the lower part of the five-core plug female connector (1) is inserted into the step hole at the upper part of the female connector connecting sleeve (2); the connecting transition sleeve (8) is a hollow sleeve, the upper end and the lower end of the hollow sleeve are provided with external threads, the inner hole at the upper end of the hollow sleeve is provided with a positioning groove, and the connecting transition sleeve (8) is connected with the female joint connecting sleeve (2) through threads; the upper part of the five-core plug male connector (11) is in a stepped shaft shape, threads are machined at the outer diameter of the uppermost end of the five-core plug male connector, a hydraulic oil hole and a cable hole are axially formed in the stepped shaft at the upper part of the five-core plug male connector, threads are formed at the outlets of the hydraulic oil hole and the cable hole, and the lower part of the five-core plug male connector (11) is of a general five-core male connector structure; the male joint connecting sleeve (10) is of a hollow short tubular structure, and the upper end and the lower end of the male joint connecting sleeve are provided with internal threads with opposite rotation directions; the connecting transition sleeve (8) is connected with the five-core plug male connector (11) through the male connector connecting sleeve (10); the positioning pressing plate (6) is in a round cake shape, the lower part of the positioning pressing plate is provided with a positioning lug, the pressing plate is provided with a through hydraulic oil pipe hole and a through cable pipe hole, and the upper part of the positioning pressing plate (6) is provided with a positioning pin blind hole; the positioning pressing plate (6) is arranged in a step annular hole in the middle of the female connector connecting sleeve (2), the positioning lug is inserted into a positioning groove at the upper part of the connecting transition sleeve (8), and the positioning pressing plate (6) is positioned with the five-core plug female connector (1) through the positioning pin (5); the two ends of the cable tube (7) are provided with threaded joints, the threaded joint at the upper end is a cable self-sealing plug (3), the cable self-sealing plug (3) is provided with a thrust step and an extension head, the cable self-sealing plug (3) penetrates through a cable tube hole of the positioning pressing plate (6), the thrust step is tightly attached to the lower end face of the positioning pressing plate (6) and is fixed on the positioning pressing plate (6) by a nut, and the extension head is inserted into a cable hole at the lower part of the five-core plug female joint (1); the lower end threaded joint of the cable pipe (7) is a cable threaded joint (13), and the cable threaded joint (13) is connected with a cable hole at the upper part of the five-core plug male joint (11) by threads; the two ends of the hydraulic oil pipe (9) are provided with threaded joints, the threaded joint at the upper end is a hydraulic oil passage self-sealing plug (4), the hydraulic oil passage self-sealing plug (4) is provided with a thrust step and an extension head, the hydraulic oil passage self-sealing plug (4) penetrates through a hydraulic oil pipe hole of the positioning pressing plate (6), the thrust step is tightly attached to the lower end face of the positioning pressing plate (6) and is fixed on the positioning pressing plate (6) by a nut, and the extension head is inserted into a hydraulic oil hole at the lower part of the five-core plug female joint (1); the lower end threaded joint of the hydraulic oil pipe (9) is an oil pipe threaded joint (14), and the oil pipe threaded joint (14) is connected with a hydraulic oil hole at the upper part of the five-core plug male joint (11) by threads;
the electric control hydraulic release system comprises a connecting pin spring (15), a sliding connecting pin (16), a high-pressure oil channel (17), a low-pressure oil channel (18), a safety electromagnetic valve (19), a switching electromagnetic valve (20) and a connecting pin oil channel (21); the connecting pin spring (15) is arranged in a connecting pin hole of the female joint connecting sleeve (2); the sliding connecting pin (16) is arranged in a connecting pin hole of the female connector connecting sleeve (2) corresponding to the five-core plug female connector (1); the high-pressure oil duct (17), the low-pressure oil duct (18), the safety electromagnetic valve (19), the switching electromagnetic valve (20) and the connecting pin oil duct (21) are arranged in the five-core plug female connector (1); one end of the switch electromagnetic valve (20) is connected with the high-pressure oil channel (17), the other end of the switch electromagnetic valve is connected with the connecting pin oil channel (21), and the switch electromagnetic valve (20) is also connected with a switch electromagnetic valve cable (22); one end of the safety electromagnetic valve (19) is connected with the low-pressure oil channel (18), the other end of the safety electromagnetic valve is connected with the connecting pin oil channel (21), and the safety electromagnetic valve (19) is also connected with a safety electromagnetic valve cable (23); one end of the connecting pin oil duct (21) is connected with a switching electromagnetic valve (20) and a safety electromagnetic valve (19), and the other end of the connecting pin oil duct is connected with a plurality of connecting pin holes of the five-core plug female connector (1);
the safety electromagnetic valve (19) is a normally open valve, and the switch electromagnetic valve (20) is a normally closed valve;
the five-core plug female connector (1) is connected with the female connector connecting sleeve (2), the female connector connecting sleeve (2) is connected with the connecting transition sleeve (8), and the male connector connecting sleeve (10) is connected with the five-core plug male connector (11) through a sealing ring.
2. The downhole multi-channel simultaneous release electro-hydraulic safety device of claim 1, wherein: after the sliding connecting pin (16) and the connecting pin spring (15) are installed, the female joint connecting sleeve (2) is plugged by a plug, and is welded and sealed.
3. The downhole multi-channel simultaneous release electro-hydraulic safety device of claim 1, wherein: the cable tube (7) is welded with the cable self-sealing plug (3) at the upper part and the cable threaded joint (13) at the lower part.
4. The downhole multi-channel simultaneous release electro-hydraulic safety device of claim 1, wherein: the hydraulic oil pipe (9) is welded with the upper hydraulic oil passage self-sealing plug (4) and the lower oil pipe threaded joint (14).
5. The downhole multi-channel simultaneous release electro-hydraulic safety device of claim 1, wherein: the connecting thread for connecting the transition sleeve (8) and the male joint connecting sleeve (10) is a conical thread.
6. The downhole multi-channel simultaneous release electro-hydraulic safety device of claim 1, wherein: the cable self-sealing plug (3) and the cable hole of the five-core plug female connector (1) are sealed by a sealing ring.
7. The downhole multi-channel simultaneous release electro-hydraulic safety device of claim 1, wherein: the oil duct is sealed between the self-sealing plug (4) and the hydraulic oil hole of the five-core plug female connector (1) through a sealing ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811536241.2A CN109611045B (en) | 2018-12-14 | 2018-12-14 | Underground multichannel simultaneous release electric control hydraulic safety device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811536241.2A CN109611045B (en) | 2018-12-14 | 2018-12-14 | Underground multichannel simultaneous release electric control hydraulic safety device |
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| CN109611045A CN109611045A (en) | 2019-04-12 |
| CN109611045B true CN109611045B (en) | 2023-12-19 |
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| CN113236146B (en) * | 2021-06-22 | 2022-03-11 | 深蓝(天津)智能制造有限责任公司 | Remote control electromagnetic energy storage release short joint |
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| US5109921A (en) * | 1991-04-29 | 1992-05-05 | Halliburton Company | Controlled weak point for wireline cable |
| GB201112168D0 (en) * | 2010-07-21 | 2011-08-31 | Spence Dean | Coil tubing cable head with tool release, fluid circulation and cable protection features |
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| CN207863883U (en) * | 2017-12-29 | 2018-09-14 | 洛阳润成石化设备有限公司 | A kind of universal joint tail portion connection structure suitable for downhole electric tool |
| CN108825589A (en) * | 2018-08-31 | 2018-11-16 | 洛阳润成石化设备有限公司 | A kind of downhole electric control is surged Bidirectional power device liquid oil pocket device |
| CN210343275U (en) * | 2018-12-14 | 2020-04-17 | 洛阳润成石化设备有限公司 | Underground multi-channel simultaneous release electric control hydraulic safety device |
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|---|---|---|---|---|
| US5109921A (en) * | 1991-04-29 | 1992-05-05 | Halliburton Company | Controlled weak point for wireline cable |
| GB201112168D0 (en) * | 2010-07-21 | 2011-08-31 | Spence Dean | Coil tubing cable head with tool release, fluid circulation and cable protection features |
| CN104453731A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Quick connector and application method |
| CN106150394A (en) * | 2016-08-22 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of downhole oil pipe inner cable docking facilities |
| CN207863883U (en) * | 2017-12-29 | 2018-09-14 | 洛阳润成石化设备有限公司 | A kind of universal joint tail portion connection structure suitable for downhole electric tool |
| CN108825589A (en) * | 2018-08-31 | 2018-11-16 | 洛阳润成石化设备有限公司 | A kind of downhole electric control is surged Bidirectional power device liquid oil pocket device |
| CN210343275U (en) * | 2018-12-14 | 2020-04-17 | 洛阳润成石化设备有限公司 | Underground multi-channel simultaneous release electric control hydraulic safety device |
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| CN109611045A (en) | 2019-04-12 |
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