CN210509131U - Magnetoelectric ignition device for perforation of oil and gas well - Google Patents
Magnetoelectric ignition device for perforation of oil and gas well Download PDFInfo
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- CN210509131U CN210509131U CN201921386919.3U CN201921386919U CN210509131U CN 210509131 U CN210509131 U CN 210509131U CN 201921386919 U CN201921386919 U CN 201921386919U CN 210509131 U CN210509131 U CN 210509131U
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- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000003814 drug Substances 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a magnetoelectric ignition device for oil gas well perforation, which comprises a bearing component, a magnetic ring component, an electric ignition cap, a connecting sleeve and a charge pipe; the lower end of the pressure-bearing assembly is connected with a magnetic ring assembly, the connecting sleeve is sleeved outside the pressure-bearing assembly and the magnetic ring assembly, and the lower end part of the magnetic ring assembly extends out of an opening at the bottom of the connecting sleeve; a powder tube is sleeved outside the lower end of the connecting sleeve, ignition powder is filled in the powder tube, an electric ignition cap is embedded in the ignition powder, and the electric ignition cap is fixedly connected with the lower end part of the magnetic ring assembly through a connecting piece; the bottom of the medicine tube is also provided with a sealing layer. The magnetoelectric ignition device for oil and gas well perforation has good insulating property, has the functions of static electricity prevention and stray current prevention, is safe to use, and is reliable in ignition; when the bridge plug seat sealing tool is matched with the bridge plug seat sealing tool for use, the bridge plug seat sealing tool can bear 120MPa of pressure and is high in bearing capacity.
Description
Technical Field
The utility model relates to an oil exploration development field specifically is an oil gas well is magnetoelectric ignition for perforation.
Background
The cable bridge plug setting tool is provided with an ignition device and a bridge plug fire cartridge, the cable is lowered into the well, the ignition device is ignited by applying current through the cable, then bridge plug gunpowder is ignited to generate high pressure, the high pressure is converted into tensile force through a hydraulic cylinder and a piston, and finally bridge plug setting and releasing are achieved. With the continuous deepening of shale gas exploration and development in China, the clustering perforation technology is continuously developed and widely applied. The clustering perforation technology is an important technology in a shale gas horizontal well multi-section and staged fracturing well completion process, and the technology is widely applied abroad at present.
At present, bridge plug ignition devices used in various domestic oil fields mainly take imported products as main parts, and grading module products matched with the cluster perforation bridge plug combined operation basically adopt direct current ignition and initiation systems, and alternating current ignition and initiation systems are also used in some domestic oil fields. The detonation mode uses a special digital igniter. As the purchase period of initiating explosive devices is long and the price is high, a plurality of oil field companies in China begin to adopt cost reduction and efficiency improvement, and the existing imported bridge plug initiating explosive devices can be localized and meet the construction requirements of clustering perforation to the maximum extent.
Patent document CN201821600551.1 discloses an ignition device, but its resistance value is 50 Ω, and its anti-static interference capability is poor, and it cannot be used in well site with high electrostatic sensitivity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil gas well is magnetoelectric ignition for perforation to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a magnetoelectric ignition device for oil gas well perforation comprises a pressure-bearing component, a magnetic ring component, an electric ignition cap, a connecting sleeve and a charge pipe; the lower end of the pressure-bearing assembly is connected with a magnetic ring assembly, the connecting sleeve is sleeved outside the pressure-bearing assembly and the magnetic ring assembly, and the lower end part of the magnetic ring assembly extends out of an opening at the bottom of the connecting sleeve; a powder tube is sleeved outside the lower end of the connecting sleeve, ignition powder is filled in the powder tube, an electric ignition cap is embedded in the ignition powder, and the electric ignition cap is fixedly connected with the lower end part of the magnetic ring assembly through a connecting piece; the bottom of the medicine tube is also provided with a sealing layer.
As a further aspect of the present invention: the pressure bearing assembly comprises a contact pin, an ignition tool seat and a conducting rod; the ignition tool seat is of a T-shaped revolving body structure, a step through hole is formed in the direction of the central axis, external threads are formed in the lower end part of the ignition tool seat, and a plurality of threaded holes are uniformly distributed in the circumferential direction on the lower end face; the conducting rod vertically penetrates through the step through hole of the ignition tool seat, and an insulating sleeve is sleeved between the conducting rod and the inner wall of the ignition tool seat; a sealing element is padded between the conducting rod and the step through hole; the contact pin is in threaded connection with the upper end of the conducting rod, and a gasket is further sleeved between the bottom of the contact pin and the upper end face of the ignition tool seat.
As a further aspect of the present invention: the magnetic ring assembly comprises a leg wire and a magnetic ring, and the leg wire is wound on the magnetic ring.
As a further aspect of the present invention: the electric ignition cap comprises a shell, an electrode plug and a priming charge; the electrode plug is arranged in the shell, and the shell is filled with priming powder.
As a further aspect of the present invention: the connecting sleeve is of a revolving body structure, and a step through hole is formed in the central axis direction of the connecting sleeve; the upper end of the connecting sleeve is provided with an internal thread matched with the external thread of the pressure-bearing component, and the lower end of the connecting sleeve is provided with a groove used for being clamped with the medicine tube.
As a further aspect of the present invention: and a limiting groove is arranged above the tube body of the medicine tube.
As a further aspect of the present invention: the sealing layer is made of curing glue.
Compared with the prior art, the beneficial effects of the utility model are that:
the magnetoelectric ignition device for oil and gas well perforation has good insulating property, has the functions of static electricity prevention and stray current prevention, is safe to use, and is reliable in ignition; when the bridge plug seat sealing tool is matched with the bridge plug seat sealing tool for use, the bridge plug seat sealing tool can bear 120MPa of pressure and is high in bearing capacity.
Drawings
FIG. 1 is a schematic structural diagram of a magnetoelectric ignition device for perforation of an oil-gas well;
FIG. 2 is a schematic structural diagram of a pressure-bearing assembly in a magnetoelectric ignition device for perforating an oil and gas well;
FIG. 3 is a schematic structural diagram of a magnetic ring assembly in a magnetoelectric ignition device for perforating an oil-gas well;
FIG. 4 is a schematic structural view of an electric ignition cap in the magnetoelectric ignition device for perforation of an oil-gas well;
FIG. 5 is a schematic view of a connecting sleeve structure in the magnetoelectric ignition device for oil and gas well perforation;
fig. 6 is a schematic view of a charge tube structure in the magnetoelectric ignition device for perforating oil and gas wells.
In the figure: 1-bearing component, 11-contact pin, 12-gasket, 13-igniter seat, 14-insulating sleeve, 15-conducting rod, 16-sealing element, 2-magnetic ring component, 21-pin wire, 22-magnetic ring, 3-electric ignition cap, 31-shell, 32-electrode plug, 33-priming powder, 4-connecting sleeve, 5-cartridge, 51-tube body, 52-limiting groove, 6-ignition powder, 7-sealing layer and 8-connecting element.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
Referring to fig. 1, a magnetoelectric ignition device for oil and gas well perforation comprises a pressure bearing assembly 1, a magnetic ring assembly 2, an electric ignition cap 3, a connecting sleeve 4 and a charge pipe 5; the lower end of the pressure-bearing component 1 is connected with a magnetic ring component 2, the connecting sleeve 4 is sleeved outside the pressure-bearing component 1 and the magnetic ring component 2, and the lower end part of the magnetic ring component 2 extends out of an opening at the bottom of the connecting sleeve 4; a charge tube 5 is sleeved outside the lower end of the connecting sleeve 4, ignition powder 6 is filled in the charge tube 5, an electric ignition cap 3 is embedded in the ignition powder 6, and the electric ignition cap 3 is fixedly connected with the lower end part of the magnetic ring assembly 2 through a connecting piece 8; the bottom of the medicine tube 5 is also provided with a sealing layer 7;
referring to fig. 2, the specific structure of the pressure-bearing assembly 1 is not limited, and in this embodiment, preferably, the pressure-bearing assembly 1 includes a pin 11, an igniter seat 13, and a conductive rod 15; the ignition tool seat 13 is of a T-shaped revolving body structure, a step through hole is formed in the direction of the central axis, external threads are formed in the lower end part of the ignition tool seat 13, and a plurality of threaded holes are uniformly distributed in the circumferential direction on the lower end surface; the conducting rod 15 vertically penetrates through a step through hole of the ignition tool seat 13, and an insulating sleeve 14 is sleeved between the conducting rod 15 and the inner wall of the ignition tool seat 13; a sealing element 16 is padded between the conducting rod 15 and the step through hole; the contact pin 11 is in threaded connection with the upper end of the conducting rod 15, and a gasket 12 is sleeved between the bottom of the contact pin 11 and the upper end face of the ignition tool seat 13;
referring to fig. 3, a specific structure of the magnetic ring assembly 2 is not limited, in this embodiment, preferably, the magnetic ring assembly 2 includes a leg wire 21 and a magnetic ring 22, and the leg wire 21 is wound on the magnetic ring 2;
referring to fig. 4, the specific structure of the electric ignition cap 3 is not limited, and in this embodiment, preferably, the electric ignition cap 3 includes a shell 31, an electrode plug 32 and a primer 33; the electrode plug 32 is arranged in a shell 32, and a priming charge 33 is filled in the shell 31;
referring to fig. 5, the specific structure of the connecting sleeve 4 is not limited, in this embodiment, preferably, the connecting sleeve 4 is a revolving structure, and a step through hole is formed in the central axis direction of the connecting sleeve 4; the upper end of the connecting sleeve 4 is provided with an internal thread matched with the external thread of the pressure-bearing component 1, and the lower end of the connecting sleeve is provided with a groove for clamping the medicine tube 5;
referring to fig. 6, a limiting groove 52 is disposed above the tube body 51 of the cartridge 5;
the specific form of the sealing layer 7 is not limited, and in this embodiment, preferably, the material of the sealing layer 7 is a curing adhesive.
The working principle of the embodiment is as follows:
when the electromagnetic ignition device works, the positive electrode of the ground magnetoelectric detonator is connected with the contact pin 11, the negative electrode of the ground magnetoelectric detonator is connected with the shell and then is electrified, the ignition powder 33 is ignited by the heat generated by the heating of the electrode plug 32 of the electric ignition cap 3, then the ignition powder 6 is ignited, the hot flame generated by the combustion of the ignition powder 6 and the high-temperature high-pressure gas ignite the bridge plug powder driving device, the high-temperature high-pressure gas generated by the bridge plug powder driving device pushes the piston to move downwards, so that the bridge plug is seated and sealed in the sleeve of the oil well, and the releasing.
Example 2
The embodiment provides an assembling method of the magnetoelectric ignition device for oil and gas well perforation, which comprises the following specific steps:
(1) an insulating sleeve 14 and a sealing piece 16 are sequentially sleeved outside the conducting rod 15, then the conducting rod is penetrated into a step through hole of the ignition tool seat 13 from bottom to top and extends out of the top, a gasket 12 is sleeved outside the extended conducting rod 15, and then the contact pin 11 and the conducting rod 15 are screwed tightly to complete the assembly of the pressure-bearing assembly 1;
(2) the upper end of the magnetic ring component 2 is connected with the pressure-bearing component 1 and is placed into a step through hole of the connecting sleeve 4, and the lower end of the pressure-bearing component 1 is in threaded connection with the upper end of the connecting sleeve 4;
(3) the lower end of the magnetic ring component 2 is fixedly connected with the electric ignition cap 3 through a connecting piece 8;
(4) a medicine tube 15 is clamped outside the lower end of the connecting sleeve 14;
(5) the ignition powder 6 is filled in the powder tube 15, and the opening at the tail part of the powder tube 5 is sealed by the curing glue.
The magnetoelectric ignition device for oil and gas well perforation has good insulating property, has the functions of static electricity prevention and stray current prevention, is safe to use, and is reliable in ignition; when the bridge plug seat sealing tool is matched with the bridge plug seat sealing tool for use, the bridge plug seat sealing tool can bear 120MPa of pressure and is high in bearing capacity.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A magnetoelectric ignition device for oil and gas well perforation comprises a pressure-bearing component (1), a magnetic ring component (2), an electric ignition cap (3), a connecting sleeve (4) and a charge pipe (5); the magnetic ring pressure-bearing device is characterized in that the lower end of the pressure-bearing component (1) is connected with a magnetic ring component (2), the connecting sleeve (4) is sleeved outside the pressure-bearing component (1) and the magnetic ring component (2), and the lower end part of the magnetic ring component (2) extends out of an opening at the bottom of the connecting sleeve (4); a charge pipe (5) is sleeved outside the lower end of the connecting sleeve (4), ignition powder (6) is filled in the charge pipe (5), an electric ignition cap (3) is embedded in the ignition powder (6), and the electric ignition cap (3) is fixedly connected with the lower end part of the magnetic ring component (2) through a connecting piece (8); and a sealing layer (7) is also arranged at the bottom of the medicine tube (5).
2. The magnetoelectric ignition device for oil and gas well perforation according to claim 1, characterized in that the bearing assembly (1) comprises a contact pin (11), an igniter seat (13) and a conductive rod (15); the ignition tool seat (13) is of a T-shaped revolving body structure, a step through hole is formed in the direction of the central axis, external threads are formed in the lower end part of the ignition tool seat (13), and a plurality of threaded holes are uniformly distributed in the circumferential direction on the lower end surface; the conducting rod (15) vertically penetrates through a step through hole of the ignition tool seat (13), and an insulating sleeve (14) is sleeved between the conducting rod (15) and the inner wall of the ignition tool seat (13); a sealing element (16) is padded between the conducting rod (15) and the step through hole; the contact pin (11) is in threaded connection with the upper end of the conducting rod (15), and a gasket (12) is further sleeved between the bottom of the contact pin (11) and the upper end face of the ignition tool seat (13).
3. The magnetoelectric ignition device for oil and gas well perforation according to claim 2, characterized in that the magnet ring assembly (2) comprises a leg wire (21) and a magnet ring (22), the leg wire (21) is wound on the magnet ring (22).
4. Magnetoelectric ignition device for oil and gas well perforation according to claim 2, characterized in that the electric ignition cap (3) comprises a housing (31), an electrode plug (32) and a primer (33); the electrode plug (32) is installed in a shell (31), and the shell (31) is filled with ignition powder (33).
5. The magnetoelectric ignition device for oil and gas well perforation according to claim 1, characterized in that the connecting sleeve (4) is a revolution body structure, and a step through hole is arranged in the direction of the central axis; the upper end of the connecting sleeve (4) is provided with an internal thread matched with the external thread of the pressure-bearing component (1), and the lower end of the connecting sleeve is provided with a groove used for being clamped with the medicine tube (5).
6. The magnetoelectric ignition device for oil and gas well perforation according to claim 1, characterized in that a limit groove (52) is provided above the body (51) of the charge tube (5).
7. The magnetoelectric ignition device for oil and gas well perforation according to any one of claims 1 to 6, characterized in that the material of the sealing layer (7) is a curing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921386919.3U CN210509131U (en) | 2019-08-23 | 2019-08-23 | Magnetoelectric ignition device for perforation of oil and gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921386919.3U CN210509131U (en) | 2019-08-23 | 2019-08-23 | Magnetoelectric ignition device for perforation of oil and gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210509131U true CN210509131U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921386919.3U Active CN210509131U (en) | 2019-08-23 | 2019-08-23 | Magnetoelectric ignition device for perforation of oil and gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210509131U (en) |
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2019
- 2019-08-23 CN CN201921386919.3U patent/CN210509131U/en active Active
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