CN115012885A - Contact pin electric connection type perforating gun - Google Patents
Contact pin electric connection type perforating gun Download PDFInfo
- Publication number
- CN115012885A CN115012885A CN202210659476.0A CN202210659476A CN115012885A CN 115012885 A CN115012885 A CN 115012885A CN 202210659476 A CN202210659476 A CN 202210659476A CN 115012885 A CN115012885 A CN 115012885A
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- CN
- China
- Prior art keywords
- perforating gun
- contact pin
- wire passing
- outer tube
- perforating
- Prior art date
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- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002512 anti-withdrawal effect Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000565 sealant 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
Images
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
- E21B43/116—Gun or shaped-charge perforators
-
- 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
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- 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)
- Electrostatic Spraying Apparatus (AREA)
Abstract
The invention provides a contact pin electric-contact type perforating gun, and relates to the technical field of oil drilling. The contact pin electric connection type perforating gun comprises perforating gun outer tubes (1), perforating gun serial connecting heads (2) and a supporting disc (4), wherein the perforating gun serial connecting heads (2) are arranged between every two perforating gun outer tubes (1), and two ends of each perforating gun serial connecting head are respectively connected with the perforating gun outer tubes (1); the support disc (4) is fixedly arranged on the outer tube (1) of the perforating gun and is positioned on the connecting end surface between the outer tube (1) of the perforating gun and the serial connecting head (2) of the perforating gun; a threading device (3) is arranged in the perforating gun string connecting head (2); a wire passing joint (5) is arranged between the wire passing device (3) and the supporting disc (4); the wire passing connector (5) is fixedly arranged on the supporting disk (4) through a buckle. The invention can simplify the wiring operation between the outer tubes of the multistage perforating gun and solve the technical problems of low indirect wiring efficiency and limited wiring operation space of the perforating gun.
Description
Technical Field
The invention relates to the technical field of petroleum drilling, in particular to a contact pin electric connection type perforating gun.
Background
In the multi-stage perforation operation of the cable of the oil and gas well, the used multi-stage perforation tubular column is used as a perforator, the device is powered by the ground after being put into the well bottom, a selective power generation detonator is excited, the perforating bullet is ignited and detonated, and the sleeve and the stratum are perforated through the energy-gathered armor piercing effect of the perforating bullet to form an oil and gas channel; the multistage perforating pipe column is internally provided with multistage connected perforating guns, and the upper end of each stage of perforating gun is provided with an ignition device; in a conventional multistage perforating string, the perforating string comprises an outer gun barrel, a bullet frame pipe and a connecting joint, when a user uses a perforating gun, the perforating gun needs to be perforated to connect a lead wire, a perforating bullet, a detonating cord, a detonator and a connecting selective firing switch, the operation procedure is complex, the installation time of the perforating gun is long, and the production efficiency of construction in a slow well is improved. The connection joint both ends need carry out the wiring operation on the well joint of trompil after connecting outer barrel, and operating space is little wiring time is long, need pay out a large amount of time cost. In order to excite a plurality of perforating guns in a grading way and realize high-efficiency perforating operation, the perforating guns of the multiple stages are all required to penetrate from head to tail along a pipe column through a conducting wire, and the conducting wires of the two perforating guns are required to be connected at the serial connection head of the perforating guns. In the prior art, when wiring is carried out, the installation is inconvenient, the wiring is troublesome, and stranded wires can be caused by the rotation between perforating guns.
In patent CN201721260923.6, a contact-powered perforating gun is disclosed, which comprises a gun barrel and a cartridge holder assembly; a bullet rack component is fixedly arranged in the gun barrel; the bullet rack assembly comprises a bullet rack, an upper bullet rack disc, a lower bullet rack disc, a conductive contact and an electric detonating device; the modularized multistage perforating pipe column comprises a gun head, a gun tail and at least one set of perforating gun assembly fixedly arranged between the gun head and the gun tail from top to bottom in sequence.
In patent CN201920844077.5, a selective firing hole gun string coupling is disclosed, which comprises a coupling body, a first connecting structure, a second connecting structure, a wiring hole, a selective firing switch, an access hole of a detonator, and a threading device mounting hole, wherein the middle part of the coupling body is provided with the threading device mounting hole, two ends of the threading device mounting hole are respectively communicated with a first threading channel and a second threading channel, and both the first threading channel and the second threading channel axially penetrate through the interior of the coupling body and lead to the exterior of two ends of the coupling body; the periphery of two ends of the joint body is respectively provided with a first connecting structure and a second connecting structure; and the joint body is respectively and transversely provided with a wiring hole, a selective firing switch and an access hole of the detonator, the wiring hole is communicated with the first threading channel, and the selective firing switch and the access hole of the detonator are communicated with the second threading channel. This patent can greatly reduced perforating gun's use cost and maintenance cost, shortens the time of connecting and dismantling the rifle and connect to reduce and increase the risk that the instrument cluster meets and hinders and meet the card in the pit.
The patent CN202022317871.X discloses a line-passing sealing plug for a perforating gun, wherein the perforating gun is divided into a plurality of sections, all the sections of perforating guns are connected through connectors, and the line-passing sealing plug is arranged in a gun body between the connectors and the perforating guns; the wire passing sealing plug comprises a sealing plug body, an insulating sleeve, a binding post, a screw plug and a sealing ring. The insulation sleeve and the binding post are matched to replace a conventional sealing plug, the insulation sleeve is made of PEEK material with high insulation performance and is connected with the sealing plug body through threads, and the insulation performance of the wire passing sealing plug is guaranteed; the sealing plug body and the insulating sleeve as well as the insulating sleeve and the wiring terminal are bonded by adopting the sealant, so that the problem of water leakage of the perforating gun is fundamentally solved; meanwhile, the ignition cable is directly welded on the wiring terminal, so that the contact strength of the ignition cable and the wiring terminal is greatly increased, and the phenomenon of breakage of the ignition cable is avoided.
Disclosure of Invention
It is an object of the present invention to overcome the disadvantages of the prior art and to provide a contact pin powered perforating gun. The perforating gun string connector is fixed between every two perforating gun outer tubes, the two ends of the perforating gun string connector are respectively connected with the perforating gun outer tubes, the supporting disc is fixed on the perforating gun outer tubes, and the special line passing device and the line passing connector are arranged. The technical problems of low indirect wiring efficiency and limited wiring operation space of the perforating gun are solved.
The purpose of the invention is realized by the following technical scheme:
a contact pin powered perforating gun comprising a perforating gun outer tube, a perforating gun tandem connector and a support disk, wherein:
the perforating gun serial connecting head is arranged between every two perforating gun outer pipes, and two ends of the perforating gun serial connecting head are respectively connected with the perforating gun outer pipes;
the support disc is fixedly arranged on the outer tube of the perforating gun and is positioned on the connecting end surface between the outer tube of the perforating gun and the serial connecting head of the perforating gun;
a threading device is arranged in the perforating gun string connector;
and a wire passing connector is arranged between the wire passing device and the supporting disk.
Optionally or preferably, both ends of the perforating gun outer tube are provided with internal threads, and both ends of the perforating gun serial connector are provided with external threads matched with the perforating gun outer tube;
and an anti-back screw and a first O-shaped ring are also arranged between the perforating gun outer tube and the perforating gun serial connecting head.
Optionally or preferably, the perforating gun serial connection head is of a circular tube structure, the inner diameters of two ends are large, and the inner diameter of the middle part is small.
Optionally or preferably, the wire passing device is a bidirectional pressure-bearing wire passing device;
the wire passing device comprises a needle inserting cylinder, a conductive plug, a lower contact pin and an upper contact pin;
the needle inserting cylinder is of a circular tube structure, and a conductive plug, a lining, an O-shaped ring II, a pressure spring I, a pressure spring II and a check ring I are arranged in the needle inserting cylinder.
Alternatively or preferably, the wire passing joint is arranged on the support disc.
Optionally or preferably, the wire passing connector comprises an insulating sleeve, a conductive core rod, a second retainer ring, a first heat-shrinkable tube, a lead and a second heat-shrinkable tube.
Optionally or preferably, the outer tube of the perforating gun is provided with two spring leaves close to the support plate.
Based on the technical scheme, the following technical effects can be generated:
the invention provides a contact pin electric-contact type perforating gun which is suitable for connection among multi-stage perforating guns. The beneficial effects of the invention include:
(1) the invention ensures that the outer tubes of each section of perforating gun are convenient to install, simplifies the wiring process of the wires between the perforating guns and is convenient to adjust;
(2) the components of the threading device, the supporting disk, the threading connector and the like are all cylindrical structures, can freely rotate at the serial connection head of the perforating gun, and cannot cause wire stranding during underground operation;
(3) all parts of the invention are made of pressure-resistant and high-temperature-resistant materials, and can adapt to the underground working environment;
(4) the connection among all parts is reliable, and the existence of the anti-withdrawal screw and the O-shaped ring ensures the connection reliability and the waterproof sealing performance of the invention;
(5) the two ends of the wire passing device are provided with the conductive contact pins, so that the wire passing device can be ensured to be in close contact with the conductive core rod on the support disc inside the perforating gun, and the electric connection effect is stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view (cross-sectional view) of the present invention;
FIG. 2 is a schematic structural view (cross-sectional view) of the wire passing device of the present invention;
FIG. 3 is a schematic structural view (cross-sectional view) of a wire crossover fitting of the present invention;
the reference numbers in the figures are:
the method comprises the following steps of 1-perforating gun outer tube, 2-perforating gun serial coupling head, 3-wire passing device, 4-supporting disc, 5-wire passing joint, 6-anti-back screw, 7-O-shaped ring I, 8-spring piece, 301-needle inserting cylinder, 302-conductive plug, 303-lower contact pin, 304-upper contact pin, 305-bushing, 306-O-shaped ring II, 307-O-shaped ring III, 308-pressure spring I, 309-pressure spring II, 310-check ring I, 501-insulating sleeve, 502-conductive core rod, 503-check ring II, 504-heat shrink tube I, 505-conducting wire and 506-heat shrink tube II.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1-3:
the embodiment provides a contact pin electricity-contact type perforating gun, which comprises a perforating gun outer tube 1, a perforating gun serial coupling head 2 and a supporting plate 4, wherein:
the perforating gun serial connecting head 2 is arranged between every two perforating gun outer tubes 1, and two ends of the perforating gun serial connecting head are respectively connected with the perforating gun outer tubes 1;
the support disc 4 is fixedly arranged on the outer tube 1 of the perforating gun and is positioned on the connecting end surface between the outer tube 1 of the perforating gun and the perforating gun serial connecting head 2;
a threading device 3 is arranged in the perforating gun serial connection head 2;
and a wire passing joint 5 is arranged between the wire passing device 3 and the supporting disc 4.
In the embodiment, internal threads are arranged at two ends of the perforating gun outer tube 1, and external threads matched with the perforating gun outer tube 1 are arranged at two ends of the perforating gun serial connector 2; and an anti-back screw 6 and an O-shaped ring I7 are also arranged between the perforating gun outer tube 1 and the perforating gun serial connecting head 2.
In this embodiment, the perforating gun string connector 2 is a circular tube structure, and has large inner diameters at two ends and small inner diameter in the middle.
In this embodiment, the wire guide 3 is a bidirectional pressure-bearing wire guide, the wire guide 3 includes a pin barrel 301, a conductive plug 302, a lower contact pin 303 and an upper contact pin 304, the pin barrel 301 is a circular tube structure, the conductive plug 302, a bushing 305, a second O-ring 306, a first pressure spring 308, a second pressure spring 309 and a first retainer ring 310 are arranged in the pin barrel 301, the conductive plug 302 in the middle plays a role in sealing and conducting, and the pin barrel 301 outside has an insulating and pressure-bearing role.
In this embodiment, the wire passing connector 5 is fixed on the support plate 4 by a snap fit.
In this embodiment, the wire passing connector 5 includes an insulating sleeve 501, a conductive core rod 502, a second retainer ring 503, a first heat shrinkable tube 504, a conducting wire 505, and a second heat shrinkable tube 506.
In this embodiment, two spring strips 8 are further disposed on the outer tube 1 of the perforating gun near the support plate 4 for grounding signals.
The embodiment has the following advantages:
(1) the embodiment has the advantages that the installation of the outer pipe of each section of perforating gun is convenient, the wiring process of the conducting wires between perforating guns is simplified, and the adjustment is convenient;
(2) the line passing device, the supporting disc, the line passing connector and other components of the embodiment are of cylindrical structures, can rotate freely at the perforating gun serial connection head, and cannot cause stranded wires during underground operation.
Example 2:
this example differs from example 1 in that:
in this embodiment, the conductive plug 302 is a stepped cylindrical structure, a blind hole is formed in the center of the end face of the end with the larger diameter, a second pressure spring 309 is arranged in the blind hole, a plurality of second O-rings 306 are arranged on the cylindrical surface of the end with the smaller diameter, and a first pressure spring 308 is arranged on the end face of the end with the smaller diameter;
the lower contact pin 303 and the upper contact pin 304 are both cylindrical structures, and limit steps are arranged on the lower contact pin 303 and the upper contact pin;
one end of the lower contact pin 303 is inserted into the first pressure spring 308, the other end of the lower contact pin 303 is positioned outside the needle cylinder 301, and the lower contact pin 303 is limited to be ejected out of the needle cylinder 301 by a limit step on the lower contact pin 303;
one end of the upper contact pin 304 is inserted into the second pressure spring 309, and the other end of the upper contact pin 304 passes through the bushing 305 and the first retainer ring 310 and is positioned outside the pin barrel 301, and the upper contact pin 304 is limited to be ejected out of the pin barrel 301 by a limit step on the upper contact pin 304.
In the embodiment, the support disk 4 is made of metal, and the support disk 4 is fixed on the outer tube 1 of the perforating gun in a riveting or welding mode.
In this embodiment, the wire passing connector 5 is made of plastic, and the wire passing connector 5 is fixed on the support plate 4 through a buckle.
In this embodiment, the wire passing connector 5 includes an insulating sleeve 501, a conductive core rod 502, a second retainer ring 503, a first heat shrinkable tube 504, a lead wire 505, and a second heat shrinkable tube 506;
the conductive core rod 502 is a cylindrical structure and comprises a stepped shaft section and a tooth-shaped section;
the insulating sleeve 501 is arranged outside the stepped shaft section;
the first heat shrink tube 504 is arranged outside the tooth-shaped section;
the retainer ring 503 is arranged on the conductive core rod 502 and is positioned between the insulating sleeve 501 and the first heat-shrinkable tube 504;
one end of the lead 505 is connected with the conductive core rod 502, and the other end of the lead penetrates out of one end of the first heat-shrinkable tube 504, which is far away from the second retainer ring 503;
the second heat shrinkable tube 506 is arranged outside the first heat shrinkable tube 504.
The present embodiment has the following advantages:
(1) the embodiment has the advantages that the installation of the outer pipe of each section of perforating gun is convenient, the wiring process of the conducting wires between perforating guns is simplified, and the adjustment is convenient;
(2) the string passing device, the supporting disc, the string passing joint and other parts of the embodiment are all cylindrical structures, can freely rotate at the serial joint of the perforating gun, and cannot cause stranded wires during underground operation;
(3) the both ends of this embodiment thread passing device all are equipped with the contact pin with spring matched with, can guarantee its electrically conductive plug in close contact with at both ends, and the electric connection effect is stable.
Example 3:
this example differs from example 2 in that:
in this embodiment, the wire diameter of the second pressure spring 309 is greater than the wire diameter of the first pressure spring 308, and the outer diameter of the second pressure spring 309 is greater than the outer diameter of the first pressure spring 308;
the upper contact pin 304 has a diameter larger than the outer diameter of the lower contact pin 303;
the needle inserting cylinder 301 is made of a pressure-resistant and high-temperature-resistant material;
the first retainer ring 310 is a flattened steel wire retainer ring for holes.
In this embodiment, the support disk 4 is made of metal, and the support disk 4 is fixed on the outer tube 1 of the perforating gun in a riveting or welding manner.
In this embodiment, the wire passing connector 5 is made of plastic, and the wire passing connector 5 is fixed on the support disc 4 through a buckle.
In this embodiment, the conductive core rod 502 is a cylindrical structure, and includes a stepped shaft section and a tooth-shaped section;
a plurality of limiting grooves are formed in the tooth-shaped section;
the second retainer ring 503 is a split retainer ring;
a buckle structure is arranged on the insulating sleeve 501;
the second heat-shrinkable tube 506 wraps the first heat-shrinkable tube 504, the second retainer ring 503 and part of the insulating sleeve 501;
one end, far away from the second retainer ring 503, of the first heat shrink tube 504 is provided with a closing-in with a gradually reduced diameter, and the closing-in is located outside the second heat shrink tube 506.
The embodiment has the following advantages:
(1) the embodiment has the advantages that the installation of the outer tubes of each section of perforating gun is convenient, the wiring process of the wires between the perforating guns is simplified, and the adjustment is convenient;
(2) the string passing device, the supporting disc, the string passing joint and other parts of the embodiment are all cylindrical structures, can freely rotate at the serial joint of the perforating gun, and cannot cause stranded wires during underground operation;
(3) all parts of the embodiment are made of pressure-resistant and high-temperature-resistant materials, so that the device can adapt to the underground working environment;
(4) in the embodiment, all the components are reliably connected, and the existence of the anti-withdrawal screw and the O-shaped ring ensures the connection reliability and the waterproof sealing performance of the invention;
(5) the two ends of the wire passing device are provided with conductive contact pins, so that the wire passing device can be ensured to be in close contact with a conductive core rod on a support disc inside a perforating gun, and the electric connection effect is stable.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A contact pin electrically connected perforating gun, comprising: including perforating gun outer tube (1), perforating gun cluster coupling head (2) and supporting disk (4), wherein:
the perforating gun serial connecting head (2) is arranged between every two perforating gun outer tubes (1), and two ends of the perforating gun serial connecting head are respectively connected with the perforating gun outer tubes (1);
the support disc (4) is fixedly arranged on the outer tube (1) of the perforating gun and is positioned on the connecting end surface between the outer tube (1) of the perforating gun and the serial connecting head (2) of the perforating gun;
a threading device (3) is arranged in the perforating gun string connecting head (2);
a wire passing joint (5) is arranged between the wire passing device (3) and the supporting disc (4).
2. A contact pin powered perforating gun as claimed in claim 1, characterized in that: internal threads are arranged at two ends of the perforating gun outer tube (1), and external threads matched with the perforating gun outer tube (1) are arranged at two ends of the perforating gun serial connecting head (2); an anti-back screw (6) and an O-shaped ring I (7) are further arranged between the perforating gun outer tube (1) and the perforating gun serial connecting head (2).
3. A contact pin powered perforating gun as claimed in claim 1, characterized in that: the perforating gun serial connecting head (2) is of a circular tube structure, the inner diameters of two ends are large, and the inner diameter of the middle part is small.
4. A stylus powered perforating gun as claimed in claim 1, wherein: the wire passing device (3) is a bidirectional pressure-bearing wire passing device, the wire passing device (3) comprises a needle inserting cylinder (301), a conductive plug (302), a lower contact pin (303) and an upper contact pin (304), the needle inserting cylinder (301) is of a circular tube structure, and the conductive plug (302), a bushing (305), a second O-shaped ring (306), a first pressure spring (308), a second pressure spring (309) and a first retainer ring (310) are arranged in the needle inserting cylinder (301).
5. A contact pin powered perforating gun as claimed in claim 1, characterized in that: the wire passing joint (5) is arranged on the support disc (4).
6. A contact pin powered perforating gun as claimed in claim 1, characterized in that: the wire passing connector (5) comprises an insulating sleeve (501), a conductive core rod (502), a second retainer ring (503), a first heat-shrinkable tube (504), a lead (505) and a second heat-shrinkable tube (506).
7. A contact pin powered perforating gun as claimed in claim 1, characterized in that: two spring pieces (8) are further arranged on the outer tube (1) of the perforating gun, close to the support disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659476.0A CN115012885A (en) | 2022-06-13 | 2022-06-13 | Contact pin electric connection type perforating gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659476.0A CN115012885A (en) | 2022-06-13 | 2022-06-13 | Contact pin electric connection type perforating gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115012885A true CN115012885A (en) | 2022-09-06 |
Family
ID=83074760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210659476.0A Pending CN115012885A (en) | 2022-06-13 | 2022-06-13 | Contact pin electric connection type perforating gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115012885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328841A (en) * | 2023-12-01 | 2024-01-02 | 大庆金祥寓科技有限公司 | Quick connection environment-friendly negative pressure gun |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530500A (en) * | 2021-08-31 | 2021-10-22 | 成都若克菲斯科技有限公司 | Contact type perforating gun |
-
2022
- 2022-06-13 CN CN202210659476.0A patent/CN115012885A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530500A (en) * | 2021-08-31 | 2021-10-22 | 成都若克菲斯科技有限公司 | Contact type perforating gun |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328841A (en) * | 2023-12-01 | 2024-01-02 | 大庆金祥寓科技有限公司 | Quick connection environment-friendly negative pressure gun |
| CN117328841B (en) * | 2023-12-01 | 2024-02-13 | 大庆金祥寓科技有限公司 | Quick connection environment-friendly negative pressure gun |
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