CN111946304A - Detonating cord-free perforating gun for oil-gas well perforation - Google Patents
Detonating cord-free perforating gun for oil-gas well perforation Download PDFInfo
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- CN111946304A CN111946304A CN202010995598.8A CN202010995598A CN111946304A CN 111946304 A CN111946304 A CN 111946304A CN 202010995598 A CN202010995598 A CN 202010995598A CN 111946304 A CN111946304 A CN 111946304A
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- perforating
- detonator
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- free
- gun
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- 238000005192 partition Methods 0.000 claims abstract description 18
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002800 charge carrier Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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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
- E21B43/116—Gun or shaped-charge perforators
- E21B43/1185—Ignition systems
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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)
- Air Bags (AREA)
Abstract
The invention discloses a detonating cord-free perforating gun for oil-gas well perforation, relates to the technical field of perforating gun manufacturing, and solves the technical problems that the existing perforating gun is complex in structure and poor in perforating effect, and detonating cords have potential safety hazards. The detonating cord-free perforating gun for oil and gas well perforation comprises a contact pin (1), a partition plate joint (2), a gun barrel (3), a detonator (4), a perforating bullet frame (5) and a conductive rod (6). The invention can be used for exploding and shooting stratum in oil well development. The detonating cord-free perforating gun for oil-gas well perforation adopts detonating cord-free and joint-free design, has a simple structure, and is safer and more efficient.
Description
Technical Field
The invention relates to the technical field of perforating gun manufacturing, in particular to a detonating cord-free perforating gun for oil and gas well perforation.
Background
The perforating gun is an assembly of equipment and matched parts thereof for perforating an oil-gas well, a plurality of perforating guns are connected in series and then are put into an oil well to explode and shoot a stratum, a perforating gun barrel, a cartridge holder pipe and a connecting joint are included, a user needs to perform perforating and lead wire connection, add perforating bullets, detonating cords, detonators and a connecting and selecting switch on the perforating gun when using the perforating gun, the operation procedure is complicated, the installation of the perforating gun consumes long time, the production efficiency of construction in a slow-towing well is improved, and the fire line has potential safety hazards as the detonating cord.
Disclosure of Invention
The invention mainly aims to provide a detonating cord-free perforating gun for oil-gas well perforation, which adopts a detonating cord-free design, the whole system is connected by splicing and contacts, in the using process, a contact pin on a partition plate joint is directly contacted with a detonator to be used as a detonator trigger to detonate the detonator, so that a perforating bullet is shot, meanwhile, the detonator is also directly contacted with a conductive rod for conduction, the conductive rod transmits current to the next contact pin through a conductive sheet to detonate the detonator in the next section of perforating gun, and the technical problems of the existing perforating gun that the structure is complicated, the perforating effect is not good and the detonating cord has potential safety hazard are solved. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a detonating cord-free perforating gun for oil-gas well perforation, which comprises a contact pin, a partition plate joint, a gun barrel, a detonator, a perforating bullet frame and a conductive rod, wherein:
preferably, the partition joint, the detonator and the perforating bullet rack are sequentially arranged in the gun tube;
preferably, the contact pin is mounted on the partition joint; the detonator is arranged on the perforating bullet frame through a fixing hole arranged on the perforating bullet frame;
preferably, the conductive rod is arranged on the perforating charge carrier through a through hole on the perforating charge carrier;
preferably, one end of the conductive rod is in direct contact with the detonator, and the other end of the conductive rod is connected with the contact pin through a conductive sheet.
Optionally or preferably, one end of the gun barrel is provided with internal threads, the other end of the gun barrel is provided with external threads, and the detonating cord-free perforating guns for perforating the oil and gas wells are fixedly connected through the internal threads and the external threads.
Optionally or preferably, the charge carrier is further provided with at least 3 charge slots, and charges are installed in the charge slots.
Alternatively or preferably, the partition plate joint is arranged at the joint of the two gun barrels, one end of a contact pin arranged on the partition plate joint is contacted with the detonator below, and the other end of the contact pin is connected with a conductive rod arranged on the perforating charge rack above through a conductive sheet.
Optionally or preferably, the detonator adopts a high-resistance detonator, and the chip in the detonator is in direct contact with the conductive rod.
Based on the technical scheme, the following technical effects can be generated:
the detonating cord-free perforating gun for perforating the oil and gas well provided by the embodiment of the invention can be used for exploding and shooting off the stratum in oil well development. The invention relates to a detonating cord-free perforating gun for oil-gas well perforation, which adopts a detonating cord-free design, the whole system is connected by splicing and contact, in the using process, a contact pin on a partition plate joint is directly contacted with a detonator to be used as a detonator trigger to detonate the detonator, so that the perforating bullet is shot, simultaneously, the detonator is also directly contacted with a conductive rod for conduction, the conductive rod transmits current to the next contact pin through a conductive sheet to detonate the detonator in the next section of perforating gun, and the technical problems of complicated perforating effect of the existing perforating gun and potential safety hazard of the detonating cord are solved. The detonating cord-free perforating gun for oil-gas well perforation adopts detonating cord-free and joint-free design, has simple structure, extremely short perforating gun length, higher safety and efficiency and simple field operation.
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 drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view (semi-sectional view) of an embodiment of the present invention;
FIG. 3 is a schematic diagram of the internal structure of the embodiment of the present invention;
in the figure: 1. inserting a pin; 2. a bulkhead fitting; 3. a barrel; 4. a detonator; 5 a perforating charge carrier; 501. a perforating charge slot; 6. a conductive rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1-3:
the invention provides a detonating cord-free perforating gun for oil-gas well perforation, which comprises a contact pin 1, a partition plate joint 2, a gun barrel 3, a detonator 4, a perforating bullet frame 5 and a conductive rod 6, wherein:
the partition plate joint 2, the detonator 4 and the perforating bullet rack 5 are sequentially arranged in the gun barrel 3; the contact pin 1 is arranged on the partition plate joint 2;
the detonator 4 is arranged on the perforating charge frame 5 through a fixing hole arranged on the perforating charge frame 5; the conductive rod 6 is arranged on the perforating bullet frame 5 through a through hole on the perforating bullet frame 5;
one end of the conductive rod 6 is directly contacted with the detonator 4, and the other end is connected with the contact pin 1 through a conductive sheet.
As an alternative embodiment, one end of the gun barrel 3 is provided with internal threads, the other end of the gun barrel is provided with external threads, and a plurality of detonating cord-free perforating guns for oil and gas well perforation are fixedly connected through the internal threads and the external threads.
In an optional embodiment, the charge carrier 5 is further provided with at least 3 charge slots 501, and charges are installed in the charge slots 501.
In an alternative embodiment, the partition plate connector 2 is installed at the joint of two gun barrels 3, one end of a contact pin 1 installed on the partition plate connector 2 is in contact with a detonator 4 below, and the other end of the contact pin is connected with a conductive rod 6 installed on a perforating charge rack 5 above through a conductive sheet.
As an alternative embodiment, the detonator 4 adopts a high-resistance detonator, and a chip in the detonator 4 is in direct contact with the conductive rod 6.
In an alternative embodiment, the conductive sheet can be made of conventional metal sheet, and a suitable connector can be designed.
As an alternative embodiment, the detonator 4 is a selective detonator, the conductive rod 6 is contacted with a selective chip in the selective detonator assembly, and the other end of the conductive rod is contacted with the contact pin 1.
The invention relates to a detonating cord-free perforating gun for oil-gas well perforation, which comprises the following working processes: the method comprises the steps of sequentially connecting a plurality of detonating cord-free perforating guns for oil and gas well perforation, connecting the detonating switch with a contact pin 1 on the perforating gun at the top of an oil well, turning on the detonating switch, transmitting current to a detonator 4 through the contact pin 1, transmitting the current to the contact pin 1 of the next perforating gun through a conductive rod 6 by the detonator 4, simultaneously detonating the detonator 4, and ejecting perforating charges in a perforating charge rack 5.
Claims (5)
1. A detonating cord-free perforating gun for oil-gas well perforation comprises a contact pin (1), a partition plate joint (2), a gun barrel (3), a detonator (4), a perforating bullet frame (5) and a conductive rod (6), and is characterized in that the partition plate joint (2), the detonator (4) and the perforating bullet frame (5) are sequentially arranged in the gun barrel (3); the contact pin (1) is arranged on the partition plate joint (2); the detonator (4) is arranged on the perforating charge frame (5) through a fixing hole arranged on the perforating charge frame (5); the conductive rod (6) is arranged on the perforating bullet frame (5) through a through hole on the perforating bullet frame (5); one end of the conductive rod (6) is directly contacted with the detonator (4), and the other end of the conductive rod is connected with the contact pin (1) through a conductive sheet.
2. The detonating cord-free perforating gun for perforating oil and gas wells as claimed in claim 1, wherein: one end of the gun barrel (3) is provided with an internal thread, the other end of the gun barrel is provided with an external thread, and the detonating fuse-free perforating guns for perforating a plurality of oil and gas wells are fixedly connected through the internal thread and the external thread.
3. The detonating cord-free perforating gun for perforating oil and gas wells as claimed in claim 2, wherein: the perforating charge frame (5) is further provided with at least 3 perforating charge grooves (501), and perforating charges are installed in the perforating charge grooves (501).
4. The detonating cord-free perforating gun for perforating oil and gas wells as claimed in claim 3, wherein: the partition plate joint (2) is arranged at the joint of the two gun barrels (3), one end of a contact pin (1) arranged on the partition plate joint (2) is contacted with a detonator (4) below, and the other end of the contact pin is connected with a conductive rod (6) arranged on a perforating bullet rack (5) above through a conductive sheet.
5. The detonating cord-free perforating gun for perforating oil and gas wells as claimed in claim 4, wherein: the detonator (4) adopts a high-resistance detonator, and a chip in the detonator (4) is in direct contact with the conductive rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995598.8A CN111946304A (en) | 2020-09-21 | 2020-09-21 | Detonating cord-free perforating gun for oil-gas well perforation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995598.8A CN111946304A (en) | 2020-09-21 | 2020-09-21 | Detonating cord-free perforating gun for oil-gas well perforation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946304A true CN111946304A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995598.8A Pending CN111946304A (en) | 2020-09-21 | 2020-09-21 | Detonating cord-free perforating gun for oil-gas well perforation |
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| CN (1) | CN111946304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950615A (en) * | 2023-09-19 | 2023-10-27 | 成都若克石油技术开发有限公司 | Internal blind hole cluster type perforating gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950615A (en) * | 2023-09-19 | 2023-10-27 | 成都若克石油技术开发有限公司 | Internal blind hole cluster type perforating gun |
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Effective date of registration: 20210115 Address after: No.199 Huqiao Road, East Industrial District, Xindu District, Chengdu, Sichuan 610000 Applicant after: CHENGDU ROCK PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: No. 1204, 12th floor, building 2, No. 530, middle section of Tianfu Avenue, high tech Zone, Chengdu, Sichuan 610041 Applicant before: CHENGDU ROCK FAITHWELL TECHNOLOGY Co.,Ltd. |