Clustering, selecting and emitting hole drilling device with rapid assembling function

Abstract

The utility model discloses a clustering selective perforating device with a quick assembly function, which belongs to the technical field of perforators, aims at solving the problem that a plurality of perforators are relatively complicated to assemble in series, and comprises a gun body, a bullet rack pipe is mounted on the inner surface of the gun body, detonating cords are arranged on two sides of the bullet rack pipe, and a connecting mechanism is arranged in one side of the gun body; under the action of the connecting mechanism, the arranged connecting block is matched with the external threads and the internal threads, a plurality of gun bodies can be conveniently and rapidly connected, the flow of assembling the perforators by workers is simplified, and under the action of the detonating assembly, when the perforators are connected in series, a detonating cord pushes the conductive needle to move, so that the perforating efficiency is improved. And the conductive needle is in contact with the conductive barrel, so that detonating cords in a plurality of gun bodies are connected in series, the operation is simple, and the problem that a plurality of perforators are relatively complicated when being connected in series and assembled is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of perforators, and in particular relates to a clustering selective perforator with a rapid assembly function. Background Art

[0002] In the oil industry, perforation completion is the most widely used completion method both at home and abroad. Perforation is known as the "finishing touch" in the process of oil and gas exploration and development. It is a key link in oil testing operations and directly affects the production capacity of oil and gas wells. The perforating gun is a combination of equipment and accessories used for perforating oil and gas wells. Multiple perforating guns are connected in series and then lowered into the oil well to explosively perforate the formation. Currently, the most widely used is the focused energy perforating gun, which uses the energy-gathering phenomenon of the explosion to generate a focused energy jet to perforate the formation.

[0003] In the prior art, patent publication number CN216922093U discloses a perforating gun for combined shooting and mining. This patent incorporates a shock-absorbing device to effectively attenuate the impact force generated by radial and axial vibrations during perforation, thereby reducing the impact of this force on the pump. A blind hole concentric with the perforating charge inside the gun body is provided on the outer edge of the gun body, facilitating penetration of the charge through the gun body and reducing energy loss. The burrs and burrs left in the blind hole after the gun body is penetrated prevent protrusion from the outer wall of the gun body, preventing scraping of the wellbore casing during subsequent tripping of the tubing string. However, in actual use, this invention still suffers from the following deficiencies: Multiple perforating guns typically require serial connection during perforating assembly. To detonate the perforating charge, the detonating cords in two adjacent perforating guns must be connected. This connection is typically done manually using wires, which is a complex process that increases labor intensity and reduces perforating gun assembly efficiency.

[0004] Therefore, a cluster-selective perforator with a rapid assembly function is needed to solve the problem of complicated serial assembly of multiple perforators in the prior art. Utility Model Content

[0005] The purpose of the present invention is to provide a clustering and selective firing perforator with a quick assembly function, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a cluster selective perforator with a quick assembly function, comprising a gun body, a bomb rack tube mounted on the inner surface of the gun body, detonating cords disposed on both sides of the bomb rack tube, and a connecting mechanism disposed inside one side of the gun body;

[0007] The connecting mechanism includes a connecting block, the outer surface of one side of the connecting block is fixedly connected to one side of the inner surface of the gun body, the other side of the connecting block extends to the outside of the gun body, a boss is fastened at the center of the outer surface of the connecting block, an external thread is provided on the outer surface of the connecting block located outside the gun body, a small hole is provided inside the connecting block, a movable groove connected to the small hole is provided inside the connecting block, and a detonating assembly is provided inside the connecting block.

[0008] It should be noted in the scheme that the detonation assembly includes an electrical connector, the outer surface of the electrical connector is fixedly connected to the inner surface of the small hole, a cavity is opened inside the electrical connector, a conductive tube is fixedly connected to the inner surface of the cavity, a mounting groove is opened inside the conductive tube, an insulating sleeve is fixedly connected to the inner surface of the mounting groove, an outer wall on one side of the insulating sleeve slides through an outer wall on one side of the electrical connector, the inner surface of the mounting groove is slidably connected to a limit plate, a conductive needle is inserted through the center of the side wall of the limit plate, the outer surface of the conductive needle is slidably connected to the inner surface of the insulating sleeve and one outer wall extends to the inside of the movable groove, and a spring is provided on the outer surface of the other side of the conductive needle.

[0009] It is further worth mentioning that the inner surface of the other side of the gun body is provided with an internal thread that matches the external thread, and the outer surface of the bullet rack tube is provided with a plurality of evenly arranged bullet holes.

[0010] It should be further explained that two first sealing rings distributed in parallel are tightly sleeved on the outer surface of the electrical connector, and two second sealing rings distributed in parallel are tightly sleeved on the outer surface of the conductive tube.

[0011] As a preferred embodiment, the small hole, the movable groove, the cavity and the installation groove are coaxial, and the small hole and the cavity are both provided with grooves that match the first sealing ring and the second sealing ring.

[0012] As a preferred embodiment, the outer wall of one side of the conductive tube passes through the outer wall of one side of the electrical connector and is connected to a nearby detonating wire, the outer wall of one side of the spring is fixedly connected to the inner side wall of the mounting groove, and the outer wall of the other side of the spring is fixedly connected to the outer wall of one side of the limit plate.

[0013] Compared with the prior art, the cluster-selective perforator with a quick assembly function provided by the present invention has at least the following beneficial effects:

[0014] (1) Through the function of the connecting mechanism, the connecting block provided facilitates the quick connection of multiple gun bodies under the cooperation of the external thread and the internal thread, simplifies the process of workers assembling the perforators, is simple to operate, and can realize the quick assembly of multiple perforators.

[0015] (2) through the action of the detonation assembly, when a plurality of perforators are connected in series, the detonation line pushes the conductive needle to move, so that the conductive needle is in contact with the conductive cylinder, and then the detonation lines in the plurality of gun bodies are connected in series, without manually connecting the plurality of detonation lines with a lead wire, thereby effectively avoiding the problem that the plurality of perforators are connected in series and assembled. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a connecting mechanism structure schematic view of the utility model;

[0018] Figure 3 It is a gun body front view sectional structure schematic view of the utility model;

[0019] Figure 4 It is a structure schematic view of the utility model after two gun bodies are connected.

[0020] In the drawing: 1, gun body; 2, cartridge holder tube; 3, detonation line; 4, connecting mechanism; 41, connecting block; 42, boss; 43, external thread; 44, small hole; 45, movable slot; 46, detonation assembly; 461, electric connector; 462, cavity; 463, conductive cylinder; 464, mounting groove; 465, insulating sleeve; 466, limiting plate; 467, conductive needle; 468, spring; 5, internal thread; 6, projectile hole; 7, first sealing ring; 8, second sealing ring. DETAILED DESCRIPTION

[0021] The utility model is further described below in combination with examples.

[0022] Please refer to Figure 1-Figure 4 The utility model provides a cluster selection launch perforator with quick assembly function, including gun body 1, the inside surface of gun body 1 is installed with cartridge holder tube 2, and detonation line 3 is arranged on both sides of cartridge holder tube 2, and the inside of one side of gun body 1 is provided with connecting mechanism 4;

[0023] Connecting mechanism 4 includes connecting block 41, one side of the outer surface of connecting block 41 is fixedly connected with one side of the inner surface of gun body 1, the other side of connecting block 41 extends to the outside of gun body 1, the outer surface center of connecting block 41 is tightly sleeved with boss 42, the outer surface of connecting block 41 located at the outside of gun body 1 is provided with external thread 43, the inside of connecting block 41 is provided with small hole 44, the inside of connecting block 41 is provided with movable slot 45 in communication with small hole 44, and the inside of connecting block 41 is provided with detonation assembly 46.

[0024] Further as Figure 1 And Figure 2As shown, worth specifically explained is that the detonating assembly 46 comprises an electric connector 461, the outer surface of the electric connector 461 is fixedly connected with the inner surface of the small hole 44, a cavity 462 is arranged in the electric connector 461, the inner surface of the cavity 462 is fixedly connected with a conductive cylinder 463, an installation groove 464 is arranged in the conductive cylinder 463, the inner surface of the installation groove 464 is fixedly connected with an insulating sleeve 465, one side outer wall of the insulating sleeve 465 slides through one side outer wall of the electric connector 461, the inner surface of the installation groove 464 is slidably connected with a limiting plate 466, the side wall of the limiting plate 466 is centrally penetrated and arranged with a conductive pin 467, the outer surface of the conductive pin 467 is slidably connected with the inner surface of the insulating sleeve 465 and one side outer wall of the conductive pin 467 extends to the inside of the movable slot 45, the other side outer wall of the conductive pin 467 is sleeved with a spring 468.

[0025] Further as Figure 3 shown, worth specifically explained is that the other side inner surface of the barrel 1 is arranged with an inner thread 5 matched with the outer thread 43, the outer surface of the cartridge tube 2 is arranged with a plurality of uniformly arranged bullet holes 6.

[0026] Further as Figure 2 shown, worth specifically explained is that the outer surface of the electric connector 461 is tightly sleeved with two first sealing rings 7 distributed in parallel, the outer surface of the conductive cylinder 463 is tightly sleeved with two second sealing rings 8 distributed in parallel.

[0027] Further as Figure 2 shown, worth specifically explained is that the small hole 44, the movable slot 45, the cavity 462 and the installation groove 464 are coaxial, ensuring that the conductive pin 467 and the detonating wire 3 are located on the same axis, recesses matched with the first sealing ring 7 and the second sealing ring 8 are arranged in the inside of the small hole 44 and the cavity 462, improving the sealing performance of the inside of the connecting block 41.

[0028] Further as Figure 1 , Figure 2 and Figure 3 shown, worth specifically explained is that one side outer wall of the conductive cylinder 463 penetrates one side outer wall of the electric connector 461 and is connected with the detonating wire 3 close to it, one side outer wall of the spring 468 is fixedly connected with one side wall in the inside of the installation groove 464, the other side outer wall of the spring 468 is fixedly connected with one side outer wall of the limiting plate 466, when a plurality of barrels 1 are connected, the conductive pin 467 is pushed to contact the conductive cylinder 463.

[0029] In summary: when the device is in use, the two gun bodies 1 that need to be assembled and connected are first placed on the same axis, and with the cooperation of the external thread 43 and the internal thread 5, one of the gun bodies 1 is connected to the connecting block 41 on the other gun body 1. During the connection, a detonating wire 3 on the bomb rack tube 2 inside one of the gun bodies 1 pushes the conductive needle 467 to move toward the conductive tube 463. When the two gun bodies 1 are connected, the outer wall of one side of the conductive needle 467 is fitted with the conductive tube 463. At this time, the detonating wires 3 inside the two gun bodies 1 are connected in series through the conductive tube 463 and the conductive needle 467, ensuring the normal use of the perforator. The provided electrical connector 461 avoids the staff from using wires to connect the detonating wires 3 in series, simplifies the process of the staff assembling the perforator, is simple to operate, can realize the rapid assembly of multiple perforators, and effectively avoids the more complicated problems when multiple perforators are assembled in series.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cluster-selective perforator with a quick assembly function, comprising a gun body (1), characterized in that: A bomb rack tube (2) is installed on the inner surface of the gun body (1), detonating wires (3) are arranged on both sides of the bomb rack tube (2), and a connecting mechanism (4) is arranged inside one side of the gun body (1); The connecting mechanism (4) comprises a connecting block (41), the outer surface of one side of the connecting block (41) is fixedly connected to the inner surface of the gun body (1), the other side of the connecting block (41) extends to the outside of the gun body (1), a boss (42) is fastened and sleeved at the center of the outer surface of the connecting block (41), an outer surface of the connecting block (41) located outside the gun body (1) is provided with an external thread (43), a small hole (44) is provided inside the connecting block (41), a movable groove (45) connected to the small hole (44) is provided inside the connecting block (41), and a detonation assembly (46) is provided inside the connecting block (41).

2. The cluster-selective perforator with a rapid assembly function according to claim 1, characterized in that: The detonation assembly (46) includes an electrical connector (461), the outer surface of the electrical connector (461) is fixedly connected to the inner surface of the small hole (44), a cavity (462) is provided inside the electrical connector (461), a conductive tube (463) is fixedly connected to the inner surface of the cavity (462), a mounting groove (464) is provided inside the conductive tube (463), an insulating sleeve (465) is fixedly connected to the inner surface of the mounting groove (464), an outer wall on one side of the insulating sleeve (465) slides through the outer wall on one side of the electrical connector (461), the inner surface of the mounting groove (464) is slidably connected to a limiting plate (466), a conductive needle (467) is inserted through the center of the side wall of the limiting plate (466), the outer surface of the conductive needle (467) is slidably connected to the inner surface of the insulating sleeve (465), and one outer wall extends to the inside of the movable groove (45), and the outer surface of the other side of the conductive needle (467) is sleeved with a spring (468).

3. The cluster-selective perforator with a rapid assembly function according to claim 2, characterized in that: The inner surface of the other side of the gun body (1) is provided with an inner thread (5) that matches the outer thread (43), and the outer surface of the bullet rack tube (2) is provided with a plurality of evenly arranged bullet holes (6).

4. The cluster-selective perforator with a rapid assembly function according to claim 3, characterized in that: The outer surface of the electrical connector (461) is tightly sleeved with two first sealing rings (7) distributed in parallel, and the outer surface of the conductive tube (463) is tightly sleeved with two second sealing rings (8) distributed in parallel.

5. The cluster-selective perforator with a rapid assembly function according to claim 4, characterized in that: The small hole (44), the movable groove (45), the cavity (462) and the installation groove (464) are coaxial, and the small hole (44) and the cavity (462) are both provided with grooves matching the first sealing ring (7) and the second sealing ring (8).

6. The cluster-selective perforator with a rapid assembly function according to claim 5, characterized in that: The outer wall of one side of the conductive tube (463) passes through the outer wall of one side of the electrical connector (461) and is connected to a nearby detonating wire (3); the outer wall of one side of the spring (468) is fixedly connected to the inner wall of one side of the mounting groove (464); and the outer wall of the other side of the spring (468) is fixedly connected to the outer wall of one side of the limiting plate (466).

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