Petroleum perforating bullet shell with limiting function

Abstract

The utility model discloses a petroleum perforating bullet shell with a limiting function, and particularly relates to the technical field of petroleum perforating bullet shells, the petroleum perforating bullet shell comprises a shell assembly, limiting and positioning assemblies are fixedly installed on the two sides of the shell assembly, and a line pressing assembly is fixedly installed at the top end of the shell assembly. According to the petroleum perforating bullet shell with the limiting function, a connecting convex strip fixedly installed on the outer side face of one perforating bullet shell can be clamped into a connecting vertical groove of another perforating bullet shell, the multiple perforating bullet shells needing to be transported can be stacked together through repeated operation, and the transportation efficiency can be improved; meanwhile, under the mutual exclusion effect of a first magnetic plate and a second magnetic plate, when the perforating bullet shell moves to the mounting position, the perforating bullet shell can just align to limiting openings formed in the inner walls of the positioning vertical grooves in the two sides of the perforating gun mounting opening, at the moment, limiting protruding blocks can directly enter the limiting openings, and therefore automatic limiting of the perforating bullet shell can be completed; installation personnel do not need to carry out manual positioning and fixing operation, and the installation efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of oil perforation projectile casing technology, specifically an oil perforation projectile casing with a limiting function. Background Technology

[0002] Oil perforation projectiles are pyrotechnic devices used during perforation to penetrate casing, cement sheath, and formation. Their function is to penetrate the casing and cement sheath of the target formation, creating an effective flow channel between the target formation and the wellbore, ensuring the oil and gas well achieves its intended production capacity. The projectile casing is a crucial component, typically made of metal, and its design and manufacturing process significantly influence its performance.

[0003] For example, Chinese patent application number 202222620394.3 proposes a novel oil perforation cartridge case, comprising an outer shell body and an anti-jamming component. The outer wall of the outer shell body has pressure-bearing buffer components on both the left and right sides, each including a pressure-bearing groove and a buffer spring. The buffer spring is located inside the pressure-bearing groove, and the anti-jamming component is located outside the pressure-bearing groove. Compared to existing oil perforation cartridge cases, this novel oil perforation cartridge case features an adjustable inclined panel, which allows for fine-tuning of the position during fixing of the cartridge case to the perforation gun to prevent jamming and avoid affecting installation efficiency. A threaded rotating protective component can hold the lower end of the shaped charge liner in place, preventing it from falling off during transport and affecting the perforation effect. A sliding locking block that can be slidably connected and fixed can restrict the position of the detonator, preventing displacement of the detonation position and affecting the detonation effect.

[0004] However, the oil perforation projectile casing still has some shortcomings in actual use. For example, since the head and body of the perforation projectile contain explosives and other substances, and the casing is irregularly shaped and cannot be stacked, they will collide due to rolling during transportation, making transportation and handling inconvenient. At the same time, it lacks the necessary limiting and positioning structures, making it inconvenient to position and limit the outer casing during the installation of the perforation gun, thus affecting the installation efficiency of the perforation projectile and causing considerable inconvenience. Utility Model Content

[0005] The purpose of this invention is to provide an oil perforation shell with a limiting function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil perforation shell with a limiting function, comprising an outer shell assembly, limiting positioning components fixedly installed on both sides of the outer shell assembly, and a pressure wire assembly fixedly installed on the top of the outer shell assembly;

[0007] The outer casing assembly includes a perforated projectile casing, a docking vertical plate is fixedly installed on the front of the perforated projectile casing, a connecting vertical groove is opened on the front of the docking vertical plate, and a connecting protrusion is fixedly installed on the back of the perforated projectile casing.

[0008] The positioning and limiting assembly includes a positioning vertical plate. An inner groove is formed at the bottom of the plate body. A first magnetic plate is fixedly installed on the back of the inner groove. A second magnetic plate is slidably installed in the inner groove. A limiting protrusion is movably inserted into the bottom front of the positioning vertical plate. The limiting protrusion is fixedly installed on the front of the second magnetic plate. A pressing groove is formed at the bottom edge of the front of the positioning vertical plate. A pressing plate is fixedly installed on the bottom surface of the second magnetic plate.

[0009] Preferably, the wire pressing assembly includes a mounting plate, with a wire passage opening in the center of the top surface of the mounting plate and a wire pressing groove on one side of the top surface of the mounting plate.

[0010] Preferably, an arch frame is fixedly installed inside the pressure groove, and a threaded rod is threadedly inserted into the middle of the top surface of the arch frame.

[0011] Preferably, a pressure plate is slidably installed between the vertical portions on both sides of the arch frame, and the bottom end of the threaded rod is rotatably connected to the top surface of the pressure plate.

[0012] Preferably, the mounting plate is fixedly mounted on the top surface of the perforated projectile casing, and an detonation port is provided at the center of the top surface of the perforated projectile casing, with the wire passage located directly above the detonation port.

[0013] Preferably, the two positioning vertical plates are fixedly installed on both sides of the shell of the perforated projectile, and are arranged symmetrically.

[0014] Preferably, the pressing plate is located in the pressing groove, and the first magnetic plate and the second magnetic plate are arranged opposite each other with the same poles and mutually exclusive.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This oil perforating shell casing with a limiting function can engage the connecting protrusion fixed on the outer side of one perforating shell casing with the connecting vertical groove of another perforating shell casing. By repeating the operation, multiple perforating shell casings that need to be transported can be quickly spliced ​​together, thus stacking multiple perforating shell casings together and avoiding collisions during transportation, thereby improving transportation efficiency. At the same time, under the mutual repulsion of the first and second magnetic plates, the second magnetic plate will drive the limiting protrusion to extend towards the outer side of the positioning vertical plate. Thus, when the perforating shell casing moves to the installation position, the perforating shell casing will be aligned with the limiting port opened on the inner wall of the positioning vertical groove on both sides of the perforating gun installation port. At this time, the limiting protrusion will directly enter the limiting port, thereby completing the automatic limiting of the perforating shell casing. No manual positioning and fixing operations are required from the installer, resulting in higher installation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the outer shell assembly of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the limiting and positioning component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the pressure wire assembly of this utility model.

[0021] In the diagram: 1. Outer shell assembly; 101. Perforated projectile outer shell; 102. Docking vertical plate; 103. Connecting vertical groove; 104. Connecting protrusion; 105. Detonation port; 2. Limiting and positioning assembly; 201. Positioning vertical plate; 202. Inner groove; 203. Magnetic plate No. 1; 204. Magnetic plate No. 2; 205. Limiting protrusion; 206. Pressing groove; 207. Pressing plate; 3. Wire pressing assembly; 301. Mounting horizontal plate; 302. Wire passage; 303. Wire pressing groove; 304. Arch frame; 305. Threaded rod; 306. Wire pressing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4As shown, this utility model provides a technical solution: including a shell assembly 1, with limiting and positioning components 2 fixedly installed on both sides of the shell assembly 1, and a pressure wire assembly 3 fixedly installed on the top of the shell assembly 1;

[0024] The outer casing assembly 1 includes a perforating projectile outer casing 101. A docking vertical plate 102 is fixedly installed on the front side of the perforating projectile outer casing 101. A connecting vertical groove 103 is opened on the front side of the docking vertical plate 102. A connecting protrusion 104 is fixedly installed on the back side of the perforating projectile outer casing 101.

[0025] The positioning and limiting assembly 2 includes a positioning vertical plate 201. Two positioning vertical plates 201 are fixedly installed on both sides of the shell of the firing cartridge 101 and are arranged symmetrically. An inner groove 202 is provided at the bottom of the plate body of the positioning vertical plate 201. A first magnetic plate 203 is fixedly installed on the back of the inner groove 202. A second magnetic plate 204 is slidably installed in the inner groove 202. A limiting protrusion 205 is movably inserted into the bottom of the front of the positioning vertical plate 201. The limiting protrusion 205 is fixedly installed on the front of the second magnetic plate 204. A pressing groove 206 is provided at the bottom edge of the front of the positioning vertical plate 201. A pressing plate 207 is fixedly installed on the bottom surface of the second magnetic plate 204. The movement of the second magnetic plate 204 can be controlled by the pressing plate 207, thereby controlling whether the pressing plate 207 protrudes from the front of the positioning vertical plate 201.

[0026] In this embodiment, the wire pressing assembly 3 includes a mounting plate 301, a wire passage 302 is provided in the middle of the top surface of the mounting plate 301, and a wire pressing groove 303 is provided on one side of the top surface of the mounting plate 301.

[0027] An arch frame 304 is fixedly installed inside the pressure groove 303. A threaded rod 305 is threadedly inserted into the middle of the top surface of the arch frame 304. A pressure plate 306 is slidably installed between the vertical parts on both sides of the arch frame 304. The bottom end of the threaded rod 305 is rotatably connected to the top surface of the pressure plate 306. The mounting plate 301 is fixedly installed on the top surface of the perforated projectile casing 101. An detonation port 105 is opened at the center of the top surface of the perforated projectile casing 101. The wire passage 302 is located directly above the detonation port 105.

[0028] The pressing plate 207 is located in the pressing groove 206. The first magnetic plate 203 and the second magnetic plate 204 are arranged opposite each other with the same poles and mutually repulsive. Under the mutual repulsion of the first magnetic plate 203 and the second magnetic plate 204, the second magnetic plate 204 will drive the limiting protrusion 205 to protrude towards the outer side of the positioning vertical plate 201. Thus, when the perforating bullet shell 101 moves to the installation position, the perforating bullet shell 101 will be aligned with the limiting port opened on the inner wall of the positioning vertical groove on both sides of the perforating gun installation port. At this time, the limiting protrusion 205 will directly enter the limiting port, thereby completing the automatic limiting of the perforating bullet shell 101. There is no need for the installer to perform manual positioning and fixing operations, and the installation efficiency is higher.

[0029] In use, the connecting protrusion 104 fixedly installed on the outer side of one perforated shell 101 can be snapped into the connecting vertical groove 103 of another perforated shell 101. By repeating the operation, multiple perforated shells 101 that need to be transported can be quickly spliced ​​together, so that multiple perforated shells 101 can be stacked together, thereby avoiding collisions during transportation and facilitating centralized transportation, thus improving transportation efficiency.

[0030] Simultaneously, it facilitates the installation of the perforating cartridge case 101 inside the perforating gun. Specifically, by aligning the positioning vertical plate 201 with the positioning vertical grooves on both sides of the perforating gun's mounting opening, the perforating cartridge case 101 can be easily and smoothly pushed into the perforating gun. This avoids the perforating cartridge case 101 from deflecting and jamming during installation, effectively providing guidance and positioning. After being pushed into the installation position, under the mutual repulsion of the first magnetic plate 203 and the second magnetic plate 204, the second magnetic plate 204 will drive the limiting protrusion 205 to extend towards the outer side of the positioning vertical plate 201. Thus, when the perforating cartridge case 101 moves to the installation position, the perforating cartridge case 101... The 1 will be aligned with the limiting openings on the inner walls of the positioning vertical grooves on both sides of the perforation gun mounting port. At this time, the limiting protrusion 205 will directly enter the limiting opening, thereby completing the automatic limiting of the perforation cartridge case 101. No manual positioning and fixing operation is required by the installer, which improves the installation efficiency. Furthermore, the wire pressing assembly 3 can press down the fuse body to prevent the fuse from being pulled out of the detonation port 105. Specifically, manually rotating the threaded rod 305 can drive the wire pressing plate 306 to descend and press down the fuse body, thereby preventing the other end of the fuse from being pulled out of the detonation port 105 due to external factors.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casing for oil perforating charges with a limiting function, comprising an outer shell assembly (1), characterized in that Two sides of the shell assembly (1) are fixedly installed with limiting positioning assemblies (2), and a top end of the shell assembly (1) is fixedly installed with a wire pressing assembly (3); The shell assembly (1) comprises a perforating bullet shell (101), the front surface of the perforating bullet shell (101) is fixedly installed with a butt joint vertical plate (102), the front surface of the butt joint vertical plate (102) is provided with a connecting vertical groove (103), and the back surface of the perforating bullet shell (101) is fixedly installed with a connecting convex strip (104); The limiting positioning assembly (2) comprises a positioning vertical plate (201), the inner bottom of the plate body of the positioning vertical plate (201) is provided with an inner groove (202), the inner back surface of the inner groove (202) is fixedly installed with a No. 1 magnetic plate (203), the inner groove (202) is slidingly installed with a No. 2 magnetic plate (204), the front bottom of the positioning vertical plate (201) is movably inserted with a limiting convex block (205), the limiting convex block (205) is fixedly installed on the front surface of the No. 2 magnetic plate (204), the front bottom edge of the positioning vertical plate (201) is provided with a pressing groove (206), and the bottom surface of the No. 2 magnetic plate (204) is fixedly installed with a pressing plate (207).

2. The casing for a petroleum perforator with a limiting function according to claim 1, characterized in that, The wire pressing assembly (3) comprises an installation horizontal plate (301), the top surface of the installation horizontal plate (301) is provided with a wire passing port (302) in the middle, and the top surface of the installation horizontal plate (301) is provided with a wire pressing groove (303) on one side.

3. The casing for a petroleum perforator with a limiting function according to claim 2, characterized in that, The wire pressing groove (303) is fixedly installed with an arch frame (304), and the top surface of the arch frame (304) is threadedly inserted with a threaded rod (305) in the middle.

4. The casing for a petroleum perforator with a limiting function according to claim 3, characterized in that, The wire pressing plate (306) is slidingly installed between the vertical parts of the two sides of the arch frame (304), and the bottom end of the threaded rod (305) is rotatably connected with the top surface of the wire pressing plate (306).

5. The casing for a petroleum perforator with a limiting function according to claim 2, characterized in that, The installation horizontal plate (301) is fixedly installed on the top surface of the perforating bullet shell (101), the top surface of the perforating bullet shell (101) is provided with an explosion port (105) at the center, and the wire passing port (302) is located directly above the explosion port (105).

6. The casing for a petroleum perforator with a limiting function according to claim 1, characterized in that, The two positioning vertical plates (201) are respectively fixedly installed on the two sides of the shell body of the perforating bullet shell (101) and are symmetrically arranged.

7. The casing for a petroleum perforator with a limiting function according to claim 1, characterized in that, The pressing plate (207) is located in the pressing groove (206), and the opposite surfaces of the No. 1 magnetic plate (203) and the No. 2 magnetic plate (204) are arranged in the same polarity repulsion.

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