Petroleum perforating bullet, petroleum perforating bullet wire ring riveting die and riveting process thereof

Abstract

The invention relates to the technical field of petroleum perforating bullets, in particular to a petroleum perforating bullet, a petroleum perforating bullet wire ring riveting mold and a riveting process thereof.The petroleum perforating bullet comprises the petroleum perforating bullet, a detonating groove is transversely formed in the top of a bullet body, and two fixing holes are vertically formed in one side of the detonating groove in the top end of the bullet body and used for installing a wire ring; the end of a screw ring is sleeved with the fixing hole, the screw ring is of a U-shaped structure, a riveting point used for bearing riveting force is arranged at the top of the elastic body, and the riveting point covers the partial area of the top of the elastic body and the partial area of the fixing hole. When the riveting point is subjected to riveting force, the fixing hole deforms to extrude the fixing wire ring; the invention further comprises a petroleum perforating bullet wire ring riveting pressing die which comprises a riveting point profiling piece connected with the riveting pressing end of a riveting pressing machine and a positioning plate used for limiting a petroleum perforating bullet. During riveting, the positioning plate is located under the riveting point profiling piece, and the positioning plate is arranged on the periphery of the petroleum perforating bullet in a sleeving mode. According to the invention, the technical problem of permanent fixation of the wire ring on the petroleum perforating bullet is solved by riveting the riveting points.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum perforating bullets, and in particular to a petroleum perforating bullet, a riveting die for a wire ring of a petroleum perforating bullet, and a riveting process thereof. Background Art

[0002] Oil perforating bullets are special ammunition used in oil and gas well drilling operations. Its main function is to drill holes at a specific depth in the oil and gas wells in order to establish oil and gas flow channels. The working principle is to use the energy generated by the explosion of the explosives in the bullet body to make the bullet penetrate the rocks and formations around the oil and gas wells, forming one or more small diameter channels. The formation of these channels is conducive to the exploitation of oil and gas resources and increases the output of oil and gas wells.

[0003] The petroleum perforating bullet is generally equipped with an annular wire ring, which can effectively disperse the stress generated during the shooting process, improve the mechanical properties of the shell, bullet and charge components, and avoid shell damage or failure during the explosion process. The wire ring can also keep the bullet in a stable assembly relationship during the penetration process, thereby improving the flight stability and accuracy of the perforating bullet.

[0004] In the prior art, the wire ring is usually installed separately on the bullet to reduce the manufacturing cost, and the installation method is generally to glue the wire ring and the bullet together with professional glue to fix the wire ring. However, the gluing method causes the perforating bullet to melt, crack, etc. due to temperature changes in an overheated or overcooled working environment. At this time, the firmness of the bonding point will be greatly reduced, thereby affecting the perforating work of the perforating bullet.

[0005] The Chinese patent with the name of "A bonding structure for perforating bullet pressure wire" and the publication number CN220302113U has been published. The patent includes a perforating shell and a pressure wire. A detonating cord groove is provided at the top center of the perforating shell, and a bonding groove is provided on the end surface of the top of the perforating shell, and the bonding groove is located on one side of the detonating cord groove. The bottom of the pressure wire extends into the bonding groove, and the pressure wire is bonded to the bonding groove with adhesive. The device changes from single-sided bonding to double-sided bonding, increases the bonding area of ​​the pressure wire, and strengthens the bonding strength between the pressure wire and the perforating bullet.

[0006] Although the device can improve the bonding strength and reduce the loosening of the wire ring, the adhesive bonding method will result in a weak connection between the wire ring and the bullet. After being stored for too long, the adhesive bonding area will corrode and become loose, and the adhesive will leak, affecting normal use. Summary of the invention

[0007] The purpose of the present application is to provide a petroleum perforating bullet, a petroleum perforating bullet wire ring riveting die and a riveting process thereof, which solves the technical problem of permanent fixation of the wire ring on the petroleum perforating bullet by riveting riveting points.

[0008] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0009] A petroleum perforating bullet comprises a detonation groove arranged horizontally on the top of a bullet body, two fixing holes arranged vertically on one side of the detonation groove at the top of the bullet body, the fixing hole is located inside the bullet body and is used to install a wire ring, the end of the wire ring is sleeved in the fixing hole, the wire ring is a U-shaped structure, a rivet point for bearing riveting force is arranged on the top of the bullet body, the rivet point covers a part of the top area of ​​the bullet body and a part of the fixing hole area; when the rivet point is subjected to the riveting force, the fixing hole is deformed to squeeze the fixing wire ring.

[0010] Preferably, the riveting point is subjected to riveting force to form a groove on the top of the elastic body, and the side of the groove away from the fixing hole is an inclined surface, and the angle between the inclined surface and the bottom surface of the groove is an obtuse angle.

[0011] Preferably, the shape of the sink is semicircular.

[0012] Preferably, a riveting die for a petroleum perforating bullet wire ring comprises a riveting point press part connected to the riveting end of a riveting press, and a positioning plate for limiting the petroleum perforating bullet; during the riveting operation, the positioning plate is located directly below the riveting point press part, and the positioning plate is sleeved on the periphery of the petroleum perforating bullet.

[0013] Preferably, the positioning plate is slidably arranged on the guide groove plate.

[0014] Preferably, the riveting point pressed part is connected to the riveting end of the riveting press through a top plate.

[0015] Preferably, the top plate is fixed to the riveting end of the riveting press; the riveting platform of the riveting press is connected to the top plate via an elastic member.

[0016] Preferably, at least two oil perforating bullets are simultaneously arranged in one positioning plate.

[0017] Preferably, a petroleum perforating wire ring riveting process comprises the following steps:

[0018] Step S1: inserting the wire ring into the fixing hole, with the bottom end of the wire ring contacting the bottom end of the fixing hole;

[0019] Step S2: applying force to the riveting point by riveting pressure to deform the fixing hole and squeeze the fixing wire ring.

[0020] Preferably, in step S2, a petroleum perforating bullet wire ring riveting die is used to limit the position of the petroleum perforating bullet.

[0021] Preferably, in step S2, at least two petroleum perforating bullets are simultaneously arranged in the petroleum perforating bullet wire ring riveting die, and the riveting point position of each petroleum perforating bullet corresponds to the riveting point position on the riveting point pressing part.

[0022] The technical solution of the present application has at least the following advantages and beneficial effects:

[0023] In the present invention, a riveting point is riveted at the wire ring fixing part of the petroleum perforating bullet to replace the currently commonly used adhesive fixing method, and the fixing part is plastically deformed by riveting, so that the wire ring is fixed by the deformed fixing hole and does not loosen;

[0024] In the present invention, a riveting die and a riveting machine are provided to quickly rivet the wire ring fixing part of the petroleum perforating bullet, thereby changing the fixing mode of the wire ring;

[0025] In the present invention, a plurality of petroleum perforating bullets to be riveted are accurately placed in the riveting die by arranging a guide groove plate and a positioning plate in the riveting die, and riveting is performed synchronously, thereby improving the efficiency of riveting and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the CNPC perforating bullet of the present invention.

[0027] Figure 2 It is a schematic diagram of the top view of the structure of the CNPC perforating bullet of the present invention.

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the CNPC perforating bullet of the present invention.

[0029] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of A.

[0030] Figure 5 It is a structural schematic diagram of the riveting die in the present invention.

[0031] Figure 6 It is a front view structural schematic diagram of the riveting die in the present invention.

[0032] Figure 7 It is a left-side structural schematic diagram of the riveting die in the present invention.

[0033] Figure 8 It is a schematic diagram of the cross-sectional structure of the riveting die in the present invention.

[0034] Fig. 9 It is a schematic diagram of the cross-sectional structure of the riveted point pressed part in the present invention.

[0035] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of B.

[0036] In the figure: 1-elastic body, 2-wire ring, 3-fixing hole, 4-rivet point, 5-guide groove plate, 501-limiting groove plate, 502-wire ring limiting plate, 503-guide side plate, 504-avoidance groove, 6-positioning plate, 7-elastic reset device, 701-bottom plate, 702-top plate, 703-sliding column, 704-sleeve, 705-spring, 706-limiting column, 8-rivet point pressed part, 801-pressing plate, 802-pressing protrusion, 803-wire ring avoidance hole. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. If the terms "center", "upper", "lower", "inner", "outer", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the figure, or the orientation or position relationship in which the product of the application is usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. It should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] Example

[0040] In the prior art, a petroleum perforating bullet is composed of a bullet body 1 , a wire ring 2 and a fixing hole 3 .

[0041] A detonation groove is horizontally arranged on the top of the projectile body 1 for placing the detonating cord. Two fixing holes 3 are vertically arranged on one side of the detonation groove at the top of the projectile body 1. The fixing hole 3 is located inside the projectile body 1 and is used to install a wire ring 2. The bottom end of the wire ring 2 is sleeved in the fixing hole 3. The wire ring 2 is a U-shaped structure. Special glue is filled between the wire ring 2 and the fixing hole 3 to bond the wire ring 2 and the projectile body 1 together to prevent the wire ring 2 from falling. The wire ring 2 is used to install the oil perforating bullet on the bomb rack.

[0042] In this embodiment, the body 1 and the wire ring 2 of the oil perforating bullet are plugged together, and the bottom end of the wire ring 2 contacts the bottom of the fixing hole 3 to ensure that the wire ring 2 is plugged into the body 1 at the same fixing height. Then, the connection and fixation of the wire ring 2 of the oil perforating bullet can be achieved by riveting with a riveting press; and multiple oil perforating bullets are placed in a riveting die, and the synchronous riveting and fixation of multiple oil perforating bullet wire rings can be achieved by the riveting die of the riveting press through limiting and setting multiple riveting points.

[0043] Please refer to Figure 1-Figure 4 The present invention provides a petroleum perforating bullet, comprising a bullet body 1, a wire ring 2, a fixing hole 3, and a rivet point 4.

[0044] Furthermore, a rivet point for bearing the riveting force is provided on the top of the projectile 1, and the rivet point 4 covers a part of the top area of ​​the projectile 1 and a part of the fixing hole 3; when the rivet point 4 is subjected to the riveting force, the fixing hole is deformed and squeezes the fixing wire ring 2, and the rivet point 4 is subjected to the riveting force to form a groove on the top of the projectile 1, and the side of the groove away from the fixing hole 3 is an inclined surface, and the angle between the inclined surface and the bottom surface of the groove is an obtuse angle, and the angle range of the obtuse angle is between 120 degrees and 145 degrees.

[0045] The shape of the sink groove is semicircular, and the depth of the semicircular sink groove is between 0.3mm and 1.5mm.

[0046] In this embodiment, the hole spacing between the two fixing holes is 5 mm-6.5 mm, and the width from the semicircular diameter edge of the sink groove to its arc edge is 1.5 mm-3.5 mm.

[0047] Preferably, during the riveting process, the elastic body 1 of the steel structure undergoes plastic deformation at the rivet point 4, and the steel structure is squeezed and squeezed into the aperture of the fixing hole 3 here, so that the aperture size and shape are changed (the outer arc radius range of the semicircular groove formed by extrusion is 1.8mm-3mm, and the inner arc radius range of the semicircular groove is 0.5mm-1.5mm, and the diameter of the inner arc is smaller than the aperture of the fixing hole when not squeezed), so that the aperture of the fixing hole 3 at the rivet point 4 is smaller than the aperture of the fixing hole 3 inside the elastic body 1, thereby fixing the wire ring 2 inserted in the fixing hole 3 without the need for special glue, and will not loosen in various working environments, thereby improving the firmness of the wire ring 2.

[0048] Please refer to Figure 5-Figure 10 The present invention provides a petroleum perforating bullet wire ring riveting die, which is used to process the above-mentioned petroleum perforating bullet, and includes a guide groove plate 5, a positioning plate 6, and a riveting point pressing part 8.

[0049] Among them, the petroleum perforating bullet is placed in the riveting die, the top of the riveting die is connected to the riveting end of the riveting machine, and the bottom of the riveting die is placed on the riveting platform of the riveting machine.

[0050] Furthermore, a plurality of petroleum perforating bullets are slidably arranged in the guide groove plate 5, a positioning plate 6 is movably arranged on one side of the guide groove plate 5, the positioning plate 6 is sleeved on the periphery of the petroleum perforating bullet, the guide groove plate 5 is fixedly arranged on the riveting platform of the riveting press, the riveting end of the riveting press is fixedly connected with a riveting point pressing part 8, and the positioning plate 6 is located directly below the riveting point pressing part 8.

[0051] Among them, a plurality of oil perforating bullets are arranged on the positioning plate 6 and are precisely positioned by the positioning plate 6 .

[0052] Preferably, multiple oil perforating bullets are placed in the guide groove plate 5, and the positioning plate 6 is used to ensure the riveting position accuracy of the rivet points 4 on the bullet body 1. Then, the riveting press drives the rivet point pressing part 8 to be pressed down, and the rivet points 4 are riveted on the bullet bodies 1 of multiple oil perforating bullets to fix the wire ring 2 on the bullet body 1. Finally, the riveting press is moved up and reset, and the oil perforating bullet is taken out. The entire fixing process of the wire ring 2 does not require manual fixing, and no special adhesive bonding is required, which greatly improves the processing efficiency of the oil perforating bullet and the firmness of the wire ring 2.

[0053] The above-mentioned petroleum perforating bullet can be processed to obtain a petroleum perforating bullet wire ring riveting process, which includes the following steps:

[0054] Step S1: inserting the wire ring 2 into the fixing hole 3, so that the bottom end of the wire ring 2 contacts the bottom end of the fixing hole 3;

[0055] Step S2: applying force to the riveting point 4 by riveting pressure, so that the fixing hole is deformed and the wire ring 2 is squeezed and fixed.

[0056] In this embodiment, the guide groove plate 5 includes a limiting groove plate 501 , a wire ring 2 limiting plate, a guide side plate 503 , and an avoidance groove 504 .

[0057] Specifically, the limiting slot plate 501 is L-shaped, the bottom plate 701 of the limiting slot plate 501 is in sliding contact with the bottom surface of the projectile body 1, the left and right direction of the limiting slot plate 501 is its length direction, and a plurality of oil perforating bullets are arranged on the limiting slot plate 501 along its length direction.

[0058] The top of the side plate of the limiting slot plate 501 is fixedly connected to one side of the limiting plate of the wire ring 2, and the other side of the limiting plate of the wire ring 2 is slidably connected to the wire ring 2 on the oil perforating bullet. The limiting plate of the wire ring 2 is placed horizontally, and the side slidably connected to the wire ring 2 is used to limit the wire rings 2 on multiple oil perforating bullets placed in the limiting slot plate 501 to the same surface, so as to facilitate the subsequent synchronous riveting work of multiple wire rings 2.

[0059] A guide side plate 503 is fixedly provided on the side of the limiting slot plate 501 away from the side plate, and a limiting slot is formed between the guide side plate 503 and the side plate of the limiting slot plate 501 for the oil perforating bullet to slide. The sliding direction of the oil perforating bullet in the limiting slot is the length direction of the limiting slot plate 501, and the slot width of the limiting slot is consistent with the outermost diameter of the bullet body 1, so as to prevent the oil perforating bullet from shaking in the limiting slot and affecting the riveting accuracy. The guide side plate 503 on the guide slot outlet side has an opening, and the opening width is larger than the diameter of the oil perforating bullet, so as to facilitate the rapid removal of the oil perforating bullet after the subsequent riveting of the wire ring 2.

[0060] A positioning plate 6 is also slidably arranged on the right side of the limiting slot plate 501. The sliding direction of the positioning plate 6 is the length direction of the limiting slot plate 501. The left end of the positioning plate 6 matches and abuts against the outermost shape of the projectile body 1, and is responsible for positioning the positions of multiple petroleum perforating bullets in the limiting slot, so as to facilitate the precise riveting of the riveting point 4 forming part above.

[0061] The positioning plate 6 is connected to the limiting slot plate 501 by bolts. A long slot is provided on the positioning plate 6. By adjusting the position of the positioning plate 6 through the long slot, the position of the oil perforating bullet can be adjusted, so that the riveting accuracy can be adjusted during subsequent repairs.

[0062] In addition, the plate surface of the wire ring 2 limit plate is also penetrated by a plurality of avoidance grooves 504, which correspond to the number and position of the wire rings 2 in the oil perforating bullet after being positioned by the positioning plate 6. It is responsible for avoiding the pressed riveting point pressed part 8 when riveting at the wire ring 2.

[0063] In this embodiment, an elastic reset device 7 is further provided in the riveting die for the petroleum perforating bullet, and the elastic reset device 7 includes a bottom plate 701, a top plate 702 and an elastic component.

[0064] Specifically, the bottom plate 701 is fixed on the riveting platform of the riveting press, a limiting slot plate 501 is fixed on the bottom plate 701, an elastic member is provided on the bottom plate 701, the top of the elastic member is connected to the top plate 702, and the top plate 702 is connected to the riveting head of the riveting press above.

[0065] When the riveting press is performing riveting at the riveting point 4, the riveting head drives the top plate 702 and the riveting point pressing part 8 on the top plate 702 to be pressed down. At this time, the elastic part elastically contracts, and when the riveting point pressing part 8 contacts the top of the elastic body 1, the elastic part can avoid hard contact between the two. Through the elastic buffering of the elastic part, the riveting point pressing part 8 gradually applies pressure to the elastic body 1 when it is pressed down, and the riveting point 4 is performed to avoid hard contact causing damage to the surface of the riveting point pressing part 8 or the elastic body 1, which affects the riveting.

[0066] The elastic member includes a sliding column 703 , a sleeve 704 , a spring 705 and a limiting column 706 .

[0067] Specifically, the sliding column 703 is vertically fixed on the bottom plate 701, the top of the sliding column 703 is slidably sleeved with the sleeve 704, the sleeve 704 is vertically fixed to the bottom surface of the top plate 702, and a spring 705 is provided on the outer sleeve of the sliding column 703, the bottom end of the spring 705 is fixedly connected to the sliding column 703, and the top end of the spring 705 is fixedly connected to the bottom end of the sleeve 704. When the top plate 702 moves downward by the riveting press, the sleeve 704 slides down through the sliding column 703, and the spring 705 between the sleeve 704 and the sliding column 703 will apply elastic force.

[0068] It is worth mentioning that in the specific mold structure, an oil-free bushing will be installed in the sleeve 704. When the slide column 703 passes through the oil-free bushing and slides in the sleeve 704, the friction resistance is smaller, the sliding is smoother, and excessive wear of the slide column 703 and the sleeve 704 can be avoided.

[0069] Limiting posts 706 are vertically arranged on the upper surface of the bottom plate 701 and the lower surface of the top plate 702. The limiting posts 706 at the upper and lower positions correspond to each other. There is a height gap between the corresponding limiting posts 706. The height gap is consistent with the downward pressing height of the riveting end of the riveting press.

[0070] When the riveting press is pressed down to the forming position of the riveting point 4, the upper and lower corresponding limit columns 706 in the elastic reset device 7 will abut together to limit the continued downward pressure of the riveting press, thereby ensuring the accuracy of the riveting depth of the anchor point by the riveting press.

[0071] In this embodiment, the riveting point press-formed part 8 includes a press plate 801 , a press-formed protrusion 802 , and a wire ring 2 avoidance hole.

[0072] Specifically, the pressing plate 801 is fixed to the bottom surface of the top plate 702 , and a plurality of pressed protrusions 802 are fixed to the bottom of the pressing plate 801 . The pressed protrusions 802 correspond vertically to the fixed holes 3 on the oil perforating bullets arranged in the limiting slot plate 501 below.

[0073] The shape of the embossing protrusion 802 matches the shape of the semicircular groove of the rivet point 4, so that the shape of the rivet point 4 can be directly rivet-pressed.

[0074] A wire ring 2 avoidance hole is vertically arranged on the pressing plate 801 located inside the pressed protrusion 802. The shape of the wire ring 2 avoidance hole matches the shape of the wire ring 2 below, so that the wire ring 2 can be avoided during riveting.

[0075] In this embodiment, the body 1 is made of 45# steel, and the wire ring 2 is made of galvanized iron wire. The obtuse angle formed by the outer edge of the arc of the semicircular groove of the rivet point 4 can change the direction of a part of the downward riveting pressure when the embossed protrusion 802 is riveted, so that the riveting pressure is directed to one side of the rivet point 4 (that is, the rivet point 4 is located on the side of the fixing hole 3), thereby squeezing the plastically deformed 45# steel more toward the direction of the fixing hole 3, quickly changing the aperture size and shape of the fixing hole 3, and fixing the wire ring 2.

[0076] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solution invented here based on the above description, and the scope of the present invention is defined by the attached claims.

Claims

1. A petroleum perforating bullet, comprising a bullet body (1) with a detonation groove arranged horizontally on the top, two fixing holes (3) arranged vertically on one side of the detonation groove at the top of the bullet body (1), the fixing hole (3) being located inside the bullet body (1) and used for installing a wire ring (2), the end of the wire ring (2) being sleeved in the fixing hole (3), the wire ring (2) being a U-shaped structure, characterized in that: A rivet point (4) for bearing the rivet force is provided at the top of the elastic body (1), and the rivet point (4) covers a partial area of ​​the top of the elastic body (1) and a partial area of ​​the fixing hole (3); when the rivet point (4) is subjected to the rivet force, the fixing hole (3) is deformed to squeeze the fixing wire ring (2).

2. The petroleum perforating bullet according to claim 1, characterized in that: The riveting point (4) is subjected to riveting force to form a recessed groove on the top of the elastic body (1), and the side of the recessed groove away from the fixing hole (3) is an inclined surface, and the angle between the inclined surface and the bottom surface of the recessed groove is an obtuse angle.

3. The petroleum perforating bullet according to claim 2, characterized in that: The shape of the sink is semicircular.

4. A riveting die for oil perforating wire ring, characterized in that: The riveting die for the petroleum perforating bullet according to any one of claims 1 to 3 comprises a riveting point (4) profiling part connected to the riveting end of the riveting press, and a positioning plate (6) for limiting the petroleum perforating bullet; during the riveting operation, the positioning plate (6) is located directly below the riveting point (4) profiling part, and the positioning plate (6) is sleeved on the periphery of the petroleum perforating bullet.

5. The petroleum perforating wire ring riveting die according to claim 4, characterized in that: The positioning plate (6) is slidably arranged on the guide groove plate (5).

6. The petroleum perforating wire ring riveting die according to claim 4, characterized in that: The riveting point (4) profiled part is connected to the riveting end of the riveting press through the top plate (702).

7. The petroleum perforating wire ring riveting die according to claim 6, characterized in that: The top plate (702) is fixed to the riveting end of the riveting press; the riveting platform of the riveting press is connected to the top plate (702) via an elastic member.

8. The petroleum perforating wire ring riveting die according to claim 4, characterized in that: At least two petroleum perforating bullets are simultaneously arranged in a positioning plate (6).

9. A riveting process for a petroleum perforating bullet wire ring, applied to the riveting process of the petroleum perforating bullet according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step S1: inserting the wire ring (2) into the fixing hole (3), so that the bottom end of the wire ring (2) contacts the bottom end of the fixing hole (3); Step S2: applying force to the riveting point (4) by riveting pressure, so that the fixing hole (3) is deformed and the wire ring (2) is squeezed and fixed.

10. A petroleum perforating wire ring riveting process according to claim 9, characterized in that: In step S2, the position of the petroleum perforating bullet is limited by using a riveting die of the petroleum perforating bullet wire ring (2); In step S2, at least two petroleum perforating bullets are simultaneously arranged in a riveting die of a petroleum perforating bullet wire ring (2), and the position of the riveting point (4) of each petroleum perforating bullet corresponds vertically to the position of the riveting point (4) on the press part.

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