Cable conveying perforation contact lateral ignition device

Abstract

The invention relates to the technical field of conventional cable perforation processes for oil and gas wells, in particular to a cable conveying perforation contact lateral ignition device. The cable conveying perforation contact lateral ignition device comprises a detonating device, a protection device and a body, a detonator body in the protection device is fixed in a sleeve through a rubber sealing plug, the rubber sealing plug is provided with an electrode core with a spring-shaped tail, the protection device is arranged outside the detonating device, and the installed protection device and detonating device are installed in the body. A detonating cord penetrates through a through hole in the lower part of the body from the bomb carrier and is in lateral lap joint with the detonator body. According to the cable conveying perforation contact lateral ignition device, the electrode core with the spring-shaped tail is arranged at the top end of the detonating device, so that the wiring step is omitted, the labor intensity of workers is reduced, and the working time is saved; through the structure that the tail end of the detonator is in lateral lap joint with the detonating cord, the step of installing a booster tube on the detonating cord is omitted, potential safety hazards are reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of conventional cable perforation technology for oil and gas wells, and in particular to a cable-transported perforation contact lateral ignition device. Background Art

[0002] In the cable transmission operation of oil and gas wells, the cumbersome operation steps often result in low construction efficiency, and even the construction failure caused by the error of the wiring steps. In the prior art, in order to improve the success rate of conventional cable transmission perforation operations, one staff member often performs the wire wiring work, and then another staff member performs the inspection of the connection line. The manual labor is light, time-consuming, and the detonator tube needs to be installed on the detonating cord, which poses a great safety hazard. Therefore, in view of the above shortcomings, a cable transmission perforation contact lateral ignition device is proposed. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a cable-transmitted perforating contact lateral ignition device, which solves the problems of complicated operating steps, low construction efficiency, high manual labor intensity and great safety hazards when using explosive tubes in conventional cable perforating processes.

[0004] (II) Technical solution In order to solve the above problems, the present invention provides a cable-transported perforating contact lateral ignition device, comprising: An initiating device, a protective device and a body; the initiating device comprises a casing, a detonator body is arranged in the casing, a rubber sealing plug is arranged above the casing, an electrode core is arranged in the middle of the rubber sealing plug, and the head of the electrode core extends into the casing and the tail is spring-shaped; A protective device is provided outside the detonator, and the detonator and the protective device are placed in the body after being installed; a through hole is provided at the lower end of the body, and the lower end is connected to a bomb rack, on which a detonating cord is provided, and the detonating cord passes through the through hole at the lower end of the body and is inserted into the gap between the end of the detonator body and the protective device to overlap the detonator body laterally.

[0005] Preferably, a protrusion is provided at the top of the protection device, and a groove is provided at the bottom of the rubber sealing plug, and the groove matches the protrusion.

[0006] Preferably, a grounding spring is provided outside the protection device, and a spring clip is provided at the top of the protection device, and the spring clip contacts the sleeve and the grounding spring respectively.

[0007] Preferably, the surface of the grounding spring is galvanized.

[0008] Preferably, a positioning plate is provided between the lower end of the main body and the spring holder, and an opening corresponding to the through hole at the bottom end of the main body is provided in the middle of the positioning plate.

[0009] Preferably, the detonator body includes an initiator live wire and an initiator ground wire.

[0010] Preferably, the live wire of the detonator is connected to the electrode core, and the ground wire of the detonator is connected to the sleeve.

[0011] (III) Beneficial effects The cable-transported perforating contact lateral ignition device provided by the present invention realizes that no wiring is required and a conducting circuit can be quickly and conveniently generated by providing an electrode core with a spring-shaped tail at the top of the detonator, thereby reducing the labor intensity of manual labor, optimizing the process steps, and saving working time; through the structure of lateral overlap between the end of the detonator and the detonating cord, the step of installing the detonating cord on the detonating cord is omitted, thereby reducing safety hazards and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the use of the cable-transmitted perforating contact lateral ignition device of the present invention; Figure 2 It is a schematic structural diagram of the cable-transmitted perforating contact lateral ignition device of the present invention; Figure 3 It is a schematic diagram of the cable-transmitted perforating contact lateral ignition device without the main body part of the present invention; Figure 4 It is a schematic diagram of the structure of the detonating device of the cable-transmitted perforating contact lateral ignition device of the present invention.

[0013] Among them, 1. detonating device; 2. protective device; 3. tinned spring; 4. spring clip; 5. main body; 6. protrusion; 7. groove; 8. detonating device live wire; 9. detonator body; 10. casing; 11. detonating device ground wire; 12. electrode core; 13. rubber sealing plug; 14. detonating cord; 15. positioning plate; 16. bomb rack. Implementation

[0014] 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.

[0015] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by “upper”, “lower”, “inside”, “outside”, “top”, “bottom”, etc. are all based on the orientations or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] like Figure 1-4 As shown, the present invention provides a cable-transported perforating contact lateral ignition device, which specifically comprises: an initiating device 1, a protective device 2 and a body 5; During operation, the detonator 1 is connected to the contacts of the upper magnetic positioning device and detonates subsequent explosive devices after receiving an ignition signal.

[0017] The detonating device 1 includes a detonator body 9, a sleeve 10, an electrode core 12 and a rubber sealing plug 13; the detonator body 9 contacts the explosive, explodes and detonates the explosive after receiving a detonation signal; a sleeve 10 is provided outside the detonator body 9 to fix the position of the detonator body 9, and the sleeve 10 extends from the bottom of the detonator body 9 to contact the explosive.

[0018] Among them, the casing 10 is provided with a rubber sealing plug 13, which fixes the detonator body 9 in the casing 10 to prevent the detonator body 9 from being accidentally touched during movement or storage, resulting in explosion of the detonator body 9, which ensures the safety of the device and is also used to install the electrode core 12; an electrode core 12 is provided in the center of the rubber sealing plug 13, and the head of the electrode core 12 passes through the rubber sealing plug 13 and extends into the casing 10 to introduce the received detonation signal into the casing 10, and the tail of the electrode core 12 is spring-shaped, which forms a contact connection with the upper positioning device, and can form a circuit for receiving the detonation signal without performing wiring work, thereby eliminating the wiring link, reducing the labor intensity of the conventional cable perforating process in oil and gas wells, and saving working time.

[0019] It should be noted that the sleeve 10 is clamped with the rubber sealing plug 13, and the sleeve 10 is clamped with the detonator body 9, which further fixes the components of the detonating device to ensure the stability and safety of the device during transportation and use.

[0020] The electrode core 12 is made of copper, which reduces economic costs while ensuring good conductivity of the device. In actual field applications, the material can be replaced with other materials with better performance or economy according to different indicators such as work requirements and work budget.

[0021] like Figure 3-4 As shown, the detonating device 1 is provided with a protective device 2 outside, and the protective device 2 is sleeved outside the casing 10 to further fix the end of the detonator body 9 to prevent the detonator body 9 from colliding with surrounding components due to bumps during transportation or use, causing the device to explode. In addition, an annulus is provided inside the protective device 2 and at the tail of the detonator body 9, so that the detonator body 9 does not contact other devices after the device is assembled, eliminating the need to use devices with the same function such as a straightening tube.

[0022] Among them, the rubber sealing plug 13 cooperates with the protective device 2, a groove 7 is provided at the bottom of the rubber sealing plug 13, and a protrusion 6 is provided at the top of the protective device 2. The groove 7 fits with the protrusion 6. During the installation process, the protrusion 6 and the groove 7 bite into each other so that the rubber sealing plug 13 and the protective device 2 are tightly combined and stably connected, thereby improving the strength of the device, preventing the device from falling off under the action of external force, and improving the safety of the device.

[0023] In the present invention, the detonator body 9 includes an initiator live wire 8 and an initiator ground wire 11. The initiator live wire 8 is connected to the head of the electrode core 12, and the initiator ground wire 11 is connected to the casing 10. When the device is working, the detonation signal is transmitted from the electrode core 12 to the initiator live wire 8, thereby detonating the detonator body 9. The initiator ground wire 11 forms a conductive loop by transmitting the signal to the casing 10. During the process, no wiring operation and post-wiring inspection process are required, which saves the steps of manual wiring, reduces the manual work intensity, and saves the process flow and time.

[0024] Among them, a spring clip 4 is provided at the top of the protection device 2, and a grounding spring 3 is provided outside the protection device 2. The spring clip 4 is contact-connected with the sleeve 10 and the grounding spring 3, and the grounding spring 3 is contact-connected with the body 5 and connected to the ground wire. The ground wire 11 of the detonator is transmitted to the spring clip 4 through the sleeve 10 through the conducted signal, and then is contact-connected with the body 5 through the grounding spring 3, and then is connected to the earth through the ground wire of the body 5, forming a complete and good conduction circuit, ensuring the normal detonation of the device during use and improving the working efficiency of the device.

[0025] like Figure 2 As shown, after the detonator 1 and the protective device 2 are installed, they are placed in the body 5. The upper end of the body 5 is connected to the upper magnetic positioning device. After installation, the upper magnetic positioning device contacts the spring-shaped tail of the electrode core 12 in the detonator 1 in a contact-type manner, and transmits the upper detonation signal to the device; a through hole is provided in the middle of the bottom end of the body 5, for the lower transmission explosion device to pass through the through hole and contact the detonator body 9, so as to transmit the explosion to the explosion position. After the device is installed, the detonator live wire 8 is connected to the upper magnetic positioning device through the electrode core 12, and the detonator ground wire 11 is connected to the spring clip 4 through the sleeve 10, and then the current is conducted to the body 5 through the grounding spring 3 to be grounded, forming a conductive loop, so that the detonation signal can be smoothly transmitted to the detonator body 9 and the detonator body 9 is detonated.

[0026] Among them, the lower end of the local 5 is connected to the bomb rack 16 in the lower gun during use, and the bomb rack 16 is used to carry the detonating cord 14 and to pull the detonating cord 14 to a designated explosion position. When one end of the detonating cord 14 is exploded, it will be detonated simultaneously and the explosion will be transferred from one end of the detonating cord 14 to the other end, thereby playing a detonating role. The detonating cord 14 extends into the main body 5 through the through hole at the bottom end of the main body 5, and the head of the detonating cord 14 extends into the annulus between the protective device 2 and the detonator body 9. At this time, the detonating cord 14 and the detonator body 9 are laterally overlapped, and an ignition system of side-lap detonation is formed. When the detonator body 9 is detonated, the detonating cord 14 can fully contact the explosion site, and the detonation effect is good. At the same time, when arranging, there is no need to axially align the detonating cord 14 and the detonator body 9. Since the detonating cord 14 is installed in the annulus between the detonator body 9 and the protective device 2, the detonating cord 14 is fixed by the detonator body 9 and the protective device 2. This detonation system does not need to perform the axial alignment link between the detonating cord 14 and the detonator body 9 in the cable-transported perforating process, which reduces labor intensity and saves working time.

[0027] It should be noted that a positioning plate 15 is provided between the main body 5 and the bomb rack 16, and an opening is provided on the positioning plate 15 corresponding to the through hole at the bottom of the main body 5, and a positioning groove corresponding to the bomb rack 16 is provided on the positioning plate 15. The positioning plate 15 is fixed to the bottom end of the main body 5, and the bomb rack 16 is embedded in the positioning groove on the positioning plate 15. The detonating cord 14 passes through the opening in the middle of the positioning plate 15 and enters the through hole at the bottom of the main body 5. While ensuring the normal operation of the device, the fixing strength between the main body 5 and the bomb rack 16 is strengthened to improve the stability and safety of the device.

[0028] The cable-transmitted perforating contact lateral ignition device provided by the present invention reduces the labor intensity of manual labor, optimizes the process steps, saves working time, eliminates the step of installing the booster tube on the detonating cord, reduces safety hazards, and improves assembly efficiency. The specific operation process of the device is as follows: Step 1: Assemble the detonator and the protective device and place them into the main body.

[0029] Step 2: Connect the top of the body to the magnetic positioning device, dock the electrode core with the copper contact at the bottom of the magnetic positioning device, connect the positioning plate and the bomb rack at the bottom of the body, pass the detonating cord on the bomb rack through the opening of the positioning plate and enter the through hole at the bottom of the body, and insert the detonating cord head into the annulus between the protective device and the detonator body to form a side-lapped detonation and ignition structure.

[0030] Step three, the magnetic positioning device transmits the firing command. At this time, the signal is connected to the detonator body's firing wire through the electrode core. The detonator body's bottom line is connected to the body through the sleeve, spring clip and grounding spring, thereby forming a detonation circuit with the firing wire of the detonator. The detonator body explodes and detonates the detonating cord to complete the ignition operation.

[0031] Finally, it should be noted that the above is only 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable-transported perforating contact lateral ignition device, characterized in that: include: An initiating device (1), a protective device (2) and a body (5); the initiating device (1) comprises a sleeve (10), a detonator body (9) is arranged in the sleeve (10), a rubber sealing plug (13) is arranged above the sleeve (10), an electrode core (12) is arranged in the middle of the rubber sealing plug (13), the head of the electrode core (12) extends into the sleeve (10) and the tail is spring-shaped; A protective device (2) is provided outside the detonating device (1). After the detonating device (1) and the protective device (2) are installed, they are placed in a body (5); a through hole is provided at the lower end of the body (5), and the lower end is connected to a bomb rack (16). A detonating cord (14) is provided on the bomb rack (16). The detonating cord (14) passes through the through hole at the lower end of the body (5) and is inserted into a gap between the end of the detonator body (9) and the protective device (2) to overlap the detonator body (9) laterally.

2. The cable-transported perforating contact lateral ignition device according to claim 1, characterized in that: The top of the protection device (2) is provided with a protrusion (6), and the bottom of the rubber sealing plug (13) is provided with a groove (7), and the groove (7) matches the protrusion (6).

3. The cable-transported perforating contact lateral ignition device according to claim 1 or 2, characterized in that: A grounding spring (3) is provided outside the protection device (2), and a spring clip (4) is provided at the top end of the protection device (2), wherein the spring clip (4) contacts the sleeve (10) and the grounding spring (3) respectively.

4. The cable-transported perforating contact lateral ignition device according to claim 3, characterized in that The surface of the grounding spring (3) is zinc-plated.

5. The cable-transported perforating contact lateral ignition device according to claim 1, characterized in that: A positioning plate (15) is provided between the lower end of the main body (5) and the bomb rack (16), and an opening corresponding to the through hole at the bottom end of the main body (5) is provided in the middle of the positioning plate (15).

6. The cable-transported perforating contact lateral ignition device according to claim 1, characterized in that: The detonator body (9) comprises an initiator live wire (8) and an initiator ground wire (11).

7. The cable-transported perforating contact lateral ignition device according to claim 6, characterized in that: The detonator live wire (8) is connected to the electrode core (12), and the detonator ground wire (11) is connected to the sleeve (10).

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