Seismic exploration electronic detonator
By using pure copper conductors, delay control modules and specific explosive combinations in the detonator, the problem of insufficient detonator delay accuracy and instantaneous performance is solved, and the efficient, reliable detonator and data accuracy of detonators in seismic exploration are achieved.
Patent Information
- Application Number
- CN202411449422.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2024-12-06
AI Technical Summary
The existing detonators lack delay accuracy and instantaneous performance in seismic exploration, and have poor anti-static ability, resulting in a single use reliability and detection methods, which cannot effectively ensure the reliability of blasting.
An electronic detonator for seismic exploration was designed, using pure copper wires, delay control modules, ignition powder and different types of explosives (tricarbazide perchlorate combined with zinc, Tai'an, Hei Sojin) combination to transmit electricity through the wire. The signal and delay control module accurately controls the detonation time, and the ignition powder improves the ignition response speed and stability, ensuring that the detonator accurately detonates when needed.
It improves the delay accuracy and instantaneous performance of the detonator, enhances the accuracy and safety of seismic exploration data, realizes the information management of the detonator, and ensures reliability and efficiency in complex environments.
Smart Images
Figure CN119085428A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of explosion sources in the process of seismic exploration, and more specifically to an electronic detonator for seismic exploration. Background Art
[0002] Explosive sources are artificial sources widely used in seismic exploration. At present, a series of ground sources have been developed, such as heavy hammers, continuous vibration sources, pneumatic sources, etc., but the important source often used in land seismic exploration is still explosives. Let the detonator detonate the explosives, so that the explosion energy works on the medium to stimulate seismic waves. By studying the laws of seismic wave propagation in the strata to find out the underground geological conditions and thus find oil and gas fields, it has become one of the most effective exploration methods in oil exploration.
[0003] However, the existing detonators have the following problems when used: (1) In the past few decades of oil seismic exploration, electric detonators have been used to excite explosives. This type of detonator is easy to detonate, and can be used with ordinary detonators or batteries, but its anti-static ability is poor, so the requirements for its transportation, storage, and use are very strict. The delay time accuracy of electric detonators is poor, the reliability of large-scale use is poor, the detection method is single, the detection items are limited, and the reliability of blasting cannot be effectively guaranteed; (2) Secondly, although existing electronic detonators meet high safety and reliability requirements, they have been unable to enter the field of explosive source technology in the process of seismic exploration due to the mismatch between chips and agents and the inability of delay accuracy to meet the requirements of seismic exploration.
[0004] The invention can improve the delay accuracy and instantaneous performance of detonators used in seismic exploration and realize the information management of detonators. Summary of the invention
[0005] The present invention aims to solve the technical problems raised by the above-mentioned background technology and provides an electronic detonator for seismic exploration.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electronic detonator for seismic exploration, comprising: a line card, a conducting wire is arranged below the line card, a basic detonator is arranged below the conducting wire, an electronic ignition element is arranged between the conducting wire and the basic detonator, an electrode plug is injection-molded at the terminal of the conducting wire, a delay control module is arranged at the bottom of the electrode plug, a tube shell is arranged below the electrode plug, a built-in blade of the line card is crimped and fixed to the conducting wire, the electronic ignition element comprises an electrode plug, a delay control module, ignition powder and a protective cover, the basic detonator is composed of a tube shell and a combination of a detonator, a transitional explosive and a high explosive pressed in sequence from top to bottom inside the tube shell, and a reinforcing cap is pressed above the detonator.
[0007] A further preferred solution is that a wire runs through the electrode plug and is connected to the delay control module through a port, and the portion where the wire terminal passes through the electrode plug is subjected to an outer skin and an inner skin peeling process.
[0008] A further preferred solution is that the chip resistor of the delay control module is dipped in ignition powder, and a protective cover is nested on the surface of the ignition powder.
[0009] A further preferred solution is that a resistance port is fixedly mounted on the delay control module and is connected to the inner core wire port through which the wire passes through the electrode plug by riveting or welding.
[0010] A further preferred solution is that a bayonet is provided on the bottom surface of the electrode plug, and the electrode plug is bayoneted to the tube shell via the bottom bayonet.
[0011] A further preferred solution is that the protective sleeve is made of thermoplastic rubber and is nested and wrapped around the surface of the ignition powder.
[0012] A further preferred solution is that a fire transfer hole is provided in the middle of the upper end of the reinforcing cap. Beneficial Effects
[0013] 1. By providing a conductor, the conductor made of pure copper material can effectively reduce the distortion, interference and attenuation of the electrical signal during transmission due to its excellent electrical conductivity. In a complex seismic exploration environment, there may be various electromagnetic interference sources, but the pure copper conductor can maintain the integrity of the electrical signal to the greatest extent, ensuring that the detonation command is accurately transmitted to the inside of the detonator, and can efficiently transmit current, improve the electrical conductivity of the conductor, and reduce the impact on the transmission of electrical signals; 2. By setting up a delay control module, the bridge wire plays a key role in the detonation process of the detonator. It usually requires a certain current and time to generate heat and trigger a subsequent explosion reaction. The delay control module can optimize the ignition process of the bridge wire. By accurately controlling the current and time, the ignition response time of the bridge wire is reduced, the chip delay accuracy is improved, and more accurate synchronous detonation or detonation at a specific time is achieved, the quality and accuracy of the exploration data are improved, and three-code binding is realized to achieve full tracking and management of the detonator, improve the safety and management efficiency of the detonator, and prevent illegal use and abuse of the detonator; 3. By providing an ignition powder, the ignition powder is composed of a certain proportion of lead trinitroresorcinol and lead thiocyanate, which improves the delay accuracy and ignition reliability of the ignition powder. Lead trinitroresorcinol has high sensitivity and combustion performance. In the ignition powder, it can quickly respond to external stimuli such as electric current or heat, thereby initiating a combustion reaction. Its high sensitivity helps to reduce the ignition response time of the ignition agent. Lead thiocyanate plays a role in regulating the combustion speed and stability in the ignition powder. When used in combination with lead trinitroresorcinol, the performance of the ignition powder can be optimized. It can ensure a more stable combustion process, improve the delay accuracy of the ignition powder, and enable the detonator to be triggered in a shorter time; 4. By setting up the detonator, transitional explosive and high explosive, tricarbohydrazide zinc perchlorate is used as the detonator, Taian is used as the transitional explosive, and RDX is used as the high explosive. The detonator (tricarbohydrazide zinc perchlorate) usually has a higher sensitivity and is easily stimulated by the flame or energy generated by the ignition powder and detonates quickly. As the starting point of the entire explosion reaction, its function is to trigger the explosion of subsequent explosives and provide the initial energy for the detonation of the entire detonator. The transitional explosive (Taian) connects the detonator and the high explosive, plays a connecting role, further amplifies the explosion energy generated by the detonator, and transmits it to the high explosive. It can ensure the smooth transition of the explosion energy and improve the stability of the entire explosion process. High explosives (RDX) have high energy output and are the main component that produces strong explosive force. Under the initiation of the detonator and the transition explosive, the high explosive releases huge energy, providing the required strong source energy for applications such as seismic exploration, ensuring the working ability of the detonator. In addition, the characteristics of different explosives cooperate with each other to improve the overall stability of the detonator, making the explosion process of the detonator more controllable. By accurately controlling the energy of the ignition charge and the delay control module, it can be ensured that the detonator is detonated in a predetermined manner at the required time, thereby improving safety. 5. In summary, this type of electronic detonator for seismic exploration is provided with structures such as a conductor, a delay control module, an ignition charge, an explosive, a transitional explosive and a high explosive. The conductor is made of pure copper to ensure good electrical conductivity. The detonation time is accurately controlled by the delay control module, thereby improving the delay accuracy of the detonator. A certain proportion of lead trinitroresorcinol and lead thiocyanate is used as the ignition charge, RDX is used as the high explosive, Taian is used as the transitional explosive, and tricarbohydrazide zinc perchlorate is used as the explosive. The requirements for the safety, delay accuracy and working ability of the detonator in the process of seismic exploration are met, the reliable application of electronic detonators in seismic exploration is realized, and a strong guarantee is provided for obtaining high-quality seismic exploration data. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2It is a schematic diagram of the cross-sectional structure of the basic detonator of the present invention.
[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the reinforcement cap of the present invention.
[0017] Figure 4 It is a schematic diagram of the structure of the electronic ignition element of the present invention.
[0018] Figure 5 It is a schematic diagram of the front view and side view of the ignition charge of the present invention.
[0019] Figure 1-5 In: 1. Wire card; 2. Wire; 3. Electrode plug; 4. Delay control module; 5. Ignition powder; 6. Protective cover; 7. Tube shell; 8. Reinforcement cap; 9. Explosive; 10. Transition explosive; 11. High explosive; 12. Fire transfer hole; 13. Basic detonator; 14. Electronic ignition element; 15. Resistance port. DETAILED DESCRIPTION
[0020] The following will be combined with the attached embodiment of the present invention Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the present invention.
[0021] See also Figure 1-5In an embodiment of the present invention, an electronic detonator for seismic exploration comprises: a line card 1, a conductor 2 is arranged below the line card 1, a basic detonator 13 is arranged below the conductor 2, an electronic ignition element 14 is arranged between the conductor 2 and the basic detonator 13, an electrode plug 3 is injection-molded at the terminal of the conductor 2, a delay control module 4 is arranged at the bottom of the electrode plug 3, a tube shell 7 is arranged below the electrode plug 3, a built-in knife edge of the line card 1 is crimped and fixed with the conductor 2, the electronic ignition element 14 comprises an electrode plug 3, a delay control module 4, an ignition powder 5 and a protective cover 6, the basic detonator 13 is composed of a tube shell 7 and an interior thereof which is sequentially pressed from top to bottom with a priming powder 9, a transitional explosive 10 and a high explosive 11, a reinforcing cap 8 is pressed above the priming powder 9, a conductor 2 is penetrated through the electrode plug 3, and is connected to the delay control module 4. The block 4 is connected through the port, the terminal of the wire 2 passes through the electrode plug 3 and the outer skin and inner skin are peeled, the surface of the ignition powder 5 is nested with a protective cover 6, and there are two knife edges inside the wire clamp 1, which are used to crimp the two inner core wires of the wire 2 respectively, so that the wire 2 is connected to the detonating bus through the wire clamp 1, ensuring that the wire 2 is firmly connected to prevent loosening or falling off during use, and ensuring the stability of current transmission. The wire 2 is a pure copper wire with good conductivity, which can effectively transmit current and provide the electronic ignition element 14 and the basic detonator 13 with the electrical energy required for detonation. The basic detonator 13 is composed of a tube shell 7 with a press-fitted explosive 9, a transition explosive 10, and a high explosive 11, and finally a press-fitted reinforcing cap 8 on top of the explosive. The explosive 9 is usually more sensitive. The electronic ignition element 14 is high, and can be quickly ignited and detonated when stimulated by the flame or energy generated by the electronic ignition element 14. It is the starting point of the entire explosion reaction, and its function is to trigger the explosion of the subsequent explosives. The transition explosive 10 plays the role of connecting the detonator 9 and the high explosive 11. It can further amplify the explosion energy generated by the detonator 9 and transfer it to the high explosive 11 to ensure that the high explosive 11 can be reliably detonated. The high explosive 11 has high energy output and is the main component for generating a strong explosive force. Under the initiation of the detonator 9 and the transition explosive 10, the high explosive 11 releases huge energy to provide the required source energy for seismic exploration. The electronic ignition element 14 is composed of an electrode plug 3 and a delay control module 4 dipped in ignition powder 5 and applied with a protective sleeve 6. The electrode plug 3 is used as The delay control module 4 can accurately control the detonation time according to actual needs, which provides the possibility for synchronous detonation or detonation at a specific time in seismic exploration. The ignition powder 5 is ignited under the action of the current to generate a high-temperature flame, thereby triggering the explosion reaction of the basic detonator 13. The protective cover 6 protects the electronic ignition element 14 from being affected by external environmental factors such as moisture, dust, impact, etc., to ensure the stability and reliability of the performance of the electronic ignition element. When the external control device sends a detonation signal, the current is transmitted through the wire 2. Since the wire 2 is made of pure copper and has good conductivity, it can effectively transmit the electrical energy required for detonation to the inside of the electronic ignition element 14.The electrode plug 3 serves as the access point of the current, receives the external current and introduces it into the electronic ignition element 14. After the current enters the electronic ignition element 14, the delay control module 4 performs precise control according to the preset time requirements. In seismic exploration, synchronous detonation or specific time detonation can be achieved according to actual needs. During the delay process, the electronic ignition element 14 is in a state of waiting for excitation. When the delay is over, the delay control module 4 transmits the current to the ignition powder 5. The ignition powder 5 is ignited under the action of the current to generate a high-temperature flame. The high-temperature flame quickly triggers the detonator 9 in the basic detonator 13. Since the detonator 9 is highly sensitive, it can be quickly ignited and detonated when stimulated by flame or energy. The explosion of the detonator 9 serves as the starting point of the entire explosion reaction. The energy generated is successively transmitted to the transition explosive 10 and the high explosive 11. The transition explosive 10 further amplifies the explosion energy generated by the detonator 9 and transmits it to the high explosive 11. Under the initiation of the detonator 9 and the transition explosive 10, the high explosive 11 releases huge energy, providing the required source energy for seismic exploration.
[0022] In the embodiment of the present invention, the chip resistor of the delay control module 4 is dipped in ignition powder 5, the inner layer of the delay control module 4 is dipped in lead trinitroresorcinol, and the outer layer is dipped in lead thiocyanate. Lead trinitroresorcinol has certain chemical stability and specific combustion characteristics. In the delay control module, it can adjust the combustion speed of the ignition powder 5, thereby accurately controlling the delay time. Its stability can ensure that a relatively consistent delay effect can be maintained under different environmental conditions, thereby improving the accuracy of the detonator. The lead thiocyanate on the outer layer plays a role in further stabilizing and regulating combustion. It works synergistically with lead trinitroresorcinol to jointly control the combustion process of the ignition powder, making the delay time more accurate and reliable. At the same time, the presence of lead thiocyanate also enhances the anti-interference ability of the delay control module 4, thereby ensuring that the detonator can work stably in a complex seismic exploration environment, and realizing an overall improvement in the delay time and accuracy of the ignition powder 5, thereby satisfying the instantaneousness and consistency of the electronic detonator for seismic exploration.
[0023] In the embodiment of the present invention, a resistor port 15 is fixedly installed on the delay control module 4, and is connected to the inner core wire port of the wire 2 passing through the electrode plug 3 by riveting or welding. The resistor port 15 is fixedly installed on the delay control module 4, which provides a clear access point for the transmission of electrical signals. The design of this port makes the connection with the wire 2 more stable and reliable, reducing the signal transmission problem caused by loose connection. The inner core wire port of the wire 2 passing through the electrode plug 3 is connected to the resistor port 15 of the delay control module 4 by riveting or welding, which further enhances the firmness of the connection. Riveting can provide mechanical strength to ensure that the connection is not easily disconnected when subjected to external force; welding achieves low resistance and high stability of the electrical connection through the fusion of metals, ensuring that the electrical signal can be efficiently transmitted from the wire 2 to the delay control module 4.
[0024] In the embodiment of the present invention, a bayonet is provided on the bottom surface of the electrode plug 3, and the electrode plug 3 is bayoneted with the tube shell 7 through the bottom bayonet, and a fire transfer hole 12 is opened in the middle of the upper end of the reinforcing cap 8; the electrode plug 3 is bayoneted with the tube shell 7, which has high stability and sealing. The bayonet connection can ensure that the electrode plug 3 and the tube shell 7 are tightly combined and not easy to loosen or separate, thereby effectively preventing foreign substances from entering the detonator, realizing the isolation of the chip and the agent from the outside, and ensuring the quality of the electronic detonator for seismic exploration. The basic detonator 13 is the tube shell 7 press-fitted with hexachlorobenzene, tai'an and tricarbohydrazide zinc perchlorate. Hexachlorobenzene is a high-energy explosive with high explosive power; tai'an is also a commonly used explosive with good stability and explosive performance; tricarbohydrazide zinc perchlorate can play a specific role in the detonation process of the detonator, such as enhancing the explosive energy or improving the explosion. The reinforcing cap 8 with the fire transfer hole 12 is pressed and installed at last. The existence of the fire transfer hole 12 enables the flame to be smoothly transferred from the detonator to the subsequent explosive, so as to realize the flame transfer and the downward conduction of the detonation wave, and meet the safety and the working ability of the detonator. The tricarbonyl hydrazide zinc perchlorate is used as the detonator 9, the Taian is used as the transition explosive 10, and the RDX is used as the high explosive 11, forming an effective energy transfer and amplification chain, so that the detonator can generate powerful explosive energy in a smaller volume, and meet the demand for high energy output in applications such as seismic exploration. Moreover, according to the specific seismic exploration needs, the proportion and performance of the three explosives can be adjusted to adapt to different geological conditions, exploration depths and explosion effect requirements, providing strong explosion performance, good safety and reliability for the electronic detonator for seismic exploration, and adapting to the needs of different application scenarios.
[0025] In the embodiment of the present invention, the protective cover 6 is thermoplastic rubber and is nested and wrapped on the surface of the ignition powder 5; the protective cover 6 is applied to the ignition powder 5 and is heat blow molded. The thermoplastic rubber can be deformed to a certain extent to adapt to ignition powders of different shapes, provide tight wrapping, and effectively prevent damage to the ignition powder due to external forces such as bumps during transportation, storage and use. At the same time, thermoplastic rubber usually has good insulation properties, which can prevent the ignition powder from contacting external conductive materials, reduce the risk of accidental detonation, and achieve protection for the ignition powder 5. Moreover, the restraining effect of the protective cover 6 can concentrate the flame of the ignition powder 5. When the ignition powder is ignited, the flame is more concentratedly transmitted in a specific direction under the constraint of the protective cover 6, so that the energy is more concentratedly transmitted to the fire transfer hole 12, thereby improving the efficiency and reliability of ignition and ensuring the smooth progress of the detonation process.
[0026] Working principle: When in use, the detonation bus is connected to the line card 1, establishing a channel between the external detonating device and the electronic detonator. The detonation voltage is transmitted to the wire 2 through the line card 1. Due to the good conductivity of the wire 2, the voltage can be efficiently transmitted to the subsequent components. Then, through the riveted or welded resistance end, 15, the voltage is smoothly transmitted to the delay control module 4. In the delay control module 4, the built-in capacitor of the chip begins to charge. This process accumulates energy for the subsequent detonation action. When the quasi-explosion detonation signal is issued, the capacitor discharges the chip resistor. This discharge process generates local heat accumulation to ignite the inner layer of trinitroisophenylene in the delay control module 4. Lead diphenolate and the outer layer of lead thiocyanate provide energy conditions. After the inner layer of lead trinitroresorcinate and the outer layer of lead thiocyanate are ignited by local heat, the ignition powder 5 deflagrates to produce a flame. The flame is quickly transmitted through the fire transfer hole 12 of the reinforcing cap 8, first detonating the zinc perchlorate tricarbonyl hydrazide in the tube shell 7. The detonation of this explosive triggers a series of reactions, and the formed detonation wave is transmitted downward, acting on Taian and RDX in turn. This energy transfer and amplification process ensures the gradual enhancement of the explosion energy, and ultimately achieves the purpose of detonating the explosive, realizing the precise initiation of the electronic detonator for seismic exploration and the powerful explosion energy output, providing a reliable source for seismic exploration.
Claims
1. An electronic detonator for seismic exploration, comprising: A line card (1), a wire (2) is arranged below the line card (1), a basic detonator (13) is arranged below the wire (2), an electronic ignition element (14) is arranged between the wire (2) and the basic detonator (13), an electrode plug (3) is injection-molded at the terminal of the wire (2), a delay control module (4) is arranged at the bottom of the electrode plug (3), and a tube shell (7) is arranged below the electrode plug (3), characterized in that: the line card (1) has a built-in knife edge that is crimped and fixed to the wire (2), the electronic ignition element (14) includes an electrode plug (3), a delay control module (4), ignition powder (5) and a protective sleeve (6), and the basic detonator (13) is composed of a tube shell (7) and a combination of a priming charge (9), a transitional explosive (10) and a secondary explosive (11) pressed in sequence from top to bottom inside the tube shell (7), and a reinforcing cap (8) is pressed above the priming charge (9).
2. The electronic detonator for seismic exploration according to claim 1, characterized in that: The electrode plug (3) is penetrated by a wire (2) and is connected to the delay control module (4) via a port. The portion of the terminal of the wire (2) that passes through the electrode plug (3) is subjected to an outer skin and an inner skin peeling process.
3. The electronic detonator for seismic exploration according to claim 1, characterized in that: The chip resistor of the delay control module (4) is dipped in ignition powder (5), and a protective cover (6) is nested on the surface of the ignition powder (5).
4. The electronic detonator for seismic exploration according to claim 3, characterized in that: The delay control module (4) is fixedly provided with a resistance port (15), which is connected to the inner core wire port of the wire (2) passing through the electrode plug (3) by riveting or welding.
5. The electronic detonator for seismic exploration according to claim 1, characterized in that: The bottom surface of the electrode plug (3) is provided with a snap-in, and the electrode plug (3) is snap-connected to the tube shell (7) via the bottom snap-in.
6. The electronic detonator for seismic exploration according to claim 1, characterized in that: The protective sleeve (6) is made of thermoplastic rubber and is nested and wrapped around the surface of the ignition powder (5).
7. The electronic detonator for seismic exploration according to claim 1, characterized in that: A fire transmission hole (12) is provided in the middle of the upper end of the reinforcing cap (8).