Intelligent selective trigger switch and initiation system

Abstract

The invention discloses an intelligent selective trigger switch which comprises a power supply anti-reverse connection module, an initiation processing module, a rear-stage power supply control module, a communication module, a power supply module and a processor module. The power supply anti-reverse connection module is used for preventing two power supply input lines of the intelligent selectivetrigger switch from reverse connection; the initiation processing module is used for completing the initiation processing process of a detonator; the rear-stage power supply control module is used for controlling the voltage of all stages of selective trigger switches to be the same; the communication module is used for realizing the bidirectional communication function between the intelligent selective trigger switch and an initiator; the power supply module is used for reducing the input voltage of the intelligent selective trigger switch to a voltage value at which each module can stably work; and the processor module is used for controlling and/or receiving instruction information of each module. The intelligent selective trigger switch realizes bidirectional communication between theselective trigger switch and the initiator, and has the advantages of gradual power supply, serial network and bus short circuit fault prevention. The invention also discloses an initiation system applying the intelligent selective trigger switch.

Description

technical field [0001] This application relates to the field of detonation control technology for shale perforating detonators, in particular to an intelligent selective firing switch and a detonation system. Background technique [0002] As the difficulty and accuracy of shale oil and gas exploration and exploitation become higher and higher, the equipment for shale oil and gas exploration and exploitation is also becoming more and more mature. At present, a key technology in the completion of shale oil and gas production is shale perforation technology, but the initiation system of the high-pressure and high-temperature detonator used in shale perforation technology is too simple and the reliability is not high. The detonator detonation unit mainly includes a diode pressure switch and a magnetoelectric switch. Higher-end equipment still needs to be imported, and the cost is relatively high. [0003] In the prior art, the multi-stage detonation technology of a single-core ...

AI Technical Summary

Problems solved by technology

Among them, the mechanical structure of the step-by-step detonation of the pressure switch is complex, and the detonation of the magnetoelectric switch is large in size and complex in structural design, and neither of the two detonation methods can realize random detonation of multi-stage detonators, step-by-step power supply, and over-current detection. Realize the two-way communication between the selector switch and the detonator, and do not have the function of preventing bus short-circuit faults and fault alarms

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