Self-adaptive intelligent selector switch for detonating underground perforating detonator

Abstract

The invention discloses a self-adaptive intelligent selector switch for detonating an underground perforating detonator. The problems that an existing intelligent selector switch is complex in wiringmodes and needs to manually distinguish the type of the detonator are mainly solved. The self-adaptive intelligent selector switch comprises a communication transceiving module for processing signalsin a modulation and demodulation mode, a temperature sensor, a power supply voltage acquisition circuit, a downward power supply driving circuit, a detonator excitation circuit, detonator type identification modules and output type selection switches, wherein the detonator type identification modules and the output type selection switches are arranged between a microprocessor and an output port. The intelligent selector switch has an independent fixed address and can be switched on step by step to form a multi-stage selector switch, one independent detonator type identification module is arranged on each stage of selector switch, and the communication work of an output line and the detonator excitation circuit of the corresponding type is completed according to an identification result. According to the self-adaptive intelligent selector switch for detonating the underground perforating detonator, the on-site working efficiency is effectively improved, the wiring mode is simplified, and multiple types of detonators can be detonated in a self-adaptive mode under the condition of not introducing manual operation.

Description

technical field [0001] The invention belongs to the technical field of oil and gas exploitation, and further relates to downhole perforation intelligent control technology, in particular to an adaptive intelligent selective firing switch for downhole perforation detonator detonation, which can be used for downhole equipment for oil and gas fields. Background technique [0002] The combination of bridge plug and perforation is the most widely used perforation completion method in the development of unconventional oil and gas reservoirs, which can effectively increase the single well production. The cable-conveyed bridge-shooting technology utilizes cable pumping to complete bridge plug setting and multi-cluster perforation in one downhole. It is not limited by the number of staged fracturing layers, the tool string is simple, it is not easy to cause sand jams, and it is quick to remove plugging , Single well stimulation effect is obvious and many other advantages. In recent ...

AI Technical Summary

Problems solved by technology

However, the following deficiencies still exist: 1. The wiring is complicated, and the large resistance detonator and the magnetoelectric detonator need to be divided into two output lines; 2. Some selective firing switches can only detonate a single type of detonator; to differentiate, introducing the error probability

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