Electronic digital detonator remote blast system and method thereof

Abstract

The invention discloses an electronic digital detonator remote blast system and a method thereof. The electronic digital detonator remote blast system comprises an encoder, a decoder and an exploder. The encoder converts a starting command sent by a seismometer into an excitation command of ignition and sends to the decoder. When detecting that detonation preparation is completed, the decoder forms a closed loop according to the excitation command and generates a high-voltage pulse signal to the exploder. When detecting a rising edge of the high-voltage pulse signal, the exploder outputs a detonation pulse so as to make an electronic digital detonator detonate. Simultaneously, the electronic digital detonator returns a CTB pulse to the exploder before a detonation moment. The exploder makes the decoder form a discharge loop according to a simulated CTB pulse. The decoder generates a CTB signal to the encoder. Through using a detonation control mode of the closed loop, an effect that an exploration detonator has an error and is not stable during a detonation process can be solved so that a consistency requirement between address exploration detonation and signal acquisition is greatly increased.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to an electronic digital detonator remote blasting system and a method thereof. Background technique [0002] The remote explosion system used in oil exploration is mainly composed of seismograph, PC, encoder, decoder and so on. The synchronization index of encoder and decoder is the key parameter of the remote explosion system. Since the existing remote detonation system is specially designed for electric detonators, the standard design of electric detonators is adopted in the detonation mode, operation mode and networking mode. The detonation method, operation mode, and networking method of electronic digital detonators are very different from those of electric detonators. In order to meet the demand for electronic digital detonators in seismic exploration, on the basis of the existing geophysical remote detonation system, without changing the encoder and decoder, ...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the object of the present invention is to provide an electronic digital detonator remote detonation system and its method, aiming to solve the problem of unstable errors in the existing exploration feature detonation operation software

Images