DEVICE FOR MONITORING COMPLETENESS OF OPERATION OF DETONATORS DURING BLASTING OPERATIONS IN OIL AND GAS INDUSTRY Russian patent published in 2025 - IPC F42D5/02 F42C21/00 G01H9/00 

FIELD: measuring.

SUBSTANCE: invention relates to instrumentation and can be used to record actuation of all types of detonators. Device comprises transmitting and receiving units connected to each other by means of wireless communication or interconnect cable. Transmitting unit comprises a housing with microcontroller U2 installed in it and data converter microcircuits U4 connected to it, RS-485 interface, data converter U3, made on NRF24L01 microcircuit, performing data conversion and transmission at frequency 2.4 GHz, LED indicator P2 and current-limiting LED R1, power supply system made on step-up and step-down pulse converters P7 and P6, respectively, linear stabilizer U1, diodes VD1, VD2, VD3, VD4, connected as per gate circuit. In the power supply circuit, a U-shaped filter circuit is used on capacitors C1, C2, C3, C4 and a choke L1, connector P1 for connecting the interunit cable, resistors R2 and R3 are connected according to the voltage divider circuit, built-in accumulator P9 equipped with charging module P8, amplifier unit comprising a seismic sensor GEOFON P5 and an amplifier board made on transistor VT1, connected in amplification mode, and containing a thermal stabilization unit made on resistor R6 and capacitor C5, resistor R4, trimming resistor R5 for setting bias voltage on the basis of transistor VT1. Receiving unit comprises a housing with a microcontroller U2 installed in it and data converter microcircuits U4 connected to it for transmission via RS-485 interface, U3 of the output path – a data converter based on the NRF24L01 microcircuit, which converts and transmits data at frequency of 2.4 GHz, power supply circuit employs a U-shaped filter circuit on capacitors C1, C2, C3, C4 and a choke L1, a light-emitting diode P1 and a current-limiting resistor R1, a USB connector X1 for connecting a computer. Receiving unit has a USB-UART converter P4, a connector P3 for connecting an interunit cable.

EFFECT: increased safety at control and registration of actuation of all types of detonators lowered on tubing string or geophysical cable.

1 cl, 5 dwg