HARDWARE-SOFTWARE SYSTEM FOR MICROSEISMIC MONITORING OF OIL AND GAS FIELDS DEVELOPMENT Russian patent published in 2023 - IPC G01V1/28 E21B43/26 G01V1/16 G01V1/18 G01V1/22 

FIELD: oil production.

SUBSTANCE: invention can be used in microseismic monitoring (MM) recording systems during surface monitoring of a hydraulic fracturing (HF) operation. The hardware-software system (HSS) of microseismic monitoring includes a personal computer or a mobile device of the hydraulic fracturing operator that controls the HSS operation mode, visualizes the processed MM data in real time, sends control commands to a local server and / or a remote server that collects and specialized MM data processing, N digital seismometers for registration in three orthogonal directions X, Y, Z of seismic activity excited during hydraulic fracturing, which are connected to a local server through the corresponding N Wi-Fi access points and a local wireless network access switch for control and collection of MM data. Each digital seismometer includes a series-connected seismic receiver, a unit for control and registration of microseismic signals, a processor unit, placed in a single housing, and in the seismic receiver there are three units of microseismic signal receivers (MSR), orthogonally oriented in the X, Y, Z directions. Each MSR unit includes N geophones, which, through the corresponding N instrumental amplifiers, are connected to an adder connected through an inverse filter, consisting of two series-connected bandpass integrators, configured to operate in the frequency band from the lower cutoff frequency ω1 to geophone natural frequency ω0, and a high-pass filter with an analogue-to-digital converter driver connected to a voltage reference. N digital seismometers are connected to a remote server through the corresponding N Wi-Fi access points, an access switch and a router that has the ability to access the Internet and connects the remote server to the local wireless network through a VPN tunnel.

EFFECT: expanding the operational capabilities of the HSS microseismic control.

12 cl, 9 dwg