A leading manufacturer of Kinetic Mesh® wireless networks and ESG Solutions, a provider of fracture repair solutions for oil and gas and mining, have collaborated to successfully deliver seismic reflection measurements to the surface using the Rajant backbone.
Customers in both deep and accessible mining will benefit from the installation trials that both businesses will begin in October as the final stage in the certification process.
Scientists may better understand rock mass deformation by examining 3D seismic data from rock bursts and microseismic events collected in many mines. With ESG Paladin® data acquisition devices in junction boxes, ESG Solutions installs microseismic systems that rely on sensors (geophones and accelerometers) to capture digital seismic waveforms. For optimal seismic event location identification, each Paladin® unit must be precisely time-synchronized across the network.
Fiber-optic networks are being used to transfer data and system timing signals to and from the Paladin units. Clients have been wondering if our systems might run on a wireless system to save money on initial system expenses and continuing fiber system maintenance,” says Tony Butler, ESG’s Technical Sales Advisor. Wirelessly monitoring microseismic activity has been difficult due to the inability of seismic systems to achieve reliable time synchronization. We address the time synchronization issue with Rajant Kinetic Mesh by completing Precision Timing Protocol (PTP) system timing of 30 microseconds ( 10 microseconds) for networked Paladins. Rajant and ESG have proven in the lab that they can hop across the Kinetic Mesh seven times while maintaining exact system timing.
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This advancement will allow Rajant’s wireless network to be evaluated for field monitoring of microseismic systems with sampling rates up to 10 kHz. For the great majority of microseismic methods that employ geophones and accelerometers, this system timing precision is more than adequate.”