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Microseismic Monitoring of Mines in Real Time with Ensemble Kalman Filter
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 81st EAGE Conference and Exhibition 2019, Jun 2019, Volume 2019, p.1 - 5
Abstract
Microseismic monitoring is a widely used technique which over the last 20 years, has evolved from just a research topic to an essential tool for mining-security. Sudden and violent releases of energy stored in the rock mass are induced by mining activity, and are a persistent threat to mine safety. To effectively monitor the microseismic activity of a mine, two key elements are needed: a good seismic velocity model that can be used to determine the location of events, and an efficient way to incorporate each new event caused by mining activity to our model, in order improve our knowledge of the mine.
This work outlines a general framework for efficiently update velocity models combing Sequential Gaussian Simulation and Ensemble Kalman Filter techniques, facilitating real time monitoring of mines. This scheme aims to constitute a tool for helping take decisions related to workers safety and production, among others.