Passive Infra-Frequency Microseismic Technology – Experience and Problems of Practical Use

Infra-frequency microseismic technology ANCHAR is based on the analysis of microseismic background of the Earth and is designed for prediction of oil bearing of formation rocks. Based on the 15-year experience of applying the microseismic technology to prediction of oil and gas, authors analyze the problems arising in microseismic technologies based on the use of amplitude characteristics (AC) of microseismic. Proposed is a new criterion based on the statistical analysis of displacement vector of the microseismic background considered as random time series (EC). Demonstrated is its benefits, particularly, better daily reproducibility as compared to approaches based on amplitude characteristics. Presented are case studies of applying the infra-frequency microseismic technology in hard-to-access areas of West Siberia in Russia and examples of ANCHAR applications in other world regions.<br><br>