Яндекс.Метрика

L. Eponeshnikova, P. Dergach, A. Duchkov

Том: 82nd EAGE Annual Conference and Exhibition Workshop Programme (Amsterdam, The Netherlands, December 8-11, 2020): Abstracts
Том: 2020 , Год издания: 2020
Многотомное издание: 82nd EAGE Annual Conference and Exhibition Workshop Programme (Amsterdam, The Netherlands, December 8-11, 2020): Abstracts
Место издания: Amsterdam
Страницы: 1-5

Аннотация

This work is devoted to improving technology and conducting microseismic monitoring of mineral deposits by choosing the optimal low-cost seismic equipment. During the last few years much progress has been made in the development and production of seismic exploration geophones. There are modifications with natural frequency values 4.5-5 Hz and an increased sensitivity of about 100 V/m/s. The problems that are solved by monitoring of weak local seismicity (where it is sufficient to ensure the registration of frequencies above 0.5-1 Hz), become important. However, these values are still below the operating frequency band of a standard geophone. In this paper, we consider low-frequency deconvolution method to expand operating frequency band of geophones. Then, authors discussed the need for careful choice of low-noise digitizer. It is proposed a method for estimation of digitizer's self noises - calculation of Power Spectral Dencity. The using of cheaper equipment (compared with seismological devices) will help significantly reduce the cost of microseismic monitoring and increase the number of observation points.
индекс в базе ИАЦ: 040023