Application of Nonlinear Dynamics Methods to Study of Relationship Betwee Seismic Emission and Change of Pore Pressure

摘要

In this paper it is proposed to apply methods of nonlinear dynamics to analyzing of microseismic emission data. A porous medium saturated with fluid is considered as multivariate automodel system. The process of microseismic emission is simulated in laboratory conditions and acoustic emission data are obtained from a laboratory experiment. These data are used to establish the fact of attractor existence in the phase space and to calculate correlated attractor dimensions. As a result the deterministic nature of acoustic emission process is established and the number of essential variables describing the system on the asymptotic stage is determined.