Patent ID: 6076045
Filing Date: 2000-06-13
Classification: G01V

Abstract:
A method of seismic prospecting in a formation crossed by at least one well, said method comprising:transmitting seismic waves into the formation,receiving, by at least one three-axis seismic sensor placed in the well and coupled with the formation surrounding the well, seismic data corresponding respectively to components along the three axes of seismic waves reflected by discontinuities in the formation in response to the transmitted seismic waves,assigning to the seismic data orientation data defining the orientation in space of the at least one three-axis seismic sensor,applying in parallel to the seismic data corresponding to the three components processing operators allowing selection, from polarized waves received at each three-axis sensor, of P or S seismic waves useful for characterization of the formation in a neighborhood of the well,locating in space, at each three-axis seismic sensor, respective origin directions of the polarized waves, andpositioning in space each one of the seismic events having generated the polarized waves.