Nonlinear Processing Methods for Detection and Location of Microseismic Events

In this talk, I review some nonlinear processing methods from earthquake seismology and introduce new ones. The applications shown will include
· Nonlinear stacking methods and detection of weak events
· Nonlinear stacking methods robust to polarity reversals
· Iterative detection and correction of polarity reversed traces under poor SNR conditions
· Detection of polarity reversals along a seismic horizon under poor SNR conditions
I will illustrate the methods using synthetic and real microseismic data examples.

This talk is on joint work with my colleagues Tony Probert, Dan Raymer and Julian Drew.