Monitoring a microseismic event

Details Monitoring a microseismic event Monitoring a microseismic event

2005-02-15

2005-02-15

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C367S043000, C702S017000

Reexamination Certificate

active

06856575

ABSTRACT:
A method of monitoring a microseismic event includes detecting the event to produce a first signal dependent on the event. The first signal includes noise at a frequency of, for example 50 Hz. A first sample of the first signal is taken. Then a second sample of the first signal is taken, the second sample occurring n/f seconds after the first sample, where n is an integer (e.g. 1). Subtracting the first and second samples from each other produces a farther signal dependent on the event in which the noise has been at least partly compensated for.

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