System and method for determining formation slowness

Details System and method for determining formation slowness System and method for determining formation slowness

2006-03-14

2006-03-14

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

C367S029000

Reexamination Certificate

active

07013217

ABSTRACT:
The invention provides techniques for calculating velocity from sonic signals with an improved signal to noise ratio, accuracy and certainty of result. Multichannel coherence measures are calculated from sonic transmitter signals and averaged to produce an average coherence measure. The formation slowness is determined from the averaged coherence measure.

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