Use of drill bit energy for tomographic modeling of near...

Details Use of drill bit energy for tomographic modeling of near... Use of drill bit energy for tomographic modeling of near...

2005-03-15

2005-03-15

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C367S040000, C367S042000, C367S057000, C367S073000

Reexamination Certificate

active

06868037

ABSTRACT:
A method for tomographic modeling of seismic wave travel times from well drilling records generated by drill string vibrations during drilling and identifying in the recorded vibration at least one of direct, reflected, refracted, converted and diving waves so as to measure wave velocity in near surface layers.

REFERENCES:
patent: 5103429 (1992-04-01), Gelchinsky
patent: 5109947 (1992-05-01), Rector, III
patent: 5151882 (1992-09-01), Kingman
patent: 5191557 (1993-03-01), Rector et al.

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