De-noising Vibroseis The contention is that the correlated Vibroseis field record (to the far left)...
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De-noising Vibroseis The contention is that the correlated Vibroseis field record (to the far left) is a mess of overlapping coherent noise and signal,
De-noising Vibroseis The contention is that the correlated
Vibroseis field record (to the far left) is a mess of overlapping
coherent noise and signal, the noise being strong enough to control
the stack. On first glance, one would think there is a serious
statics problem, but once the non-linear process lifts off most of
the noise (to the right), we see that statics are not involved. No
event shifting was used so the resolution of this jaggedness proves
the presence of the noise, as well as the removal effectiveness..
The operative target is below the red line. The goal is delineation
of a series of coal beds. As you will see when you continue through
the 14 adjacent points, the logic was consistent on its very
selective event selection. Note here how it took out the leading
lobes just below the red line and then emphasized the ones just
below. Once again, the initial jaggedness was the result of the
intricate overlay of noise and signal, and eliminating that
phenomenon is the essential proof of the logic. The fact that what
comes out exhibits the proper event shape is the final
verification, since we are not smart enough to force that result.
This is a timed show, so relax and pay attention to the detail.
Clicking will speed it of course.
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Allow them time to load! A PowerPoint compendium of seismic
topics.
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Basic reflection theory the experts seemed to have missed.
Inversion and integration the all important sonic log simulation.
Coherent noise background an explanation of types. Removal of
coherent noise on Gulf Coast a breakthrough. Vibroseis de-noising
another (but similar) breakthrough. Strike slip faulting salt dome
association new thinking. North Sea strike slip interpretation the
importance of resolution. About Paige - MS in geology,spent 7 years
in Venezuela for Mobil,& then Phillips Maracaibo interpretation
found Phillips major field there. Back to states, joined Phillips
computing, became project manager for exploration. Hired by Western
Geo. To start digital operations in Shreveport. Wrote first
predictive deconvolution program that put Western on the map in
digital processing (and formed the non-linear basis for later ADAPS
software), After brief sojourn in commercial processing (where he
wrote a table driven programming system), joined Dresser Olympic as
both manager of processing and of research. Went on his own to
start non=linear development. Consulting package consists of Paiges
personal time, his open-ended software and use of his processing
hardware. Unless full segy detail is requested (segy output), the
product is a series of PowerPoint studies. He can be reached at
[email protected]@sbcglobal.net Click on this oval to
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