Overview
vHot reads cdp gathers and
produces four types of display:
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Mute and velocity functions can be picked
from the displays as appropriate.
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Velocity Functions
vHot generalizes conventional dynamic corrections by
allowing velocity passband functions ...
Where the traces are dominated by coherent
noise, the functions should be picked so as to exclude this noise. This apart,
the velocity bands can be chosen arbitrarily wide - the stack will be at least
as good as any conventional stack. vHot
frees you from having to pick detailed velocity functions.
The displays are optionally colour–coded by velocity. Each such stack display
will then show the estimated velocity at each stacked sample. The intensity of
each colour is proportional to the coherence at the corresponding sample. These
stack displays provide an immediate and striking view of the velocity field.
Here, a mute is picked, and a velocity
function is chosen that excludes slower events ...
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Stretch free NMO
By using vHot, nmo stretch can be made insignificant – compare
conventional nmo corrections with vHot’s
corrections:
