-
Given a oneway time depth pairs, a quadratic function is fitted
resulting in 3 coefficients, a0, a1, and a2 -
Given seismic horizon as an x, y, z file, ztqsegy.py
will convert the horizon from time to depth or depth to time. -
Quadratic coefficients can be just one set or supplied as three
columns in one file or in three seperate files. -
Probabilities in the depth is computed from the computed
P10, P50, and P90 of the corresponding coefficients. -
ztqsegy.py can also read in a segy in time or depth and convert
that outputting another segy in the other domain.
To integrate this program with the output of Machine learning, an option to supply a sonic dt segy is given. This sonic dt segy would have been generated with
trace2log2mbprogram.
If a time segy and a sonic segy is given then depth conversion will use both to generate a depth segy.
Because the sonic segy is usually noisy, you might want to smooth the resulting depth segy by using
--smoothradiusoption. The radius would spatially smooth all the samples around the center and use the median.