Dear Sunix users:
Do you have any advice on the correct use of seg2segy? What am I not
understanding?
Any words of wisdom would be most helpful. Thanks in advance, Juan
PROBLEM
I am having difficulty converting SEG2 formatted files into SEGY and SU
files.
INSTRUCTIONS:
seg2segy 2.dat 1 > 2.sgy (BAD)
segyread tape=2.sgy >2.su (BAD)
suximage < 2.su & (BAD)
suximage < 2_clean.su (GOOD)
VISUAL RESULTS
Screenshot shows GOOD on left and BAD on right
SYSTEMS and SOFTWARE USED
cwp_su_all_44R4
CentOS8 linux box
cygwin (64) on Windows10.
FILES ATTACHED
2.dat (a SEG2 file from a Geometrics box)
2.sgy, 2.su
2_clean.su
Screenshot in png format of suximage-generated plots.
NOTES:
-For reference, I converted a test file (2.dat) successfully from SEG2
to SU format using sioseis under CentOS8
This "GOOD" file is 2_clean.su
-"BAD" means that I am able to obtain a plot which shows amplitudes that
seem too large-- with streaks
about the middle of the plot(file)
-"BAD" means that I can read the trace header values in HEX, the numbers
are correct
but that the data values seem too large.
-When I convert from seg2segy I get data value warnings (=0 and < 0),
and the data format appears to be in 4-byte integer
style.
-I have tried changed "scale" values in seg2segy.c and recompiling but I
still get poor results.