btor - BSU program to transfer geophone azimuths to bsegy headers
btor [ -h | lstfil | prfx | isw1 | maxtr ]
Basic Seismic Utilities (BSU) to transfer horizontal geophone azimuths from a file to the bsegy headers of a VSP data set. The data files to be processed should follow the bsegy naming convention (1 alpha numeric prefix character, followed by a sequence number, followed by .seg). The sequence number in the file name also appears as the file number (first column of triplets). The usual application is to first determine the down-hole geophone orientations by PCA analysis (bhod) and then use the file produced from that process, bhod.lst, in the btor run (bhod.lst is specified by lstfil). The file produced from the hodogram analysis will consist of [file number, R-azimuth, and T-azimuth] triplets. Code is in Fortran 77.
Options
|
-h |
Online help giving details on command line arguments | ||
|
lstfil |
Input file name with triplets (sequence number, R-azimuth, T-azimuth). | ||
|
prfx |
Character prefix for file names to be processed. | ||
|
isw1 |
Switch to control application for different source patterns. |
0=Apply to headers of sequence
number file (typical
vertical hammer source).
-1=Apply to headers of sequence number file and one less
than sequence number.
(Typical for horizontal hammer source).
+1=Apply to headers of sequence
number file and one more
than sequence number.
(Typical for horizontal hammer source).
|
maxtr |
Maximum number of traces in a shot record (must be either 6 or 7) |
6=3 down-hole, 3 up-hole reference phone
7=3 down-hole, 3 up-hole reference, 1 Load Cell on hammer
NOTE:
If invoked with no options, will prompt user for input
parameters.
EXAMPLE:
btor bhod.lst w -1 6
There are 6 traces per record, triplets in file bhod.lst, file names constructed from sequence number (first column in bhod.lst file). The sequence numbers would be 2, 4, 6,... and files processed would be numbered w002.seg, w001.seg, w004.seg, w003.seg, etc.
btorxxxx.seg
Output data sets. Named according to convention (first 4char btor, the next 4char are the first 4char of the input file name, suffix .seg)
standard output
produces a progress bar
btorbhod.lst
Echo check of input parameters in listing file.
bhelp(1), bsegy(5), bhod(1), brot(1), polarity(5)
no known bugs
Copyright © 2024 by Paul Michaels
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
P. Michaels, PE. <[email protected]>