gensetg - BSU INTERACTIVE program creates files for setting geometry where phones fixed, shots move (reciprocal shooting).
gensetg [ -h ]
Basic Seismic Utilities (BSU) program creates control files which direct the setting of geometry. Data files are related to a survey file (*.nez) by two text files, one for shots, the other for geophones. The shots.txt file consists of 2 columns. The first column is a data file name (*.seg, these files would be generated by egg2seg for example). The second column is the survey flag name (SP01 for example). The phones.txt file relates specific channel numbers to survey locations. The first column is channel number, the second column is the corresponding survey flag number (like VP12). This program is designed for reciprocal refraction shooting, where the phones are stationary (for example on the river banks in a bridge survey), and the shots move (perhaps across a river). IT IS NOT DESIGNED FOR CDP WORK . This program should be run before setgeom. This program is well suited to situations where a number of jumpers are employed to locate blocks of geophones at specific, fixed locations. C-Language Version.
Options
|
-h |
Online help giving describes use of interactive program. |
EXAMPLE
INTERACTIVE RUN:
Assume that you have a survey file (*.nez) which gives the
coordinates of shots with a label prefix of "SP"
and geophones with a label prefix "VP".
[pm@dell]$ gensetg
SHOTS: ---------------------------
Enter first shot file NAME number
1001
Enter last shot file NAME number
1004
Enter first SP label NUMBER
01
Enter increment for SP label NUMBER
01
PHONES: ---------------------------
Enter number of BLOCKS to define channels
2
BLOCK Number------- 1
Channels (1) through (?)
Enter last channel for this block
12
Enter first label VP NUMBER for this block
01
Enter label VP increment for this block
01
BLOCK Number------- 2
Channels (13) through (?)
Enter last channel for this block
24
Enter first label VP NUMBER for this block
50
Enter label VP increment for this block
1
The above sequence produces the following shot.txt file:
1001.seg SP01
1002.seg SP02
1003.seg SP03
1004.seg SP04
The following phones.txt file is produced which describes two blocks of geophone layouts.
01 VP01
02 VP02
03 VP03
04 VP04
05 VP05
06 VP06
07 VP07
08 VP08
09 VP09
10 VP10
11 VP11
12 VP12
13 VP50
14 VP51
15 VP52
16 VP53
17 VP54
18 VP55
19 VP56
20 VP57
21 VP58
22 VP59
23 VP60
24 VP61
shots.txt
Shots control file.
phones.txt
Phones control file.
bhelp(1), setgeom(1), egg2seg(1), c_bsegy(5)
no known bugs.
Copyright © 2017 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. <pm@cgiss.boisestate.edu>