
     time domain modeling
     in a whole space with one boundary
     for a horizontal well

     by Tilman Hanstein, KMSTechnologies,    25 June 2001
     for Richard Ostermeier, Shell


two folders with data:
----------------------
1)  brain_model:
    transmitter and receiver is in upper halfspace with 10 Ohm-m
    conductor in lower halfspace with 1 Ohm-m

2)  salt_model:
    transmitter and receiver is in upper conductive halfspace with 1 Ohm-m
    the lower halfspace is resistive with 10 Ohm-m


filename convention
-------------------

HzzBd??R??.dat,  HxxBd??R??.dat,   HxzBd??R??.dat

HzzSd??R??.dat,  HxxSd??R??.dat,   HxzSd??R??.dat


Hzz = coplanar
Hxx = coaxial
Hxz = perpendicular, cross-component

B = brain model, transmitter in 10 Ohm-m halfpsace,
                 conductor is 1 Ohm-m halfspace in depth ??

S = salt model, transmitter in 1 Ohm-m conductive halfpsace,
                resistive layer is 10 Ohm-m halfspace in depth ??

d?? = depth or distance to boundary
R?? = transmitter-receiver offset

??  = 01, 05, 10, 25, 50 m   numbers for depth or offset



file extensions:
----------------

.dat   ascii data files, see above
.plt   plotting file for gnuplot (public domain plotting software)
.ps    postscript files

.exe   executable file for hzz, hxx, hxz
.inp   input files for executable programs
.bat   batch job for file name changes


plotted data as postscript file:
--------------------------------
*.ps  the postscript file can direct send to a postscript printer
      or visualized with GHOSTVIEW (gnu public domain software)


two folders for plotting and visualizing with GNU-software
----------------------------------------------------------
this is recomended
1)  for visualizing and printing postscript files
\gstools\gsview\gsview32.exe

more for specialists:
2) for plotting data with
\wingnu\wingnupl32.exe
load "hzzbr??.plt



if you run your own jobs in DOS-window:
---------------------------------------
example for running a job
1)coplanar:
hzz < hzzb.inp
p2hzz
2)coaxial:
hxx < hxxb.inp
a2hxx
3) perpendicular/cross
hxz < hxzb.inp
c2hxz

you can run other models, if you change input file.
executable programs can only handle filenames with max. 8 letters + extension
you can run also the program without input file
stop with a point for filename
