NAME

     ppg2psi - converts pressure gradient  data  (PPG  units)  to
     pressure or pressure above normal (PSI units).

SYNOPSIS

     ppg2psi [-N ntap] [-O otap] [-dz dz] [-mode mode] [-nhg ngh]
     [-met] [-V] [-?]  [-h]

DESCRIPTION

     ppg2psi will create an output pressure which is  technically
     "guage"  pressure  since  pressure  at depth=0 is 0 PSI, not
     atmospheric.

  Command line arguments
     -Nntap
          Enter the name of the input pressure gradient dataset.

     -Ootap
          Enter the name of the output pressure dataset.

     -dzdz
          Enter the depth sample interval.

     -nhg nhg
          Enter the  normal  hydrostatic  gradient  after  typing
          -nhg.  The  default is .46 which is correct for the USA
          Gulf Coast area.  This value is required for mode=2.

     -met If this flag is present on the command  line,  it  will
          indicate  that  the  depth  sample  rate from the input
          overburden gradient dataset is in meters/second.

     -eng If this flag is present on the command  line,  it  will
          indicate  that  the  depth  sample  rate from the input
          overburden gradient dataset is in feet/second.

          Note:  Units must be specified on the command line.

     -V   Enter the command line argument '-V' to get  additional
          printout.

     -?   Enter this (or '-?' if you are running in  c-shell)  to
          get  online  help.   The  program  will terminate after
          printing this.

     -h   Enter this option to get online help.  The program will
          terminate after printing this.

SEE ALSO

     pptrn, vel2den, ppdenobg, ppetn, pptrnehz, ppg2psi, psi2ppg,
     ppfilt, psifilt3, ptop, fillhdr, gradfilt, mshowray

BUGS

     None known.

AUTHORS

     N. D. Whitmore, Jr., Mary Ann Thornton, Martin L. Albertin.

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.