NAME

     hdrfil - Fill a traceheader location from a plane of  trace-
     header values

SYNOPSIS

     hdrfil [-Nntap] [-N2ntap2] [-Ootap] [-nsns] [-nene] [-rsirs]
     [-reire] [-keykeyword] [-V] [-?]  [-h]

DESCRIPTION

     hdrfil will read  two  datasets:  (1)  a  USP  formatted  3D
     seismic  dataset,  and  (2)  a USP dataset containing trace-
     header values where the samples per trace match  the  number
     of  traces per record of the seismic input data. Each sample
     of trace one will contain a traceheader value to be inserted
     into  the  "keyword" location of each trace on record one of
     the seismic data.  The number of traces per record  of  this
     dataset  should  match  the number of records on the seismic
     dataset.  See manual pages for hdrext for an explanation  of
     a  way  to create a plane of traceheader values. hdrfil gets
     its dataset names and its parameters from command line argu-
     ments.

  Command line arguments
     -Nntap
          Enter the name of the input seismic dataset after  typ-
          ing  -N.   This  input file should include the complete
          path name if the file resides in a different directory.
          Example  -N/b/vsp/dummy  tells  the program to look for
          file 'dummy' in directory 'vsp' stored on the 'b' disk.

     -N2ntap2
          Enter the name of  the  input  dataset  containing  the
          traceheader  values  after  typing -N2. This input file
          should  include  the  complete  pathname  as  explained
          above.

     -Ootap
          Enter the name of the output dataset after  typing  -O.
          This  dataset  also  requires  the  full  pathname (see
          above).

     -nsns
          Enter the trace number of the first  trace  to  process
          after  typing  -ns.   The  default  is to use the first
          trace of the record.

     -nene
          Enter the trace number of the  last  trace  to  process
          after typing -ne.  The default is to use the last trace
          of the record.


     -rsirs
          Enter the record number of the first record to  process
          after  typing  -rs.   The  default  is to use the first
          record of the dataset.

     -reire
          Enter the record number of the last record  to  process
          after  typing  -re.   The  default  is  to use the last
          record of the dataset.

     -keykeyword
          Enter the keyword to be filled after typing -key.

     -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

     hdrext

BUGS

     None known.

AUTHOR

     Mary Ann Thornton

COPYRIGHT

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