Listing 1. Log Data File

~Version Information
VERS. 2.00 :CWLS Log ASCII Standard - Version 
2.000000

 WRAP.    NO         :One line per depth step
#
~WELL Information Block
 STRT.M                     177.0888 :Start Depth
 STOP.M                    2331.8723 :Stop Depth
 STEP.M                       0.1524 :Step Length
 NULL.                     -999.2500 :Null Value
 COMP.      Fictitious Energy Company :Company
 WELL.      FICTITIOUS ET AL ALBERTA WELL 12-17-137-3 :Well
#
~Curve Information
DEPTH.M           00 001 00 00 : 1 Depth
  GR.GAPI         70 310 00 00 : 2 Gamma Ray
  DT.US/M         70 520 80 00 : 3 DELTA-T
  HD.MM           70 280 00 00 : 4 Hole Diameter
 SFLU.OHMM        07 220 01 00 : 5 SFL Resistivity
(unaveraged)
~Parameter Infomation
#
#MNEM.UNIT     VALUE                DESCRIPTION
#---------
DREF.M/HR   GROUND LEVEL     :DEPTHh Reference 
(E.G. KB.DF,CBL)
EKB .M    974.1998           :Elevation of DEPTHh
                              Reference
TDL .M    2324.              :Total DEPTHh Logger
TDD .M    2330.              :Total DEPTHh Driller
#
~Other Information
#
#MNEM.UNIT     VALUE                DESCRIPTION
#---------
#
~Tops
#
~A    DEPTH      GR      DT      HD     SFLU

 177.0888  -999.2500  -999.2500  -999.2500  0.4303 
 177.2412  -999.2500  -999.2500  -999.2500  0.4360
 177.3936  -999.2500  -999.2500  -999.2500  0.4414
 177.5460  -999.2500  -999.2500  -999.2500  0.4418 }
# (many following values deleted)