Page 171 - Basic Well Log Analysis for Geologist
P. 171

LOG  INTERPRETATION  CASE  STUDIES












                                                                                    TENS  (LB)
                                  CALI  (IN)                            OT  (US/F)
                                                                            ,                40.00
                                   GR  (8API)                           sPHt(    }
                                                                       ~  “LIMESTONE  ~~    0.100























































         Figure  64.   Sonic  log  with  gamma  ray  log  and  caliper,  Mississippian  Mission  Canyon  Formation,  Williston  basin.
                From  a  depth  of  9,308  to  9,408,  note:
                The  numerous  porosity  zones  indicated  by  the  increasing  interval  transit  time  (At)  on  tracks  #2  and  #3.
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