Page 101 - Basic Well Log Analysis for Geologist
P. 101

POROSITY  LOGS











                               POROSITY  AND  LITHOLOGY  DETERMINATION  FROM
                                          FORMATION  DENSITY  LOG  AND
                                        COMPENSATED  NEUTRON  LOG  (CNL)
                                             SALT  WATER,  LIQUID-FILLED  HOLES








                    2.0



                    2.)



                    2.2                                                                                POROSITY

                  /cc   2.3

                  gm                                                                                   LIMESTONE

                  DENSITY   24




                   2.5                                                                                 APPARENT
                  BULK


                   2.6
                  Pp                                                                                   LOG


                   2.7                                                                                 DENSITY
                    30

                   2.8



                   2.9

                                                                        eos  +
                                                                             +  ©1972  Schtun.berger
                                                                              30              40

                      CNL  NEUTRON  INDEX  (doy, )¢  (APPARENT  LIMESTONE  POROSITY)






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