Page 167 - Open-Hole Log Analysis and Formation Evaluation
P. 167

other
                          only
            reflects
                                                                                     summing
                                                                    figure
                                                                section
                                                                                              referred
                                                                                              to
                          vertical
                                                                                     pay,
            neither
                                                                    8.3:
                  exploration
                        the
                                                            low-porosity,
                                                                                     is
                                                                                                    general,
                                                                                                            need
                                                                represents
            true
                                                                                                            to
                                                                                                                and
                                             transition
                          with
                                                                                     normal
                                                                                                            be
                                                                                                    B,  will
                        case  where
                                                                                                                the
                                                                                                              hand
                                                                                                    a
                                                                                                              in
                  development
                                                                                     practice
            stratigraphic
                          horizontal
                                             likely
                                                                                                    small
                                                                                                                formation
                                             to
                                                                                                              a  wildcat

                                                                                                    fraction
                                                                                     compute
                  the
                                                                                     a
                                             produce
           not
                        deviated
           its


                        or

                  drilling
                                                           a,
                                                                                                   1—that
                          con-
           true
                        the
                                                           b,
                                                                                                   is,
                                                                                     of
                                                                                                                The

       ee   thickness  its  hole   made  in  a   deviated   measured  from  a  log   of  a   formation  as   thickness   As  a   result,  the   fixed   platforms.   wells  from   multiple   deviated   of   requires  and   Offshore   effects.   these   for  to  make   allowances  it  is   important  are   dipping,  or  both,   beds   is   the  wellbore  in   sidered.   However,   been  beds  have   wells  far,  So   AND   DIPPING   BEDS.  ~   WELLS   DEVIATED   SPECIAL   C
         a  a oe en  ee


                                                                                               GROSS  SECTION       153
                                                                                               POROUS  &  PERMEABLE
                                                                                               GROSS  PAY
                                                                                               NET  PAY                .  8.   RESERVE   ESTIMATION
                   ,
                 FIGURE
                 8.3
                Gross  and  Net  Pay.
                                                                         HYDROCARBON

                                                                                           Resistivity


                                                                                         Formation  Top
                     Formation  Base
                                            Oil/Water  Contact
                                                       Top  Transition  Zone
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