Page 22 - Open-Hole Log Analysis and Formation Evaluation
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                                           10°
                                                     10°
                                                      10"
                                                   10)
                                               10"
                                             10)
                                      tion
                                                  120.
                                                             TABLE
                   (VSP)
                      order
                                           to
                        The
                            Which
                                What
                                      of
                                  needed
                          logging,
                                           10
                     to
                                                            1.2
                                                                      _                                        of   1.1
                                    method.
                                             5
                                                                                                             -
                 formations,
                                  for
                                      the
                          by
                                                                                                    __
                                                         Measurement
                                then
                              geophysicist,
                                                 .          Range     Xray   Core   Cuttings   Sidewall   Wireline   Seismic,   ‘Basin   Satellite   Formation
                                             :
                   surveys.
                            ofthem
                 the
                                  both
                                are
                     calibrate
                              and
                   The
                         testing,
                                           /      :  .   _   (hertz)   Frequency   of Physical  Principles   (SEM):  ~   electron   Scanning   minerology   analysis   analysis   (mud   analysis   Micro-focused   while   drilling   logs,   al  well   most   cores,   cores   Full-diameter   formation   Drillstem  tests   electric  logs   spacing   Borehole   gravimeter,   gravity,   geologic   studies   imagery   Formation   Evaluation   Evaluation  Perspective       Sor  n
                       geophysicist
                                    Formation
                                      réservoir
                                the
                         or
                              the
                         by
                                      and
                       needs
                                  economic
                 structural
                   geologist
                       to
                                      the
                     conventional
                                    evaluation.
                              reservoir
                 and
                                                                     :
                                parameters
                                              Old
                                  analysis
                       know
                   needs
                             and
                                           Material
                                                                               logs,  coreplug
                                                                                   measurements
                               the
                                    offers
                                                                    microscope
                                             Step-rate
                   to
                         conventional
                                                    Dielectric
                                                      Dielectric
                                                Laterolog,
                     seismic
                                                  Induction,
                                 and
                       the
                                                                         logging)
                                    a
                                      planning
                                                                                     convention-
                                              electric
                                                                                       .  -  Local   _   tests   ~  Local   Ultra  long   Sere   magnetics   '.  Gross       Technique...   boss       ee

                                            well
                                      of
             ‘reservoir  engineer  needs  to  know the  vertical
                                                      CEPT)
                                                  sonic
                                          balance
                                              logs
                                                    (DCL)
                   know
                                    way
                                                seismic
               mineralogy  of the  formations  through  which  the
                 sedimentary
                                                         |  Measyirement  Type
                                                                     Rock
                                                                         -°  Local
                         logging?
                                      the
                                   of
                                                                   _Micro
                               manager,
                   the
                                            testing
                             production
                                                                     and
                                                                                 ,   and   lithology   permeability,   porosity,   reserves   and   Productivity   structure   structure   Purpose   UL
              well
                                 production
                       time-depth
                     and  vertical
                                                    .
                                                                   pore
                                                            Used  in  Formation
                               the
            and  lateral
                                                                       Rock  properties
                features,
                                     optimum
                                   gathering
                                                                         hydrocarbon
                             engineers
                                                                   structure
                                                                     clay  typing
                   stratigraphy
                                 planning.
                and
                                   the
                               geologist,
                                                            Evaluation
                       relationship
                                                                         content
            extent  of the
                the

                     seismic profile
              was  drilled.  The
                  of  the
                            can  be  provided  by  seismic  records,  by  coring,  by  mud
                             need?

                               the

                      in
                                   data
                                     recovery

                                                                                                                 -   reservoir  and   1,   FORMATION   EVALUATION   OVERVIEW
                                                                                                           to
                                                                                                   to
                                                                                                       on
                                                                                                             the
                                                      and
                       In
                                        Flow
                                                        From
                                      Fluid
                     many
                                                                                            when
                                                                                                know
                 tance,
                                                                       Water
                   topics
                                                            Travel
                           better,
                                                                                          The
             testing
               mation
                                                                                    ducing
                                               cability
                                                      the
                                                 needed
                                                                                            it
                                                                                        namely,
                                                                                  can  give
                                                                                provide
                                                                                                             rock
                                    Pressure
                                                                                                               content,
                                                                           Porosity,
                                  Residual
                                                                                                           assess
                                                                   Lithology
                                                                                            is
                         proposals
                                      type
                                                 to
                                        rates
                                             producing
             are
                                                                Formation
                                                   Logging
                             From  these
                                                                                    the
                                                        these
                                                                                  the
                                  oil
                                                            times
                                                                                        the
                                                              Sedimentary

                                                                         Permeability
                                                                                                               and
                                                                     Hydrocarbon
                                                                           both
                                                                                      development;
                                                                dip
                                                                                              waterflooding
                                                                                either
                   ranging
                       summary,
                                                                                                       production,
                                                                                          manager
                 however,
                                                                                a
                     questions
                                                                       saturation
                           remedial
                                                                                                formation
                                                        data,
                                             wells,
                 is
                                                                     type
                                                                                              and
               evaluation
             integral
                                                                and
                                                                                      and,
                                                 monitor
                                                                                                       the
                                                                                                           sanding
                                                                                                             properties;
                         evaluated

                   from
                                                                       and
                                                                                    reservoir.
                                                                                        original
                     from
                       when
                 the
                                                                                              be
                                                            of  elastic
                                                                                          needs
                                                      hydrocarbons
                                                   techniques
                                                                           primary
                                                                                direct
                                                                                            operational.
                           work
                                                        good
                                                                     Coil,
                                                                                                             be
                                  saturations
                     a
                         and
             parts
                                                     in
                                                                                                           and
                                                                                          to
                                               of waterflooding
                                                   in
                                             logging
                                                                                                                 its porosity
                                                                                    Log
                 fact
                                                                                      based
                                                              environment
                                                                                                         secondary  recovety  efforts
                                                                                              able
                   basic
                             measurements,
                                                                           and
                                                                                                               recoverability.
                                                                     gas,
                                                 primary
                                                                                                injectivity
                                                                structure
                                               and
                     wide
                                                            waves
                                                                                              to
                                                                                                     dynamic  behavior  of  the  well

                                             can
               problems.
                                                                                                             aware
                                                                                      on
                 that
                                                                     or
                                                     place.
             of  any
                                                                                                       production
                                                            in
                                                   cased
                       properly
                                                                                                                 (type
                                                                                                               The
                           planned,
                                                                                                and
                                                                                                   diagnose  problems  as  the  well
                                                        estimates
                                                            a
                                                                                          know  the
                                                                       hydrocarbon
                                                                                        hydrocarbon
                   geology
                                                                                      those
                         monitored.
                                                                                                           associated
                           and
                                                                                measurement
                                                   holes
                                               monitor
                                             provide
                                                                                                  ages.
                                                        may
                                                                           secondary
                                                                                              monitor
                                                                                        in
                                                                                                         or  pressure
               Coring,
                   to
                     spectrum
                                                                                          vital
                                                 production
                                                                               or
                       applied
                                               its
                                                        be
                                                                                                       engineer
                                                                                                residual
                                                                               a
                                                                                              the
                                                   can
                                                                                    measurements,
             formation
                                                                                                  The
                                                            formation
               core
                                                                    condensate)
                                                 and
                                                                                      factors,
                                                                                                               production
                                                                                                                 of  porosity)
                                                                                        place;
                                                                                                       will
                                                                                                             of  overpressure
                                                                       movability
                                                                                          inputs
                                                        made
                                                                                                     under  production
                                                                               good
                                                                                                           problems
                                                                                  majority  ofthe  parameters  required.
                                                                                      the
                                                                                    when
                           secondary
                                                                           (fractures
                                                                                                water
                       logging

                                                                                          to
                                                 also
                                                                                                                 and
                                                                                                             if  it
                                               progress
                                                                                                       also
                                                   provide
                   economics.
                           or
                                                                                              progress
                                                 to
                                                                                          an
                                                                                                         maintenance.
                                                                           and
                       can
               analysis,
             evaluation
                                                                                                           and
                                             measurements
                                                                                                               engineer
                 logging  by  itself cannot
                                                        of  the
                   Of
                                                                                                       need
                                               when
                             dynamic  well  behavior  can  be
                                                                                                             exists;
                                             of:
                                                   much
                                                                                    properly
                                                                                                           the
               and
                     of  special-interest
                                                 gauge
                                                                                                         Once
                                                                               indication
                                                                                                       to
                                                                           vugs)
                           tertiary
             effort.
                                                                                                               needs
                                                                                  Specifically,
                                                                                                saturations
                                                                                        recoverability;
                                                                                                             and
                       answer
                                                                                      profitability
                                                                               of:
                                                 the
                                                                                          economic
                                                                                                               to
                       a
                                                                                                                 permeability,
                                                                                                to
                                                   of  the
                                                                                                             be
                                                                                      of
             *
                                                        reservoir
                                                                                                           need
                 answer  all
                                                                                  logs
                                                                                                       know
                     groups
                                                                                        cost
                                               installed.

                                                                                                         the  well
                                                       size
                     on
                                                 appli-
                 for-
               formation
                                               In
                                                                                                                 fluid
                   equal-impor-
                                                                                                               know
                       great
                             understood
                           recovery
                                                                                                plan
                                                                                              of  the  waterflood
                                                                                          study,
                                                                                                       the
                                                                                                     conditions  and  need
                                                                                                  engineer  may  also  need  to
                                                                                                         is
                                                                                  can
                                                                                                             abie
                                                   data
                                                                                      pro-
                                                                                                           for
                                                                                    calibrated,
                                                                                        of
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