Page 54 - Open-Hole Log Analysis and Formation Evaluation
P. 54

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                                                                             |   Another   bed  Coal   Residual   Medium   Lightoil   —   .  :   Light dry  gas   Hydrocarbon   TABLE   aA
                                                                           ‘-*
                                             in

                                                   the
                                                                         the
                                               Apart
                                                      ment,
                                                        hands.
                                                                                                        "Medium
                                                                             special
                                                          vagaries
                                                     the
                                                              formation
                                             making
                                                                         points
                                               from
                                                                                            oil
                                                                                                    gas
                                                          of
                                                                  SUMMARY
                                                                           production
                                                   location
                                                        When
                                                            investigation
                                                                Hydrocarbon
                                                                                                gravity
                                                                          is
                                                                        fall.
                                                          the
                                                   Of
                                                            of
                                                                                                oil
                                               these
                                                 semiquantitative
                                                     analyst
                                                                                                        density gas
                                                       the
                                                                well
                                                                                                            os
                                                                                                               :   2.1   Hydrocarbon   UE  AN
                                             decisions
                                                                             logarithmic
                                                                                     Source:  After  Haworth
                                                                               technique
                                                            both
                                                     may
                                                 idea
                                                                                            .                 GWR   Potential       OU
                                                          process
                                             on
                                                              evaluator  and
                                                                          predicted
                                                   reservoir
                                                 of
                                                                                     et  al.
                                                                            grid
                                                            the
                                                                               used
                                                                logging
                                                              the
                                                     hope
                                                                            as
                                                                              is
                                             coring
                                                   rocks
                                                     to
                                                 their
                                                                                     1984.
                                                           rock
                                                                can
                                                                                            >
                                               considerations,
                                                                              to
                                                       measurements
                                                   in

                                                                          according
                                             and
                                                              drilling
                                                                                        15-20%
                                                                                            40%
                                               use
                                                           and
                                                         whereby  the
                                                       are
                                                   the
                                                                          to
                                                     know,
                                                                              plot
                                                                                                        0.5-175%
                                                                            shown
                                                                                                175%-40%
                                                           its
                                                                                                    SOK.
                                                                supply
                                                 porosity
                                               of a
                                                                          the
                                                                            in
                                             testing
                                                                                                           -  100%   05%       LHR  (%)       BVALUALION   PURIMA  LION
                                                       made
                                                 and
                                                     before
                                                             engineer
                                                           pore
                                                                                                       <<
                                                         samples
                                                                                        “<
                                               mud
                                                                          area
                                                                              straight
                                                   column
                                                                            figure
                                                             and
                                                       using
                                            depths.
                                                               real-time
                                                                                            5-10%
                                                                                        100%
                                                                                                       100%
                                                                                                —<10%®-
                                                         arrive
                                                                          of  the
                                                           fluids,
                                                     running
                                                   drilled
                                                                            2.3.
                                              logging
                                                         in
                                                               data
                                                                                                           _  very  low  +   OCQ  Ratio  (%)       MUD  2.  41   DATA
                                                                              C-number
                                                             allows
                                                                                                |
                                                   and
                                                             a
                                                 hydrocarbon
                                                         the
                                                                            The
                                                       calibrated
                                                  to
                                                           subject
                                                                                        very
                                              unit  will
                                                     wireline
                                                                              ratios
                                                                                                   308
                                                                                                S10
                                                                                            >2.0
                                                               to  both
                                                           to
                                                                                                       <05.
                                                                                        low
                                                                            type
                                                  have
                                                                              on
                                              help
                                                content.
                                                  a
                                                           the
                                                         analyst’s
                                                    logs,
                                                             hands-on
                                                       equip-
                                                               the

                                                                          graph‘on  which
                                                                              a
                                                                            of
                                                                                    3
                                                                                        4
                                                                                            :
                       =
                  FIGURE
                  2.3
                                                                                                                     LOGGING
                  Formation
                         Ci
                       rey
                  Production
                                                                                                          Nonproductive
                                Nonproductive
                  Potential from
                      CA
                         Cl
                  Carbon-Number  Ratios.

                         Cl
                      —o
                         =
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