Page 218 - Geology of Carbonate Reservoirs
P. 218

REVIEW QUESTIONS  199




               7.8.   How could you determine whether a fractured reservoir is a Type I, II, III, or
                    IV variety?


               7.9.   What clues might indicate the presence of fractures during the drilling

                    process?
               7.10.      How  could  you  confirm the presence of fractures in the borehole after

                    drilling?

               7.11.      The genetic porosity classification in this book indicates that depositional and

                    diagenetic attributes influence fracture porosity. What influence can diagenetic

                    or depositional characteristics have on fracture intensity?
               7.12.      What is meant by  “ mechanical stratigraphy ” ?


               7.13.   What problems might you encounter in calculating fluid saturation for frac-


                    tured reservoirs? How would you determine the appropriate  “ m  ”  value for

                    the Archie equation in fractured reservoirs?
               7.14.   Of Nelson ’ s four principal types of fractured reservoirs, which has the greatest




                    storage capacity? For the fractured reservoir type you identified, is capacity
                    to store fluids equivalent to capacity to flow? Explain.
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