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134  3 Drilling into Geothermal Reservoirs







                                                                                          Ed-
                       End of job                                                         Schlumberger





                                                                                          edn,
                                                                                          2nd
                       Displacing                                                         Cementing,



                                                                                          Well
                                                                                          (1990)

                                                                                          E.B.
                       Displacing                                                         Nelson,




                                          Displacement  fluid  Spacer  Original           (Courtesy:


                      Pumping spacer  and slurry  Slurry          mud                  Plug releasing pin out  (schematic). cementation  TX.)








                               cementing  cementing  Centralizers   Float  collar  Shoe     Houston,
                              Top  plug  Bottom  plug                                     Two-plug
                      Circulating  mud                                                 Plug releasing pin in  3.15  Figure  Services, ucational
   153   154   155   156   157   158   159   160   161   162   163