Page 7 - A Primer of Oilwell Service and Workover Completion
P. 7

.  Sealing balls seal off a frac-  .  The blender mixes the frac-  .  One type of gas injection
        Petroleum Extension-The University of Texas at Austin
                  tured zone so that the fluid     turing fluid with the prop-     involves injecting carbon
                  will fracture another zone.    ping agent and additives.    dioxide into the
             .  This trailer-mounted                                            reservoir.            
                  fracturing unit carries a   .  Waterflooding           .  Steam flooding      
                  control panel, prime mover,   .  Chemical flooding using a   .  The huff-and-puff
                  transmission, and pump.       surfactant                   method                
                                              .  Chemical flooding using a   .  The fire-flooding
                                                   caustic solution             method                

































































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