Page 151 - Air and gas Drilling Field Guide 3rd Edition
P. 151

142     CHAPTER 5 Compressors and Nitrogen Generators


































                          FIGURE 5-26. Schematic of field location to provide high pressure field-generated nitrogen for
                          drilling operation.





                                       80

                                       70
                                     Percent Efficiency  60



                                       50


                                       40


                                       30
                                         0             5              10            15
                                                         Percent Oxygen


                          FIGURE 5-27. Membrane filter unit volumetric flow rate efficiency versus percent of oxygen (by
                          volume) remaining in output [13].
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