Page 194 - Challenges in Corrosion Costs Causes Consequences and Control(2015)
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172                                                 CORROSION CAUSES

                               Rod                  Water or gas injection
                              pump
                                       Wellhead            Wellhead


                                        Casing             Casing
                                Tubing             Tubing

                                                   Packer
                               Packer
                            Reservoir             Reservoir
                                   Production        Injection
                                     wells            wells
                                                                      Gas
                                     Gas
                                    water
                                     oil           Water         Water
                                                  Produced
                                    1st stage      water        Seawater
                                   separator                    injection
                                                   injection
                        Wet                        pumps         pumps
                        gas
                                     Gas
                                    water
                                     oil           Water         Water
                        Gas                                     Seawater
                        water  Wet  2nd stage  Oily  Oily water  deaeration
                 Gas   knockout  gas  separator  water  separator
                flare   drum
                              water
                                     Oil                         Water
                       Dry gas
                                                    Gas compression
                                                                Seawater
                                 Oil                             filtration
                                               Oil
                     Gas
                     sales

                                             Pipeline           Seawater
                                Tanker
                         Figure 3.27  Oil and gas production flow diagram (7).


           high percentage (∼100%) of CO , which dramatically increases the corrosivity of the
                                     2
           produced fluids.


           3.23  CORROSION IN THE MINING INDUSTRY

           Corrosion in the mining industry may be characterized as corrosion enhanced by
           abrasion. It is also difficult for corrosion engineers to plan for corrosion because
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