Turnaround (TAW) "switch-over", or conversion wells are utilized for combining oil and gas
production and injection of water for either pressure maintenance or disposal. Therefore a well is
designed such that it can begin as an oil and gas producer then later be converted to a water
injector or vice versa. These wells could be “switched” several times, without any major well
intervention, e.g. removal of tubing.
Material selection for TAWs sometimes have proven problematic with rapid failures when the
incorrect metallurgy was installed, resulting in severe corrosion damage. A study aimed to assess
possible production/injection well combination scenarios was performed.