Invaded
, or The invaded, or flushed, zone is the volume close to the borehole wall in which some, or all, of the moveable fluids have been displaced by mud filtrate. It consists of the flushed zone and the transition zone.
, or The invaded, or flushed, zone is the volume close to the borehole wall in which some, or all, of the moveable fluids have been displaced by mud filtrate. It consists of the flushed zone and the transition zone.