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<br />Fgura 3 <br />OILFIELD FLUID INJECTION WELL CONSTRUCTION <br />WELL HEAD <br />PRESSURE CUACE <br />OILF1ElD FLUIDS . <br />ANNULUS PRESSURE CUAGE <br />OR LEVEL INDICATOR <br /> .~ o <br /> a <br /> <br />A a., <br />e. V <br /> <br /> r i. :' <br /> <br />SURFACE CASING <br />SEATED BELOW <br />FRESH WATER 20NE <br />AND CEMENTED TO <br />SURFACE <br />INJECTION CASING CEMENTED <br />TO SURFACE OR 25m INSIDE <br />OF INTERMEDIATE CASING <br /> <br />"Od <br />e°~ ~ SURFACE GRAVELS d <br />• .~n <br />______ _SHALE' __ ----_ <br />_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _:;I <br />'~FRE511, WATER ~SANDSiONE y <br />',~ _ <br />.~..•• . <br />INJECTION TUBING <br />ANNULUS FILLED WITH <br />CORROSSIVE INHIBffOR <br />--- - SKAL~_- -- -- <br />PACKER <br />----------------------------- --SHALE------ _. <br />1 <br />.~ I <br />