A flexible wellbore casing guide having a Wbular body positioned at an end of a wellbore casing having a lower stiffness than the wellbore casing whereby the casing guide more easily deflects as the wellbore casing is inserted into the wellbore without causing undue 5 stress on a wellbore formation. 0 (NJ (C x N1 N) - (C K' v--- 7 / //~ "~"'N // / ( -A "1