CORRODABLE BORING SHOES FOR WELLBORE CASING, AND METHODS OF FORMING AND USING SUCH CORRODABLE BORING SHOES

摘要

Earth-boring casing shoes include a crown configured for at least one of drilling and reaming a wellbore when the crown is attached to a section of casing and the casing is advanced into a wellbore. The crown includes a body comprising a corrodible composite material, and at least one cutting structure carried on the body. The casing shoes further include connection structure configured for attachment to a section of casing. Methods are used to form such casing shoes, and such casing shoes are used to install casing within wellbores.