Eccentric shoe
spring-loaded with valve BUR-BENK
For guiding of casing string when lowering in open hole, flushing of bottomhole and casing annulus.
Prevents inadvertent filling of casing string with drilling mud and excludes overflow of cement grout from annulus inside casing string.
Prevents inadvertent filling of casing string with drilling mud and excludes overflow of cement grout from annulus inside casing string.
Eccentric shape of nose piece provides guiding and facilitates string lowering.
Shoe is equipped with check valve to prevent self-filling of string and exclude overflow after cementing.
Shoe is spring-loaded and can rotate under axial load by 60 degrees in a single reciprocating motion.
Shoe nose piece is made of easy-to drill-out alloy, which allows taking high axial loads when lowering and quick drilling out during normalization.
Shoe is equipped with check valve to prevent self-filling of string and exclude overflow after cementing.
Shoe is spring-loaded and can rotate under axial load by 60 degrees in a single reciprocating motion.
Shoe nose piece is made of easy-to drill-out alloy, which allows taking high axial loads when lowering and quick drilling out during normalization.
SPECIFICATIONS