Expandable eccentric reamer and method of use in drilling

Boring or penetrating the earth – Processes

Reexamination Certificate

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Details

C175S267000

Reexamination Certificate

active

06991046

ABSTRACT:
An expandable eccentric reamer for placement in a drill string up-hole of a conventional drill bit. The reamer blade is actuated by drilling fluid pressure to radially extend to a drill out diameter greater than a pass-through diameter. The reamer body is shaped to have an eccentric outer surface configuration to accommodate the reamer blade therein. The reamer blade acts as a piston arm in response to drilling fluid pressure and moves along a shaft anchored in a hump region that forms an eccentricity in the outer surface configuration of the body. The reamer blade has an outer edge configuration that positions the cutters thereon to prevent them from engaging a casing of a well borehole upon deployment.

REFERENCES:
patent: 3224507 (1965-12-01), Cordary et al.
patent: 3365010 (1968-01-01), Howell et al.
patent: 3425500 (1969-02-01), Fuchs
patent: 3433313 (1969-03-01), Brown
patent: 3556233 (1971-01-01), Gilreath et al.
patent: 4055226 (1977-10-01), Weber
patent: 4431065 (1984-02-01), Andrews
patent: 6227312 (2001-05-01), Eppink et al.
patent: 6378632 (2002-04-01), Dewey et al.
patent: 6494272 (2002-12-01), Eppink et al.
patent: 2003/0079913 (2003-05-01), Eppink et al.
patent: 2004/0065479 (2004-04-01), Fanuel et al.
patent: 2004/0206549 (2004-10-01), Dewey et al.
patent: 2004/0222022 (2004-11-01), Nevlud et al.
patent: 001398455 (2004-03-01), None

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