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Steven R Radford, Mark R Kizziar: Expandable reamer for subterranean boreholes and methods of use. Baker Hughes Incorporated, TraskBritt, March 23, 2010: US07681666 (26 worldwide citation)

An expandable reamer apparatus and methods for reaming a borehole are disclosed, including at least one laterally movable blade carried by a tubular body selectively positioned at an inward position and an expanded position. The at least one laterally movable blade, held inwardly by at least one bla ...


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Steven R Radford, Scott S Shu, Les T Shale, Mark E Morris, Mark R Kizziar, Anton F Zahradnik: Expandable reamers for earth-boring applications and methods of using the same. Baker Hughes Incorporated, TraskBritt, August 16, 2011: US07997354 (8 worldwide citation)

Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) ...


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Steven R Radford, Scott Shiquiang Shu, Les T Shale, Mark E Morris, Mark R Kizziar, Anton F Zahradnik: Expandable earth-boring wellbore reamers and related methods. Baker Hughes Incorporated, TraskBritt, June 4, 2013: US08453763 (6 worldwide citation)

Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position. In some embodiments, the tools may include a formation-engaging surface com ...


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Steven R Radford, Mark R Kizziar, Mark A Jenkins: Expandable reamer apparatus including stabilizers. Baker Hughes Incorporated, TraskBritt, February 25, 2014: US08657038 (5 worldwide citation)

An expandable reamer apparatus and stabilizer sub having at least one rib thereon attached thereto for drilling a subterranean formation.


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Steven R Radford, Scott Shiqiang Shu, Les T Shale, Mark E Morris, Mark R Kizziar, Anton F Zahradnik: Expandable reamer tools. BAKER HUGHES INCORPORATED, TraskBritt, November 17, 2015: US09187960

Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position. In some embodiments, the tools may include a formation-engaging surface com ...


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Steven R Radford, Mark R Kizziar: Expandable reamer for subterranean boreholes and methods of use. Baker Hughes Incorporated, Trask Britt, May 8, 2008: US20080105465-A1

An expandable reamer apparatus and methods for reaming a borehole are disclosed, including at least one laterally movable blade carried by a tubular body selectively positioned at an inward position and an expanded position. The at least one movable blade, held inwardly by at least one blade-biasing ...


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Steven R Radford, Scott S Shu, Les T Shale, Mark E Morris, Mark R Kizziar, Anton F Zahradnik: Expandable reamers for earth-boring applications and methods of using the same. Baker Hughes Incorporated, Trask Britt, June 5, 2008: US20080128174-A1

Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) ...


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Steven R Radford, Mark R Kizziar, Mark A Jenkins: Stabilizer subs for use with expandable reamer apparatus,expandable reamer apparatus including stabilizer subs and related methods. Traskbritt PC, January 13, 2011: US20110005836-A1

An expandable reamer apparatus and stabilizer sub having at least one rib thereon attached thereto for drilling a subterranean formation.


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Steven R Radford, Scott S Shu, Les T Shale, Mark E Morris, Mark R Kizziar, Anton F Zahradnik: Expandable earth-boring wellbore reamers and related methods. Baker Hughes Incorporated, November 3, 2011: US20110266060-A1

Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a refracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) ...