SMITH INTERNATIONAL, INC. - HOUSTON TX, US CARL M. HOFFMASTER - HOUSTON TX, US GREGORY LOCKWOOD - PEARLAND TX, US RONDA S. SHEPHERD - HOUSTON TX, US MATTHEW O'LAIN - LEDUC, CA BOBBY L. ALLEN - SPLENDORA TX, US
Assignee:
SMITH INTERNATIONAL, INC. - HOUSTON TX
International Classification:
E21B 10/26
US Classification:
175406, 51307, 51309
Abstract:
A method of manufacturing a fixed cutter drill bit may include loading a first matrix material of controlled thickness to at least a portion of a mold cavity corresponding to a heel surface of at least one blade; loading a second matrix material into the remaining portions of the mold cavity; heating the mold contents to form a matrix body of the fixed cutter drill bit; and disposing at least one back reaming element in at least one back reaming cutter pocket.
Interlake Elementary School Seattle WA 1968-1971, McDonald Elementary School Seattle WA 1971-1972, Whittier Elementary School Seattle WA 1972-1975, James Monroe Junior High School Seattle WA 1975-1978