Boring or penetrating the earth – With below-ground tool drive prime mover – With below-ground conveyer or impeller for removal of cuttings
Patent
1997-05-09
1999-05-11
Tsay, Frank
Boring or penetrating the earth
With below-ground tool drive prime mover
With below-ground conveyer or impeller for removal of cuttings
175404, E21B4/00;10/04
Patent
active
059017970
ABSTRACT:
A drilling apparatus having cuttings removal structure to reduce balling thereof and to help prevent the accretion of portions of chips and debris from drilling thereon and/or the accretion of portions of drilling fluids thereon. The drilling apparatus comprises an apparatus body having a connection thereon and structure for contacting cut portions of the earth formation. The contacting structure may include chip breakers and flails or combinations thereof.
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Cooley Craig H.
Hansen Wayne R.
Baker Hughes Incorporated
Tsay Frank
LandOfFree
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