Boring or penetrating the earth – With below-ground tool drive prime mover – With below-ground conveyer or impeller for removal of cuttings
Patent
1995-03-17
1997-07-29
Novosad, Stephen J.
Boring or penetrating the earth
With below-ground tool drive prime mover
With below-ground conveyer or impeller for removal of cuttings
175320, 1753255, 175393, E21B 400, E21B 1060, E21B 1710, E21B 1716
Patent
active
056514204
ABSTRACT:
A drilling apparatus having cuttings removal structure to reduce balling thereof comprising an apparatus body having a connection thereon, and structure for contacting cut potions of the earth formation. The contacting structure may include chip breakers, flexible cables, rotating nozzle assemblies, rotating turbine wheel assemblies, rotating vane assemblies, flails or combinations of these. The apparatus may include elastomeric portions and/or movable potions. The drilling apparatus may comprise a drill bit, drilling stabilizer, drill collar, reamer, downhole motor, etc.
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Cooley Craig H.
Tibbitts Gordon A.
Baker Hughes Inc.
Novosad Stephen J.
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