An improved coring bit and method for obtaining a material core sample

An improved coring bit and method for obtaining a material core sample

The present invention provides a brush bit for cutting a core sample from an unconsolidated formation with reduced fragmentation or damage to the core sample by using a plurality of stiff bristles to cut rock from around the core sample. The present invention also provides an improved method of obta...

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Hauptverfasser: EDWARD HARRIGAN, GARY CONTRERAS, ROBERT WAYNE SUNDQUIST, SONY TRAN, BUNKER M HILL, DEAN LAUPPE
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator EDWARD HARRIGAN
GARY CONTRERAS
ROBERT WAYNE SUNDQUIST
SONY TRAN
BUNKER M HILL
DEAN LAUPPE
description The present invention provides a brush bit for cutting a core sample from an unconsolidated formation with reduced fragmentation or damage to the core sample by using a plurality of stiff bristles to cut rock from around the core sample. The present invention also provides an improved method of obtaining a core sample from an unconsolidated formation.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title An improved coring bit and method for obtaining a material core sample
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