POINT-THE-BIT BOTTOM HOLE ASSEMBLY WITH REAMER

POINT-THE-BIT BOTTOM HOLE ASSEMBLY WITH REAMER

A method includes extending a wellbore using a drill bit that forms a portion of a bottom hole assembly; enlarging a diameter of the wellbore using a reamer of the assembly; and laterally offsetting either a rotary steerable tool or a mud motor of the assembly in the enlarged diameter wellbore. A be...

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1. Verfasser: HARDIN, JR., John Ransford
Format: Patent
Sprache:eng ; fre ; ger
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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description A method includes extending a wellbore using a drill bit that forms a portion of a bottom hole assembly; enlarging a diameter of the wellbore using a reamer of the assembly; and laterally offsetting either a rotary steerable tool or a mud motor of the assembly in the enlarged diameter wellbore. A bend angle is defined between a central axis of either the rotary steerable tool or the mud motor creates and a central axis of the drill bit. Enlarging the diameter of the wellbore using the reamer while steering the assembly decreases the dogleg. Enlarging the diameter of the wellbore using the reamer while rotational drilling a straight section of the wellbore reduces stresses on the assembly and reduces wellbore tortuosity.
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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 POINT-THE-BIT BOTTOM HOLE ASSEMBLY WITH REAMER
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