STATUS INDICATORS FOR USE IN EARTH-BORING TOOLS HAVING EXPANDABLE MEMBERS AND METHODS OF MAKING AND USING SUCH STATUS INDICATORS AND EARTH-BORING TOOLS

STATUS INDICATORS FOR USE IN EARTH-BORING TOOLS HAVING EXPANDABLE MEMBERS AND METHODS OF MAKING AND USING SUCH STATUS INDICATORS AND EARTH-BORING TOOLS

Expandable tools for use in subterranean boreholes may include a body defining a fluid flow path extending through the body. A valve piston may be located within the fluid flow path of the body, the valve piston configured to move longitudinally within the body responsive to drilling fluid flowing t...

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Hauptverfasser: TRINH, KHOI, Q, RADFORD, STEVEN, R
Format: Patent
Sprache:eng ; fre ; ger
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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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RADFORD, STEVEN, R
description Expandable tools for use in subterranean boreholes may include a body defining a fluid flow path extending through the body. A valve piston may be located within the fluid flow path of the body, the valve piston configured to move longitudinally within the body responsive to drilling fluid flowing through the fluid flow path above a threshold pressure. The valve piston may include a nozzle defining an opening at an end of the valve piston. A status indicator may be located within the flow path of the body, the status indicator being fixed relative to the body. The status indicator may be positioned and shaped to alter a cross-sectional area of the opening of the nozzle by at least partially entering the nozzle responsive to the valve piston moving longitudinally within the body.
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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 STATUS INDICATORS FOR USE IN EARTH-BORING TOOLS HAVING EXPANDABLE MEMBERS AND METHODS OF MAKING AND USING SUCH STATUS INDICATORS AND EARTH-BORING TOOLS
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