MODIFIED SURFACE PROPERTIES OF PERCUSSION TOOLS USED IN DOWNHOLE DRILLING

MODIFIED SURFACE PROPERTIES OF PERCUSSION TOOLS USED IN DOWNHOLE DRILLING

A system and method of fabricating a percussion tool that includes one or more surfaces modified using the ferritic nitrocarburization process. The percussion tool includes a piston (44) positioned in sliding contact within a casing (230). The piston includes an inner wall (398) and an outer wall (3...

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Hauptverfasser: Plana, Anthony Stuart, Breckenfeld, Ted James, Harrington, David M
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 Plana, Anthony Stuart
Breckenfeld, Ted James
Harrington, David M
description A system and method of fabricating a percussion tool that includes one or more surfaces modified using the ferritic nitrocarburization process. The percussion tool includes a piston (44) positioned in sliding contact within a casing (230). The piston includes an inner wall (398) and an outer wall (399), where the inner wall defines a passageway (80) extending longitudinally therethrough. The outer wall is positioned in close fitting relationship with an internal surface of the casing. One or more surfaces of at least one of the casing's internal surface and/or the piston's outer wall are modified using the ferritic nitrocarburization process. LZ: O L Sco C~o co co
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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 MODIFIED SURFACE PROPERTIES OF PERCUSSION TOOLS USED IN DOWNHOLE DRILLING
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