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...

Ausführliche Beschreibung

Bibliographische Detailangaben

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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