GALLING RESISTANT DRILL PIPE TOOL JOINT AND CORRESPONDING DRILL PIPE

A drill pipe tool joint comprising:a pin including a male threaded portion at an outer surface; and a box including a female threaded portion at an inner surface, the female threaded portion to be screwed and fastened to the male threaded portion in a contacting zone consisting of a male threaded co...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	TOMOYUKI NARIKAWA, KOJI SAKURA, NOBUHIDE SATO, TOSHIHIKO FUKUI, TAKESHI KUWANO, MOTOHISA YOSHIDA, TATSUO ONO, NOBUO KOBAYASHI
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	APPARATUS THEREFOR BLASTING CHEMISTRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A drill pipe tool joint comprising:a pin including a male threaded portion at an outer surface; and a box including a female threaded portion at an inner surface, the female threaded portion to be screwed and fastened to the male threaded portion in a contacting zone consisting of a male threaded contacting surface and a female threaded contacting surface, wherein at least a portion of the male threaded contacting surface or a portion of the female threaded contacting surface is a surface layer consisting of a hard metal and respectively at least a portion of the female threaded contacting surface or a portion of the male threaded contacting surface is a surface layer consisting of a soft material and where said both surface portions are contacting surfaces after screwing. Un empalme para herramienta de tubería de perforación que comprende: un perno que incluye una porción roscada macho en una superficie externa; y una caja que incluye una porción roscada hembra en una superficie interna, la porción roscada hembra se atornilla y sujeta a la porción roscada macho en una zona de contacto que comprende una superficie de contacto roscada macho y una superficie de contacto roscada hembra, en donde al menos una porción de la superficie de contacto roscada macho o una porción de la superficie de contacto roscada hembra es una capa de superficie que comprende un metal duro y respectivamente al menos una porción de la superficie de contacto roscada hembra o una porción de la superficie de contacto roscada macho es una capa de superficie que comprende un material blando en donde ambas porciones de superficie son superficies en contacto después del enroscado.