THREADED JOINT FOR HEAVY-WALLED OIL COUNTRY TUBULAR GOODS

Provided is a threaded joint for heavy-walled oil country tubular goods which can acquire both the ensuring of sealability and the prevention of galling in a state where a high external pressure is also applied to the threaded joint in addition to a high compressive force. A surface of a pin 3 side...

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Bibliographische Detailangaben
Hauptverfasser:	KAWAI, Takamasa, CHIKATSUNE, Hiroshi, TAKANO, Jun, TAKAHASHI, Kazunari, UETA, Masateru, SATO, Hideo, SEKI, Haruhiko, YONEYAMA, Tsuyoshi, YOSHIKAWA, Masaki, NAGAHAMA, Takuya
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING 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 MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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