Drill pipe/casing protector

The drill pipe/casing protector comprises a protective sleeve (22) preferably made from a compressible material secured to the exterior of the drill pipe. The sleeve rotates with the drill pipe during normal drilling operations in which there is an absence of contact between the sleeve and the casin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KRUEGER, ERNST R, KRUEGER, WILLIAM E
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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