Making and breaking of couplings between pipe sections in a drilling rig

The invention relates to the making and breaking of connections between pipe sections and a pipe string projecting from a drilling rig in a bore hole in the lithosphere, for instance in the course of drilling or lining oil or gas wells. For making of breaking a coupling between a pipe section () and...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Van Wechem, Gustaaf Louis, Bakker, Thomas Walburgis
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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