Tong cassette positioning device

A method for connecting a tong cassette and a positioning device includes moving a positioning arm of the positioning device toward a predetermined position on the rig; identifying a position of the tong cassette relative to the positioning arm; and connecting the positioning arm to the tong cassett...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	THIEMANN, Bjoern, FUEHRING, Ernst
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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Beschreibung
Zusammenfassung:	A method for connecting a tong cassette and a positioning device includes moving a positioning arm of the positioning device toward a predetermined position on the rig; identifying a position of the tong cassette relative to the positioning arm; and connecting the positioning arm to the tong cassette. A system includes a tong cassette; and a positioning device having a first sensor configured to measure a distance between the tong cassette and the positioning device; and a second sensor configured to measure a stick-up height of a tubular string.