CASING LIFTING SYSTEM

A casing lifting system includes a spreader bar, a first lifting cap, and a second lifting cap. The first lifting cap is configured to engage a first end of a first section of drilling casing, and the first lifting cap includes a first lifting lug. The second lifting cap is configured to engage a se...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Cadigan, Michael F. D, Liberato, Paul
Format:	Patent
Sprache:	eng
Schlagworte:	CRANES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAULING HOISTING LIFTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	A casing lifting system includes a spreader bar, a first lifting cap, and a second lifting cap. The first lifting cap is configured to engage a first end of a first section of drilling casing, and the first lifting cap includes a first lifting lug. The second lifting cap is configured to engage a second end of the first section of drilling casing opposite the first end of the first section of drilling casing, and the second lifting cap includes a second lifting lug. In some embodiments, each of the first and second lifting caps are configured for coupling adjacent to opposing lateral ends of the spreader bar by respective first and second elastic stabilizers coupled between the first and second lifting lugs and first attachment points adjacent to the opposing lateral ends of the spreader bar.