APPARATUS AND METHODS FOR MECHANICALLY COUPLING A SEALING SYSTEM AROUND THE OPENING TO AN UNDERGROUND BOREHOLE

Apparatus useful for providing a liquid-tight seal around an opening formed in the earth's surface includes a reusable load-supporting surface having at least two sealingly interconnected mats surrounding and spaced-away from the borehole opening. At least one flexible, planar spanner is config...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MCDOWELL, JAMES KERWIN, DURIO, KENNETH EDWARD, EDWARDS, RICHARD LAMAR, BORDELON, RANDY PAUL, DUGAS, AARON WILLIAM
Format:	Patent
Sprache:	eng ; fre
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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