Patent ID: 8770273
Filing Date: 2014-07-08
Classification: E02D,E21B

Abstract:
1. A method of minimizing leakage of at least one of: oil, drilling mud, and drilling fluids, into soil about a well cellar of a gas well or an oil well, said method comprising the steps of: installing a sealing structure by: installing a sealing band, which sealing band comprises a sealing ring, by placing said sealing ring against said second portion of said sealing structure by positioning said sealing ring against said resilient ring with a portion of said additional layer of containment material between said sealing ring and said resilient ring, which sealing ring comprises a plurality of arcuate members connected to one another; and then expanding said sealing ring by adjusting an adjusting structure disposed at the connection between two of said arcuate members, and thereby pressing, holding, and at least assisting in sealing said second portion of said sealing structure.