Apparatus and methods for mechanically coupling a sealing system around the opening to cellar formed around a hydrocarbon exploration or production well

摘要

Apparatus useful for providing a liquid-tight seal around cellar formed around a hydrocarbon exploration or production well includes a reusable load-supporting surface having at least two mats surrounding and spaced-away from the borehole opening. At least one spanner is configured to extend between the cellar wall and mats. At least one elongated spanner support is used to mechanically couple one or more spanners to the cellar wall. At least one elongated lip support is used to mechanically couple one or more spanners to the mats.