E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/035 (2006.01) E21B 33/12 (2006.01) E21B 33/128 (2006.01)
Patent
CA 2128543
A seal apparatus (11) is provided for use in a subterranean wellbore having a wellbore tubular (13) disposed therein. The wellbore tubular defines a wellbore surface (15). A conveyance tubular (17), is provided, which is positionable within the subterranean wellbore at a selection location relative to the wellbore surface. A sealing ring (19) is provided, and disposed about at least a portion of the conveyance tubular. The sealing ring has a first surface (31), proximate the conveyance tubular and a second surface (33) which is removed in distance from the conveyance tubular. The second surface defines a sealing surface, and includes a plurality of portions (91, 93, 97, 101, 103), with selected ones of the plurality of portions of the sealing ring extending radially from the conveyance tubular in at least one radial dimension. The selected portions define at least one metal seal point for selectively and sealingly engaging the wellbore surface.
Baugh John L.
Melenyzer George J.
Baker Hughes Incorporated
Sim & Mcburney
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