Wells – Processes – Placing or shifting well part
Patent
1992-01-29
1994-08-02
Dang, Hoang C.
Wells
Processes
Placing or shifting well part
166182, 166191, 166208, 277117, 277236, E21B 33128
Patent
active
053336925
ABSTRACT:
A seal apparatus is provided for use in a subterranean wellbore having a wellbore tubular disposed therein. The wellbore tubular defines a wellbore surface. The seal includes a number of components which cooperate together. A conveyance tubular is provided, which is positionable within the subterranean wellbore at a selected location relative to the wellbore surface. A sealing ring is provided, and disposed about at least a portion of the conveyance tubular. The sealing ring has a first surface proximate the conveyance tubular and a second surface which is removed in distance from the conveyance tubular. The second surface defines a sealing surface, and includes a plurality of portions, 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. The seal apparatus is operable in a plurality of modes, including a running mode of operation and a sealing mode of operation.
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Baugh John L.
Melenyzer George J.
Baker Hughes Incorporated
Dang Hoang C.
Hunn Melvin A.
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