Metal seal adjustable casing sub
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United States of America Patent
Stats
-
May 1, 2012
Grant Date -
Jan 14, 2010
app pub date -
Jul 10, 2008
filing date -
Jul 10, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An adjustable casing sub having an outer housing, an inner housing insertable into the outer housing, and a ratcheting system for coupling the inner housing within the outer housing. An annulus is between a portion of the inner and outer housing, the annulus including an inwardly tapered section. A metal faced seal is disposed in the annulus, wherein the metal faced seal includes a sliding surface and a compressive sealing surface. The sliding surface may include a malleable inlay and the compressive sealing surface may include a spring like element. Moreover, the metal faced seal radial thickness is greater than the inwardly tapered section radial thickness.
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