High Temperature Back Pressure Valve
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United States of America Patent
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N/A
Issued Date -
May 1, 2014
app pub date -
Oct 29, 2012
filing date -
Oct 29, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A back pressure valve for sealing a wellbore. The back pressure valve has a cylindrical body with threads designed to engage threads in the opening of a tubing hanger within the wellbore. The back pressure valve also has a metal sealing surface. When the threads of the back pressure valve engage the threads in the opening of the tubing hanger, the metal sealing surface of the valve seals against the metal of the tubing hanger, forming a metal to metal seal.
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