Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 26, 2021
Patent Application Number
16230456
Date Filed
December 21, 2018
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
A riser system is provided to eliminate the consequences associated with damage to the annular system while also maintaining the availability of critical safety systems. The riser system may comprise a customizable control housing and external seal control subs that facilitate reciprocation and rotation of a drillpipe or workstring while eliminating damage to the upper annular blow out preventer and allowing the upper annular blow out preventer to function as intended.
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