Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Gary Oddie0
Ashley Bernard Johnson0
Date of Patent
January 14, 2020
Patent Application Number
14889709
Date Filed
May 12, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method is provided for determining a discharge coefficient of a managed pressure drilling choke/valve as a function of valve opening position. The method comprises: a flow of air/gas through the choke/valve; measuring a velocity of the air/gas flow at an inlet of the choke/valve; and measuring a pressure drop of the air/gas flow across the choke/valve.
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