US 12,084,929 B1
Resettable pressure relief valve system and method for use when drilling with a rotating control device
Martyn Parker, Fort Smith, AR (US); Benjamin Micah Spahn, Alma, AR (US); and Jason Finley, Greenwood, AR (US)
Assigned to PRUITT TOOL & SUPPLY CO., Fort Smith, AR (US)
Filed by PRUITT TOOL & SUPPLY CO., Fort Smith, AR (US)
Filed on Mar. 27, 2023, as Appl. No. 18/190,860.
Application 18/190,860 is a continuation of application No. 17/085,488, filed on Oct. 30, 2020, granted, now 11,613,946.
Claims priority of provisional application 62/928,639, filed on Oct. 31, 2019.
Int. Cl. E21B 21/10 (2006.01); E21B 21/08 (2006.01)
CPC E21B 21/106 (2013.01) [E21B 21/08 (2013.01)] 20 Claims
OG exemplary drawing
 
18. A method of discharging well bore pressure of drilling fluid from a rotating control device (RCD) to a rig flowline, the method comprising:
discharging the pressure through a pressure relief valve (PRV) located downstream of the RCD;
wherein the PRV opens to relieve pressure at a relief set point, wherein the PRV opens to direct the drilling fluid downstream of an isolation valve to the drilling mud return system without flowing through the isolation valve if the pressure is above the relief set point, wherein the PRV closes to direct the drilling fluid through an operation path if the pressure is below the relief set point;
wherein the operation path flows from the RCD through the isolation valve and at least one drilling component, wherein the at least one drilling component is distinct from the isolation valve, wherein no drilling component of the operation path is located upstream of the isolation valve;
wherein the isolation valve is connected downstream of the RCD.