Experimental Evaluation of Metal Barrier Rings in Dynamic Applications Project Objective
Design, and prototyping of an experimental setup and plastic support components. The assembly forces and pressure holding capabilities of metal seals will be measured in high pressure dynamic applications after thermal aging.
Experimental Setup
Design Requirements
Shaft gland with plastic support ring assembly
Parameters
Max Pressure: 2000 psi Max Temperature: 250⁰C Gas: Oxygen, N2
• The shaft reciprocates inside the cylinder • The shaft and cylinder must be perfectly aligned • The cap seals the cylinder to allow for pressure containment while also ensuring the alignment of the shaft • The stepper motor pushes the shaft into the cylinder while the load cell sends the force readings to the LabVIEW program • The real-time pressure and temperature are recorded in LabVIEW
Plastic Support Rings
Design Concept Metal Seal
Assembly tool for initial seal assembly to the shaft
Entire Assembly
Plastic backing rings are commonly used to prevent deformation of metal seals over time, and increase the overall lifespan of the seal.
Shaft Bore
FEA Analysis C-ring seal at 3.88% compression due to assembly forces
Plastic Support Ring
Various support ring geometries were tested for their effectiveness at preventing seal deformation. All support rings were made of 30% glass filled PEEK
FEA Results With plastic support rings
Without plastic support rings (smaller mesh size)
C-ring seal at 3.88% compression with 2ksi applied Team Members: Felipe Cunningham, Yasser Khalil, Matthew Lueke, Kaamil Din, Felix Pappoe Faculty Advisor Dr. Zahed Siddique Teaching Assistant Jackson Autrey
Schlumberger Sponsors Dr. Raghu Madhavan Mr. Paulo Soares Dr. Chunnong Wang
Special Thanks Billy Mays Greg Williams
With plastic support rings
Without plastic support rings