... utilizing finite element analysis were used to fully simulate the combined load conditions during the qualification program that mimic field conditions and meet and exceed industry standard requirements. Special consideration was given to connector make-up and metal-to-metal sealing technology, superior...

.... It was noted in previous studies that further experimental work is required to better understand connection sealing behavior, especially the effects of surface roughness and thread compounds. This paper presents an experimental study with a series of small-scale metal-to-metal seal tests under various levels...

... Abstract API flanges maintain integrity through metal-to-metal seal between gasket and flange groove, where sealability depends on contact stresses through bolt makeup-load, tension, fluid-pressure, bending moment. Approaches like API-6AF2 have limitations. With increased deep-water operations...

... stress profile on the radial seal surface, surface roughness, thread compounds and various other factors such as environmental impacts. This paper presents experimental work that has been undertaken to investigate the metal-to-metal seal behavior in premium casing connections. The physical tests...

... to and includingburst. For prospective designs, this may involve bore pressures greater than30000 psi (2270 bar). The chosen seal design must also allow for deformationsof the polymeric and metallic components, and should maintain sufficientcontact pressure at the seal interfaces during short-term ultra high...

... performance. This paper describes a new contoured, non-resilient flapper (CNRF) closure mechanism that achieves a true metal-to-metal seal without an elastomeric or resilient seal and passes API 14A Class I and II testing. The CNRF technology can be incorporated into both the conventional "flat plate" flapper...