Paramount Design LLC

Brian Wilkinson

Loren C Swor

The present disclosure describes systems and methods for setting and sealing a plug in a casing within a downhole bore. This includes deploying into the casing a plug assembly comprising a tubular metal seal and deploying into the casing a setting tool. The tubular metal seal can be expanded radially to a first radial diameter with the setting tool by moving the setting tool longitudinally such that a tapered exterior portion of the first end of the setting tool engages a tapered interior portion of the first end of the tubular metal seal. The setting tool can then be removed from the casing. The method may comprise expanding the tubular metal seal radially to a second radial diameter by pumping fluid into the plug assembly such that the exterior of the tubular metal seal engages an interior of the casing.

Method for setting a frac plug with a tubular metal seal

The present disclosure describes systems and methods for flow-activated plug assembly flow seat initiation, which in some aspects may comprise sealing a plug within a downhole bore, and may include a plug assembly comprising a frustoconical tube; a tubular mandrel positioned longitudinally through the frustoconical tube and having port(s) fluidly connecting a mandrel bore with the bore of the frustoconical tube, and having a shear ring extending from the mandrel; and a ball configured to fluidly seal the proximal end of the tubular mandrel; wherein the tubular mandrel is configured to move between a first position having a fluid passageway through the ports and a second position wherein the shear ring has been sheared away when a predetermined fluid pressure is applied to the plug assembly and the tubular mandrel is positioned relative to the frustoconical tube such that the port(s) are blocked, closing the fluid passageway.

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Duncan, OK, United States of America

Brian Wilkinson