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ROLLING SLEEVE THRU-TUBING BRIDGE PLUG

IP.com Disclosure Number: IPCOM000198233D
Publication Date: 2010-Aug-02
Document File: 1 page(s) / 29K

Publishing Venue

The IP.com Prior Art Database

Abstract

A bridge plug assembly having a mandrel and an annular flexible member that is selectively fashioned into a volute that extends radially outward from the mandrel for isolating a portion of a tubular. In an example, a web member is provided that runs between the flexible member and the mandrel and exits an end of the flexible member. Pulling the web member inverts an end of the flexible member rolling the sidewall of the flexible member into a volute. In another embodiment, upper and lower series of collars circumscribe the mandrel that when pushed towards one another axially squeeze the flexible member there between to outwardly bulge the flexible member into contact with a tubular. Continued force applied in the collars causes the flexible member to roll into a volute.

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ABSTRACT

A bridge plug assembly having a mandrel and an annular flexible member that is selectively fashioned into a volute that extends radially outward from the mandrel for isolating a portion of a tubular.  In an example, a web member is provided that runs between the flexible member and the mandrel and exits an end of the flexible member.  Pulling the web member inverts an end of the flexible member rolling the sidewall of the flexible member into a volute. In another embodiment, upper and lower series of collars circumscribe the mandrel that when pushed towards one another axially squeeze the flexible member there between to outwardly bulge the flexible member into contact with a tubular.  Continued force applied in the collars causes the flexible member to roll into a volute.