Patent ID: 6142227
Filing Date: 2000-11-07
Classification: E21B

Abstract:
A bridge plug for use in a casing, comprising a packing element of a resilient material, where the packing element is adapted for, at impact from a running tool, to expand from a first diameter, to a second diameter that is greater than the first diameter corresponding to an inner diameter of the casing to be sealed, wherein the packing element includes at least one expandable sealing packing element and at least one expandable support packing element where the support packing elements expand to a smaller diameter than the sealing packing elements, and that the bridge plug further comprises an anchoring means that is provided for holding the bridge plug in place in the casing by a friction surface that is pressed radially out against the casing, the packing element having an inner core disposed between two conical packing element clamps, a reinforcement disposed over the inner core, and an outer layer molded to the reinforcement and the core, the inner core being composed of a resilient material and the reinforcement being wound over the inner core and connected to the clamps.