Patent ID: 9194218
Filing Date: 2015-11-24
Classification: E21B,Y10T

Abstract:
1. A downhole tubular sealing assembly for sealing an opening in a well tubular structure in a borehole downhole by moving an expansion means through the tubular assembly, comprising: a first tubular part made of metal having an inner face, an inner diameter, an outer diameter and a first length in an unexpanded state, and a second tubular part having a metal outer face, an outer diameter and a second length, and being arranged inside the first tubular part in the unexpanded state, the first tubular part being made of a metal material having a higher modulus of elasticity or Young's modulus than that of the second tubular part, and the first and the second tubular parts being adapted to be expanded, wherein the inner face of the first tubular part is fastened to the metal outer face of the second tubular part before expansion and is configured to be released from the metal outer face after expansion and the largest outer diameter of the second tubular part is substantially equal to the inner diameter of the first tubular part in the unexpanded state of the tubular sealing assembly.