US 9,308,566 B2 · Compliant expansion swage

Abstract

The present invention generally relates to a swage assembly that is movable from a compliant configuration having a first shape to a substantially non-compliant configuration having a second shape. In one aspect, an expansion swage for expanding a wellbore tubular is provided. The expansion swage includes a body and a solid cone disposed on the body. The expansion swage further includes a deformable cone disposed on the body, wherein the solid cone is made from a first material and the deformable cone is made from a second material and wherein the deformable cone is movable relative to the body when the expansion swage is in a compliant configuration. In another aspect, a method of expanding a wellbore tubular is provided.

Claims15

Dependent claims

An expansion swage for expanding a tubular, comprising:

an inner mandrel;
a compliant member coupled to the inner mandrel;
and
a plurality of cone segments coupled to the compliant member,
wherein the cone segments are configured to expand the tubular, wherein adjacent cone segments are separated by a gap that extends along a longitudinal length of the adjacent cone segments such that each end of each cone segment is separate from each end of each adjacent cone segment, wherein the compliant member is positioned between the inner mandrel and the cone segments, wherein the compliant member is configured to move the cone segments radially outward from a contracted position to an original position, and wherein the compliant member is configured to plastically deform in response to contact by the cone segments with the interior of the tubular when subjected to a stress above a threshold value.

2 more elements

Dependencies are inferred from the claim text.

Compliant expansion swage

Life of this patent

Compliant expansion swage

Life of this patent

Abstract

Claims15