Well Tool with Dynamic Metal-to-Metal Shape Memory Material Seal

摘要

A well tool can include sealing surfaces, and a shape memory material seal which dynamically seals between the sealing surfaces with metal-to-metal contact between the shape memory material seal and each of the sealing surfaces. A method of sealing in a well tool can include forming a shape memory material seal, heat treating the seal, then deforming the seal, then installing the seal in the well tool, and then heating the seal, thereby causing the seal to expand into metal-to-metal sealing contact with a sealing surface which displaces relative to the shape memory material seal. A drill bit can include sealing surfaces formed on a cone and a journal of the drill bit, and a shape memory material seal which dynamically seals between the sealing surfaces with metal-to-metal contact between the shape memory material seal and each of the sealing surfaces.

主权项

1. A well tool, comprising:
first and second sealing surfaces; and a shape memory material seal which dynamically seals between the first and second sealing surfaces with metal-to-metal contact between the shape memory material seal and each of the first and second sealing surfaces.