Collapsible cone for an expandable liner hanger system
US10837265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Aug 17, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B29/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An expandable liner hanger system and method of installing same. In an exemplary embodiment, the method includes positioning the expandable liner hanger system within a casing string, the expandable liner hanger system including a setting tool disposed within a hanger body, the setting tool including a cone mandrel defining a tapered external surface and an expansion cone defining a tapered internal surface; engaging the tapered external surface with the tapered internal surface; radially expanding the hanger body to engage the casing string by displacing the cone mandrel and the expansion cone in a first axial direction and relative to the hanger body; displacing the cone mandrel in a second axial direction and relative to the expansion cone to disengage the tapered internal surface from the tapered external surface, thus permitting the expansion cone to bell radially inward from the hanger body; and extricating the expansion cone from the hanger body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.