Minimize trapped fluid impact on expandable liner hangers in geothermal applications
US11156065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Apr 4, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method for performing subterranean operations. The system may comprise an expandable liner hanger positioned within a casing string, wherein the expandable liner hanger comprises a spiked portion having one or more anchoring ridges, each of the one or more anchoring ridges extending in a circular ring along an outer perimeter of the expandable liner hanger, and one or more weep holes are positioned in a space between adjacent ones of the one or more anchoring ridges. The method for coupling a liner to a casing string of a cased wellbore in a subterranean formation may comprise coupling an expandable liner hanger to the liner, inserting the liner and the expandable liner hanger downhole through the casing string, and expanding the plurality of anchoring ridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.