Pressure reducing metal elements for liner hangers
US11499399B2 · kind B2 · utility
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48References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 18, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Dec 18, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Liner hangers and methods of use. An example method includes positioning a liner hanger in a wellbore; the liner hanger comprising: two sealing elements disposed on the exterior of the liner hanger and having a void space therebetween, and a pressure reducing metal element disposed between the two sealing elements. The method further includes trapping a wellbore fluid in the void space; wherein the wellbore fluid thermally expands in the void space creating an annular pressure in the void space; and reducing the annular pressure by materially altering the pressure reducing metal element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.