Expandable polymer grout for sealing subterranean formations
US12378842B1 · kind B1 · utility
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16Claims
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Key dates
| Filing date | Feb 2, 2024 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Feb 2, 2044 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/138
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An open hole formation surface within a wellbore of a well system is sealed with a polymer seal. A deployment system is inserted into the wellbore to the location of the open hole formation surface. The open hole formation surface may be located at the bottom of the wellbore or at an interval between two casing strings. The deployment system delivers an expandable polymer grout system to the location of the open hole formation surface. The expandable polymer grout system cures to form the polymer seal on the open hole formation surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.