Repairing micro annulus for self-healing cements
US12428930B2 · kind B2 · utility
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29References
20Claims
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Key dates
| Filing date | May 1, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | May 1, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/117
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Described herein are methods of treating cement leaks in a hydrocarbon well. The methods include detecting a leak in a cement structure of the well, in response to detection of the leak, flowing a stimulus fluid containing hydrocarbon species into the well in contact with the cement structure, and monitoring flow of the stimulus fluid to observe closure of a leakage pathway of the cement structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.