Method of acoustic surveying
US10196890B2 · kind B2 · utility
1Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Dec 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to the use of distributed optical fibre sensors for distributed acoustic sensing, and in particular, modal analysis of distributed acoustic data obtained in-well to monitoring well integrity. By determining one or more acoustic modes corresponding to distributed speed of sound measurements within the wellbore, and analysing variations in the distributed speed of sound measurement it is possible to derive information relating to a formation and/or fluid in the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.