Methods of monitoring downhole conditions
US7357021B2 · kind B2 · utility
44Cited by
21References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods of monitoring various downhole conditions are described, including a system for determining and/or identifying the flow of fluid in a well, determining sand production in a well, identifying localized events in a well, determining the apparent flow velocity of fluid flowing through a downhole conduit, and/or monitoring the strain in downhole tubulars. These determinations may be made by monitoring signals received from one or more sensors located in a well and analysing the signals, such as their frequency and timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.