Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis
US7565833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Sep 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/543
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Data from a string of multiple formation evaluation data sensor are evaluated by an expert system. Based on the analysis, the logging speed is increased if all the sensors justify it, and is reduced if any of the sensors require a reduced logging speed. Alternatively, the sensitive volume of a NMR sensor is altered based on a determination of a fraction of the sensitive volume that includes a borehole fluid. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.