Multi-dimensional dielectric logging
US11048013B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2017 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Mar 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A conductivity model is used for a logging tool and surrounding borehole and formation. The conductivity model is separable into a background conductivity model and an anomalous conductivity model for at least one of the formation and the tool. With the conductivity model, background electromagnetic fields and Green's functions corresponding to electromagnetic field signals at one or more receivers are computed for inversion of measured electromagnetic signals to determine adjustable parameters associated with anomalous conductivity. From the inversion, dielectric and other electromagnetic properties of the formation and borehole are determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.