Concurrent oil saturation and porosity imaging using completion-based on-demand electrodes
US12222464B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jun 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for determining electrical characteristics of a subsurface formation are disclosed. The method may include installing a first electrically insulating spacer between well liners in the well to form an on-demand electromagnetic source electrode and installing a second electrically insulating spacer between well liners in the well to form an on-demand electromagnetic receiver electrode. The method may further include performing an electrical survey using the on-demand electromagnetic source and receiver electrodes, determining a map of the at least one electrical characteristic in a subsurface region surrounding on-demand electromagnetic source and receiver electrodes based on the electrical survey, determining a map of at least one formation property based on the map of the electrical characteristic, and updating a hydrocarbon reservoir production plan based on the map of at least one formation property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.