Method of determining subterranean formation parameters
US8538700B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2010 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for assigning a wettability or related parameter to a subvolume of formation located between two or more boreholes is described. The method includes the steps of obtaining measurements of resistivity at a subvolume, obtaining further parameters determining a relation between resistivity and saturation from logging measurements along the two or more boreholes, obtaining geological measurements defining geological or rock-type boundaries within the formation between the two or more boreholes, selecting the subvolume such that it is intersected by the geological or rock-type boundaries; transforming the resistivity measurements into the saturation at the subvolume; and using the saturation and/or the further parameters to determine the wettability or related parameter for the subvolume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.