Wettability estimation using magnetic resonance
US9746576B2 · kind B2 · utility
8Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jan 17, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of estimating a wettability characteristic of a formation includes: disposing a magnetic resonance (MR) measurement apparatus in a borehole; generating a low gradient static magnetic field and an oscillating magnetic field in a region of the formation; detecting a MR signal generated in the region; calculating relaxation parameters for at least one fluid in the region; and estimating the wettability characteristic of the region based on the relaxation parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.