Downhole logging system with azimuthal and radial sensitivity
US9690006B2 · kind B2 · utility
0Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the invention provide a downhole tool that includes a photon source, a photon detector having a plurality of detector pixels in a cylindrical row and column arrangement, and a radial collimator having at least two concentric frustoconical collimators circumferentially arranged about the photon detector and at least two azimuthal collimating members radially arranged with respect to the photon detector, wherein one of the azimuthal collimating members is on a first side of a detector pixel and a second azimuthal collimator is on a second side of a detector pixel opposite the first side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.