Downhole tool apparatus, system, and methods
US10386533B2 · kind B2 · utility
0Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2015 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A downhole tool can include a photon beam source configured to transmit a photon beam into materials lining a wellbore. The materials may comprise fluid, casing, and cement. A photon detector in the tool is configured to count detected photons received at a predetermined angle from the materials. The density of the borehole material may be determined in response to the number of detected photons. Changes in a distribution of a plurality of photon count ratio values may indicate the standoff distance. Additional apparatus, systems, and methods are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.