Characterizing a wellbore depth interval from rock fragments
US10669844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2014 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Jan 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3595
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for characterizing a wellbore depth interval from rock fragments, including a method that includes converting measurements of a bulk rock fragment sample and of individual rock fragment samples to a concentration percent, computing a normalization deviation for each of the individual rock fragment samples relative to the bulk rock fragment sample (said normalization deviation being derived from the concentration percent of the bulk and individual rock fragment samples) and ranking the individual rock fragment samples based on a corresponding normalization deviation. The method further includes selecting one or more individual rock fragment samples based on a corresponding ranking, characterizing the properties of the wellbore depth interval from which the bulk and individual rock fragment samples originated using measured properties of at least some of the selected individual rock fragment samples and presenting to a user the characterized wellbore depth interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.