Methods and systems for correction of oil-based mud filtrate contamination on saturation pressure
US10371690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2014 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the disclosure can include systems, methods, and devices for determining saturation pressure of an uncontaminated fluid. Downhole saturation pressure measurements and downhole OBM filtrate contamination of a contaminated fluid may be obtained and a relationship may be determined between the saturation pressure measurements and OBM filtrate contamination. The relationship may be extrapolated to zero OBM filtrate contamination to determine the saturation pressure of the uncontaminated fluid. In some embodiments, OBM filtrate contamination may be determined from downhole saturation pressure measurements during pumpout of a fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.