Phase separation detection in downhole fluid sampling
US8528396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2009 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/082
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Example methods and apparatus to detect phase separation in downhole fluid sampling operations are disclosed. An example method to detect a phase separation condition of a fluid from a subterranean involves obtaining a sample of the fluid, measuring a first characteristic value of the sample, measuring a second characteristic value of the sample and comparing the first characteristic value to a first reference value associated with a single-phase condition of the fluid to generate a corresponding first comparison result. The example method then compares the second characteristic value to a second reference value associated with the single-phase condition of the fluid to generate a corresponding second comparison result and detects the phase separation condition of the fluid based on the first and second comparison results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.