Method to estimate saturation pressure of flow-line fluid with its associated uncertainty during sampling operations downhole and application thereof
US10746019B2 · kind B2 · utility
2Cited by
13References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Feb 3, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/0875
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method includes pumping fluid from outside of a downhole tool through a flowline of the downhole tool with a pump. The method further includes taking a first plurality of measurements over time using at least one sensor and estimating a future saturation pressure of the fluid within the flowline at constant time increments via a processor based at least in part on the first plurality of measurements and a saturation pressure model. The method further includes adjusting the flowline pressure to maintain the pressure of the flowline above the estimated future saturation pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.