Method and apparatus for consistent and robust fitting in oil based mud filtrate contamination monitoring from multiple downhole sensors
US10316655B2 · kind B2 · utility
2Cited by
6References
9Claims
0Family size
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Key dates
| Filing date | Nov 20, 2013 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Apr 21, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for performing contamination monitoring through estimation wherein measured data for optical density, gas to oil ratio, mass density and composition of fluid components are used to obtain plotting data and the plotting data is extrapolated to obtain contamination levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.