Back titration methods for scaling cations and downhole tools for performing such methods
US9891206B2 · kind B2 · utility
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12References
23Claims
0Family size
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Key dates
| Filing date | Jan 10, 2014 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2835
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining scaling cation concentration may include introducing a first solution that includes a scaling cation, incrementally adding a portion of the first solution to a volume of a second solution comprising a counter scaling anion and a complexing agent, wherein the second solution comprises a fixed concentration of the counter scaling anion and the agent, to form a mixed solution, adding the first solution to the second solution until a precipitate of the scaling cation and the counter scaling anion forms, and determining the scaling cation concentration of the first solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.