Apparatus and method for measuring concentrations of...

Details Apparatus and method for measuring concentrations of... Apparatus and method for measuring concentrations of...

E - Fixed Constructions

21

B

E21B 49/08 (2006.01) G01N 27/26 (2006.01)

Patent

CA 2532181

This invention relates to methods and apparatus for determination of ion concentrations, particularly in downhole water from hydrocarbon wells, aquifers etc. It is useful in a wide range of applications, including predicting the formation of scale and fingerprinting waters from different sources. More particularly, the invention relates to the use of ligands whose electronic configuration is altered by the binding of the scaling ions within a water sample. These alterations are detected, for example by electrochemical means, and are indicative of the concentration of scaling ions in the sample.

L'invention concerne des procédés et un appareil de détermination de concentrations ioniques, notamment, dans de l'eau de fond provenant de puits pétrolifères, d'aquifères etc. Lesdits procédés sont utilisés dans une importante gamme d'applications, notamment, la prédiction de la formation de tartre et d'eaux d'empreinte provenant de différentes sources. Plus spécifiquement, cette invention a trait à l'utilisation de ligands dont la configuration électronique est modifiée par la liaison d'ions entartrants au sein d'un échantillon d'eau. Ces modifications sont détectées, par exemple, par un dispositif électrochimique, et elles indiquent la concentration d'ions entartrants dans l'échantillon.

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