Method of analysing drilling fluids

Details Method of analysing drilling fluids Method of analysing drilling fluids

G - Physics

01

N

G01N 21/35 (2006.01) G01N 33/28 (2006.01)

Patent

CA 2138213

A method of quantitative analysis of free organic components in a drilling fluid comprising separating solid and liquid components of the drilling fluid using a non--filtering technique such as centrifuging, mixing a sample of the liquid components with a solution of an inorganic carrier such as 2M KBr and analysing the mixture using infrared spectroscopy so as to determine the amount of organic components in the mixture and deriving the amount of free organic components in the drilling fluid from this analysis. In one embodiment, the mixture is dried to leave a solid mixture of the organic components and the carrier. In this case, the sample is preferably analysed using a reflectance technique such as diffuse reflectance infrared spectroscopy. In another embodiment, the mixture is analysed as a liquid, preferably using a direct transmission technique. In both the liquid and solid cases, Fourier transform infrared spectroscopy is preferred.

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