Radiant energy – Geological testing or irradiation – With sampling
Patent
1994-12-14
1996-09-17
Fields, Carolyn E.
Radiant energy
Geological testing or irradiation
With sampling
250256, 25033912, G01N 2135, G01N 3324
Patent
active
055571034
ABSTRACT:
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 analyzing 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 analyzed using a reflectance technique such as diffuse reflectance infrared spectroscopy. In another embodiment, the mixture is analyzed as a liquid, preferably using a direct transmission technique. In both the liquid and solid cases, Fourier transform infrared spectroscopy is preferred.
REFERENCES:
patent: 4878382 (1989-11-01), Jones et al.
patent: 5161409 (1992-11-01), Hughes et al.
patent: 5306909 (1994-04-01), Jones et al.
patent: 5360738 (1994-11-01), Jones et al.
Coveney Peter V.
Hughes Trevor L.
Ladva Hemant K. J.
Dowell, a division of Schlumberger Technology Corp.
Fields Carolyn E.
Glick Edward J.
Vick, Jr. John E.
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