Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1992-04-09
1993-12-21
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
166902, G01N 2133, E21B 4102
Patent
active
052723461
ABSTRACT:
The concentration of a water soluble corrosion inhibitor formulation in the water of an aqueous system is monitored by a UV absorption method which is based upon the measurement of the absorbance of a component of corrosion inhibitor formulation. The method is particularly suited to on-site determinations of inhibitor residuals in large aqueous systems, such as in oil field applications, which have an acute need for rapid and adaptable assays, so as to provide precise information before corrosion damage can occur.
REFERENCES:
patent: 4665981 (1987-05-01), Hayatdavoudi
patent: 5152177 (1992-10-01), Buck et al.
The Nalco Water Handbook, 2nd Edition, Nalco Chemical Company, 1988, pp. 43.1-43.23: Chapter 43, "Oil Field Water Technology".
J. A. martin and F. W. Valone, "Spectroscopic Techniques for Quality Assurance of Oil Field Corrosion Inhibitors". Corrosion NACE, vol. 41, No. 8 (Aug. 1985) pp. 465-473.
J. A. Martin and F. W. Malone, "The Existence of Imidazoline Corrosion Inhibitors." Corrosion NACE, vol. 41, No. 5 (May 1985) pp. 281-287.
Kaplan Roy I.
Strickland J. Byron
Barrett Joseph B.
Hannaher Constantine
Miller Robert A.
Nalco Chemical Company
Norek Joan I.
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