Abstract
Xanthan gum is used extensively for enhanced oil recovery as a mobility control agent, in drilling operations to increase the suspension capacity of the drilling mud, and in gels to improve the volumetric sweep efficiency. Flow properties, injectivity, and adsorption characteristics depend on acetate and pyruvate content of xanthan. This review discusses various methods and techniques available for measuring the concentration of xanthan and its pyruvate and acetate content in laboratory and field samples. It includes a description of the principles of each method, advantages, limitations, interferences, and other information necessary to understand the strengths and weaknesses of each.
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