The influence of simple carboxylates on oilfield chemistry measurements, steel corrosion, and corrosion inhibition was studied. In most cases, the error in the field measurement of dissolved CO2 was found to be small. In all but two cases examined, the error in bicarbonate ions measurement was small because of the large actual bicarbonate ion to carboxylate ratio.

The presence of acetate and propionate ions in laboratory tests always accelerated the uninhibited corrosion rate of mild steel because of an increase in cathodic kinetics when the steel was behaving actively. In passive systems, anodic increases were seen.

Both acetate and propionate were detected in field samples; in only one case butyrate was observed. Corrosion inhibitors were effective at controlling corrosion even in the presence of these ions in both laboratory and field conditions.

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