000			01914nab a2200193 4500
005			20260520001842.0
008			260224s2009 xxu
245	0	0	_aMeasurement of acid reaction rates with the rotating disk apparatus
260			_a _b _cjun. 2009
270			_a05/08/2010 ; 05/08/2010
300			_a5 p. ; 66-70
520			_aTranscripción del resumen del autor. The authors have published several papers on the rotating disk apparatus (RDA) in recent years. The RDA is used to measure acid reaction rates, reaction order and activation energy of acidizing fluids with carbonate reservoir rock. This paper summarizes the different ways that acid reaction rates are measured, the factors that affect the results and why this is important when modelling acid stimulation treatments in the field. In particular, experimental procedures used to obtain acid reaction rates vary widely and can produce very different results. These procedures are often not well-documented in the literature. The validity of different experimental procedures are carefully compared in this paper. In addition to experimental concerns, the reactivity of reservoir rock can also vary widely. It was recently reported that the reactivity of reservoir rock toward acid is strongly affected by mineralogy and by mineral impurities. In particular, clay impurities in calcite rock were found to reduce the dissolution rate by nearly an order of magnitude. Some calcite rocks with clay content as low as 1 wt% showed acid reactivity similar to that of 100 wt% dolomite. Acidizing additives such as polymers and corrosion inhibitors have been shown to significantly affect the way that acid reacts with the reservoir rock.
581			_a6
773	0		_tJournal of Canadian Petroleum Technology _g48
942			_cARTICULO
100	1		_aTaylor, K.C. _912182
100	1		_aNasr-El-Din, H.A. _912183
999			_c175772 _d175772