Physics
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.2395b&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 46, Issue 11, pp.2395-2397
Physics
1
Scientific paper
Solubilities of methane in multisalt solutions at 550 psia and 25°C can be predicted from single-salt salting coefficients. The ionic strength contribution of the ith salt, I i , is multiplied by its molal salting coefficient, k mi , in the following summation over all salts: where m o and m s are molal methane solubilities in distilled water and the salt solution, respectively, at the T, P and methane fugacity of interest. This equation predicts methane solubility in multisalt brines containing Na + , K + , Mg +2 , Ca +2 , Cl - , SO 4 -2 and CO 3 -2 ions. k mi values reported by Stoessell and Byrne (1982b) can be used in solubility predictions in brines at earth surface conditions. Prediction in reservoir brines would require determination of k mi , for the different salts at reservoir temperatures and pressures.
Byrne Patricia A.
Stoessell Ronald K.
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