Changes

==Water washing==

==Water washing==

Water washing is the dissolution of light molecular species from oil and gas into water.<ref name=ch11r21>Lafargue, E., Barker, C., 1988, [http://archives.datapages.com/data/bulletns/1988-89/data/pg/0072/0003/0250/0263.htm Effect of water washing on crude oil composition]: AAPG Bulletin, vol. 72, p. 263–276.</ref> Significant water washing requires rapid water flow under the [[accumulation]]. Light aromatic molecules are affected most severely. Severe water washing may remove at most 5–10% of the oil mass, so it does not lead to destruction of accumulations by itself. Water washing at shallow depths is usually accompanied by biodegradation and devolatilization.

Water washing is the dissolution of light molecular species from oil and gas into water.<ref name=ch11r21>Lafargue, E., and C. Barker, 1988, [http://archives.datapages.com/data/bulletns/1988-89/data/pg/0072/0003/0250/0263.htm Effect of water washing on crude oil composition]: AAPG Bulletin, vol. 72, p. 263–276.</ref> Significant water washing requires rapid water flow under the [[accumulation]]. Light aromatic molecules are affected most severely. Severe water washing may remove at most 5–10% of the oil mass, so it does not lead to destruction of accumulations by itself. Water washing at shallow depths is usually accompanied by biodegradation and devolatilization.

==Devolatilization==

==Devolatilization==