Changes

The process where [[asphaltenes]] precipitate from [[crude oil]]. Laboratory or refinery deasphalting is achieved by adding light hydrocarbons, such as [[pentane]] r [[hexane]], to the oil. A similar process can occur in nature when [[methane]] and other light hydrocarbons that escape from deep reservoirs enter a shallower oil reservoir.<ref name=Petersetal_2012>Peters, Kenneth E., David J. Curry, and Marek Kacewicz, 2012, [http://archives.datapages.com/data/specpubs/hedberg4/INTRODUCTION/INTRODUCTION.HTM An overview of basin and petroleum system modeling: Definitions and concepts], ''in'' Peters, Kenneth E., David J. Curry, and Marek Kacewicz, eds., Basin modeling: New horizons in research and applications: [http://store.aapg.org/detail.aspx?id=1106 AAPG Hedberg Series no. 4], p. 1-16.</ref>

The process where [[asphaltenes]] precipitate from [[crude oil]]. Laboratory or refinery deasphalting is achieved by adding light hydrocarbons, such as [[pentane]] or [[hexane]], to the oil. A similar process can occur in nature when [[methane]] and other light hydrocarbons that escape from deep reservoirs enter a shallower oil reservoir.<ref name=Petersetal_2012>Peters, Kenneth E., David J. Curry, and Marek Kacewicz, 2012, [http://archives.datapages.com/data/specpubs/hedberg4/INTRODUCTION/INTRODUCTION.HTM An overview of basin and petroleum system modeling: Definitions and concepts], ''in'' Peters, Kenneth E., David J. Curry, and Marek Kacewicz, eds., Basin modeling: New horizons in research and applications: [http://store.aapg.org/detail.aspx?id=1106 AAPG Hedberg Series no. 4], p. 1-16.</ref>