Interaction of Petroleum Heavy Ends with Montmorillonite

David M. Clementz
Chevron Oil Field Research Company, La Habra, CA 90631

Abstract: Adsorption of asphaltenes and resins onto montmorillonite occurs rapidly and to a large extent irreversibly under near-anhydrous laboratory conditions. Factors which influence the adsorption are the exchangeable cation on the clay, the basic nitrogen components of the molecules, and the solvent. As a result of this adsorption, the physical and chemical properties of the clay are drastically altered. The fundamental principles revealed in this study lead to a better understanding of the physical and chemical behavior of clays in petroleum reservoirs.

Clays and Clay Minerals; December 1976 v. 24; no. 6; p. 312-319; DOI: 10.1346/CCMN.1976.0240607
© 1976, The Clay Minerals Society
Clay Minerals Society (www.clays.org)