Interfacial rheology in chemically-enhanced oil recovery systems

Journal Article · Mon Mar 01 04:00:00 EST 1976 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6556902

Wasan, D T; Mohan, V

Surfactants in solution tend to accumulate and adsorb at interfaces between their solution and adjacent phases. The orientation of these molecules as well as molecular interactions and molecular packing result in an interfacial behavior different from that in the bulk phases. In some instances, molecular complexing or structural tranformations like the formation of a liquid crystalline phase can occur resulting in peculiar rheological behavior. Specifically, such accumulation at oil-water interfaces results in interfacial forces which influence the geometry of the phase boundary with consequent effects on interfacial flow and area. Interfacial rheological behavior of fluid-fluid interfaces containing chemical additives is often shear, area and age dependent. For simple Newtonian fluid interfaces the significant rheological properties for interfacial motions are the interfacial sheer and dilational viscosities. As the molecular weight of the absorbate increases, the interface may exhibit viscoelastic behavior or display rigidity.

• Research Organization: Illinois Inst. Technol.
• OSTI ID: 6556902
• Journal Information: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 21:2; ISSN ACPCA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ABSORPTION
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
INTERFACES
MOLECULAR WEIGHT
OIL WELLS
PETROLEUM
RECOVERY
RHEOLOGY
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
VISCOSITY
WATERFLOODING
WELLS