Cation exchange: cemical flooding experiments

Conference · Sat Jan 01 04:00:00 EST 1977 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6560077

Hill, H J; Lake, L W

Mass action equilibria equations provide a good description of cation exchange effects in laboratory floods with solutions containing sodium, calcium, and magnesium cations. These equations can aid in the design of prefloods for surfactant and polymer processes. Cation exchange in the presence of a surfactant system is found to be significantly complicated by interaction between surfactant and divalent cations. The evidence suggests that a divalent cation-surfactant complex may be a new exchangeable species. Both divalent cation and surfactant transport are qualitatively described by a model which incorportes Langmuir chemisorption and a divalent cation-surfactant complex. Surfactant adsorption in Berea rock was reduced by a factor of one-fifth by reducing divalent cation concentration in the surfactant from 300 ppm to zero, dissolving carbonate minerals from the core and converting clays to the sodium form. (30 refs.)

• Research Organization: Shell Development Co.
• OSTI ID: 6560077
• Report Number(s): CONF-771014-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-6770
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADSORPTION
ALKALI METALS
ALKALINE EARTH METALS
BENCH-SCALE EXPERIMENTS
CALCIUM
CARBON COMPOUNDS
CARBONATES
CATIONS
CHARGED PARTICLES
CLAYS
COMPLEXES
ELEMENTS
EQUATIONS
FLUID FLOW
FLUID INJECTION
ION EXCHANGE
IONS
MAGNESIUM
MATHEMATICAL MODELS
METALS
OIL WELLS
OXYGEN COMPOUNDS
POLYMERS
ROCKS
SODIUM
SORPTION
SURFACTANTS
VALENCE
WATERFLOODING
WELLS