Adsorption/desorption of sulfonates by reservoir rock minerals in solutions of varying sulfonate concentrations

Journal Article · Sat Jun 01 04:00:00 EDT 1985 · SPEJ, Soc. Pet. Eng. J.; (United States)

DOI:https://doi.org/10.2118/10603-PA· OSTI ID:5199776

Pomasundaran, P; Hanna, H S

In micellar flooding, reservoir rocks are exposed to surfactant solutions of varying concentrations as the surfactant slug advances through the reservoir. Therefore, the attachment and detachment of sulfonates with rocks that are already exposed to surfactant solutions of higher or lower concentrations is of major interest. In this study, the abstraction behavior of purified Na-dodecylbenzenesulfonate on Na-kaolinite by stepwise increase in surfactant concentration is determined. Deabstraction* occurring after reductions in surfactant concentrations at various stages also is determined. Most importantly, the results of incremental abstraction, individual abstraction, and deabstraction showed the system to exhibit hysteresis or memory effects. Also, abstractions obtained at various pH values and during stepwise changes in pH exhibited marked differences. The deabstraction isotherms showed the presence of maximum in certain cases, indicating the occurrence of maximum on the abstraction isotherms to be a real phenomenon. Possible reasons for the hysteresis are considered, and the practical implications of these memory effects on micellar flooding and depletion experiments using cores are discussed.

• Research Organization: Columbia Univ.
• OSTI ID: 5199776
• Journal Information: SPEJ, Soc. Pet. Eng. J.; (United States), Journal Name: SPEJ, Soc. Pet. Eng. J.; (United States) Vol. 25:3; ISSN SSPJD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ADSORPTION
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
DESORPTION
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
KAOLINITE
MICROEMULSION FLOODING
MINERALS
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
RESERVOIR ROCK
ROCK-FLUID INTERACTIONS
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SORPTION
SULFONATES
WELLS