Surfactant loss control in chemical flooding: Spectroscopic and calorimetric study of adsorption and precipitation on reservoir minerals. Annual report, September 30, 1992--September 30, 1993

Technical Report · Fri Jul 01 00:00:00 EDT 1994

DOI:https://doi.org/10.2172/10176469· OSTI ID:10176469

Somasundaran, P

The aim of this research project is to investigate mechanisms underlying adsorption and surface precipitation of flooding surfactants on reservoir minerals. Effects of surfactant structure, surfactant combinations, various inorganic and polymeric species, and solids mineralogy will be determined. A multi-pronged approach consisting of micro & nano spectroscopy, microcalorimetry, electrokinetics, surface tension and wettability; is used in this study. The results obtained should help in controlling surfactant loss in chemical flooding and in developing optimum structures and conditions for efficient chemical flooding processes. During the first year of this three year contract, adsorption of single surfactants and select surfactant mixtures was studied at the solid-liquid and gas-liquid interfaces. Surfactants studied include alkyl xylene sulfonates, polyethoxylated alkyl phenols, octaethylene glycol mono n-decyl ether, and tetradecyl trimethyl ammonium chloride. Adsorption of surfactant mixtures of varying composition was also investigated. The microstructure of the adsorbed layer was characterized using fluorescence spectroscopy. Changes interfacial properties such as wettability, electrokinetics and stability of reservoir minerals were correlated with the amount of reagent adsorbed. Strong effects of the structure of the surfactant and position of functional groups were revealed.

• Research Organization: Columbia Univ., New York, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-92BC14884
• OSTI ID: 10176469
• Report Number(s): DOE/BC/14884-5; ON: DE94000144; BR: AC1510100
• Resource Relation: Other Information: PBD: Jul 1994
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
OIL WELLS
WATERFLOODING
ADDITIVES
SURFACTANTS
ADSORPTION
ALUMINIUM OXIDES
SORPTIVE PROPERTIES
SILICA
MIXTURES
FLUORESCENCE SPECTROSCOPY
WETTABILITY
PROGRESS REPORT
EXPERIMENTAL DATA
PETROLEUM
ENHANCED RECOVERY
PHENOLS
QUATERNARY COMPOUNDS
SULFONIC ACID ESTERS
PH VALUE
020300
400201
DRILLING AND PRODUCTION
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES