Adsorption calorimetry in enhanced oil recovery

Conference · Sun May 01 00:00:00 EDT 1988 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:7072749

Noll, L A

Adsorption calorimetry is a technique which has been used at the National Institute for Petroleum and Energy Reserch (NIPER) to help in the understanding of adsorption as it impacts enhanced oil recovery by chemical flooding. Abstraction of chemicals by reservoir minerals comprises a major obstacle to the technical and economic success of this process. Adsorption is also important in other fields such as catalysis, lubrication, ore flotation, and printing. Adsorption calorimetry is useful because it measures both the amount of adsorption and its enthalpy. The enthalpy helps to guide the extrapolation of adsorption to higher temperatures as well as acting as a probe of surface properties such as heterogeneity. Adsorption calorimetry helps to distinguish physical from chemisorption. It is also useful in distinguishing water-wet from oil-wet surfaces. This paper discusses flow adsorption calorimetry. The advantage of using a flowing system over the classic immersion technique is that it is fast and easy to use, and data for the entire isotherm are collected on a single sample of solid. In flow calorimetry the surface excess amount and the thermal data are obtained simultaneously on one and the same sample of solid, thus avoiding some sampling problems. Some disadvantages of the method are somewhat short equilibration times and the cumulative nature of the data. Aspects of adsorption of special interest to enhanced oil recovery such as the nature and charge of minerals, the structure and charge of surfactants, the effects of brine and temperature, and the effects of aqueous or hydrocarbon environment are important parameters of surfactant flooding; they are treated in this paper.

• Research Organization: IIT Research Institute, National Institute for Petroleum and Energy Research, P.O. Box 2128, Bartlesville, OK (US)
• OSTI ID: 7072749
• Report Number(s): CONF-880659-
• Journal Information: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 33:1; Conference: ACS symposium on advances in oil field chemistry, Toronto, Canada, 5 Jun 1988
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
PETROLEUM
ENHANCED RECOVERY
BRINES
CALORIMETRY
CHEMISORPTION
ENTHALPY
MICROEMULSION FLOODING
NIPER
RESEARCH PROGRAMS
TECHNOLOGY ASSESSMENT
TEMPERATURE EFFECTS
CHEMICAL REACTIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
MISCIBLE-PHASE DISPLACEMENT
NATIONAL ORGANIZATIONS
PHYSICAL PROPERTIES
RECOVERY
SEPARATION PROCESSES
SORPTION
THERMODYNAMIC PROPERTIES
US DOE
US ORGANIZATIONS
020300* - Petroleum- Drilling & Production
400201 - Chemical & Physicochemical Properties
400102 - Chemical & Spectral Procedures