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Title: Experimental investigation of the effects of temperature, pressure, and crude oil composition on interfacial properties

Abstract

The wettability of the fluid/rock system affects the distribution of fluids within a porous medium and this distribution in turn has a strong effect on displacement behaviour and oil recovery efficiency. The present work is an investigation on the influence of temperature, pressure, and oil composition on the wettability of a specific carbonate reservoir. Contact angle measurements were used to quantify wettabilities on calcium carbonate crystals. The experimental conditions included varying temperature and pressure using both dead crude oil and oil recombined to the original bubble point. In addition to quantification of wetting properties, interfacial tension between oil and water was measured, and formation of rigid films was observed. A complete reversal from a predominantly oil-wet system at lower temperatures to a predominantly water-wet system at higher temperatures was found. Pressure alone had little effect on the wettability of the system. Interfacial tension between crude oil and brine showed an increase with temperature under anaerobic conditions, whereas at aerobic conditions, interfacial tension decreased with temperature. The tendency to form rigid films at the crude oil/brine interface was found to be temperature dependent. The formation of rigid films was stronger at lower temperatures.

Authors:
;
Publication Date:
Research Org.:
Petroleum Technology Research Inst.
OSTI Identifier:
5362024
Report Number(s):
CONF-8310121-
Journal ID: CODEN: SEAPA
Resource Type:
Conference
Journal Name:
Soc. Pet. Eng. AIME, Pap.; (United States)
Additional Journal Information:
Journal Volume: SPE 12124; Conference: SPE annual technical conference, San Francisco, CA, USA, 5 Oct 1983
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; OIL FIELDS; GEOPHYSICAL SURVEYS; RESERVOIR FLUIDS; CHEMICAL COMPOSITION; SURFACE TENSION; RESERVOIR ROCK; WETTABILITY; BRINES; CARBONATE ROCKS; EFFICIENCY; ENHANCED RECOVERY; FLUID FLOW; HYDRAULIC CONDUCTIVITY; HYDRODYNAMICS; OIL SATURATION; OPTIMIZATION; PETROLEUM; PETROLOGY; POROSITY; RESERVOIR PRESSURE; RESERVOIR TEMPERATURE; ROCK-FLUID INTERACTIONS; WATER SATURATION; WELL LOGGING; ENERGY SOURCES; FLUID MECHANICS; FLUIDS; FOSSIL FUELS; FUELS; GEOLOGIC DEPOSITS; GEOLOGY; MECHANICS; MINERAL RESOURCES; PETROLEUM DEPOSITS; RECOVERY; RESOURCES; ROCKS; SATURATION; SEDIMENTARY ROCKS; SURFACE PROPERTIES; SURVEYS; 020300* - Petroleum- Drilling & Production

Citation Formats

Hjelmeland, O, and Larrondo, L. Experimental investigation of the effects of temperature, pressure, and crude oil composition on interfacial properties. United States: N. p., 1983. Web.
Hjelmeland, O, & Larrondo, L. Experimental investigation of the effects of temperature, pressure, and crude oil composition on interfacial properties. United States.
Hjelmeland, O, and Larrondo, L. 1983. "Experimental investigation of the effects of temperature, pressure, and crude oil composition on interfacial properties". United States.
@article{osti_5362024,
title = {Experimental investigation of the effects of temperature, pressure, and crude oil composition on interfacial properties},
author = {Hjelmeland, O and Larrondo, L},
abstractNote = {The wettability of the fluid/rock system affects the distribution of fluids within a porous medium and this distribution in turn has a strong effect on displacement behaviour and oil recovery efficiency. The present work is an investigation on the influence of temperature, pressure, and oil composition on the wettability of a specific carbonate reservoir. Contact angle measurements were used to quantify wettabilities on calcium carbonate crystals. The experimental conditions included varying temperature and pressure using both dead crude oil and oil recombined to the original bubble point. In addition to quantification of wetting properties, interfacial tension between oil and water was measured, and formation of rigid films was observed. A complete reversal from a predominantly oil-wet system at lower temperatures to a predominantly water-wet system at higher temperatures was found. Pressure alone had little effect on the wettability of the system. Interfacial tension between crude oil and brine showed an increase with temperature under anaerobic conditions, whereas at aerobic conditions, interfacial tension decreased with temperature. The tendency to form rigid films at the crude oil/brine interface was found to be temperature dependent. The formation of rigid films was stronger at lower temperatures.},
doi = {},
url = {https://www.osti.gov/biblio/5362024}, journal = {Soc. Pet. Eng. AIME, Pap.; (United States)},
number = ,
volume = SPE 12124,
place = {United States},
year = {Sat Oct 01 00:00:00 EDT 1983},
month = {Sat Oct 01 00:00:00 EDT 1983}
}

Conference:
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