Related Experiment Video
Updated: Feb 20, 2026

Measurement of the Rheology of Crude Oil in Equilibrium with CO2 at Reservoir Conditions
Published on: June 6, 2017
Vapor Pressure Measurement System for Heavy Crude Oils
David Littlejohn1, Donald Lucas1
1a Lawrence Berkeley National Laboratory, Environmental Energy Technologies Division , University of California , Berkeley , California , USA.
Abstract:
We describe a new, simple apparatus that permits accurate measurement of reactive organic carbon vapor pressure from heavy crude oils when used with a gas chro-matograph. The apparatus is analogous to the Reid vapor pressure apparatus that is used for vapor pressure measurement of light hydrocarbons. This system overcomes many of the shortcomings experienced when the Reid method is applied to heavy crudes. We explain the operation of the system and present results from measurement of heavy crudes from Southern California. Measurements on oil samples collected from storage tanks agreed well with analysis of headspace gases in the tanks.
More Related Videos
08:37Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection
Published on: December 10, 2015
12:34Experimental Procedure for Laboratory Studies of In Situ Burning : Flammability and Burning Efficiency of Crude Oil
Published on: May 1, 2018
Related Concept Videos
Vapor Pressure
Vapor Pressure of Fluid
When a liquid is placed in a closed container with a small air space, and the space is evacuated, vapor molecules will...
Vapor Pressure Lowering
Measurement of Fluid Pressure
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
Volatilization
Distillation: Vapor–Liquid Equilibria