The ROP PVT apparatus for gas condensates has two PVT cells: the primary cell of 500 cm3 and the secondary cell of 50 cm3. Both cells are equipped with mechanic pistons to vary the cell volumes.
Mercury free windowed cell for conventional PVT analysis of gas condensates and black oils. The piston movement in the two cells are computer controlled so as to realize a series of operations such as constant pressure, constant flow rate, and sychronization.
Both cells have sapphire windows allowing observation of phase transition inside the cells. The apparatus is also equipped with a gas meter for accurate gas-oil-ratio measurement or recombination.
It is also possible to attach on-line meters to measure high-pressure density and viscosity. The apparatus can be operated up to 150 °C and 700 bar. The large volume of primary cell makes it ideal for PVT study of gas condensate or gas.
Publications
S. Brunsgaard Hansen, R. W. Berg and E. H. Stenby, "High-Pressure Measuring Cell for Raman Spectroscopic Studies of Natural Gas" (Appl. Spectrosc., 55(1) (2001) 55-60)
S. Brunsgaard Hansen, R. W. Berg amd E. H. Stenby, "Raman Spectroscopic Studies of Methane-Ethane Mixtures as a Function of Pressure" (Appl. Spectrosc. 55(6) (2001) 745-749)
S. Brunsgaard, R. W. Berg and E. H. Stenby, "Detection of Occupancy Differences in Methane Gas Hydrates by Raman Spectroscopy" (Proceedings of the XVIIIth Int. Conference on Raman Spectroscopy, Budapest, Hungary, 25-30 August 2002, 157-158)
Erling H. Stenby, Robert Amin and Jørgen Jepsen, "A New Apparatus for Studies of Near Critical Hydrocarbon Fluids, Part I: PVT, DENSITY and VISCOSITY" (Fluid Phase Equilibria, 82 (1993) 149-156)
Jørgen Jepsen, Robert Amin and Erling Stenby, "Experimental Studies of the Phase Behavior of Near Critical Hydrocarbon Mixtures" (Presented at the IEA/EOR Workshop in Bath, UK, October 28-30, 1991)
Jørgen T. Jepsen, Erling H. Stenby and Aage Fredenslund, "Studies of Near-Critical Hydrocarbon Fluids – A New Apparatus" (Presented at the IEA/EOR Workshop at Stanford University, Palo Alto, 4-6 October 1989)