Abstract
The search for oil and gas has extended to deeper reservoirs, with higher pressures and temperatures. Recent discoveries have exceeded 6,000 meters, 120 MPa, and 463K. In order to obtain engineering data and do phase behavior research at these conditions, Chevron has constructed a system that operates up to 136 MPa and 473K. This system measures phase quantities, compositions, densities, viscosities, and interfacial tensions. The heart of the system is a sapphire tube that allows visual observation of the fluids being studied. This paper describes the highlights of the system, includes data on sapphire strength, and presents information on viscosities and interfacial tensions measured by oscillating crystal and photo correlation spectroscopy techniques.
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