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The design, calibration, and use of a PRL high pressure capillary viscometer for the range of 0 to 10,000 psig is presented. The effects of drainage, kinetic energy correction, alignment, surface tension, bulk modulus of the glass capillary, density of the pressurizing gas, and solubility at the gas-liquid interface are discussed. Internal repeatability, as well as correlation with the ASME pressure-viscosity project falling ball viscometer, is shown. Viscosity-pressure data for several fluids and the effect of dissolved gas on the pressure-viscosity properties are demonstrated.
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Klaus et al. (1966) studied this question.
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