Digital densitometer consisting of a Hastelloy, high pressure, high-temperature cell covering the range of fluid densities encountered in a Petroleum reservoir, i.e. 0 to 3 g/cm3. Maximum operating temperature and pressure are 200°C and 20,000 psi, respectively. A fluid sample is first introduced into a tube, after which the latter is magnetically excited to vibrate at its natural frequency. The latter is a function of the body’s geometry, fixation, material and hence the internal fluid’s density. The device is calibrated at specific, constant pressure and temperature with two fluids of known density, to derive the linear relationship between the natural frequency and fluid density at that pressure and temperature. The density can therefore be deduced from the measured frequency. The apparatus is provided with a control station and thermostatic bath.
Model : Anton Paar DMA HPM
Temperature range : up to 200°C
Pressure range : up to 20,000 psi
Density range : 0 to 3 g/cm3
Accuracy : 10-3 g/cm3
Fittings : 1/8 ''
Wetted material : Hastelloy Accuracy : +/- 1 x 10 -3 g/cm3
Power supply: 220 VAC 50 Hz