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The development of a technique for high spatial and temporal resolution film thickness measurement in oil-water flow is presented. A capacitance measurement system is used to measure thin water films near to the wall pipe. The system consists of seven parts: a signal generator, analog multiplexers, a planar sensor, auto-balancing bridges, logarithmic amplifiers, an analog-digital converter and a control...
Dispersed oil–water flow was studied in a 12m long horizontal acrylic pipe, with 26mm of internal diameter, using mineral oil (828kg/m3 of density and 220cP of viscosity) and tap water. Experiments with a high-speed video camera were performed to obtain images of the flow near the pipe wall in highly dispersed oil–water flow. A visualization section was properly designed and installed in the pipeline...
This work presents a study of a new technique for non-intrusive measurement of liquid-liquid flow. The evaluated film thickness sensor has 64 × 16 measuring points and a measuring area of 128 × 32 mm. This sensor measures the electrical conductance and, through a calibration procedure, converts those signals in water film thickness. The experimental work was carried out in the Swiss Federal Institute...
In this work holdup is estimated through image processing and compared with the value calculated indirectly by the correlation presented by Rodriguez et al. in [1]. The tests were performed in the multiphase-flow test facilities of the Research Centre (CENPES) of PETROBRAS, Brazil. Flow images were obtained with a high-speed video camera at 1000 fps in a 2 7/8-inch and 300 meter deep pilot-scale well,...
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