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Manufacturing a Micro-model with Integrated Fibre Optic Pressure Sensors.
Transport in Porous Media ( IF 1.997 ) Pub Date : 2018-01-01 , DOI: 10.1007/s11242-018-1000-y
I M Zarikos,S M Hassanizadeh,L M van Oosterhout,W van Oordt

The measurement of fluid pressure inside pores is a major challenge in experimental studies of two-phase flow in porous media. In this paper, we describe the manufacturing procedure of a micro-model with integrated fibre optic pressure sensors. They have a circular measurement window with a diameter of 260 μ m , which enables the measurement of pressure at the pore scale. As a porous medium, we used a PDMS micro-model with known physical and surface properties. A given pore geometry was produced following a procedure we had developed earlier. We explain the technology behind fibre optic pressure sensors and the procedure for integrating these sensors into a micro-model and demonstrate their utility for the measurement of pore pressure under transient two-phase flow conditions. Finally, we present and analyse results of single and two-phase flow experiments performed in the micro-model and discuss the link between small-scale fast pressure changes with pore-scale events.
更新日期:2019-11-01

 

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