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High-pressure drop shape analysis system

The high-pressure drop shape analysis system (HP-DSA) enables the evaluation of interfacial properties such as interfacial tension, wetting, and volumetric expansion at elevated pressures and temperatures of up to 70 MPa and 200 °C, respectively. The system operates based on the axisymmetric drop shape analysis technique. Using a high-resolution camera, the software detects the contour of the actual drop, to which a theoretical drop profile is fitted. A set of differential equations is numerically solved by a profile optimization algorithm, and a relationship between the radius of curvature, the Bond number, and the interfacial tension (IFT) is obtained. Similar steps are followed to determine the contact angle (wetting). The HP-DSA has wide-ranging applications in the oil and gas industry and in material characterization.

References:

  • Ibeh S. and Jaeger P., 2023. Interfacial tension of triethylene glycol-water mixtures in carbon dioxide at elevated pressures. Journal of Petroleum Exploration and Production Technology, 13, 1379–1390. https://doi.org/10.1007/s13202-023-01615-4
  • Villablanca-Ahues, R., Nagl, R., Zeiner, T., Jaeger, P., 2023. Interfacial tension and phase equilibria for binary systems containing (CH4-CO2)+(n-dodecane; n-butanol; water). Fluid Phase Equilibria 570, 113783. https://doi.org/10.1016/j.fluid.2023.113783
  • Samara, H., Al-Eryani, M., Jaeger, P., 2022. The role of supercritical carbon dioxide in modifying the phase and interfacial properties of multiphase systems relevant to combined EOR-CCS. Fuel 323, 124271. https://doi.org/10.1016/j.fuel.2022.124271
  • Samara, H., Jaeger, P., 2022. Experimental determination of wetting behavior under non-atmospheric conditions relevant to reservoirs: a practical guide. SN Appl. Sci. 4, 85. https://doi.org/10.1007/s42452-022-04963-8