LAUSR

Abstract The work describes how a quasi-endless wheel flow loop can be used to study dispersion formation, development and stability at different pressures and temperatures. The so-called Wheel Flow Loop consists of a wheel-shaped closed pipe section that can be filled with gas, oil and water. By rotating the device in vertical orientation, a gravity driven flow is initiated. Several different flow conditions were simulated by varying the rotational speed. Onset of dispersion and the stability of emulsions formed was identified by interpreting torque profiles supported by visual observations. Two fluid systems, a realistic fluid system consisting of a light crude oil, synthetic natural gas and brine, and a model system consisting of a mineral oil, tap water and nitrogen as gas phase were investigated. Furthermore, the effect of temperature, pressure and water cut on dispersion properties was demonstrated. The sensitivity of the results indicated that the wheel qualifies as a characterization tool for dispersion properties. Furthermore, agreement in dispersion behaviour was found when straight pipe flow experiments were compared with the wheel matching the energy dissipation rate.