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The deposition of inorganic salts (“scales”) such as calcium carbonate is an important flow assurance problem during crude oil production. The knowledge of the features of the precipitated solids, mainly the particle size and morphology, is crucial to understand the nature of the solids and to avoid or reduce the effect of their deposition. For instance, the use of additives is one of the most usual...
Wax deposition from a waxy crude oil is modelled in turbulent flow in a pipeline. Molecular diffusion in a thin boundary layer near the pipe wall is taken as the only mechanism responsible for deposition. The model takes into account the ablation, which is a flow-related phenomenon that limits the growth of the deposit. The effect of desaturation of the oil is analyzed as well. Two field cases are...
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