Structure and Mobility of Components of Petroleum Disperse Systems

摘要

The notion of petroleum disperse systems (PDSs) is widely used in petroleum production, transport, and refining. The composition and structure of a PDS are known to affect the dynamic properties of oils [1-4]. It is common practice to study PDS mobility, which is the reciprocal value of viscosity, as a function of component concentrations in petroleum. There are no quantitative correlations between the dynamic properties and structure of components of a PDS. To fill in this gap, we studied the structure of these components and ascertained the effect of their structure on the interactions between neighboring structural units of a PDS in Devonian oils (table, samples 1-6; μx = 14.2-44.0 cSt) and higher viscosity Carboniferous oils (table, samples 7-12;μ = 49.3-91.9 cSt).