Asphaltene is a class of multi-nuclear aromatic compounds of crude oil extracted from the solubility difference between normal heptane and toluene. The deposition of this hydrocarbon compound decreases the flow by changing the thermodynamic conditions of the fluid as it passes through the reservoir, wells, wellhead facilities, transmission lines, and even in the refinery, and blocks the flow in acute cases. This problem has plagued oil-producing countries for many years. Since Iran is one of the oil producers facing the problem of asphaltene, it is necessary to study the Iranian oil samples as much as possible to avoid the irreparable costs of asphaltene deposition. In this research, experiments of the recombination, bubble point, viscosity and density and asphaltene content for sampled oil from the separator of one of the southern Iranian oil fields have been performed. Then, rheological experiments were performed to investigate the effect of asphaltene precipitation on flowing oil and dynamic light scattering experiments were performed to investigate the kinetics of asphaltene aggregation. Rheological data show that the onset of asphaltene precipitation can be determined by increasing normal heptane drop by drop to oil. Also, the change in the rate of viscosity-temperature variation in the 50% by volume solution of normal heptane indicates that the asphaltene precipitate dissolves with increasing temperature. Dynamic light scattering data for the collected oil sample show that the nano-solution of asphaltene in toluene occurred at a concentration between 25 and 50 mg / l. A coin model has been developed for how asphaltene aggregates. With this model, the aggregation number of clots formed in the asphaltene solution in toluene is obtained and the aggregation numbers have a logarithmic relationship with the initial energy given to the solutions through sonicate. Deconvoluting the dynamic light scattering beam of ultra-dilute asphaltene solutions in toluene (12.5 and