Asphaltenes addition triggers the formation of a two-layer wax-oil gel deposit.
The WAT, wax content of inner deposit layer is very high.
The CCN of inner deposit layer is relatively high (C26+).
The rheological property of inner deposit layer is greatly aggravated.
Inner deposit layer is rich of asphaltenes.
Increased asphlatenes facilitate diffusion of heavy n-alkanes into inner deposit layer.