Paraffin Deposition Model of Wellbore for Condensate Gas Well

The condensate gas reservoir with high content of paraffin is a kind of special and complex gas reservoir. Its complexity shows up as that the condensate gas produces the phase change of condensation and paraffin precipitation as well as the interphase mass transfer phenomena under the pressure of paraffin precipitation point and dew point. Some wells need to cut the paraffin in a cycle of every 3 to 7 days, and difficulties are added to building the well due to blockage of paraffin in wellbore. A paraffin deposition model is established based on calculations of temperature, pressure, density field and velocity field of condensate gas well wellbore.