At present, a variety of anti-paraffin wax technology What are the characteristics?

1) Thermal wax anti wax: Thermal wax anti wax is the use of heat will have precipitated wax crystals melt or increase the temperature of the crude oil to prevent precipitation of wax crystals. This is the most commonly used measure in the field. Including (1) hot wash and (2) electric hot wax. Hot wash operation is simple, time-saving and labor-saving, the disadvantage is that energy consumption, pollution of the formation, the most important is the impact of production, especially when the formation pressure lower wells hot wash, when the wash fluid filled oil ring, likely to cause The column pressure is greater than the formation pressure near the borehole wall. As a result, the wash fluid enters the formation, ie, the backwash of the hot wash medium. It takes several days for each type of pumping well to resume normal production after each heat wash. Electric thermal wax evenly, heat utilization, waxing operation is very simple. However, downhole construction is very complex, power consumption, high cost.

2) mechanical cleaning wax: the use of low cost, but only suitable for pumping wells.

3) chemical anti-wax: chemical anti-wax need continuous quantitative dosing to be effective. Due to the impact of natural environment, human factors and technical limitations, there are many problems in the well head for continuous quantitative dosing of liquid chemical agents, such as poor weatherability, easily damaged by theft, high operation cost and difficulty in management.

Strong anti-wax: a single effective distance is short, about 300-1000 meters. Easily affected by geomagnetic and temperature.