The following video was shot in 2011. This particular well was plugged up with paraffin and would not pump. Approx. 5 gallons of Skye Chem WD-RTU was poured down a very narrow opening in the tubing. 45 minutes after the WD-RTU was poured down the tubing the well was turned back on.
As you will see in the video clip, the rods moved smoothly, the paraffin softened and pumped out. After I.5 hours the tubing was clean and the fluid was absent of paraffin. Oil resumed flowing again.
See the results: