Jetting
A nitrogen based fluid is pumped through a high pressure nozzle to create a high velocity stream which is used to clean out the wellbore, and flush out the debris. Typically, frac sand, and drilling tailings can flow back, and obstruct the flow of hydrocarbons into the well. With the horizontal multi-stage wells, there are additional debris from where operators have to drill through the frac plugs when they complete fracking all the stages.