Pneumatic Fracturing (PF) injections are applied to the subsurface in two ways:
– Using a cased borehole
– Within an open borehole
In rock formations and fine-grained unconsolidated formations, an open borehole is all that is required to effectively apply PF injections to the formation. Lowering our proprietary double or triple downhole packer systems, injections are applied to the subsurface in two to three foot intervals. In loosely consolidated geologies, PF injections are applied using a temporary driven casing. This casing can be driven into the formation via various drilling methods such as direct push or Sonic.
After the casing is advanced to the target depth, ARS lowers its injectors, which are then retracted, exposing the internal packer/nozzle assembly. The packers are inflated, thus sealing the borehole; the gas/material is then injected into the formation. When the injection is complete, the outer casing is retracted further upward with the packer nozzle system and positioned for the next fracturing event.
Under commercial production fracture projects, as many as 20 fracturing events per day can be accomplished using our new gas supply systems per crew.