The Directional Drilling Process


1. First, a small access pit is dug at the entrance and exit of the needed tunnel. 2. A drill pipe with a high-pressure fluid jet drill head attached is launched into the entrance pit.				Equibore's crew at a typical access pit.
		3. A state-of-the-art electromagnetic guidance system remotely controls alignment and depth of the drill head past obstacles. The drill head is guided toward the pre designated exit pit. 4. The drill head cuts through the subsurface, creating a tunnel behind it as it moves toward the exit pit.
An Equibore crewman holds a detection device which helps to identify depth and direction.
5. Once the drill head reaches the exit pit, the head is replaced with a larger reamer. The reamer has the pipe, conduit or cable attached. The reamer, cable and drill pipe are then pulled back through the newly created tunnel.			Special liquids keep the tunnels from collapsing during the process.
Spoils and fluid are removed from the pit.	6. A vacuum removes the drill fluid and spoils. 7. The pipe, conduit or cable is automatically put in place when the drill pipe is removed. 8. The access pits are filled in and the surface is easily returned to its former condition.