Each drill pipe is hollow to facilitate the passing of drilling fluid. This part comes in different lengths and diameters depending on the size of the rig. Other names for drill pipes include drill string, drill rod, or drill stem. Another type of drill head is a three-piece drill bit. A duckbill bit also has a centre cavity used to house electronic parts. The most common design is a replaceable duckbill bit used in steering and cutting. Drill heads come in a variety of sizes and shapes. These are the different parts of a drilling machine responsible for its function: Remote units have the advantage of reduced weight which makes them suitable for use in residential installations. Self-contained drilling machines are generally larger and heavier. The power unit is permanently attached to a truck or trailer and is only skid-mounted to the unit. On the other hand, remote units do not have the power unit on board the machine. This type of machine is popular with directional drilling companies because you don’t have to spend too much time setting up the equipment. To further categorise drilling machines, there are self-contained units and remote units.Ī self-contained drilling machine has the drill pipe, rack, and power unit on board. Nevertheless, when choosing the right type of directional drilling machine, the rotational torque rating is more important than size. The size of a drilling machine depends on its pullback capability measured in pounds. Each directional drilling machine has three main functions: forward thrust, rotation, and pullback capacity. To lay down wires and cables through the drilled hole, the drill head is replaced with a back reamer or expander along with the wire, cable, or pipe, which is then pulled back through the same bore back to the drill starting point.ĭrilling machines come in different sizes. The drill then exits the ground upon completing the specified route. After reaching the desired depth of the bore, the hole is horizontally advanced until it reaches the intended destination point. The process begins by creating an angled pilot bore which is then levelled at a specific depth. The process of using directional drilling methods facilitate ease of installation while also minimising environmental disruption. The industries which rely on directional drilling use the technique to lay pipes and cables for water, electric, sewage, and telecommunications. For many years now, horizontal directional drilling has been the commonly used method for underground utility installation.
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