Plan a Trenchless Horizontal Directional Drilling ProjectSteps:Site Plan Survey site, get information on all underground utilities. Get information on rocks and roots that need to be avoided Shot Plan Using advance program to determine maximum depth, curvature of drill and objects to be avoided Equipment on site Move equipment on to the site "Daylight" the entrance and exit  The drill start and end may need to have a hole dug. We may also not want to arrvie at the surface but stop and maintence stack Mud Ready Drill mud is the lubrication that is used to keep the drill head cool Bit on The drill bit has an electronic transmitter that can be monitored from the surface Begin Drilling  Our drill rig can drill . . . and we can control the drill heads direction - essential steering it through the ground Directional drilling makes a horizontal borehole. Drilling begins with the boring of a small diameter pilot hole directed to and along a desired design profile using flexible drill rods. Sub-site electronics are used to monitor and track the bore location through a sensor located in the bore head below the surface. Directional changes are made to the drilling alignment and direction with a borehead, which is offset slightly from the drill rods. Through small adjustments by the operator, steering corrections throughout the bore can be made (for example, around tree roots, boulders, buried utilities or private property). A special drilling ‘mud’ technology, borrowed from the oil and gas industry, is introduced into the hole to prevent it from caving as well as providing a lubricant and flushing medium for cuttings. Following advancement of the pilot hole, a back reamer is attached and pulled back though the pilot hole in order to achieve the required diameter for the product pipe to be installed. Pipe casing may then be pulled through the bore into position and required connections made. Monitor Progress  Using the remote we monitor the drill depth and horizontal location We are through!  Connect conduit to pull back  connections made.
 |