Patent ID: 7431105

Claim:
A method for geothermal heat loop installation, comprising: providing a rotary driven well drilling rig, the drilling rig comprising: an erectable mast; a head drive unit capable of linear movement along the mast for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secured to the head drive, the fluid being towed out a bottom end of the drill pipe and up to the surface along the outside of the drill pipe during a borehole drilling operation; and a deck unit pivotally mounted on a turret attached to a set of tracks, the deck unit supporting the mast, and wherein the turret includes an opening having a conduit passing therethrough, the conduit capable of attachment to a hose to provide a fluid source to the pumping unit; while the rig is in a first location, performing a first borehole drilling operation to form a first borehole at a second location, the first borehole formed to receive a geothermal heat loop; and performing a second borehole drilling operation to form a second borehole at a third location while the rig remains in the first location.