ETTL Drilling

ETTL has added another rig to its fleet, the Diedrich D-50 All-Terrain Trackmounted Drilling Rig. The D-50, among its many unique features, is remotely controlled. Its driver doesn't ride it. He walks! - controlling the D-50 with an easily operated remote control. The combination hollow stem auger / mud rotary drill rig is mounted on a heavily-reinforced-rubber track carrier that uses the latest in hydrostatic drive technology and is designed to readily traverse mud, snow, sand, uneven ground, wooded areas, and slopes as steep as 60% grade. The tracks are 18" wide, providing a ground contact pressure of about 3 psi, which gives the D-50 a unique capability to move through difficult muddy conditions. On board equipment includes a Moyno mud pump, shelby tube extruder and a 250 gal water tank. With a spindle speed of 700 rpm (approx), the D-50 can provide some 8000 ft-lbs of torque, permitting high-speed coring as well as the installing of 4" monitoring wells. The rig is equipped with an automatic 140-lb SPT sample hammer that will readily convert to a 170-lb sample hammer for TxDOT projects.

Pictures and information regarding the D-50 and our other rigs can be veiwed at the following links:

• http://www.ettlinc.com/Drill-Diedrich-Track.HTM
• http://www.ettlinc.com/DRILL.HTM

For more information and availabilty, contact James Aldredge. Please visit our website for pictures and information regarding all of our drilling rigs and services at www.ettlinc.com

James Aldredge
(800) 583-4421
fax (903) 595-6113
jaldredge@ettlinc.com