The pipe string torque remained low enough during the drilling activity that the on-site steel casing was not needed. However, a couple of the days were described as long. The jetted nine-inch pilot hole was completed in only four single-shift days. The silt, sand and clay soil conditions encountered along the drill path were ideal for a crossing planned for over 6,500 ft. Once at the project site, crews were able to complete rigging-up in two days and start work on the pilot hole. The rig was a Laney built 800,000-lb rack and pinion horizontal directional drilling rig. LDD Rig 14 was mobilized to the first crossing at the Rio Grande site. Trucking the drilling equipment overland took an additional 15 days. Three weeks later the cargo was cleared through local customs in the port of Arica, Chili.
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