Horizontal directional drilling (HDD) as it relates to utility construction usually is dated from the late 1980s when the first compact drill units became commercially available.
Walkover and wireline locators from Digital Control Inc., Radiodetection/SPX Corp., Ditch Witch, Underground Tools Inc., Sharewell, INROCK and Horizontal Technology.
Sharewell LP has introduced a new internal shock-absorbing tool that permits the use of an air hammer with a wireline steering tool for horizontal directional drilling projects.
At one time or another, rock is a challenge to most contractors who do horizontal directional drilling (HDD). The degree of difficulty and the efficiency with which rock is penetrated involves many factors, including the size of the drill unit, method of drilling, downhole tools and the experience and capability of drilling crews.
Rock construction equipment from Vermeer, Melfred Borzall, INROCK, American Augers, Sharewell, Kennametal, Caterpillar, Ditch Witch, Ballantine, Underground Tools Inc., Bor-It Mfg., Doosan, Kenco and Barbco.
For horizontal directional drilling, the first “D” in the acronym HDD is the key to the success of this versatile trenchless technology -- without the directional capability, HDD could never have achieved the impact in utility construction that it has over the last 20-plus years.
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