Are you working on horizontal directional drilling projects where unknown soil conditions and steep bore slopes threaten hole stability and project timelines? CC Underground faced this challenge while installing a 24” steel liner beneath a busy six-lane highway and a southbound off-ramp on Georgian Highway 400 in Barrie, Ontario. The combination of silty clay seams, a steep 5° slope, and the need to control fluid returns made the project particularly complex.
CC Underground partnered with Di-Corp, using a specially designed drilling fluid system including Wyo-Ben Extra High Yield Bentonite™, Earth Pro ProPac D™, and Prima-Seal™ to stabilize the borehole and maintain fluid balance throughout drilling and pipe pullback.
If you’re tackling difficult HDD conditions, downloading this case study will show you:
- How engineered drilling fluids keep large-diameter bores stable in sloped, silty soil.
- Why fluid design and maintenance are critical to preventing frac-outs and road settling.
- How CC Underground completed the project on schedule with low pull force and hole integrity intact.
