HDD Bore Path Assessment

Using 3D Geophysics

ARM assisted a confidential client with a preliminary assessment of a proposed horizontal directional drilling (HDD) bore pathway. The study area crossed a wide stream and multiple bedrock formations. The area also contained complicated folded and faulted geologic structure, which can increase the difficulty of successfully completing an HDD project.

Project Highlights

ARM completed a three-dimensional electrical resistivity (3D ER) survey to simultaneously collect data on both shorelines and beneath the stream.
The processed 3D ER data is plotted as both maps (plan view) and cross-sections (profile view), allowing ARM’s geoscientists to more accurately interpret the changes in bedrock lithology and structure.
Professional interpretations were then used to pinpoint areas of interest for further exploration prior to finalizing the HDD bore path.
ARM successfully reduced the cost of exploratory drilling by targeting specific areas of interest and reduced the risk of unforeseen environmental impacts during HDD installation.