The T3W is set up to drill with augers, air rotary and drive casing, or air rotary with ODEX and is operated by a three man crew. Air rotary drilling is ideal for extremely drifficult subsurface conditions such as large cobbles, boulders, and landslide debris where traditional mud rotary or hollow stem auger drilling is not feasible Drilling deeper holes in unconsolidated formations is accomplished with the drill and drive method. The casing is advanced by an Aardvark hammer which swings out for ease of sampling and well installation. Odex underreamer systems are used when drill and drive is not possible due to large boulders or bedrock. Back to Top of Page Other Services Offshore - Cascade personnel have successfully completed marine sediment sampling and geotechnical projects as well as sampling and installing monitor wells in refinery water containment ponds.
Cascade personnel have extensive experience in performing geophysical logs.
Due to the limited demand and highly specialized equipment, Cascade uses subcontractors for the actual logging. Health and Safety trained equipment operators can be provided for backhoe or bulldozer work related to drilling service. Pneumatic packers can be provided to isolate zones. Cascade owns tracked and four wheel drive equipment for off road projects. Selected Projects Completed During the Last Five Years Cascade Drilling Inc. has performed hundreds of projects for foundation and soil investigations.