cascadedrilling

AIR ROTARY DRILLING RIGS
USE: Highly efficient if your project requires boreholes through boulder, unconsolidated formations or in bedrock.
Cascade Drilling’s air strong rotary drilling rig are equipped to do air rotary casing hammer, air rotary underhammer, and mud rotary wireline coring.
Air rotary bits are cooled during cutting by injection of high-flow air, which also evacuates rock cuttings from the borehole and stabilizes the borehole while drilling. The high-flow air constantly cleans the bottom of the borehole, which allows for consistent contact between drill bit and bedrock. Foam can be added to the injected air to increase viscosity in boreholes where lifting the cuttings is difficult.
Our rigs' air compressors are double-filtered to remove residual oil. Sampling is accomplished with a 140 pound Mobil safety driver, which is lowered down the hole on a wireline. The sampler is driven by a free fall winch and retrieved, saving time over the drill rod method. The sampler may be attached to drill rods if necessary.
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 Electric Stacker and well installation. Cascade has 13", 12", 10", and 7" OD threaded casing in 5' and 10' lengths to allow for various sampling intervals. Odexunderreamer systems are used when drill and drive is not possible due to large boulders or bedrock.

Contact us:
Cascade Drilling Seattle
19404 Woodinville-Snohomish Road
Woodinville, WA 98072
(425) 485-8908 • (425) 485-4368
email: Cascade Drilling, L.P. - Washington

Website:
http://www.cascadedrilling.com/