Air & Mud Rotary Drilling in California and Nevada
Deep, large diameter boreholes past 1,500 ft for environmental and geotechnical projects. Our own rigs and crews since 1982.
Send the site address and scope. We reply with the method, the rig and a price.
✓ C-57 licensed (CA) and C-23 (NV)
✓ Award winning safety
✓ Offices in Signal Hill, Fontana and Las Vegas
Rotary drilling works in unconsolidated and consolidated formations and reaches depths and diameters well past hollow stem auger, direct push and sonic. Our mud systems take boreholes beyond 1,500 ft bgs.
Air Rotary
Compressed air lifts the cuttings out of the hole. Fast in rock and consolidated ground, with no drilling fluid to manage on site.
Tricone
Down the hole hammer
Eccentric and casing advance
Mud Rotary
Drilling fluid holds the borehole open and carries the cuttings up. The choice for sands, gravels and deep or large diameter holes.
Tricone bits
Compact mud systems for tight urban sites
Linear shaker systems with desanding cones
The rigs that do this work
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GEFCO Speedstar 50K
Two in the fleet. Multipurpose mud and air rotary, plus casing hammer.
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GEFCO Speedstar 40K
Topdrive air/mud rotary with a 1,050 psi, 350 cfm compressor on board.
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Gus Pech Brat
A highly versatile, full size mud rotary rig.
Related services
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Environmental Drilling
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Geotechnical Drilling
Common questions
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It depends on the formation, the depth and how the cuttings have to be handled. Send us the boring logs or the site conditions and we will recommend the method and the rig.
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Our mud rotary systems take boreholes beyond 1,500 ft bgs. The right depth and diameter depend on the formation, and we size the rig to the job.
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Yes. Along with our full size rigs we run compact mud systems built for tight urban sites.
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California and Nevada, from our offices in Signal Hill, Fontana and Las Vegas.
Tell us about your project
Send the site address and what you need drilled. We reply with the method, the rig and a quote.