FRASER VALLEY
Drilling Advice
Vancouver, Chilliwack, Hope, Abbotsford, Clearbrook, Mission, Surrey, Langley, Fort Langley, New Westminster
Burnaby, Coquitlam, Port Coquitlam, Maple Ridge, Pitt Meadows, Ladner, Tsawwassen, Whistler
Fraser Valley Drilling Advice
Advantages of Air Rotary Drilling
Fraser Valley Drilling Advice – Air rotary drilling also known as pneumatic percussion drilling, is a type of drilling in which a gas (usually compressed air or nitrogen) is used to cool down the bit, bring drill cuttings up and keep the borehole stable. The borehole is done by rotating a drill bit mounted at the bottom of a drill pipe. The air is supplied by a compressor, which moves the air to the swivel hose connected to the drill pipe and it needs to maintain an up hole velocity of approximately 3,000 feet per minute. The cuttings are removed from the area when the air going down the drill pipe leaves through small ports, pushing the cuttings to the surface.
This is an effective method for borehole drilling in both unconsolidated and consolidated strata and it is commonly used to perform deep drillings in rock formations. Because of the lack of fluids being introduced into the borehole, the samples are not at risk of being washed away or disturbed by the drilling fluid.
This method is more effective than other drilling techniques as the air effectively cleans the bottom of the borehole allowing for a permanent contact between the drill bit and the rock.
Air rotary drilling commonly uses a blade, Polycrystalline Diamond Composite or a tricone bit to penetrate the ground.
There are numerous applications for air rotary drilling in the Fraser Valley, such as water well development, monitoring well construction, open hole drilling and hard rock drilling, among others.
Fraser Valley Drilling Advice - The main advantages of the air rotary drilling method are:
- Penetration rates are relatively high
- Required casings are kept to a minimum
- Quick and easy rig mobilization
- Easy to install well screens as part of the casing installation
- High efficiency
- Relatively low cost
- Extended bit lifespan
- Low environmental impact
- Reduced cleaning process
However, rotary air drilling is not recommended when fluids such as water and oil are foreseen to encountered as the air density is too low to be able to move these fluids to the surface and they will fall into the bottom of the borehole causing problems with the drilling. Other disadvantages area the potential for fires and explosions due to the use of gases used in the process, the need for frequent replacement of the drilling bits when drilling in hard and abrasive sands and the risks of using this technique in contaminated formations, as the air can transport the contaminated material to the surface where the crew would be exposed.
Fraser Valley drilling Advice - Drilling requires the Right Drilling equipment and the experience to offer high quality dual rotary drilling... such as the following:
- HT Series Rigs - These drills were specifically designed and manufactured to meet our requirements for specialized drilling equipment for more remote drilling sites. These compact, yet powerful drills are very versatile. They are of modular design, they can be broken down and installed on various platforms, be it skids, truck or tracked carriers. They are capable of drilling vertical, incline or horizontal holes.
- HT-500 Series Drill Rig
- HT-700 Series Drill Rig
- HT-750 Series Drill Rig
- HT-1000 Top Drive Rotary Drilling Rig
- HT-2000 Top Drive Rotary Drilling Rig - Low Clearance Mast
- HT-2500 Top Drive Rotary Drilling Rig
- CSR-1000 Top Drive Rotary Drilling Rig - The CSR-1000 has a top drive rotary head that allows mud rotary, air rotary and coring operations to be conducted on the same drill chassis as the Becker. The CSR-1000 has the power and capacity to drill large diameter holes to greater depths than our other top drives due to the pullback power and large main winch capacity.
- RSD-100 Track Mounted Rotary Drilling Rig - The RSD-100 Track Mounted Rotary Drill is one of the larger track mounted top head drive rotary drill rigs. The drill is equipped with all the necessary pumps and tooling to perform all types of rotary drilling and can be fit with an auxiliary air compressor to provide a full range of air drilling techniques as well. The drill can also be configured to drill angle and horizontal holes.
- Schramm T-685WS Rotadrill - This unit is capable of drilling a 24” diameter hole to excess of 1,100 feet in 50°c temperature without any production delays.
- Simco 5000 Top Drive Rotary Drilling Rig - The Simco 5000 is one of our larger truck mounted top drive drill rigs. It can easily be equipped to meet almost any type of drilling project requirements. This drill has been custom modified from factory and has received upgrades in all areas to improve from its factory performance and meet our client’s special project demands.
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FRASER VALLEY
Drilling Cost Estimates
Vancouver, Chilliwack, Hope, Abbotsford, Clearbrook, Mission, Surrey, Langley, Fort Langley, New Westminster
Burnaby, Coquitlam, Port Coquitlam, Maple Ridge, Pitt Meadows, Ladner, Tsawwassen, Whistler
Fraser Valley Drilling Advice: We respond to all requests for the Fraser Valley Drilling Costs quickly, please submit as much information as possible about your project, it will greatly assist us with the details of the drilling costs for your project. Please feel free to contact us directly at 778-949-403
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Fraser Valley Drilling & Geotechnical Services
Vancouver, Richmond, Chilliwack, Hope, Abbotsford, Clearbrook, Mission, Surrey, Langley,
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