For Holes 3½″ to 48″ (89 to 1219 mm)
Performance & Reliability for Geothermal Drilling
Numa boasts over three decades of experience with deep hole drilling in a wide range of applications, ground formations, and locations around the globe. We understand the demands of high temperature/hard rock geothermal drilling and are keenly aware of the challenges of deep hole cleaning dynamics. Our dedicated team of in-house engineers and on-site experts will work with you to tailor products to put you in the best position for success.
Geothermal Drilling
PRODUCTS
Small Conventional
3 ½” – 10″
89 to 254 mm
Large Conventional
9 ⅞” – 48″
251 to 1219 mm
Reverse Circulation
5 ¼” – 36″
133 to 914 mm
Overburden Bits
5 ⅛” – 48″
130 to 1219 mm
Utility Pole Rock Drills
11 ⅞” – 36″
302 to 914 mm
Hole Openers
6″ – 24″
152 to 610 mm
Casing Ring Bits
16″ – 48″
406 to 1219 mm
Bit Retainers
5 ½” – 36″
140 to 914 mm
Geothermal Drilling
Projects
Finland’s Deepest Hole on Record to 15,092 feet (4,600 meters)
Location: Otaniemi, Espoo Finland
Geothermal Drilling Project
Location: Kansas, Central USA
Geothermal Heat Well to 6,561 feet (2000 meters)
Location: Salo, Finland
Geothermal Surface Hole
Location: Jardboranir, Iceland
Heat Loop Drilling Project
Location: Pennsylvania, Eastern USAGeothermal Drilling Products to Meet Your NEeds
Some of the many benefits of partnering with Numa for geothermal drilling include:
- Drilled to depths of 15,000 feet (4572 meters).
- Expertise in heat loop and deep/hot hole drilling in different formations.
- Understanding of deep hole cleaning dynamics.
- Faster penetration rates than conventional rotary methods.
- Wide range and flexible configuration of drilling products.
Numa is the world’s leading drilling technology provider, with the highest value in products, performance and service in the entire drilling industry.
Numa’s unparalleled customer support was demonstrated on a recent deep hole geothermal project in Finland. Numa designed and manufactured highly specialized products and provided on-site experts for drilling in hard granite (up to 520 MPa hardness). The result was drilling to an astounding 15,092 feet (4600 meters) which is the deepest hole ever drilled in Finland!