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Symmetric Overburden Casing System

Symmetric Overburden Casing System

Symmetric is a system comprised of an ingeniously simple concentric method of drilling through overburden with casing. Symmetric can drill straight holes at any angle (including horizontal) and to depths beyond 100 meters. Working together as one efficient drill bit, the components are made up of: the disruption of the surronding of the drill hole.

casing system 01.jpg

Casing Tube OD(mm)Casing Tube ID(mm)Reamed Dia(mm)Casing Shoe ID(mm)Polit bit Dia(mm)Hammer Type
10893-991188677DHD3.5/QL30
114102-1041279182DHD3.5/QL30
127115-11713610192DHD3.5/QL30
140124-128152117105DHD340/SD4/QL40/M40
146130-134154117105DHD340/SD4/QL40/M40
168148-156185140125DHD350/SD5/QL50/M50
178158-166195150140DHD350/SD5/QL50/M50
183163-171193154144DHD350/SD5/QL50/M50
194174-182211166150DHD360/SD6/QL60/M60
219199-207237193165DHD360/SD6/QL60/M60
245225-233260210190DHD380/SD8/QL80/M80
273253-257308241220DHD380/SD8/QL80/M80
325305-309348281205SD10/NUMA100
406382-388440364340SD10/NUMA100

 


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