Product name: 194mm new design 3 reamers concentric casing drilling system for civil engineering
Product category: Overburden symmetric casing drilling bits
Matched hammer: Hammer DHD360
Matched casing pipe OD: 194mm
New design 3 reamers concentric casing drilling system deliver an uncompromised combination of performance, efficiency, and reliability,
They are be used in all ground conditions and drilling applications as: Foundation construction, Piling construction, Water Well and Geothermal, Tunneling and Horizontal drilling.
new design 3 reamers concentric casing drilling system technical parameters:
Technical Parameters | |||
Model | Reaming Diameter(mm) | Casing Diameter(mm) | Equipped Hammer |
NMK5E108 | 115 | 93-99 | 90 |
NMK5E127 | 130 | 115-117 | 110 |
NMK5E146 | 155 | 130-134 | 110/340 |
NMK5E168 | 185 | 148-156 | 110/340 |
NMK5E178 | 195 | 158-166 | 150/340 |
NMK5E183 | 196 | 168-176 | 350/360 |
NMK5E193 | 206 | 176-182 | 360 |
NMK5E219 | 236 | 199-207 | 360 |
How to order:
Order Guide: Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
FAQ:
1. What is Symmetrix drilling?
Previously known in our industry as Concentrix, the updated Symmetrix system allows for the simultaneous casing and drilling of a hole. The system consists of three main components: pilot bit, ring bit (reamer) and casing shoe.
2. Why is overburden important?
In a petroleum system, the overburden rock overlies the source rock and contributes to its thermal maturation because of higher temperatures at greater depths. The age and thickness of the overburden rock determines the burial rate and thereby influences the heating rat.
3. How far can you directional bore?
What are the minimum and maximum lengths of crossing? Maximum lengths and hole diameters are determined by project specific geotechnical conditions however effective outside range for heavy rig horizontal directional drilling is 3,000 m
4. How does a casing advancer Work?
The Casing Advancer has been designed to allow drilling and casing to be carried out at the same time as one integral operation. This feature eliminates the need to drill the large diameter hole with a Rock Bit, pull the drill rod string and Rock Bit from the hole and then ream the casing back into the hole.
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