Product name : 350mm rock reamer
Product model : 350mm rock reamer
Product No. : rock reamer
Details:
Rock reamer-350mm
| Size | 350mm |
|
Cutter Type |
Metal-face sealed bearing cutters for 8 1/2" tricone bit |
| IADC | 637 |
| Roller Cutter Quantity | 4 |
| Overall Length(mm) | 1200 |
| Thread Connection | NC31(Customized) |
| Application |
Hard formations for high compressive strength,such as sandstone,hard shale,dolomite,hard gypsum, chert, granite,etc. |
Rock Reamer / Hole Opener Introduction
HDD Hole opener ranging from 12 to 66 that is divided into two type: MT cutter and TCI cutter, and is used in various compressive strength of the formations.
The product is used for the reaming of the oil, gas, petrochemical, sewage, power and fiber optic pipelines in the trenchless horizontal directional drilling and vertical drilling.
Directional crossing operation is widely used in trenchless project.
Hole opening is the most onerous task in this operation, but the key for hole opening operation is the hole opener choosing according to the operation equipment and formation.
Small torque force can be applied to hole opening with drilling machine.
Three steps in such operation are:
1 step: oriented hole operation.
2 step:hole opening.
3 step: pipe pulling.
