Excellent Wear Resistance Symmetric Casing System With Reamer-IV
Advantages of Symmetric Drilling
1. Sound drilling straightness and fast drilling speed.Theoretically, symmetric drilling makes sure the hole in all formations such as gravel bed, sand bed and pebble bed etc is considerably straight, the drilling speed fast and the drilling torque relatively small.
2.The torque necessary for symmetric drilling is much less than that for eccentric drilling.A smooth and steady drilling may be achieved using ring bit on all conditions and create big hole even if a small drilling rig is used
3. Unlocking-relocking can be relatively easily achieved.Unlocking the system is sometimes required during drilling process. Relocking is easy since there are no eccentric components that must be opened or closed.
4. Drilling can be carried out at ant angle.Symmetric drilling can shape the hole at any angle.
5. Effective cuttings discharge,The airflow for cutting discharge purpose during the symmetric drilling will instantly ascend along the casing pipe after spurting out from the pilot bit. Hence, the negligible damage on the wall of hole can guarantee effective cutting discharge
6. Easy-to-operate and system security. Drilling workers are relieved of the need to maintain their continuous and constant attention on drilling process since symmetric drilling can carry on smoothly7. Economical and cost-effective.The structure and principle of operation of symmetric drilling system can guarantee considerable reduction in downtime, fewer consumable and lower operation.
Symmetric Casing System With Reamer-IV ( Pilot bit, Reamer, Guide Device and Locking Kit )
Technical parameter table of standard symmetric casing system with reamer for DTH hammer.
| Product code | OD(A) casing | Wall thickness (B) | Ring bit Reamed Dia (C) | Inner dia.of Ring bit(D) | Max dia. of Pilot bit | Hammer | Drill pipe |
| 140-HD45-115-R-DRL | 139.7 | 5 | 160 | 116.5 | 115 | DHD340A QL40 | 76 |
| 152-HD45-124-R-DRL | 152.4 | 5.5 | 170 | 126 | 124 | DHD340A QL40 | 76 |
| 168-HD55-140-R-DRL | 168.3 | 5.5 | 190 | 142 | 140 | DHD350R QL50 | 76/89 |
| 178-HD55-152-R-DRL | 177.8 | 7 | 200 | 153.5 | 152 | DHD350R QL50 | 76/89 |
| 194-HD65-165-R-DRL | 193.7 | 5.5 | 220 | 167 | 165 | DHD360 QL60 | 89/114 |
| 219-HD65-190-R-DRL | 219.1 | 6.5 | 246 | 190.5 | 188 | DHD360 QL60 | 89/114 |
| 273-HD85-240-R-DRL | 273 | 8 | 303 | 240 | 238 | DHD380 QL80 | 114 |
| 324-SD10-280-R-DRL | 323.9 | 10 | 350 | 282 | 280 | NUMA100 SD10 | 127 |
Application
It is suitable for drilling water wells, geothermal wells, small holes grouting,mirco-pile etc.
About US
KSQ Technologies (Beijing) Co. Ltd. is a diversified enterprise based in Beijing, China, offering a portfolio of products that help contribute to a better bottom line and increase workplace safety for the construction and mining industries.
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations. Our operations are based on the unique expertise of our people and knowledge with customer processes.
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115~280mm Symmetric Casing System With Reamer In gravel information Images
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