Concentric Casing System with Blocks

Concentric Casing System with Blocks
Concentric Casing System with Blocks
Concentric Casing System with Blocks
Concentric Casing System with Blocks
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Overburden drilling system (Super Jaw Blocks)

Concentric Casing System with Blocks - Mastering Soft Formation Drilling

Our concentric casing system with blocks is specifically designed for drilling in soft and unstable formations, making it ideal for applications such as geothermal wells, water wells, small-to-medium-sized grouting holes, and micro-piling projects.

To ensure exceptional durability and wear resistance, we subject our blocks to deep heat treatment processing. Additionally, our precision-engineered installation holes, created using advanced slow wire cutting techniques, guarantee seamless and hassle-free block usage.

Specifications
Model Outer diameter (mm) Inner diameter (mm) Reamed diameter (mm) Number of block Inner diameter of casing shoe (mm) Hammer type Drill pipe (mm)
BOD168
168 156 185 2 142 5 inch hammer 76/89
BOD178
178 158 195 2 148 5 inch hammer 76/89
BOD183
183 163 200 2 152 5 inch hammer 76/89
BOD194
194 180 209 2 167 6 inch hammer 89/114
BOD219
219 205 237 3 192 6 inch hammer 89/114
BOD245
245 225 264 3 210 8 inch hammer 114
BOD273
273 259 308 3 242 8 inch hammer 114
BOD325
325 305 358 3 282 10 inch hammer 114
BOD406
406 382 426 4 360 12 inch hammer 127
Features
  • Tailored for Soft Formations: Our drilling system is designed to excel in soft formations, including those with high mud content and abundant floating rocks.
  • High-Performance Materials: We utilize specialized materials, such as 25Si2MnCrNi2MoV, for manufacturing our drilling tools. The blocks undergo surface treatment to achieve a hardness rating of HRC42-45, significantly extending their lifespan.
  • Simplified Operation: With our drilling tools, you can save time on tool replacement and boost overall work efficiency.
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