2021-07-30
Casing Shoe Is Used On The Leading Edge Of a Casing Tube String To Advance It Through The Overburden Layer And Into The Bedrock By Means Of Rotational Drilling. Depending On The Range Of Application, The Cutting Media On The Core Bit May Take The Form Of Synthetic Diamond, Tungsten-Carbide Particles Or Tungsten-Carbide Elements.
| Casing shoes | |||||
| Specification | Outer diameter | Inner diameter | Note | ||
| Imperial | Metric | Imperial | Metric |
| |
| AW | 2.345 | 59.56 | 1.900 | 48.26 | HD |
| BW | 2.965 | 75.31 | 2.370 | 60.20 | HD |
| NW | 3.615 | 91.82 | 2.992 | 76.00 | HD |
| HW(CDDA) | 4.625 | 117.48 | 3.925 | 99.70 | HD |
| HW(DCDMA) | 4.625 | 117.48 | 3.975 | 100.97 | HD |
| HWT(CDDA) | 4.625 | 117.48 | 3.925 | 99.70 | HD |
| HWT(DCDMA) | 4.625 | 117.48 | 3.975 | 100.97 | HD |
| PW | 5.653 | 143.58 | 4.855 | 123.30 | HD |
| 56mm | 2.205 | 56.00 | 1.850 | 47.00 | HD |
| 76mm | 2.992 | 76.00 | 2.638 | 67.00 | HD |
| 86mm | 3.386 | 86.00 | 3.031 | 77.00 | HD |
| 101mm | 3.976 | 101.00 | 3.445 | 87.50 | HD |
| 131mm | 5.157 | 131.00 | 4.646 | 118.00 | HD |
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