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Drilling Depth Guidelines |
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Dry Hole |
Fluid Filled |
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Drill Rod / Core Barrel |
Hole Depth Meters |
Hole Depth U.S. |
Hole Depth Meters |
Hole Depth U.S. |
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BRQ™ / BQ™ |
3024 |
9921 |
3462 |
11358 |
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BRQ™TK / BQ™TK |
3806 |
12488 |
4360 |
14306 |
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NRQ™ / NQ™ / NQ™2 |
2326 |
7632 |
2661 |
8730 |
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NRQ™ V-Wall™ |
2630 |
8627 |
2983 |
9788 |
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HRQ™ / HQ™ |
1578 |
5176 |
1806 |
5925 |
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HRQ™ V-Wall™ |
1987 |
6518 |
2246 |
7368 |
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PHD / PQ™ |
1043 |
3421 |
1190 |
3904 |
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PHD V-Wall™ |
1421 |
4663 |
1592 |
5223 |
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The figures in these tables have been calculated, based on field experiences, and may be reasonably expected. Ratings are based on a vertical, straight, clean down hole using a 18 258 kg (40,000 lb) hoist (single line pull). Actual drilling capacity will depend on in-hole tools, conditions, drilling techniques and equipment used. |
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*BQ capacity shown for comparison purposes only. It is not recommended drilling practice to drill over 2,000 m BQ depth. Always verify manufacturers rod depth ratings prior to use. |
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