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Hole-in
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
To start drilling a borehole. also called collar, spud, spud-in.
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Dry running, английский
- To unknowingly or knowingly drill with a bit when the flow of the coolant and cuttings-removal fluid past the bit has been inadvertently or deliberately cut off. compare dry block, dry drilling.
- A condition in which moving surfaces have no liquid lubricant between them. dry running can lead to blistering, also known as the corona effect.
Grout off, английский
To seal off flow of water by grout injections.
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