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Rotary shot drill
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- Any rotary drill used to drill blast-holes.
- Seismograph drill,
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Seismograph, английский
- An instrument that records seismic waves; that is, vibrations of the earth. used to record and measure earthquakes.
- Drill. a rotary drill, pump, and hinged mast mounted as an integral drilling unit on a truck body and used primarily to drill vertical shallow holes in which explosives are placed and detonated to produce shock waves from the rock strata, which then are measured by seismic recording instruments. also called jackknife rig, rotary-shot drill, seismic drill, shothole drill.
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Run in, английский
- To lower the assembled drill rods, core barrel, and bit, or other types of pipe, casing, or drill string into a borehole.
- To drill the first few inches slowly at the beginning of a core run or when collaring a borehole.
Rod pulls, английский
- The number of borehole round trips made in a unit of time.
- The number of lengths of drill rod (two or more standard 10-foot lengths coupled together and handled and stacked as unit lengths) needed to reach the bottom of the borehole.
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