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Cited by 20 publications
(8 citation statements)
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“…To remove lost or stuck objects from the borehole, three different fishing drill heads are designed, including a full-diameter magnetic drill head, an annular magnetic drill head and a conical drill head (Talalay and others, 2015) (Fig. 15).…”
Section: Emergency Devicesmentioning
confidence: 99%
See 1 more Smart Citation
“…To remove lost or stuck objects from the borehole, three different fishing drill heads are designed, including a full-diameter magnetic drill head, an annular magnetic drill head and a conical drill head (Talalay and others, 2015) (Fig. 15).…”
Section: Emergency Devicesmentioning
confidence: 99%
“…In general, the cable-lowering speed should be equal to the free speed of drill in the fluid, which may vary due to variations in drilling fluid viscosity and borehole irregularities. If this is not ensured, the armor of the electromechanical cable slackens, birdcages and kinks develop, and the electrical core can be damaged (Talalay and others, 2015). The best way to avoid such problems is to carefully maintain cable tension when it is lowered into the borehole.…”
Section: Introductionmentioning
confidence: 99%
“…mast, winch and control system) are similar, but their missions are different. To take a different stance, in situations where difficulties may arise while drilling the deep warm ice of the Antarctic and Greenland ice sheets, thermal drills equipped with a pumping system to remove the meltwater and store it in a chamber within the drill can be considered as a reasonable alternative to deep electromechanical drills (Talalay and others, 2015). In these cases, the surface drilling equipment is also similar.…”
Section: New Approaches To the Old Challengesmentioning
confidence: 99%
“…This was then tested at Vostok station and later at the NEEM borehole. The results indicated that these staggered cutters can produce coarser chips that are less sticky and easier to transport from the borehole bottom and clean from the drill at the surface (Popp and others, 2014b; Talalay and others, 2015). A special short Teflon-coated drill was used in Dome Fuji to make the drill more effective in warm ice environments by avoiding ice adhesion; it achieved good results, although the duration of the drilling was not long (Motoyama, 2007).…”
Section: Introductionmentioning
confidence: 99%