Industry continues to advance drill bit technology | Rc Dth Hammer

Sales of non Mincon-manufactured product jumped 37 per cent or €4.8 million year-on-year. This increase was driven by the opening of additional sales offices in Chile, Australia, Tanzania and Namibia.

It provides measures of the average density of the formation (i.e. rock & fluids combined). In most cases, the density log is interpreted to give information about the porosity, fluid type and fluid saturation.

When the bit hits water, fluid inside the rods changes density, alerting drill operators. Clean water is usually found between 90 to 150 feet below the surface, and the Village Drill can reach that depth in eight hours.

Efforts to rescue Julen Rosello from the 110-metre deep, 25cm diameter borehole have gripped Spain since the boy fell into the waterhole on Sunday.

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Feeding animals is the priority but it’s not easy and every farmers fears what lies ahead: empty forage stores over winter.

Transition preparation and training efforts are underway to shift to CIL production in early Q2-2019.

- Overall project completion stands at more than 98%, tracking approximately two months ahead of schedule.

The scientists sent pulses of laser light through an optical fibre, which was part of a 15 kilometer long cable deployed in 1994, within the telecommunication network on Reykjanes peninsula, SW Island, crossing a well-known geological fault zone in the rift between Eurasian and American tectonic plates. The light signal was analyzed and compared to data sets from a dense network of seismographs. The results amazed even experts: "Our measurements revealed structural features in the underground with unprecedented resolution and yielded signals equaling data points every four meters," says Philippe Jousset from the GFZ. He adds: "This is denser than any seismological network worldwide." After presenting preliminary ideas at several conferences since 2016 Philippe was told that the new method was a ‘game changer for seismology’. Although the method is not new in other applications (it is used for years in boreholes for reservoir monitoring), the team is the first worldwide that carried out such measurements along the surface of the ground for seismological objectives, and with such a long cable.

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AISC amounted to $719/oz, well below the guided $790-850/oz range, due to the above-mentioned opportunistic mining.

Climeworks perceives a large market for fuels, too. In a town near Zurich called Rapperswil-Jona, the firm has installed a collector in a small plant, run by the local technical university, to produce methane. In a room about the size of a shipping container, the Climeworks machine takes in CO₂ through an air duct and sends it through a maze of pipes to combine it with hydrogen, which is derived from water using solar power. When I visited, the plant was a few weeks away from being operational, but the methane coming out of the works could replace gasoline in the engine of just about any car, bus or truck outfitted to run on natural gas. At a larger plant in Italy, Climeworks recently joined a consortium of European countries to produce synthetic methane that will be used by a local trucking fleet. With different tweaks and refinements, the process could be adapted for diesel, gasoline, jet fuel — or it could be piped directly to local neighborhoods as fuel for home furnaces.