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Exploration diamond drilling differs from other geological drilling (such as Reverse Circulation (RC) Drilling [3]) in that a solid core is extracted from depth, for examination on the surface. The key technology of the diamond drill is the actual diamond bit itself. [4] It is composed of industrial diamonds set into a soft metallic matrix.
In 1970, Diamond M became a public company via an initial public offering. Twelve years after being acquired by Kaneb Services for $102 million, [3] the firm was sold for $48.5 million to Loews Corporation in 1989. [4] In 1992, Diamond M Corporation acquired ODECO from Murphy Oil for $358 million. [4] Shortly thereafter, Diamond M Corp. briefly ...
Element Six is a company specialised in providing synthetic diamond, cubic boron nitride and other superhard materials for industrial use. Part of the De Beers Group, Element Six employs over 1,900 people and its primary manufacturing sites are located in the UK, Ireland, Germany, South Africa, and the US.
The most common cutting element in use today is the polycrystalline diamond cutter (PDC), a sintered tungsten carbide cylinder with one flat surface coated with a synthetic diamond material. The cutters are arranged on the blades of the bit in a staggered pattern with the diamond coated cutter surface facing the direction of bit rotation to ...
In the 1960s and 1970s, Longyear began to diversify into other areas beyond traditional mineral exploration drilling. The company began using diamond bits for drilling and sawing concrete in the construction industry. In 1977, Longyear purchased rights to make concrete saws from the Drillistics Company. The firm's Salt Lake City plant began ...
In May 2013, the company sold Tender rigs T-15, T16 and the West Vencedor to Seadrill Partners LLC. [9] In June 2013, the company acquired a majority interest in Sevan Drilling. [10] In November 2014, the company suspended dividend payments as a result of a downturn in the industry. [11] In December 2017, the company filed bankruptcy. [12] [13 ...
Dormer Pramet is a global manufacturer and supplier of cutting tools for the engineering industry, including drilling, milling, threading and turning tools. Its origins date back to 1913, making it one of the world's oldest specialist manufacturers of engineers cutting tools.
Production of dead burnt magnesite and further value addition is under study through its subsidiary J K Mineral Development Corporation Limited. NMDC Ltd. has taken over a silica sand mining and beneficiation project from Uttar Pradesh State Mineral Development Corporation Ltd. The plant is designed to produce beneficiated high purity silica ...
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