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新式钻杆的工业应用,使顶部冲击式液压钻孔逾越最大的障碍而进入大直径钻孔领域。现在,瑞典塞科罗克(Secoroc)公司已推出从76mm 到185mm 的六种直径的新式钻杆,配用直径达230mm 的钻头。迄今,它唯一的竞争对手是芬兰的科麦塔(Kometa)公司。在塞科罗克公司于今年年初把它的成果付诸实施之前,科麦塔公司就已独自研制出直径76、89和102mm 的三种新式钻杆。然而,这两家公司都在继续竞相制造和销售各自的产品。
The industrial application of the new drill pipe, the top of the impact hydraulic drilling beyond the biggest obstacle to enter the field of large diameter drilling. Now Secoroc, Sweden, has introduced six new diameter drill pipes from 76mm to 185mm with drill bits up to 230mm in diameter. To date, its only competitor is Finnish company Kometa. Before Secorock put its results into effect earlier this year, Commeta alone developed three new drill pipes of 76, 89 and 102 mm in diameter. However, both companies are continuing to compete in the manufacture and sale of their products.