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圣菲(Santa Fe Shaft Drilling C-ompang)竖井钻进公司,即圣菲国际公司的子公司,声称占有世界上最大钻井设备,它可以钻直径20英尺,深度3000英尺的竖井。这台巨大的钻孔设备钻成一口竖井比用常规挖掘技术成井的时间要少一半,它意味着较快的竖井开拓,较低的费用消耗。另一好处是由于工人留在地表工作,所以操作安全。因为循环液的静压抵销了地下水的压力,所以向井孔渗入的地下水减少。在以下几个方面区别于石油钻井设备。一是它并不高大但很坚固。两个垂直立柱和一个横梁支持一个液压动力头,动力头带动钻管和组合式切削钻具旋转。组合切削钻具包括一定数
Santa Fe Shaft Drilling C-ompang Shaft Drilling Company, a subsidiary of Santa Fe International Inc., claims to have the largest drilling rig in the world and can drill shafts up to 20 feet in diameter and 3000 feet in depth. This huge drilling rig drills a shaft half as long as conventional wells, which means faster shaft opening and lower costs. Another benefit is the safe operation of workers as they stay on the surface. Groundwater infiltration into the well bore is reduced because the hydrostatic pressure of the circulating fluid cancels the pressure of the groundwater. In the following areas different from the oil drilling equipment. First, it is not tall but strong. Two vertical posts and one cross beam support a hydraulic powerhead that powers the drill pipe and the modular cutting tool to rotate. Combination cutting tools include a certain number