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近来用于水平井钻井的钻头有了迅速的发展,许多水平井的钻速比几年前提高了2～3倍,这种趋势今后仍将继续。
Recently, the drill bit used for horizontal well drilling has developed rapidly, and the drilling rate of many horizontal wells has increased by 2 to 3 times than that of a few years ago. This trend will continue in the future.