Single bend PDM drill - assembly on well straightening shows strong ability in big deviation angle.
单弯螺杆钻具组合在井斜角较大时显示出了强的纠斜能力.
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The annular swarf carrying velocity reduced with the increase of hole deviation angle and swarf size.
铣屑的环空返出率随着井眼倾角、铣屑尺寸的增大呈下降趋势.
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