arrangement for inlet of fluid to a drill bit at one end of a strand of hollow bohrerelementen

• 1. 一种勃氏甜龙竹无性系竹枝苗快速成活栽培装置 [P] . 中国专利： CN213214566U . 2021-05-18
• 2. 一种防止无性系勃氏甜龙竹苗种植水土流失与倒伏的装置 [P] . 中国专利： CN213961084U . 2021-08-17
• 3. Arrangement for generating fast pulses of high pressure fluid jets - in which two parallel spiral grooves in rotating hollow shaft provide connection between inlet and outlet of fluid [P] . 德国专利： DE19528033A1 . 1997-02-06

  机译： 用于产生高压流体射流的快速脉冲的装置-其中旋转的空心轴中的两个平行螺旋槽提供了流体入口和出口之间的连接

• 4. Hollow percussion drill rod with seal for cleaning fluid inlet tube [P] . ES449325A1 . 1977-08-16

  机译： 带密封垫的空心敲击钻杆，用于清洗流体入口管

• 5. Hollow percussion drill rod with seal for cleaning fluid inlet tube [P] . 美国专利： US4059279A . 1977-11-22

  机译： 带密封垫的空心敲击钻杆，用于清洗流体入口管

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• 3. Preparation and Performance of the Hyperbranched Polyamine as an Effective Shale Inhibitor for Water-Based Drilling Fluid [J] . Yuan Liu, Xiao Luo, Jianbo Wang, 长江油气(英文版) . 2021,第004期
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• 7. Fluid flow and heat transfer of nanofluids in microchannel heat sink with V-type inlet/outlet arrangement [O] . Ayoub Abdollahi, H.A. Mohammed, Sh.M. Vanaki, 2017
• 8. An Industry/DOE Program to Develop and Benchmark Advanced Diamond Product Drill Bits and HP/HT Drilling Fluids to Significantly Improve Rates of Penetration [R] . 2007

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