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Chinese Journal of High Pressure Physics  > 2005  >  19(1): 66-70 .
FENG Yun-Chun, XU Yi-Ji, ZHAO Fu-Guo. Experimental Study on the Breaking of Rock by Ultra-High Pressure Water Jetting[J]. Chinese Journal of High Pressure Physics, 2005, 19(1): 66-70 . doi: 10.11858/gywlxb.2005.01.012
Citation: FENG Yun-Chun, XU Yi-Ji, ZHAO Fu-Guo. Experimental Study on the Breaking of Rock by Ultra-High Pressure Water Jetting[J]. Chinese Journal of High Pressure Physics, 2005, 19(1): 66-70 . doi: 10.11858/gywlxb.2005.01.012
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Experimental Study on the Breaking of Rock by Ultra-High Pressure Water Jetting

doi: 10.11858/gywlxb.2005.01.012

  • Oil & Gas Well Engineering Discipline, University of Petroleum, Dongying 257061, China

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  • Corresponding author: FENG Yun-Chun
  • Received Date: 17 Feb 2004
  • Rev Recd Date: 17 May 2004
  • Publish Date: 05 Mar 2005
    Abstract
  • Ultra-high pressure water jetting has a use for assisting mechanical breaking of rock in petroleum drilling. We found by experiment that the main factors affecting the breaking of rock are pressure, distance, speed and angle of jetting. With the pressure increasing, the breaking of rock is better and at 150 MPa, the efficiency of rock breaking is the highest. The most distance of jetting is 32.5 times diameter of nozzle when the pressure is 200 MPa, and the best jetting angle is 12.5.

     

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