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Keywords: workover rigClose
Article Type: Research Papers
J. Energy Resour. Technol. June 2007, 129(2): 96–101.
Published Online: October 7, 2006
...Zhang Lujun In this paper, an advanced energy-saving petroleum machinery, the hydraulic energy-recovering workover rig, is researched. The equipped power of this rig is only one third of an ordinary rig, and this rig can also recover and reuse the potential energy which is released...