Su Yinao, Zhang Runxiang, Wang Jiajin. TWO SPECIAL POWER DRILLS FOR HORIZONTAL WELLS[J]. Oil Drilling & Production Technology, 1999, 21(4): 12-19. DOI: 10.3969/j.issn.1000-7393.1999.04.003
Citation:
Su Yinao, Zhang Runxiang, Wang Jiajin. TWO SPECIAL POWER DRILLS FOR HORIZONTAL WELLS[J]. Oil Drilling & Production Technology, 1999, 21(4): 12-19. DOI: 10.3969/j.issn.1000-7393.1999.04.003
Su Yinao, Zhang Runxiang, Wang Jiajin. TWO SPECIAL POWER DRILLS FOR HORIZONTAL WELLS[J]. Oil Drilling & Production Technology, 1999, 21(4): 12-19. DOI: 10.3969/j.issn.1000-7393.1999.04.003
Citation:
Su Yinao, Zhang Runxiang, Wang Jiajin. TWO SPECIAL POWER DRILLS FOR HORIZONTAL WELLS[J]. Oil Drilling & Production Technology, 1999, 21(4): 12-19. DOI: 10.3969/j.issn.1000-7393.1999.04.003
This paper mainly presents two special power drills for horizontal wells. They are Model BWSLZ165 screw drill with ground adjustable case and rotor screw drill with steady flow valve. The purposes of the former are to extend the ranges of the drill’s deflecting curvature, and increase its controllability, and reduce the storage of the drill. The purpose for the later is to improve the existing rotor screw drill for high efficiency.
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