Analysis and Discussion on Pipe-holding by Diameter-reducing in Trenchless Borehole

LI Xiao-fen; WU Xiao-ming; WANG Hai; XIANG Tian-chang

doi:10.3969/j.issn.1672-7428.2008.02.021

2008 No. 2

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LI Xiao-fen, WU Xiao-ming, WANG Hai, XIANG Tian-chang. Analysis and Discussion on Pipe-holding by Diameter-reducing in Trenchless Borehole[J]. DRILLING ENGINEERING, 2008, (2): 63-65. doi: 10.3969/j.issn.1672-7428.2008.02.021

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LI Xiao-fen, WU Xiao-ming, WANG Hai, XIANG Tian-chang. Analysis and Discussion on Pipe-holding by Diameter-reducing in Trenchless Borehole[J]. DRILLING ENGINEERING, 2008, (2): 63-65. doi: 10.3969/j.issn.1672-7428.2008.02.021