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lue lun qi ju fan xun huan zuan tan xin ji shu de ying yong
Pages: 59-31
Year: Issue:  3
Journal: Hydrogeology and Engineering Geology

Keyword:  反循环钻探技术的应用钻头寿命钻进效率气举双壁管采取率成本降低新技术推广应用;
Abstract: <正> 双壁管气举反循环钻探新技术具有钻进效率高、岩心(样)采取率高、判层准确、成井质量好、钻头寿命长、成本降低等优点。为了搞好其推广应用,特
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