預先鉆探 的英文怎麼說

中文拼音 [xiānzhēntàn]
預先鉆探 英文
preboring
  • : Ⅰ副詞(預先; 事先) in advance; beforehand Ⅱ動詞(參與) take part in
  • : 名詞1 (時間或次序在前的) earlier; before; first; in advance 2 (祖先; 上代) elder generation; ...
  • : 鉆Ⅰ名詞1. (打眼用的工具) drill; auger 2. (指鉆石) diamond; jewel Ⅱ動詞(用尖物在另一物體上轉動) drill; bore
  • : Ⅰ動詞1 (試圖發現) try to find out; explore; sound 2 (看望) call on; visit; see 3 (向前伸出)...
  • 預先 : in advance; beforehand
  1. Abstract : tight trips often occur for hole undergauge during drilling in east sichuan oilfield. the paper analysis the causes of hole undergauge, proposes preventive and treatment measures which are to optimize design from geologic structure features, to use suitable fluid column pressure, to select different drilling fluid types, to adopt advanced drilling technology and perfect field technical management. therefore, good economic benefit will be obtained

    文摘:川東構造在作業中因井眼縮徑造成起下的阻卡時有發生,文中對造成井眼縮小的原因進行分析並劃分為五類因素,提出應在地質構造特徵方面優化設計,採用合適的液柱壓力,選擇不同的井液類型,使用進的井工藝和完善現場技術管理等措施進行防和處理,將取得重大的經濟效益。
  2. Since the inception of this project in 1998, three pre - pilot holes have been completed and the main hole has reached a depth of over 3500 m

    從98年開始,已經完成3個導孔的工作,主孔進深度已經超過3500米。
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