常見例句

• The JDBC BIT type represents a single bit that can be 0 or 1.
  JDBC BIT類型表示可能是0或1的單個位。
• The deep formation has a high degree of hardness and abrasivity;the bit type selection is difficult and the ROP is low especially under the high density mud.
  深部井段地層的硬度高、研磨性強，鉆頭選型困難，特別是在高密度條件下機械鉆速低。
• It is based on a database of past PDC bits.In the databased,it includes bit type,average shear stress of well which bit was used in,cost per unit length.
  該方法以一個建成的PDC鉆頭使用資料庫為基礎(chǔ) ,該數(shù)據(jù)庫包括鉆頭型號、所鉆井段地層的平均剪切強度、單位進尺鉆井成本等指標。
• It is proved that using this method can avoid the lack of calculating rock drillability using single method and it can provide better reference for bit type selection a...
  這樣求出的可鉆性級值將為鉆頭選型和地層分層提供更好的參考。
• Determining drillability of the rocks in a well bore is directly related to the selection of bit type and the forecast of penetration rate,but the existing microdrillability test for studying rock drillability has quite much troubles.
  對井剖面地層巖石可鉆性的確定直接影響到鉆頭選型和鉆速預(yù)測，然而，現(xiàn)有的研究巖石可鉆性的微可鉆實驗存在較多問題。
• The classification of the drillability of formations drilled in Henan Oil Field is discussed.The correlation between the formation drillability grade and bit type has been basically established.
  文章討論了河南油田地層可鉆性定級方法及結(jié)果;按資料建立了級別-類型關(guān)系;提取了地層可鉆性梯度信息。
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