bit-type

常见例句

• The JDBC BIT type represents a single bit that can be 0 or 1.
  JDBC BIT类型表示可能是0或1的单个位。
• 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.
  深部井段地层的硬度高、研磨性强，钻头选型困难，特别是在高密度条件下机械钻速低。
• 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.
  该方法以一个建成的PDC钻头使用资料库为基础 ,该数据库包括钻头型号、所钻井段地层的平均剪切强度、单位进尺钻井成本等指标。
• 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...
  这样求出的可钻性级值将为钻头选型和地层分层提供更好的参考。
• 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.
  对井剖面地层岩石可钻性的确定直接影响到钻头选型和钻速预测，然而，现有的研究岩石可钻性的微可钻实验存在较多问题。
• 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.
  文章讨论了河南油田地层可钻性定级方法及结果;按资料建立了级别-类型关系;提取了地层可钻性梯度信息。
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