bit-type

基本解释

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。