bit-type

基本解釋

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。