Size:8-1/2"          

鉆頭規范 Bit Specification                                           

切削齒規格 Cutter Size:                      Φ13mm,Φ16mm

噴嘴數量/類型 Nozzle Qty/Type:      Φ15x4+W12x3

保徑長度 Gauge Length:                    2＂

連接形式 Connection Type:               4-1/2＂API Reg

 推薦鉆井參數 Recommendations                               

轉速 Rotary Speed(rpm):            60～260

鉆壓 Weight on Bit(kn):              20～80

排量 Flow rate(lps):                     28～38

 特性及應用 Features and Application                        

1、中等拋物線五刀翼冠形和中密度布齒適合鉆進極軟到中軟地層；

The shape of medium parabolic curve and five-blade crown and the med dense teeth is suitable for very soft to med-soft formation.

2、斜保徑增強了鉆頭的穩定性，有利于防斜打直。

Inclined gauge protection design increases the stability of drill bit , prevent the inclined drilling and increase the ability of straight drilling.