



●采用IDS等磨损设计模型;
●采用C1、P1/P2、G1冠型和分段保径设计技术,提高钻头导向性;
●采用低扭设计技术、微螺旋保径设计技术,不平衡力在绿色标准范围内,提高工具面稳定性;
●肩部、规径采用双冠型设计,提高钻头侧切能力;
●采用T3、T4高性能复合片,提高综合性能
·Adopting IDS equal wear design models;
·UsingC1,P1/P2,G1 crown types and segmented gauge retention design technology to improve drill bit guidance;
·Employing low torque design technology and micro-spiral gauge retention design technology to ensure balance force within the green standard and enhance tool face stability;
·Adopting dual crown design for shoulder and gauge to improve drill bit lateral cutting capability;
·Utilizing T3,T4 high-performance cutters to enhanceoverall performance.
尺寸范围Size Range:3V”~12Y”
| 地层 Formation | IADC | 岩性 Lithology | 钻头选型 Bits Selection | 
| 软 Soft | M221/S221 M222/S222  | 砂泥岩、页岩、泥灰岩 Sandstone,Shale,Marlstone  | M/S519*D、M/S516*D | 
| 中 Medium | M322/S322 M323/S323  | 灰岩、砂岩、砂砾岩 Limestone,Sandstone,Conglomerate  | M/S516*D、/S519*D M/S619*D | 
| 硬 Hard | M422/S422 M433/S433  | 凝灰岩、花岗岩、粉砂岩、白云岩 Tuff,Granite,Siltstone,Dolomite | M/S616*D、/S613*D M/S716*D、/S713*D | 
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