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D定向系列 D Directional Series

●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 FormationIADC岩性 Lithology钻头选型 Bits Selection
软 SoftM221/S221
M222/S222
砂泥岩、页岩、泥灰岩
Sandstone,Shale,Marlstone
M/S519*D、M/S516*D
中 MediumM322/S322
M323/S323
灰岩、砂岩、砂砾岩
Limestone,Sandstone,Conglomerate
M/S516*D、/S519*D M/S619*D
硬 HardM422/S422
M433/S433
凝灰岩、花岗岩、粉砂岩、白云岩 Tuff,Granite,Siltstone,DolomiteM/S616*D、/S613*D M/S716*D、/S713*D


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