7 7/8 “ ( 200毫米) IADC632三牙轮牙轮钻头钻井类

议价
加入意向钻头直径(英寸) 7 7/8 “
位直径(mm) 200
IADC码632
API RGE 4 1/2
适用地层:
硬或坚硬研磨性地层具有高抗压强度,如石灰石,花岗岩,砂页岩,白云岩,燧石等推荐钻
抗压强度37000-44000Psi
WOB ( KN /毫米), 24 〜 45
(位直径)
转速r /毫米150 〜 60
N.W。 ( KG ) 32
G.W. ( KG ) 34
尺寸(mm ) 225 * 225 * 365
BIT Diameter (inch) 7 7/8'
BIT Diameter (mm) 200
IADC CODE 632
API RGE 4 1/2
Applicable Formations :
hard and hard abrasive formation with high compressive strength, such as limestone, granite, arenaceous shale, dolostone, firestone, etc. Recommended Drilling
compressive strength 37000-44000Psi
WOB (kn/ mm) 24~45
(bit dia )
Speed r/ mm 150~60
N.W. (KG) 32
G.W. (KG) 34
Size (mm) 225*225*365