Your present location:Home >> PRODUCT >> Steel Body PDC Drill Bit >> 8 1/2 FS1905I Steel Body PDC Bit

        Steel body PDC drill bit

         

        Soft to medium hard formation drilling
        Medium short parabolic crown profile and medium cutter density helps to obtain better ROP in soft to medium hard formation with lower compressive strength and thin hard layers.

         

        Gauge protection
        Gauge cutter improves the gage wear-resistance to prolong the service life of the bit.

         

        Unique backrack design
        Unique backrack design helps to reduce the bit torque and increase its aggressiveness.

         

         Product Specifications
         Bit Size (in.)  8 1/2  12 1/4  17 1/2
         IADC Code   S222  S222  S223
         Number of Blades  5  5  5
         Number of Nozzles  5  7  10
         Total Number of Cutters  31  52  78
         Primary Cutter Size(mm)  19  19  19
         Standard Gauge Length  2”(51mm)  3”(76mm)  4”(102mm)
         API Reg. Pin Connex.(in.)  4 1/2  6 5/8  7 5/8

         

         Recommended Operation Parameters
         Bit Size (in.)  8 1/2  12 1/2  17 1/2
         Hydraulic Flow Rate(L/s)  22~32  38~60  60~91
         Hydraulic Flow Rate(Gpm)  350~500  550~850  950~1450
         Rotation Speed(Rpm)  60~350  60~300  60~300
         WOB(KN)  30~100  30~100  50~160
         WOB(KLbs)  3~15  4~22  4~30
         Maximum WOB(KN)  67  98  134
         Maximum WOB(KLbs)  15  22  30

         

        * Other types and sizes could be designed and manufactured according to the specific requirments.

        2012 - 2013 © Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd - 冀ICP备12003250号  中企动力提供网站建设
        Tel:0086 10 6340 5086 / Fax:0086 10 6340 7657/ Add:No.168 Guang An Men Wai Street, Xuanwu District, Beijing, China