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  • 商品名称: Steel Body Bi-center Bit
  • Model Number: FSB
  • Series: FSB
  • Cutting Material: PDC
  • Bearing Type: No bearing
  • Body Type: Steel body
  • Application: Well drilling, Mining, Exploration, HDD, Trenchless
  • Certification / Standard: API 7-1,ISO 9001:2008

Bi-center Steel Body PDC Bit (Polycrystalline Diamond Compact bit) Brief Description 

 

*Wellbore reaming operation
Special configuration and unique cutters layout make the bit applicable for reaming or drilling in plasticity formation where wellbore shrinkage happened.

 

*Bi-center structure
The bit comprises two parts, the front pilot cutters and the reaming cutters. The whole bit body is an integrated alloy forging processed by advanced precision numerical controlled processing equipment.

 

 Product Specifications
 Pass through(in.)  4 1/2  5 7/8  6  8 1/2  9 1/2  9 7/8  10 1/2  12 1/4
 Reaming size(in.)  5 3/4  6 5/8  7  9 5/8  10 5/8  10 3/4  12 1/4  13 1/2
 Cutter size(mm)   ⌀13  ⌀13  ⌀13  ⌀13  ⌀13  ⌀13  ⌀16  ⌀16
 Gage length(in.)  1 1/4  1 1/2  2  2 1/2  2 1/2  2 1/2  3  3
 API reg. pin
 Connection(in)
 2 7/8  3 1/2  3 1/2  4 1/2  6 5/8  6 5/8  6 5/8  6 5/8
 Hydraulic flow rate(L/s)  10~20  10~30  15~38  25~45  28~48  28~48  30~50  35~55
 Hydraulic flow rate(gpm)  160~320  160~320  240~600  390~710  440~760  440~760  480~790  550~870
 Rotation speed(rpm)   60~130  60~130  60~130  60~130  60~130  60~130  60~130  60~130
 WOB(KN)  9~35  25~50  25~60  30~120  35~130  35~130  40~150  45~200
 WOB(KLbs)  2~8  6~11  6~14  8~27  8~29  8~29  9~35  10~45

 

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