8 1/2 Inches PDC Drill Bit M137 for Very Hard Rocks Drilling
keyword:
Classification:
Introduce
|
||||||||
|
||||||||
|
|||
|
RPM (r/min)
|
60~260
|
||
|
WOB(KN)
|
20~100
|
||
|
Flow Rate (lps)
|
22~35
|
||
| Application |
Medium-hard to hard formations with lowcompressive strength , such as hard shale,
limestone, sandstone, dolomite, hard gypsum,marble, etc. |
||
The M137 is a matrix body PDC bit with 7curved blade with back-reaming and spiral gauge protection. Optimized Hydraulie designand enhanced cleaing and cooling effects ofthe bits to prevent bit from balling.
Regular sizes of PDC cutters are 8mm, 13mm, 16mm, 19mm.
Regular blades quantities of PDC bits range from 3 to 9.
The smaller PDC cutters the harder rocks it can drill, the more blades quantity the harder it can drill. But penetration rate will be slower down after adopting smaller cutters and more blades, so choosing the best configuration of PDC bits is very important before starting projects.
Drillers should consider:
1> Matrix body or steel body.
2> Cutter sizes and blades quantity.
3> Double rows cutters or single row.
4> Spiral or normal gauge protection, gauge length, gauge protection materials.
5> Nozzles.
 |
Regular Models
Applications
 |
Related Catagories
 |
 |
 |
 |
| PDC Bits | Hole Opener | Roller Cones (Thirds) | Piling Roller Cones |
Next Page
Inquiry Now
Welcome to know our products
Get more product service information
CNTACT US
No.319-324, F1, Shoulashou Int'l. Autoparts Center,Shijing Road,Hejian City, Hebei Province, China