Negotiable
The date of payment from buyers deliver within days
Hebei
Long-term effective
2017-09-17 19:00
57
Company Profile
Beijing Superior Drilling Equipment Co., Ltd.By certification [File Integrity]
Contact:Miss Lisa(Mr.)
Email:
Telephone:
Phone:
Area:Hebei
Address:Hebei
Bit type |
Normal WOB kN/mm (bit dia.) |
Rotary Speed (rpm) |
Cutting structure |
Applicable formation |
FA437 |
0.35~0.90 |
280~60 |
Large radius offset crested scoop compacts in inner row, wedge compacts in outer row, high compact exposure and inequable spaced compacts arrangement |
Very soft with low compressive strength and high drillability, such as shale, clay, sandstone, soft limestone, salt bed and gypsolyte, etc. |
FA537 |
0.50~1.05 |
220~40 |
Large radius offset crested scoop compacts in inner row, wedge compacts in outer row, high compact exposure and inequable spaced compacts arrangement |
Medium soft with low compressive strength and harder abrasive stringers, such as hard shale, hard gypsolyte, soft limestone, sandstone and dolomite with stringers, etc. |
FA617 |
0.50~1.05 |
220~40 |
Large radius scoop compacts in inner row, wedge compacts in outer row and inequable spaced compacts arrangement |
Medium hard with high compressive strength and thick & hard stringers, such as limestone, hard shale, mudstone and sandstone, etc. |
FA637 |
0.50~1.10 |
200~40 |
Conical compacts in inner row, spherical compacts in outer row |
Medium hard with high compressive strength and abrasiveness, such as limestone, dolomite and hard sandstone, etc. |
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