Thj417 Tci Rock Bit/tricone Rock Bit?

Name: Thj417 Tci Rock Bit/tricone Rock Bit?
Brand: Hejianshi Tengda Petroleum Supplies Co.,Ltd
Rating: 4.4 (8 reviews)

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Basic Info

Model No.
Brand Name

Product description

Bit type	IADC Code	Applicable formation	Main characteristics of the bit	Recommended parameters
Bit type	IADC Code	Applicable formation	Cutting structure	Normal WOB KN/mm(bit dia.)	Rotary Speed(rpm)
THJ117	117	Very soft with low compressive strength and high drillability, such as shale,clay,salt bed etc.	Hardfaced gage and all tooth surfaces,and the gage fitted with compacts for enhanced gage protection.	0.35-0.90	300-80
THJ127	127	Soft with low compressive strength and high drillability.such as shale.clay salt bed and soft limestone,etc.	Hardfaced gage and all tooth surfaces,and the gage fitted with compacts for enhanced gage protection.	0.35-0.90	300-80
THJ137	137	Soft to medium soft with low compressive strength or soft with harder stringers such as hard shale,soft limestone and sandstone,etc. ,	Hardfaced gage and all tooth surfaces,and the gage fitted with compacts for enhanced gage protection.	0.35-0.90	300-80
THJ417	417	Long section of soft with low comressive strength and high drillability,such as shale,clay,sandstone, Soft with low compressive strength ,such as shale,clay,sandstone,and conglomerate ,etc.	Large radius,offset crested scoop compacts in inner row,wedge compacts in outer row ,high compact exposure and inequable spaced compacts arrangement.	0.35-0.90	280-70
THJ437	437	Very soft with low compressive strength and high drillability,such as shale,clay,sandstone,soft limestone,salt bed and gypsolyte, ,etc	Large radius,offset crested scoop compacts in inner row,wedge compacts in outer row ,high compact exposure and inequable spaced compacts arrangement..	0.35-0.90	280-60