stepped drag bits
group nameDownhole Tools
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Min Order1 piece
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update timeMon, 08 Apr 2013 00:26:40 GMT
Paramtents
Processing Type Casting
Machine Type Drilling Equipment
Type Drill Bit
Use Well Drilling
Certification API
Packging & Delivery
Min Order1 piece
Briefing
1.Type:chevron and step
2.wing:2,3,4 wings
Detailed
stepped drag bits:
1.Type:chevron and step
2.wing:2,3,4 wings
stepped drag bits
Size:4 1/2",5",5 1/2",5 3/4",6 5/8",7"
connection:NC26 3 3/8TBG,NC31 2 7/8TBG,NC38 3 1/2 TBG
Drag Bit is a common tool which used to rework operation, for drilling cement plug and sinker drilling sand bridge, salt bridge, scraping off the dirt of casing wall and hard wax and some mineral crystallization. Still can scraping well hole, making the wall bright and clean, it may used to drilling ahead in bushing and side track (Can destroy the keyway is formed when side track) or drilling and rubbing the mat of perforating shell, etc.
Casing Size | O.D. | OAL | Connection |
4-1/2 | 92~95(3-5/8)~3-3/4) | 300(11-13/16) | NC26 3-3/8TBG |
5 | 105~107(4-1/8~4-1/4) | 350(13-3/4) | NC31 2-7/8TBG |
5-1/2 | 114~118(4-1/2~4-5/8) | 350(13-3/4) | NC31 2-7/8TBG |
5-3/4 | 119~118(4--11/16~5-3/64) | 350(13-3/4) | NC31 2-7/8TBG |
6-5/8 | 136~148(5-11/32~5-13/16) | 380(14-31/32) | NC31 2-7/8TBG |
7 | 146~158(5-3/4`6-7/32) | 400(15-3/4) | NC38 3-12TBG |
