Gold Member Since 2014
Audited Supplier
Hejian Hengji Bit Manufacture Co., Ltd.

Drag Bit, Drill Bits, Diamond Core Bit manufacturer / supplier in China, offering Newest 3 Blades Drag Drill Bit for Drilling, TCI Tricone Rock Roller Bit/Oil Drill Bit, Tricone Water Well Drilling Bits, 8.5 Inch Rotery Bits, Oil and Gas Reamer, Used Tricone Bit for Sale and so on.

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Supplier Homepage Product Drill Bit Newest 3 Blades Drag Drill Bit for Drilling

Newest 3 Blades Drag Drill Bit for Drilling

FOB Price: US $100-500 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100-500/ Piece
Get Latest Price
Production Capacity: 1000PCS/Month
Transport Package: Wooden Case
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: 3 blades
  • Material: Cobalt Steel Alloys
  • Certicicated: ISO9001:2008
  • Color: Blue or as Your Requirements
  • Guarantee: 3 Years
  • Specification: ISO, API
  • HS Code: 82071990
  • Type: Center Drill Bit
  • Usage: Well Drilling
  • Processing: Forging
  • Blades: 3
  • Trademark: ouyate
  • Origin: Hebei Hejian
Product Description
1. Short parabolic crown profile, medium cutter density.

2. Interchangeable screw nozzle.
3. Structured diamond/carbide interface. Cutter delays the onset of Fracturing and cutter wear.
4. Under-cut shank maximizes junk slot area for better bit cleaning. Hign filt nozzles for
Improved hydraulics and Rop.
5. Can be used on rotary or down hole motor.
6. Surfable for soft to medium formation.

FAQ:1,How to order the product?
Send the inquiry with detail item description or model number.If  there is no packing demand we take it as sea-way packing.
2,About lead time ?
The lead time depend on the quantity of the order. the more,the better,cause large batch is reduce the time and the cost.
3,Can I expect good quality product?
Yes,all our activities are accredited to ISO9001:2008,both in products and services.
Specification:
According to the stratigraphic lithologic data, hydraulic and drilling parameters, choose  the type of drill bit.According to the hydraulic parameters, choose corresponding nozzle .nozzle hole size difference should not be too large, so as to avoid erosion channel.Before drill down, check the drill bit size, type size is consistent with the well, the nozzle is installed, connected with the drill bit screw thread specification and the joint compliance.The drill bit should be under well as the operation rules.bit and bottom contact, It must operate 30 minutes under light pressure and  slow turning (drilling pressure 5-15kN, speed 60r/min)  , then can be gradually increased to the normal drilling pressure.The bottom must be clean, various types of drill  do not reaming, slow decentralization, prohibited the pier drilling.Drilling operation  must be stable, if have abnormal phenomenon ,such as  bit bouncing ,should be timely analysis and take effective measures.The drill bit should be stored at a temperature of 10-30ºC  indoor, keep dry, ventilation, to prevent the sun and rain.
IADCWOB(KN/mm)RPM(r/min)Applicable Formations
 417/427 0.3-0.9 150-70very Soft formation with low compressive strength and high drillability,such as clay,soft mudstone,shale,salt,loose sands,etc.
 437/447 0.35-0.9150-70   very Soft formation with low compressive strength and high drillability,such as clay,soft mudstone,shale,salt,loose sands,etc.
 515/525 0.35-0.9180-60  very Soft formation with low compressive strength and high drillability,such as mudstone,salt,soft limestone, sands,etc.
517/5270.35-1.0140-50Soft formation with low compressive strength and high drillability,such as  mudstone,salt,soft limestone,sands,etc
535/5450.35-1.0150-60 medium soft with harder formation, more abrasive streaks,such as hard shale,mudstone,soft limestone,etc.
537/5470.4-1.0120-40medium soft with harder formation, more abrasive streaks,such as hard shale,mudstone,soft limestone,etc.
617/627 0.45-1.190-50  medium hard with higher compressive strength as well as thick and hard streaks,such as hard shale,sands,limestone,dolomite,etc.
6370.5-1.280-40 hard with higher compressive strength as well as thick and hard streaks,such as hard shale,sands,limestone,dolomite,etc.
 737 0.7-1.270-40  Hard with high abrasiveness such as hard limestone,dolomite,firm sands,etc
827/837 0.7-1.2 70-40 very hard with high abrasiveness,such as quartzite,quaruzite sand,chert,basalt,granite,etc.

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