Tci Tricone Drill Bit For Mining - China

IADC code Applicable Formation Main characteristics of the bit

Recommended parameters

Cutting structure Normal WOB kN/ mm ( bit dia.

) Rotary speed ( rpm)

117 Very soft with low compressive strength and high drillability, such as soft shale , clay and salt bed, etc Hardfaced gage and all tooth surfaces, , the gage fitted with compacts for enhanced gage protection , and a row of trimmers is added between gage row and heel row 0.30~0.9 - 300~80

127 / 137 Soft with low compressive strength and high drillability, such as sale , clay, salt bed and soft limestone, etc Hardfaced gage and all tooth surfaces, , the gage fitted with compacts for enhanced gage protection , and a row of trimmers is added between gage row and heel row 0.30~0.9 - 300~80

427 / 437 Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc.

Large dia.

Offset crested.

scoop compacts in inner row, wedge compacts in outer row , high compact exposure, inequable spaced compacts arrangement, and a row of trimmers is added between gage row and heel row 0.35~0.90 280~70

447 / 517 / 527 Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.

Large dia.

Offset crested.

scoop compacts in inner row, wedge compacts in outer row , high compact exposure, inequable spaced compacts arrangement, and a row of trimmers is added between gage row and heel row 0.35~1.05 240~50

537 / 547 Medium soft with low compressive strength and harder abrasive stringers, such as hard shale, mudstone , soft limestone and sandstone, etc Large radius scoop compacts in inner row, wedge compacts in outer row, inequable spaced compacts arrangement , and a row of trimmers is added between gage row and heel row 0.50~1.05 220~40

617 / 627 / 637 Medium hard with compressive strength and thick and hard stringers , such as limestone , hard shale, mudstone and sandstone, etc.

Conical compacts in inner row, spherical compacts in outer row, and a row of trimmers is added between gage row and heel row 0.50~1.10 220~40

737 Hard formation with high abrasiveness , such as hard limestone, dolomite, hard sandstone and chert, etc Large radius conical compacts in inner row , spherical compacts in outer row , and a row of trimmers is added between gage row and heel row.

0.50~1.20 200~40

Company Contact:

• Posted By: Hejian Deris Petroleum Drilling Equipment

• Phone: 8618831737902

• Address: china hebei, hejian , China

• Email:

• Website: https://hjdrs.en.alibaba.com

• Business Description: Company Competitive Power:
  
  1 - the most professional and experienced senior engineers in this field
  
  guarantee high quality products.
  
  2 - MANUFACTURER position ensures competitive price.
  
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  4 - Different sizes and dimensions are available
  
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