Tricone Bits Cutting Structure The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces.Tricone Bits Bearing StructureNon-scaled roller bearing .Drilling fluid can enter the bearing directly for cooling .Balls lock the cone,Which reduces the probability of cone-dropping to the minimum.Tricone Bits ApplicationIt is suitable for shallow well,water well and geothermal well. IADCWOB(kN/mm)(Bit dia)RPM(R/min)Applicable Fommations1110.3--0.75200---80Very soft formations with low compressive strength and high drillability .such as clay .mudstone ,chalk etc.1210.3--0.85200---80Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt,soft shale,soft limestone,etc.1310.3--0.95180---80Soft to medium soft formations with low compressive strength and high drillability, such as medium soft shale,hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds ,etc.2110.35--0.95180---80Medium formations with high compressive strength ,such as medium foft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds,etc.2410.35--0.95180---70Medium hard formations with high compressive strength ,such as abrasive shale ,limestone, sandstone, dolomite, hard gypsum marble etc.3210.4--1.0150---70Hard and semi-abrasive formations with high compressive strength ,such as abrasive shale ,limestone, sandstone, dolomite, hard gypsum ,marble etc.Note :The upper limits of WOB and RPM in above table should not be used simultaneouslyCrystal Web:http://www.bjleeding.com/tel: 86-01057290815mobilephone: 86-13269002360skype: bjleeding02QQ: 973987086Email:leedingj@163.com leedinglj@gmail.com
