LJ TCI BITS

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Product Application It is suitable for downhole motor and high speed applications. Recommended Drilling Parameters IADC WOB(kN/mm)(bit dia) RPM(r/min) Applicable Formations 437 447 0.35--0.9 240--70 Very soft with low compressive strength and high drillability,such as shale,clav,chalk,mudstone,gypsum,sandstone,soft limestone 517 527 0.35--1.0 220--60 Soft with of low compressive and high drillability,such as mudstone .gypsum,salt ,soft shale ,soft limestone.etc. 537 547 0.45--1.0 220--50 soft to medium with low compressive strength ,such as medium soft shale,medium soft limestone,medium soft sandstone and medium formation with harder and abrasiver interbeds .etc. 617 627 0.45--1.1 200--50 Medium hard with high compressive strength such as limestone hard shale ,sandstone and dolomite,etc. 637 0.5--1.1 180--40 Hard fomation with high compressive strength ,such as limestone,dolomite,sandstone,hard gypsum,and marble .etc. Note:The upper limits of WOB and RPM in above table should not be used simultancously. Crystal tel: 86-01057290815 mobilephone: 86-13269002360 skype: vitamin01230 QQ: 973987086

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Beijing Leeding Importing and Exporting Trading Co

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