.

LA TCI bits

Product Application
It can receive high WOB in the conventional drilling.It is suitable for various formations by matching cutting
structure with different tooth shape ,tooth density and tooth exposure height.
IADC WOB(kN/mm)(bit dia) RPM(r/min) Applicable Formations
417 437 447 0.35--0.9 150--70 Very soft formations with lowcompressive strength and highdrillablility ,such as clay, mudstone,chalk ,gypsum,salt, soft shale softlimestone,etc
517 527 0.35--1.0 140--60 Soft formations with low compressivestrength and high drillablility such asmudstone,gypsum,salt,soft shale,soft
limestone ,etc.
537 547 0.45--1.0 120--50 soft to medium formations with low compressive strength ,such as medium soft shale ,medium soft limestone,medium soft limestone,medium soft sandstone,medium formation with harder and more abrasive interbeds.etc
617 627 0.45--1.1 90--50 Medium hard formations with high compressive strength such as hard shale.limestone,sandstone,dolomite,etc
637 0.5--1.2 80--40 Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,etc

Note:the upper limits of WOB and RPM in above lable should bot be used simulancously

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