High quality TCI 7 1/2\

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Product Overview

Description



Product Description


 






















































Product name



TCI 7 1/2"(190.5mm) tricone drill bit



Size



71/2 inch,190.5mm



type



 TCI tooth tricone bit



Bearing type



rubber sealed journal bearing



thread



41/2" API Reg pin



Gauge protection



 gauge protection



WOB



 0.35~1.05KN/mm



RPM



80~400r/min



Application formation



medium hard with high compressive strength and thick&hard stringers,such as hard hale,limestone,sandstone and dolomite,etc.



Weight



45kg



Industrial standard



 SY/T5164



MOQ


 1

 


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Table of classification of formation hardness and bit selection



Roller cone bit


IADC code



IADC code of diamond bit



Formation description



Rock type



Compressive strength(Mpa)



ROP(m/h)



111/124



M/S112~M/S223



Very soft:sticky soft formation with low compressive strength.



Clay


Siltstone


sandstone



 


<25



 


>20



116/137



M/S222~M/S323



Soft:soft formation with low compressive strength and high drillability.



Clay rock


Marl


Lignite


sandstone



 


25~50



 


10~20



 


417/527



 


M/S323~M/S433



 


Medium soft:soft to medium formation with low compressive strength and steak.



Clay rock


Marl


Lignite


Sandstone


Siltstone


Anhydrite


Tuff



 


50~75



 


5~15



517/537



M322~M443



Medium:medium to hard formation with high compressive strength and thin abrasive streak.



Mudstone


Dark rock


shale



75~100



2~6



537/617



M422~M444



 


Medium hard:hard and dense formation with high compressive strength and medium abrasiveness.



Dark rock


Hard shale


Anhydrite


Sandstone


Dolomite



100~200



1.5~3


















































































































IADC CODE SELECTION



IADC  



WOB



RPM



Application



(KN/mm)



(r/min)



111/114/115



0.3-0.75



200-80



very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk



116/117



0.35-0.8



150-80



very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk



121



0.3-0.85



200-80



soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone



124/125



180-60



131



0.3-0.95



180-80



soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds



136/137



0.35-1.0



120-60



211/241



0.3-0.95



180-80



medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds.



216/217



0.4-1.0



100-60



246/247



0.4-1.0



80-50



medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite



321



0.4-1.0



150-70



medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble



324



0.4-1.0



120-50



437/447/435



0.35-0.9



240-70



very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone



517/527/515



0.35-1.0



220-60



soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone



537/547/535



0.45-1.0



220-50



soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds



617/615



0.45-1.1



200-50



medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite



637/635



0.5-1.1



180-40



hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble



Note: Above limits of WOB and RRPM should not be used simultaneously






about us


Hebei Crossing Drill Bit Manufacture CO.,LTD is a professional supplier of drilling tools,including tricone bit,PDC tricone bit,Hole opener,single cone bit and so on.With years of study and refining of the introduced technology, we have succeeded in the field of product research with proprietary intellectual property rights.Also, we have made major breakthrough in the lines of analogue simulation in bottom-hole flow field,profile optimization,design of inserts arrangement and low torque,material and manufacturing techniques etc. As a result, our products own better characters of service and ranges of application.Mainly used for oil and gas,mining,geothermal,construction and so on.


The products of our company have achieved industrialization and serialization.Besides our company has always laying importance on the technical exchanges and cooperation with the counterparts both at home and abroad.Our products have been sold all over the world, including the United States, England,Canada,Brazil,Italy,Saudi Arabia,Korea, India, and Poland and so on.


Main products


tricone bit(mill tooth and tungsten carbide insert tricone bit)


PDC bit(matrix body and steel body PDC bit)


hole opener(HDD rock reamer,barrel reamer,fluted reamer,etc)


drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)


accessories(roller cone,bit breaker,ring gauge,nozzle ,etc)


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tricone bit usage


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packing and shipping


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FAQ


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Exhibitions


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contact


 




3.5818 s.