Hardware & Tools
Description
Product Application
It can receive higher WOB and faster rotary speed than conventional roller bearing bits .It is suitable for high RPM applications.
Recommended Drilling Parameters
IADC WOB(kN/mm)(bit dia) RPM(r/min) Applicable Formations
435 445 0.35--0.95 150--60 Very soft formations with low compressive strength and high drillability,such as clay,mudstone,chalk ,etc.
515
525 0.3--0.8 200--80 Soft formations with low compressive strength and
high drillability,such as mudstone,gypsum ,salt,soft shale,soft limestone,etc.
535
545 0.35--0.9 180--80 Soft 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.
615
625 0.35--1.0 180--80 Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,
dolomite,etc
635
0.4--1.1 150--60 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 table should not be used simultancously.
Crystal
Web:http://www.bjleeding.com/
tel: 86-01057290815
mobilephone: 86-13269002360
skype: bjleeding02
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leedinglj@gmail.com
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Beijing Leeding Importing and Exporting Trading Co., Ltd
Drilling bits, Tricone bits, PDC bits, drill for oil, about oil drilling, oil well drill
Address: Room 0221, building 11, No.1 yard, Wu li qiao second street, Chaoyang District, Beijing, China ,
Beijing, Beijing
China, 100024
Tel: 861057290815
Fax:
