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Tricone Drill Bit For Oilfield Clay Hard Rock

Basic Info

Model No.: 537

Product Description

Drill Bit Parameters	Application
Tri-cone bits type	8 1/2"	SOFT to medium formations with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasiver interded, etc.
IADC	537
WOB(KN/mm)	0.45-1.0
RPM(r/min)	220-50	Note: the maximum value of WOB and RPM in this table can not be adopted at the same time.
API Pin Connection	4 1/2" API REG

Drilling Head Tungsten Carbide 8 1/2 Tricone Drill Bit For Water Well Oilfield Clay HARD Rock

Drill Bit Parameters Application

Tri-cone bits type 8 1/2" SOFT to medium formations with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasiver interded, etc.

IADC 537

WOB(KN/mm) 0.45-1.0

RPM(r/min) 220-50 Note: the maximum value of WOB and RPM in this table can not be adopted at the same time.

API Pin Connection 4 1/2" API REG

IADC Pressure(KN/mm) Drill speed(r/min) Applicable strata

417/427 0.3-0.9 150-70 Very soft strata have low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.

437/447 0.35-0.9 150-70

515/525 0.35-0.9 180-60 Soft strata have low compressive strengthand high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.

517/527 0.35-1.0 140-50

535/545 0.35-1.0 150-60 Soft to medium-soft has low compressive strength, such as medium-soft shale, medium-soft limestone, medium-soft sandstone, forming medium-hard and hard grinding interlayer.

537/547 0.4-1.0 120-40

617/627 0.45-1.1 90-50 High compressive medium-hard formation strength, such as hard shale, limestone, sandstone, dolomite, etc.

637 0.5-1.2 80-40 Hard strata have high compressive strength, such as sandstone, limestone, dolomite, gypsum, marble, etc.

737 0.7-1.2 70-40 Hard strata have high compressive strength, such as hard limestone, dolomite, etc.

827/837 0.7-1.2 70-40 Extremely hard strata with high compressive strength and abrasiveness, such as hard limestone, dolomite, hard sandstone, chert, etc.

Our Advangates

1. Two manufactures: New manufacture with 40,000 square meters in Hebei Province ,very near to Beijing , and build our own R&D Exchange Center in Beijing.

2. Goverment give us a High-tech Firm Authories Certification,we got API Spec7-1 Quality Control Standard. ISO9001:2008 Quality Management System. ISO14001:2004 Environment Management System.

3. DMG and Mazark machines manufacture with high precision .

4. Strong designs , engineers , production, sales and after sales service team.

5. OEM&ODM service.

Contact us if you need more details on Drilling Head Tungsten Carbide Drill Bit. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 8 1/2 Tricone Drill Bit、Drill Bit For Clay Hard Rock. If these products fail to match your need, please contact us and we would like to provide relevant information.

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IADC	Pressure(KN/mm)	Drill speed(r/min)	Applicable strata
417/427	0.3-0.9	150-70	Very soft strata have low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.
437/447	0.35-0.9	150-70
515/525	0.35-0.9	180-60	Soft strata have low compressive strengthand high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.
517/527	0.35-1.0	140-50
535/545	0.35-1.0	150-60	Soft to medium-soft has low compressive strength, such as medium-soft shale, medium-soft limestone, medium-soft sandstone, forming medium-hard and hard grinding interlayer.
537/547	0.4-1.0	120-40
617/627	0.45-1.1	90-50	High compressive medium-hard formation strength, such as hard shale, limestone, sandstone, dolomite, etc.
637	0.5-1.2	80-40	Hard strata have high compressive strength, such as sandstone, limestone, dolomite, gypsum, marble, etc.
737	0.7-1.2	70-40	Hard strata have high compressive strength, such as hard limestone, dolomite, etc.
827/837	0.7-1.2	70-40	Extremely hard strata with high compressive strength and abrasiveness, such as hard limestone, dolomite, hard sandstone, chert, etc.