IADC 537 7 7/8 Inch Tricone Bit Drilling Drag Bit for Water Well

China IADC 537 7 7/8 Inch Tricone Bit Drilling Drag Bit for Water Well, Find details about China Tricone Bit, Drag Bit from IADC 537 7 7/8 Inch Tricone Bit Drilling Drag Bit for Water Well

Basic Info.

Model NO.

537

Trademark

Anbit

Origin

China

Model NO.

537

Trademark

Anbit

Origin

China

Product Desciption

High Quality IADC 537 7 7/8 inch Tricone Bit Drilling Drag Bit for Water Well
IADC 537 7 7/8 Inch Tricone Bit Drilling Drag Bit for Water Well

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.