8 1/2" Oil Well Drilling Tungsten Carbide Rock Roller Bits

• Type: Petroleum Drilling Machine
• Usage: Well Drilling
• Certification: ISO
• Transport Package: Wooden Case
• Specification: according requirement
• Trademark: HJ
• Model NO.: iadc
• Origin: Hebei
• HS Code: 8207191
• Production Capacity: 100

Product Description

8 1/2" Oil well drilling tungsten carbide rock roller bits

Reduce drilling days

 roller cone drill bits continue to be a versatile, reliable solution for high-speed, high-temperature rotary and motor drilling in a variety of demanding applications.

 

Our patented SEM™ single-energizer metal seal remains the standard our competitors have yet to match. You can count on these MX bits for longer life and durability to decrease drilling time and lower cost-per-foot.

Longer bit life

Field-performance reliability analyses prove our MX roller cone drill bits and their metal seals have significantly greater bit life compared with standard elastomer-sealed bits in high-speed, high-temperature applications.

When mud packing or high temperatures could be a potential problem, this seal technology is the right choice.

 

Recommended Parameters
Structure	Non-sealed Roller Bearing					Rubber Sealed Roller Bearing						Rubber Sealed Sliding Bearing
IADC Code	121	131	211	241	321	114/ 115	124	134/ 135	214/ 215/ 225	244	324	116/ 117	126/ 127	136/ 137	216/ 217	246/ 247
WOB(kN/mm)	0.35-0.7	0.35-0.7	0.4-0.75	0.4-0.75	0.45-0.75	0.3-0.65	0.35-0.7	0.35-0.7	0.4-0.75	0.4-0.75	0.45-0.75	0.35-0.7	0.4-0.75	0.4-0.75	0.45-0.8	0.45-0.8
Rotary Speed(r/min)	180-80	150-80	150-60	120-60	110-60	150-60	150-60	120-60	120-60	120-60	100-50	150-60	120-60	100-60	80-60	70-50