Bi-center bit for Mining Machinery and abrasive formation

Overview of Bi-center Bit

This type of bicenter bitmainly used for medium to medium-hard compressive and abrasive formation, it has medium and high-density parabolic crown and heavy cutters density for the bit has good impact resistance and anti-abrasive, high wear-resistant diamond gauge, the wholesale bi center drill bithas a longer service life.

In directional applications, bi centerbit performance usually presents performance challenges in terms of efficiency versus power availability and dynamic issues.

Cangzhou Great Drill Bits Co.,Ltd.designed the bi-center bit to enlarge the wellbore diameter, to replace under reaming, to help control rouble zones and for expandable tubular.

Bi-center Bit Design

As one of drill bit manufacturers, we designed this bi-center bits with close attention to hydraulic optimization to improve chip removal and ensure effective tool cooling. In addition to the improved hydraulic configuration, the cutting configuration was carefully studied to ensure that it is both effective and balanced - not only on conventional components but also when used in combination with a bent-case motor. This design concept of bi center bitscombined with GREAT's wide range of PDC cutters grades and geometries results in a bi-center drill with excellent drilling performance.

The Specification of Bi-center Bit

Here are the bi center drill bit sizes.

Reaming Size	12 1/4"	Nozzle Qty	3NZ
Pass Thru Size	10 1/2"	Gauge Lenghth
Blade	5	Connection	6 5/8" API REG
Primary Cutter Size	16mm	Make up Torque(kN.m)
Rotary Speed(rpm)	60~260	Weight on Bit(KN)	30~260
	180	Flow Rate(lps)	35~70

The Advantage of Bi-center Bit

Our Bi-center bit is one piece body, you will never worry about broken.

We can adjust the bi-center diameter according to your casing diameter. Generally speaking, the bigger pilot bit has a smaller reaming size. The smaller pilot bit has a bigger reaming size.

GREAT's casing protection features cutting structure that provides a reliable way to drill, protecting both the cutting structure inside the casing and the casing itself.

During the design process, the pilot and reamer cutting structure of this PDC bit are force balanced as a single unit. This provides the bi center drill bits increased drilling efficiencies in both vertical and deviated wells.

Other supplier products

	Three Cone Drill Bit For Soft Formation for water well drilling	Overview of Steel Tooth Bit This superior method provides a stronger, more impact-resistant tooth than milling because the metal particle structur...
	Hard Rock PDC cone bit Used for drill underground core	Overview of PDC Core Bit GREAT customized made Diamond core bits, which including Matrix body and Steel body, the Diamond core bit is used to dril...
	Roller Bit	GREAT has customized manufacture several types of roller bit. Our roller cone drill bit includes the 90 ° U-shaped Roller Bit series and the 12...
	The Application Field and the Drilling Technology of the Roller Cone Bit	The single roller cone bits rock by crushing and shearing. The cone is rolling at the bottom of the well, so the requirement for the torque is smal...
	RC PDC Bit	Reverse circulation PDC bit for geological exploration samples Overview RC Drill Bit RC PDC drill bit from GREAT are manufactured from AISI 414...

All supplier products

Same products

	89mm Threaded Water Well Drill Pipe	Seller: Jinzhou City TongShun Drilling Machine Co.,Ltd	Introducing our premium 60mm Threaded Water Well Geothermal Drill Pipe, specifically designed for...
	Brushless 2-speed lithium drill cordless battery 20-CD10	Seller: Nuevo Oriente Machinery & Electronic Co.,Ltd	The full range of 16v and 20v brushless systems gives you variable speed control and a safe braki...
	Brushless 2-speed lithium impact drill cordless battery 16-CID10	Seller: Nuevo Oriente Machinery & Electronic Co.,Ltd	The full range of 16v and 20v brushless systems gives you variable speed control and a safe braki...
	Brushless 2-speed lithium drill cordless battery 16-CD10	Seller: Nuevo Oriente Machinery & Electronic Co.,Ltd	The full range of 16v and 20v brushless systems gives you variable speed control and a safe braki...
	Brushless 2-speed lithium impact drill cordless battery 20-CID13	Seller: Nuevo Oriente Machinery & Electronic Co.,Ltd	The full range of 16v and 20v brushless systems gives you variable speed control and a safe braki...