12 1/4" IADC 637 deep well drill bit/ single roller cone bits

Overview

Quick Details

Place of Origin: Hebei, China, Hebei, China (Mainland)

Brand Name: LONGYUE, LONGYUE

Model Number:   8 1/2'',9 1/2'',12 1/4'', Carbide Drill Bit

Type:   Core Drill Bit

Use:    Well Drilling

Sealed Type:   Rubber Sealed Bearing/O-ring Sealed Bearing

Pin Connection:   4 1/2" API Regular

Certification:   API

Product name:     12 1/4" IADC 637 deep well drill bit/ single roller cone bits

Supply Ability

Supply Ability    150 Piece/Pieces per Day

Packaging & Delivery

Packaging Details   wooden cases,or as customer's request

Port       tianjin seaport

Product description

 

Hejian Longyue Drill Bit Manufacturer Co.,Ltd can design all the rock reamer (Hole Opener) for bith horizontal directional drilling and vertical drilling as your special request,for example center shaft length,thread type,roller cones sizes,pilot size,extra projection on the plam,nozzles,nozzles sizes,for bith replaceable cones and fixed cones hole opener for your whole drilling project.We registered brand-Longyue.

Cuttong Structure

part of tricone bit,both steel tooth bits and tci bits are available

 Products Application

bit cutter legs are mainly used in building big diameter piling bits or hole opener main type available

Most of regular sizes and IADC code

Available Sizes

from 2 7/8 to 26'' large sizes for hole opener bit,reaner bit

Application

petroleum&gas,water well,mining and tectonic industries,oilfield,construction,geothermal,directional bording,and underground foundation work hard formation rock /roller cone cutter bit uesd in hdd reamer

 

Basical Specification
Size of Rock Bit	12 1/4 inches
	311.1mm
IADC Code	637
Operating Parameters
WOB(Weight On Bit)	11664~27994lbs
	51.7~124.4KN
RPM	80~40r/min
Formation	hard formations with high compressive strength,sandstone,limestone,etc.

 

Recommended Drilling Parameters
IADC	WOB(kn/mm)	RPM(r/min)	Formations
117	0.30-0.75	180-60	very soft formation with low compressive strenght and high drillability,such as caly,mudstone,chalk,etc.
127	0.30-0.85	180-60	soft formation with low compressive strength and high drillability,such as mudstone,gypsum,soft limestone,etc.
217	0.35-0.95	150-60	soft to medium hard formations with high compressive strength,such as medium soft shale,sandstone,limestone,etc.
437	0.35-0.9	240-70	soft formation with low compressive strenght and high drillability,such as caly,mudstone,chalk,soft limestone,etc.
517	0.35-1.0	140-60	medium soft formation with low compressive strength and high drillability,such as mudstone,sandstone,shale,etc.
537	0.45-1.0	120-50	medium soft to medium hard formation with low compressive strength,such as medium shale,sandstone,medium limestone,etc.
617	0.45-1.1	90-50	medium hard to hard formation witj high compressive strength,such as hard shale,limestone,dolomite,etc.
637	0.5-1.2	80-40	hard to very hard formation with high compressive strength,such as hard limestone,dolomite,marble,etc.
NOTE the upper limits of WOB and RPM in above table should not be used simultaneously

 

 

Product picture

 

 

 

 

 

 

 

 

 

 

 

Hot sales

 

 

 

Company Information

Hejian Longyue Drill Bit Manufacturer Co.,Ltd

is a manufacturer of Drill Bit with well-equpiied testing facilities andstrong technical force.With a wide range, good quality,reasonadle price and prompt delivery,our products are extensively used in oil filed,wrll Drilling,No Dig filed and other industries.our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and from all walks of life to contact us for future business relationships andmutual success!

 

 

 

 

 

 

Certificates

 

Exhibotion

 

 

Packaging & Shipping

Packaging Details:wooden cases,or as customer's request

Delivery Times:5days since confirm the order