TCI rock bit for oil from China manufacturer - Hejianshi Tengda Petroleum Supplies Co.,Ltd

Price:	500.0~8000.0 RMB
Payment Terms:	T/T
Place of Origin:	Hebei, China (Mainland)


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Product Detail

Model No.: TH637

Production Capacity: 500pieces per month

Delivery Date: 7 days after deposit

Style: Others

insert rock bit: rock bit

size: 3-3/4''-26''

Means of Transport: Ocean,Land

Packing: in wooden box or iron box

Type: Others

Brand Name: TENGDA

drill roller bit: buttion drill bit

export market: global

1.Homework diameter size:12-1/4inch
2.Connection thread size:4-1/2
3.Cutting teeth specifications:1613

type	IADC Code	Applicable formation	Main characteristics of the bit	Recommended parameters
type	IADC Code	Applicable formation	Cutting structure	Normal WOB KN/mm(bit dia.)	Rotary Speed(rpm)
TH437	437	Very soft with low compressive strength and high drillability,such as(clay,loose sandstone,soft mudstone,salt bed,etc)	Large dia,scoop chisel tngsten carbide compacts,high compact exposure.	0.50-0.70	150-60
TH447	447	Very soft to soft with low compressive strength such as,(clay, shale, stansstone,salt bed and soft limestone etc.)	Large dia conical and conical scoop chisel tungsten carbide compacts,high compact exposure.	0.50-0.70	150-60
TH517	517	Soft with low compresive strength and high drillability,such as mudstone,shale,salt bed,standstone and soft limestone,etc.	Large dia scoop chisel tungsten carbide compacts	0.50-0.90	100-45
TH527	527	Soft with thin &hard stringers,such as salt bed,mudstone,sandstone,soft limestone and hard shale,etc.	Conical and conical scoop chisel tungsten carbide compacts.	0.50-0.90	100-45
TH537	537	Soft to medium soft with low compressive strength,such as hard shale,mudstone,soft limestone and sandstone,etc.	The inner row compacts are scoop chisel ,and heel row are wedge compacts.	0.60-0.90	80-40
TH547	547	Soft to nedium soft with harder & abrasive stringers,such as hard shale,mudstone,soft limestone and sandstone,etc.	Conical compacts in inner row, spherical compacts in outer row,with on more row of compacts than TH537	0.60-0.90	80-40
TH617	617	Medium hard with high compressive srength,such as limestone,dolomit,hard shale and sandstone,etc.	The inner row compacts are conical and heel are blunt wedge compacts	0.7-1.00	60-45
TH627	627	Medium hard with high compressive strength and hard streaks,such as limestone,dolomite,hard sandy formation and sandstone,etc.	Conical compacts in inner row,spherical tungsten caride compacts in heel row.	0.8-1.00	55-45
TH637	637	Medium hard with high compressive strength and abrasiveness,such as limestone,hard sandstone and chert,etc.	Conical compacts in inner row,spherical tungsten caride compacts in heel row.	0.8-1.00	55-45
TH737	737	Hard with high abrasiveness, such as hard limestone,dolomite,hard sandstone and chert,etc.	Spherical compacts in rose row and heel row,conical spherical compacts in inner row	0.8-1.00	60-45
TH838	838	Very hard with high compresive abrasiveness,such as quartzite,sandy quartzite,chert,and basalt etc.	Spherical tungsten carbide compacts in each row	1.10-1.30	60-45