8 1/2''
Customized
AISI, API
Taper-length
Center Drill Bit
High Carbon Steel
Well Drilling
Drilling Tool
Forging
High-Efficiency ,Wear Resistant
Journal /Roller Bearing Bit
Medium Hard Formation
LONGYUE
Wooden Case
Hebei, China
8207199000
Product Description
Product Description


Inspection process

Company Information

Packaging & Shipping

FAQ
1. How to get an exact quotation?
Answer: Please send us detailed information as below:
-Tricone bits(Diameter, IADC code)
-PDC bits(Matrix or Steel body, blades quantity, cutter size, etc)
-Hole opener(Diameter, size of pilot hole, hardness of rocks, thread connection of your drill pipe, etc.)
-Roller cutters(Diameter of cones, model number, etc.)
A simple way is sending us photos .
Besides above, if possible please provide more information as below:
Drilling depth in vertical well drilling, Drilling length in HDD, hardness of rocks, Capacity of drill rigs, application(oil/gas well drilling, or water well drilling, or HDD, or foundation).
Incoterm: FOB or CIF or CFR, by plane or ship, port of destination/discharge.
The more information provided, the more exact quotation will be offered.
2. About lead time,payment terms, delivery ?
Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order.
We accept all regular payment terms including L/C, T/T, etc.
We are near from Beijing airport and Tianjin(Xingang) seaport, transportation from our factory to Beijing or Tianjin only takes one day, fast and very economical inland charges.



Recommended Drilling Parameters | |||
IADC | WOB(kn/mm) | RRM(r/min) | Applicable Formations |
116 117 | 0.35~0.8 | 150~80 | Very soft formations with low compressive strength and high drillability.such as clay,mudstone,chalk,etc. |
126 127 | 0.35~0.9 | 150~70 | Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt,salt,soft shale,soft limstone,etc. |
136 137 | 0.35~1.0 | 120~60 | Soft to medium soft formations with low compressive strength and high drillability,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds,etc. |
216 217 | 0.4~1.0 | 100~60 | Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft for mations with harder interbeds etc. |
246 247 | 0.4~1.0 | 80~50 | Medium hard formations with high compressive strength,such as abrasive shale,limestone,sandstone,dolomite,hadr gypsum,marble,etc. |
417 437 447 | 0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability,such as clay,gypsum,salt,soft shale,soft limestone,etc. |
517 527 | 0.5~1.0 | 140~60 | Soft formations with low compressive strength ang high drillability such as mudstone,gypsum,salt,soft shale,soft limestone,etc. |
537 547 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,mediun soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds.etc. |
617 627 | 0.45~1.1 | 90~50 | Medium hard formations with high compressive strength such as hadr shale,limestone,sandstone,dolomite,etc. |
637 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone,limestone,dolomite,hard gypsum,marble,etc. |
Note:the upper limits of WOB and Rpm in above lable should bot used simulaneously |
Inspection process

Company Information
Basic information
Business Type:Manufacturer,Trading Company
Main Products: Tricone Bit,PDC bits,Hole Opener,Roller Cone Bit,Drag Bit
Total Annual Revenue:US$1 Million~US$2.5Million
Top 3 Market:Domestic Market 50.00%,Eastern Asia 10.00%,Mid 10.00%
Location:Hebei,China(Mainland)
Toal Employees:101-200 people
Trade Capacity
Trade & Market
Main Markets | Total Revenus(%) |
Domestic Market | 50.00% |
Eastern Aisa | 10.00% |
Mid East | 10.00% |
North America | 5.00% |
South Aisa | 5.00% |
Northern Europe | 5.00% |
Easrtern Europe | 5.00% |
South America | 5.00% |
Africa | 5.00% |
Export percentage: 70%~80%
No.of Employees in Trade Department:15~20 people
Countries that our company have already exported:United States, Australia, Costa Rica, Guatemala, Azerbaijan, Congo, Myanmar, Peru, Singapore, Oman, Indonesia, Philippines, India, Switzerland, Ukraine, Turkey, Bolivia, Romania, Kenya, Vietnam, South Africa, Kuwait, Mozambique, Ecuador, France.
ExhibitionCertificates

Packaging & Shipping

FAQ
1. How to get an exact quotation?
Answer: Please send us detailed information as below:
-Tricone bits(Diameter, IADC code)
-PDC bits(Matrix or Steel body, blades quantity, cutter size, etc)
-Hole opener(Diameter, size of pilot hole, hardness of rocks, thread connection of your drill pipe, etc.)
-Roller cutters(Diameter of cones, model number, etc.)
A simple way is sending us photos .
Besides above, if possible please provide more information as below:
Drilling depth in vertical well drilling, Drilling length in HDD, hardness of rocks, Capacity of drill rigs, application(oil/gas well drilling, or water well drilling, or HDD, or foundation).
Incoterm: FOB or CIF or CFR, by plane or ship, port of destination/discharge.
The more information provided, the more exact quotation will be offered.
2. About lead time,payment terms, delivery ?
Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order.
We accept all regular payment terms including L/C, T/T, etc.
We are near from Beijing airport and Tianjin(Xingang) seaport, transportation from our factory to Beijing or Tianjin only takes one day, fast and very economical inland charges.