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Oriented sub is a major power deflection tool having a fixed angle αdeviated from low end thread of the bent sub to axial line of drill stem, the power drill tool under the application of oriented sub give the bit a constant lateral force to ensure that the bit can cut on the well wall laterally and further drill into a curved well trace. 

Ordering Instructions
1.Specify thread connection of both end, length and OD of sub.
2.Length and ID of oriented sleeve.
3.Please specify the bending angle of bent sub. 
4.For special order, please specify the special technical parameters or requirements in the contract. 
Ordering Instructions
1.Specify thread connection of both end, length and OD of sub.
2.Length and ID of oriented sleeve.
3.Please specify the bending angle of bent sub. 
4.For special order, please specify the special technical parameters or requirements in the contract. 
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Tianhe Oil Group Huifeng Petroleum Equipment CO. ltd.