The oriented bent sub is a major power deflection tool having a fixed angle (α) deviated from low end thread of the bent sub to axial line of drill stem , the power drill tool under the application of oriented bent sub gives the bit a constant lateral force to ensure that the bit can cut on the wellwall laterally and further drill into a curved well trace .
Technical parameters and specifications
| Type |
O.D. mm(in) |
Thread connection |
Bent angle(o) |
I.D. of oriented sleeve(mm) |
| DWT89 |
89(3 1/2) |
NC26 |
NC26 |
135 |
36 |
| 2 |
| DWT140 |
140(5 1/2) |
NC38 |
NC38 |
0-2.5 |
36 |
| DWT159 |
159(6 1/4) |
NC50 |
NC50 |
50 |
| DWT178 |
178(7) |
NC50
5 1/2FH |
NC50
5 1/2FH |
50 |
| DWT203 |
203(8) |
6 5/8REG |
6 5/8REG |
50 | |
