Bent Sub And Mud Motor In Directional Drilling
The most commonly used technique for changing the trajectory of the wellbore uses a piece of equipment known as a “bent sub,” which is used only in directional well drilling (Figure 1) with a Positive Displacement (mud) motor.
What is The Bent Sub In Directional Drilling
A bent sub (Drilling Subs) is a short length of pipe with a diameter approximately the same as the collars and threaded connections on either end.
https://www.drillingmanual.com/bent-sub-mud-motor-directional-drilling/
Thursday, 13 July 2023
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