Main Functions
- Smooth Borehole Formation: The convex-concave "watermelon-like" surface design effectively polishes rough borehole walls, reducing friction and preventing tool sticking.
- Debris Removal & Surface Smoothing: Its rugged structure scrapes off loose materials or thin mud cake, creating a uniform borehole profile.
- Improve Downhole Tool Safety: Ensures safe and efficient running of subsequent tools by eliminating obstacles or irregularities in the wellbore.
They play a key role in optimizing borehole conditions and facilitating the smooth progression of drilling and completion operations.