Directional Drilling TRIZ Cases
- Flexible Liner Eversion Steering via Asymmetric Reinforcement
An asymmetric reinforcement tendon controls circumferential tensile strength, enabling a flexible liner to navigate enlarged borehole voids without entrapment.
- Annular Flow Restrictor for Drilling BHA Pressure Control
An annular flow restrictor controls bypass fluid leakage in a drilling motor driveshaft, maintaining sufficient hydraulic pressure despite radial bearing wear.
- Inverted Wellbore Drilling Motor Reduces Drive Shaft Fatigue
Inverted drill motor design reduces drive shaft fatigue failures by rotating the internal shaft at surface speed while the outer housing drives the bit.