Unfortunately I do not have experience using the V-Stab. NOV reported on the benefits of using the tool with RSS (SPE 149696) by reducing backward whirl (lateral vibration damage) which appeared to help in their field test (Cotton Valley formation - Louisiana, onshore USA)... which may or may not help you due to those differences.
That being said, do you have any more information about:
- What kind of vibrations are you seeing (X-Y, Z, torsional)?
- Are you only seeing that kind of vibration when drilling through a certain formation?
- What kind of mud are you using?
If you had a particular pattern of bit damage or MWD tool failure, that would also be helpful to understand which vibration is limiting you in the 17 1/2" hole section.