Vertechs RWSS technology is designed to provide a real-time enhancement of wellbore stability during drilling instable formations which are caused by: 

1) low formation pressure; 

2) narrow pressure window; 

3) matured microfracture; 

4) unstable coal layer, etc. 

Moreover, the patented on-site evaluation apparatus is the key to monitor & maximize the effectiveness of wellbore strengthening material. This field proved solution has been applied in various challenging wells and reduced NPT substantially related to wellbore instability and induced losses. 

· Effective control of induced losses while drilling

· Preventing collapse by forming very low permeability film at fluid-rock interface to stop drilling fluids invasion

· Real-time performance evaluation with patent apparatus HPIT

· Real-time invasion control optimization

· Compatible with OBM/WBM