The risk of losing a well due to hole stability issues or losing...

The risk of losing a well due to hole stability issues or losing a tool such as the MDT due to differential sticking have not disappeared. Drilling a vertical well at M2 will help, but I am not sure if they have decided to use synthetic oil based mud for the Upper and Lower Angwa to reduce hole stability issues? In addition, based on very few pretest pressures from well M1-ST, how confident are they regarding the accuracy of the multi-zone formation pressures, and hence mud overbalance at M2?========================

If I remember right mud overbalance issues occurred mainly in the upper part of MK-1.
And especially for the side track drill, issues where mainly due to missing log tools on site, timing and well deterioration...