Drilling a horizontal well in the middle bakken formation (normal stress regime),
what is the most favorable direction for wellbore trajectory, with respect to the direction of the in-situ stresses, from wellbore stability point of view? support your answer by providing a simple numerical example.
if hydraulic fracturing is operated in this well, what would be the direction of initiation and propagation of the fracture with respect to the wellbore trajectory.
if the well is drilled in the most favorable direction, on which locations around the wellbore (sides or top and bottom) we expect to observe shear failures? explain why.