What factors influence the trajectory of a directional well?

The trajectory of a directional well is influenced by a number of factors, including geology and drilling technology. Typically, the bottom hole assembly (BHA) orientation, bit RPM, and the weight on the bit determine whether an operator can effectively drill in the direction they choose. ProDirectional is a leader in directional drilling technology, and offers a number of proprietary MWD tools and directional drilling motors for vertical and horizontal drilling.