Patent ID: 8474548

Claim:
A wireless tool inserted down hole for providing drilling information during the drilling process comprising: an electrical power source; a pressure sensitive switch; a sensor package; a vibration sensitive switch; a processor; a pulser valve comprising: a stator with inlet passages that are orthogonal to a longitudinal axis of a drill string and a plurality of holes that are in line with the longitudinal axis of said drill string; and a rotor which resides inside said stator and has cylindrical blade surfaces which in a first orientation allow said drilling fluid to flow unobstructed through the passages orthogonal to the longitudinal axis of said drill string and in a second orientation, the rotor is rotatable and the blades are used to create an obstruction in the path of fluid flow through the orthogonal slots and thus generate a pressure pulse detectable at the surface; and an active electromagnetic system for subsurface collision avoidance.