Abstract: A Wellbore sand control and filtration system, method, and apparatus for controlling formation sands and for preventing the influx of formation sands into the wellbore, into the production string, and into the produced fluids, the system including introducing smooth particles into the wellbore with limited or no pumping either of particles or of fluids with the particles, introducing the production string into the wellbore with the bottom of the string being introduced into the accumulation of smooth particles, the bottom of the string having connected thereto a tool permitting flow of formation fluids into the production string, the tool moving into the accumulation of particles forcing particles into the perforation tunnels extending from the annulus through the casing and cement into the formation. The system, method, and apparatus may also be used in an open uncased uncemented hole. A tool is provided for facilitating the movement of the string through the particles.