Degradable material assisted diversion (DMAD) methods for well treatment, DMAD treatment fluids, and removable plugs for DMAD in downhole operations. A slurry of solid degradable material is injected into the well, a plug of the degradable material is formed, a downhole operation is performed around...http://www.google.co.uk/patents/US7565929?utm_source=gb-gplus-sharePatent US7565929 - Degradable material assisted diversion
