A system and method for fracturing an earth formation surrounding a borehole includes an elongate conduit positioned in the borehole. A packer assembly is provided about the conduit and is adapted to seal an annulus between the conduit and the borehole. A packing passage is provided and adapted to communicate...http://www.google.com.au/patents/US20050279501?utm_source=gb-gplus-sharePatent US20050279501 - System and method for fracturing and gravel packing a borehole
