Abstract: A packer apparatus for sealing between a tubing string and a casing in a wellbore is disclosed. The packer apparatus includes a seal assembly disposed about a packer mandrel. Upper and lower seal wedges are disposed about the packer mandrel above and below the seal assembly and may be inserted between the seal assembly and the packer mandrel to radially expand the seal assembly into engagement with the casing. The seal assembly includes an expandable elastomeric seal element having anti-extrusion bridge elements disposed in recesses at the upper and lower ends thereof. The anti-extrusion elements form an almost complete circle and thus are arcuately shaped having first and second ends with a gap therebetween.