The MAP Hydroset is a high pressure hydraulic set production packer; which is released by straight pick-up of the tubing string. It is suited for well completions where it is desired to set the packer after the well has been flanged up, as well as for deviated holes, gas lift installations, and other completions where a mechanical set packer is not suitable. The Hydroset is ideal for setting in stacked installations because the built-in zone activated pressure balanced system offsets pressure differentials across the packer.