The MZ-Xpress system allows multizone gravel and frac packing in a single trip, using multiple pumping treatments. After all zones of interest have been perforated, the downhole completion equipment is deployed, set, and tested in one trip. Individual zones are isolated and treated (gravel or frac packed) indepen-dently. Eliminating multiple trips reduces both rig time and the standby time for surface pumping equipment. Production can be either commingled or zones can be selectively produced.