Majority of the high rate gas wells in the world are completed with Monobore completion system. The conventional sequences of running Monobore completion in giant gas field of SouthPars are in three steps: Run No. 1 which includes running Liner and liner hanger by drill pipes (DP) and normally followed by cementing behind liner, Run No. 2 which includes Running Tie Back production Packer with 15 ft Polished Bore Receptacle (PBR)by setting tool and DP and finally Run No. 3 which includes running completion string with upper seal stem and at the end complete the well with proper space out. Running of tie back production packer with setting tool and DP in one step and running upper seal stem by tubing in last step has some concerns (More Rig time, cost, safety, etc). Feasibility Study and research was carried out to check the possibility of combining the run No. 2 and 3 together. A new method has been developed and after successful surface test it was run in one of gas wells in South Pars giant gas field in Persian Gulf. All pressure tests after installation were satisfactory. This procedure saved almost 1.5 day of rig time and protected seals against mechanical damage while running in the hole.