Non-comingled concentric tubing production from two different reservoirs

A method for obtaining fluids via a well, comprising:

• running a drill string down a wellbore to set an outer tubing in the well, wherein the well comprises an external tubing and wherein the outer tubing is set at a shallow reservoir comprising a first fluid;
• disposing a first packer into the well between the outer tubing and the external tubing and above the shallow reservoir;
• running the drill string down the wellbore to set an inner tubing and a second packer within the external tubing in the well, wherein the inner tubing is set at a deeper reservoir further downhole than the shallow reservoir, the deeper reservoir comprising a second fluid,
• wherein the second packer is disposed between the external tubing and the inner tubing and above the deeper reservoir,
• producing the first fluid from the shallow reservoir, wherein the first fluid is produced via an annulus between the outer tubing and the inner tubing;
• and
• producing the second fluid from the deeper reservoir simultaneously with production of the first fluid, wherein the second fluid is produced straight through the inner tubing,
• wherein the second packer blocks the annulus through which the first fluid is extracted via the outer tubing, and
• wherein the first fluid is gas and the second fluid is oil.