Patent ID: 11898427
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. 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.