Abstract: A method for installing a production string in a wellbore and a production assembly for deployment in a wellbore are disclosed. An upper completion portion including a tubular and an upper circulation valve and a lower completion portion including a screen assembly and a lower circulation valve are together deployed into a wellbore at the same time. The upper circulation valve is movable between a closed position to block fluid communication between the interior and the exterior of the tubular and an open position to establish fluid communication between the interior and the exterior of the tubular. The lower circulation valve is movable between an open position to establish fluid communication between the interior and the exterior of a base pipe deployed adjacent the screen assembly and a closed position to block fluid communication between the interior and the exterior of the base pipe.

Abstract: Certain aspects and features of the present invention are directed to an isolation assembly that can be disposed in a wellbore through a fluid-producing formation. The isolation assembly can include one joint of a tubing section, at least two inflow control devices, and an isolation element. The joint of the tubing section can include at least two ports. Each inflow control device can be coupled to the tubing section at a respective port. The isolation element can be positioned between the inflow control devices. The isolation element can be configured to fluidly isolate the ports from each other.

Abstract: A method and apparatus for fracturing a formation or gravel packing a borehole extending through an unconsolidated subterranean zone in a formation includes a screen assembly having a length adapted for disposal adjacent the unconsolidated subterranean zone and includes a plurality of screens mounted on a base member with adjacent base members being connected by a sub having an aperture in the wall thereof. A flow-control service assembly is disposed within the bore of the screen assembly and includes an outer tubular member and an inner tubular member. The outer tubular member includes a plurality of ports that communicate with the apertures in the screen assembly. The apertures in the screen assembly are disposed along the length of screen assembly at predetermined intervals. The inner tubular member and outer tubular member form an inner annulus, the outer tubular member and screen assembly form a medial annulus, and the screen assembly forms an outer annulus with the wall of the borehole.