Patent ID: 8517099

Claim:
A tubular member having at least one drainage section including a first plurality of self-adjustable valves or flow control devices to control the flow of fluid into the drainage section from a well formed in a subterranean reservoir, each of the valves or control devices comprising an inlet or aperture, thereby forming a flow path through the valve or control device passing by a movable disc or body which is designed to move freely relative to the opening of the inlet and thereby reduce or increase the flow-through area by exploiting the Bernoulli effect and any stagnation pressure created over the disc, whereby the valve or control device, depending on the composition of the fluid and its properties, autonomously adjusts the flow of the fluid based on a pre-estimated flow design, wherein a second plurality of such self-adjustable valves or control devices is provided in the drainage section, each such additional valves or control devices being situated in a direction opposite of the first plurality, thereby allowing injection of a fluid into the subterranean reservoir through the drainage section.