Method for casing using multiple expanded areas and using at least one inflatable bladder

A method for controlling the production of fluid inside a well, allowing the plugging of a producing area during exploitation, comprising:

• axially introducing a length of cylindrical tube, the diameter of which tube is slightly smaller than the diameter of the well, the tube comprising pervious portions having a wall which is pervious to the fluid being produced and impervious portions having a wall which is substantially impervious to the fluid being produced, wherein the pervious portions are alternatively positioned between the impervious portions;
• radially expanding certain of the impervious portions so the wall of each expanded impervious portion bears against the wall of the well in such a way that two expanded portions of the tube are located on either side of the area to be controlled and the two expanded portions are connected to each other through a tube section comprising a pervious portion and an impervious portion, the impervious portion being adjacent to the area to be controlled and extending beyond the area to be controlled in the direction of the pervious portion;
• and
• subsequently, when it is desired to prevent the area to be controlled from producing fluid, radially expanding the impervious portion of said tube section beyond the area to be controlled on the side of the pervious portion.