Patent ID: 8091641

Claim:
A method of treatment of a near zone of a well, a far zone of a well or both a near zone and a far zone of a well comprising a wellbore and wherein the method comprising: (i) placing inside the wellbore a tube which is permeable to a material, so that the tube forms an annulus with the wellbore, a first zone being inside the annulus and a second zone being in the formation adjacent the wellbore; (ii) placing inside the tube a setting section surrounded by an expanding sleeve, the setting section having a delivery opening located at the lower end of the setting section below the sleeve and the sleeve being expandable and impermeable to the material; (iii) inflating the sleeve so that the sleeve is in contact with the portion of the tube defining the near zone, ensuring that the first zone of the tube is impermeable to the material, but leaving the second zone permeable to the material; (iv) pumping a treatment fluid to the near and far zones; and (v) treating the near zone, the far zone or both near zone and far zone with the treatment fluid wherein the setting section has an upper part and a lower part, the setting section being connected to a delivery section going on surface at the upper part, and being in communication with the inside of the well at the lower part through the delivery opening, and wherein the step (iv) of pumping a treatment fluid to the zones is done by: delivering the treatment fluid inside of the well through the delivery section, through the setting section and through the delivery opening; filling the inside of the well located downhole from the lower part with the treatment fluid, until the treatment fluid passes into the annulus via the second zone still permeable to said material; and rising said treatment fluid into the near zone or the far zone or both.