Patent ID: 8474523

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, wherein the well penetrates a subterranean formation, and has a wellbore and a wellbore wall; wherein, inside the well, the wellbore is filled with a previously installed tube which is permeable to a material; wherein, the tube forms an annulus with the wellbore wall, the annulus being the near zone; wherein, a region inside the formation that is concentric to the near zone is the far zone; wherein, the zones are adjacent to the tube in the annulus, the method comprising: (i) placing inside the tube a setting section surrounded by a sleeve adjacent to the near and far zones to treat, the sleeve being expandable and impermeable to the material, wherein the sleeve is first placed inside the tube and the setting section is then placed inside the sleeve; (ii) inflating the sleeve so that the sleeve is in contact with the tube near the near and far zones to treat, ensuring that a first zone of the tube is impermeable to the material, but leaving a second zone permeable to the material; (iii) pumping a treatment fluid to the near and far zones to treat, the treatment fluid passing into the annulus via the second zone still permeable to the material; (iv) treating the near zone to treat, the far zone to treat or both the near and far zone to treat with the treatment fluid; (v) deflating the sleeve so that the sleeve is no longer in contact with the tube near the near and far zones to treat; and (vi) removing the setting section with the sleeve from the near and far zones to treat by pulling it out.