| 摘要 |
A method for treating zones 202, 204 in a wellbore comprises providing a casing 200 having at least two polished bore receptacles (PBR) 230, 231, 232 installed therein and installing the casing in the wellbore wherein at least one PBR is located above the well zone and at least one PBR is located below the well zone. A concentric tubing string comprising an inner string 272, an outer string 274, and a sealing mechanism 277 arranged on the outer string is utilized and a fluid delivery tool 280 is connected to the inner string with a sealing mechanism arranged below the fluid delivery tool. The concentric string and fluid delivery tool is run in the wellbore until one sealing mechanism seals with one PBR above the well zone and one sealing mechanism seals with one PBR below the well zone. A treatment fluid is then delivered to the well zone via the fluid delivery tool. |
