E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/65
E21B 33/122 (2006.01) E21B 23/06 (2006.01) E21B 33/124 (2006.01) E21B 33/127 (2006.01)
Patent
CA 1317216
INFLATABLE PACKERS AND METHODS OF UTILIZATION ABSTRACT OF THE DISCLOSURE Modifications are provided for both single unit and dual unit inflatable packers or bridge plugs permitting such inflatable tools to be inserted in a well through the primary tubing string which in turn is suitably sealably anchored in the well above the producing formations. The inflatable tool is inserted into the well on a conduit, such as coiled tubing, and fluid pressure transmitted through the conduit is utilized to effect the expansion and setting of the inflatable elements of the inflatable tool. The conduit is connected to the inflatable tool by a fluid pressure operated release mechanism and, following the inflation of the inflatable element or elements, the conduit may be utilized to supply treatment fluid or cementing fluid to a formation isolated by the inflatable tool. Alternatively, the conduit may be disconnected from the inflatable tool and retrieved from the well to permit the inflated tool to maintain a production formation in an isolated condition, to prevent further leakage of a leaking packer, or to permit wireline installation of a choke to regulate the amount of flow into or out of a producing or injection formation isolated by the inflated tool.
611618
Baker Hughes Incorporated
Borden Ladner Gervais Llp
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