SPECIAL REPORT: Straddle packer assemblies allow selective completions, stimulations

In well completions, straddle packers offer a way to shut off zones from producing or injection intervals above or below the packers. In this article, two examples from completions in the North Sea and one off Brazil illustrate the use of straddle packers.In its simplest form in an oil field application, a straddle assembly will have two packers connected to each other in a manner that isolates the section between these two packers from the zones above and below the assembly.Packers differ from bridge plugs in that packers have an unrestricted ID that allows for fluid flow from top to bottom or vice versa. Bridge plugs, on the other hand, are tools that, when set in a well, have no throug...

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