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Isolation Sleeves
The Isolation Sleeve is deployed and removed by slickline or CT and is designed to isolate the ESP leg of the Y-Tool. It incorporates seals which locate in the seal bores of the Y-Tool to prevent pressure between the ESP Leg and the bypass tubing form passing in either direction.Used when the bypass tubing is utilised as a production tubular when free flowing the well or running dual ESP systems. When free flowing or producing through the bypass in this way, it is important not to allow free flow through the ESP, which would otherwise create premature wear in the ESP.
Also used when bullheading fluids, such as acid, down the bypass tubing, directing the acid to below the ESP and avoiding dissipation through the ESP.
The through bore allows up to 2.31" tools to be run whilst isolation
tools are in-situ.
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