Saves time and helps reduce risk by removing interventions from well operationsDownload PDF
Key to Hydraulic RED operation is the pressure discriminator mechanism, which effectively “locks” the device until the predetermined pressure/time window is met (i.e., the command to open is applied).
The command-to-open pressure/timeband is typically set between 2,000 and 2,500 psi and held for 10 minutes (this pressure/timeband might vary slightly depending on downhole conditions). When these conditions are met, the device opens. To prevent opening, the operator simply prevents the opening pressure/time combination from occurring. To define the operating window, an overview of the well conditions (i.e., pressure differential across the device and well temperature) is required. The operating window is defined and the device programmed before it leaves the workshop, so no pre-installation set-up is required at the rig site.
The Hydraulic RED has been developed in accordance with procedures approved by ISO 9001/2000 and subjected to a comprehensive and extensive testing regime. The testing covered a wide range of simulated downhole conditions and detailed performance characteristics established and verified through multiple repeat testing.
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