Wellbore Isolation Device With Internal Control Line Routing
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Solution Overview
Problem
In multi-zone wellbores, existing systems face challenges in creating a reliable flow barrier between production zones and upper well completion while maintaining communication with lower completion tools, especially during the deployment of upper completion tools.
Innovation Solution
An isolation system comprising a lower wet connect portion, central production tubing, an isolation device, and at least one control line, where the control line is associated with the lower wet connect portion and routed through the isolation device, facilitating both fluid isolation and communication with downhole equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an isolation device is deployed to create a flow barrier between production zones and upper well completion, then fluid isolation reliability is improved, but communication with lower completion tools is blocked
Solution Approach 1:
The system divides the wellbore into isolated zones using the isolation device while maintaining separate communication pathways. The control line is routed through the isolation device body, creating independent channels for fluid isolation and electrical communication, thus resolving the contradiction between flow barrier reliability and communication capability
Solution Approach 2:
The isolation device acts as an intermediary element that simultaneously performs two functions: creating a flow barrier and serving as a conduit for control lines. The device body with its internal cavity and routing features enables both fluid isolation and electrical signal transmission, mediating between the conflicting requirements of isolation and communication
2Loss of information
If control lines are routed through the isolation device, then communication with lower completion tools is maintained, but device complexity increases
Solution Approach 1:
The isolation device is designed as a multi-functional component that combines flow isolation with integrated control line routing capabilities. The device body incorporates cavities, passages, and connection features that enable both hydraulic isolation and electrical communication functions within a single component, reducing overall system complexity despite the added communication capability
Solution Approach 2:
The system merges the isolation device and control line routing into a single integrated structure. The control lines are embedded within the isolation device body, combining what could be separate components into one unified element, thus maintaining communication capability while managing device complexity through integration
Data Source
AI summary
An isolation system is disclosed that contains a lower wet connect portion; a central production tubing; an isolation device associated with the central production tubing, and at least one control line. Further at least one control line is associated with the lower wet connect portion and is disposed through an inside diameter of the isolation device. Further method for isolating a lower completion is disclosed that includes conveying an isolation assembly to the lower completion, the isolation assembly including a lower wet connect portion, at least one control line, a central production tubing, and an isolation device, and routing the at least one control line through an inside diameter of the isolation device. Further completion system is disclosed that contains a lower completion system and an isolation system associated with the lower completion system.