Tubing Hanger Interface Tool for Universal Christmas Tree Access
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Solution Overview
Problem
Existing well intervention and plug and abandonment operations face challenges due to the uniqueness of tubing hangers and internal tree caps, requiring manufacturer-specific tools, which are costly and impractical for interfacing with third-party equipment.
Innovation Solution
A universal tree adapter and tubing hanger interface tool system that allows for a simple and adaptable interface with various downhole components, including third-party equipment, by using a project-specific stab to lock onto wellbore components and seal against internal tree caps or hangers, reducing the need for manufacturer-specific tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manufacturer-specific tools are used for each tubing hanger and internal tree cap, then reliability of operation is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by designing a single interface tool with multiple functional capabilities. The tool can engage with different tubing hanger and internal tree cap configurations through various engagement elements (dogs, keys, splines) that can be selectively positioned. This allows one tool to perform multiple functions across different wellhead equipment types, eliminating the need for manufacturer-specific tools while maintaining reliable operation.
Solution Approach 2:
The interface tool is segmented into distinct functional components including engagement elements (dogs, keys, splines), sealing elements, and driving elements. These segmented components can be independently positioned or configured to match different wellhead equipment types. The stabilization elements are also segmented to provide targeted stabilization without requiring a completely different tool for each configuration.
2Adaptability or versatility
If multiple tool sets are manufactured for different wellhead equipment, then adaptability is improved, but loss of substance and cost increase
Solution Approach 1:
The interface tool is designed as a universal device that can adapt to different tubing hanger and internal tree cap configurations through selectable engagement elements. Instead of manufacturing separate tool sets for each wellhead equipment type, a single tool with multiple configurable elements provides the necessary adaptability, thereby reducing material consumption and manufacturing costs.
Solution Approach 2:
The engagement elements (dogs, keys, splines) are designed to be selectively positionable within the interface tool, allowing the tool to nest different engagement configurations within a single device structure. This nesting approach allows one tool to accommodate multiple wellhead equipment types without requiring separate dedicated tools for each type.
Data Source
AI summary
A well intervention tool includes a Christmas tree (XT) adapter connected to an XT, a tubing hanger interface tool aligned axially within the adapter mandrel, and a stab connected to the tubing hanger interface tool, the stab contacting at least one internal component of the XT. The XT includes an XT mandrel. The XT adapter includes an adapter mandrel positioned above the XT mandrel. A system with a well intervention tool includes a blowout preventer (BOP). A system also includes a BOP-integrated adapter that includes a BOP and an XT adapter.