Dual Bit Run Bushing System for Wellhead Protection
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Solution Overview
Problem
Current bore protection systems in downhole exploration operations require multiple trips to install and remove bushings, increasing costs and time due to the need for separate installations, which can damage wellbore components.
Innovation Solution
A system comprising removable wellhead and treehead bushings with a tubular installation and removal tool that allows for simultaneous or reduced trips to install and remove bushings, protecting wellbore components by extending along the wellhead and treehead areas, respectively, with the tubular tool facilitating axial movement for bushing engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate trips are used to install and remove bushings, then bushing protection function is achieved, but operational time and cost increase significantly
Solution Approach 1:
The patent combines the installation and removal operations of multiple bushings into a single trip by using a master bushing that integrates several individual bushings. This allows all bushings to be installed and removed simultaneously, eliminating the need for separate trips for each bushing and significantly reducing operational time while maintaining the protective function.
Solution Approach 2:
The master bushing serves multiple functions: it protects multiple engagement features simultaneously, acts as a single removable unit for streamlined operations, and provides universal protection across different wellbore components. This multi-functionality allows one bushing structure to replace what would traditionally require multiple separate bushings and operations.
2Reliability
If multiple separate bushings are installed for different engagement features, then comprehensive protection is achieved, but device complexity increases
Solution Approach 1:
The patent merges multiple individual bushings into a single master bushing structure that protects multiple engagement features simultaneously. This consolidation reduces the number of separate components from the wellbore, simplifying the overall system while maintaining comprehensive protection across all engagement features through the integrated design.
3Reliability
If bushings are made removable for protection during tool runs, then component integrity is maintained, but additional trips are required increasing operational cost
Solution Approach 1:
The master bushing combines multiple removable bushings into a single removable unit that can be installed and removed in one trip. This maintains the protective function and component integrity during tool runs while eliminating the need for additional trips that would be required if multiple separate bushings were removed individually, thereby improving operational efficiency.
Data Source
AI summary
A system includes a housing section positioned within a wellhead area, the housing section also includes a removable wellhead bushing arranged over at least one engagement feature of the housing. The system also includes a Christmas tree including a treehead area, the treehead area includes a removable treehead bushing arranged over at least one engagement feature of the treehead area. The system further includes a tubular extending through both the wellhead bushing and the treehead bushing, wherein the tubular includes an installation and removal tool adapted to remove at least one of the wellhead bushing and the treehead bushing during wellbore operations.