Modular Top Drive with Interchangeable Pipe Handler Module
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Solution Overview
Problem
Conventional top drive systems in oil and gas well drilling are prone to single-point failures, leading to significant downtime due to their critical path status, as they lack redundancy and efficient maintenance processes, which can stall the entire drilling operation when repairs or maintenance are needed.
Innovation Solution
A modular top drive system with removable and interchangeable modules, including motor, pipe handler, and cooling components, allowing for quick replacement and parallel maintenance activities, thereby reducing downtime and enabling continued operation even if one module fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional top drive system is used, then the drilling operation can be performed with a single integrated unit, but the system is prone to single-point failures and causes significant downtime when repairs or maintenance are needed
Solution Approach 1:
The top drive system is divided into separate functional modules (motor module, pipe handler module, cooling module) that can be independently removed and replaced. This segmentation allows maintenance of one module without shutting down the entire system, reducing downtime and improving reliability.
Solution Approach 2:
The patent implements a system where failed or maintenance-needed modules can be quickly removed and replaced with backup modules. The removed modules can be recovered for repair or replacement, enabling continuous operation while maintaining redundancy.
2Adaptability or versatility
If the top drive is positioned on the critical path, then it can perform all necessary drilling functions, but any delay in maintenance or repair stalls the entire drilling operation
Solution Approach 1:
By segmenting the top drive into independent modules, the system allows selective replacement of only the failed module rather than the entire unit. This maintains functional capability while minimizing disruption to the critical path, preserving drilling efficiency.
Solution Approach 2:
The patent employs backup modules that are prepared in advance and stored off the critical path. When a module fails, the backup can be immediately deployed without delay, ensuring continuous operation and maintaining productivity.
3Ease of repair
If diagnostics and maintenance are performed on the critical path, then the top drive can be serviced, but additional delay occurs before repairs can begin
Solution Approach 1:
The modular design allows diagnostics and maintenance to be performed on individual modules independently of the critical path. Modules can be removed from the critical path for servicing, eliminating the delay that would otherwise occur while keeping the rest of the system operational.
Solution Approach 2:
The patent extracts the maintenance process from the critical path by allowing modules to be removed and serviced separately. This extraction enables diagnostics and repairs to occur without stalling the drilling operation, reducing maintenance delay.
4Reliability
If redundancy is added to the top drive system, then downtime from single-point failures is reduced, but the device complexity increases
Solution Approach 1:
The modular architecture provides redundancy at the module level rather than requiring redundancy of the entire top drive system. This segmented approach achieves reliability improvement with less overall complexity, as only individual modules need backups rather than the complete system.
Solution Approach 2:
The patent implements redundancy locally at each module level (motor, pipe handler, cooling) rather than globally at the system level. This localized redundancy approach improves reliability while minimizing the increase in overall system complexity.
Data Source
AI summary
A top drive system with a plurality of top drive modules, which are configured to be quickly exchanged. The top drive modules may include any or all of the following: a main body module, a gearbox module, a drive motor module, a pipe handler module, an upper fluid module, a lower well control valve module, a block interface module, a retract system interface frame module, a cooling system module, a work platform guard module, and a quill saver sub module. Alternatively, the top drive may comprise a first top drive and a second top drive which are configured to be quickly exchanged.