Integrated RCD With Upward Choke Modules
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Solution Overview
Problem
Current pressure control systems in drilling and completion operations have low integration levels, complex site layouts, long installation and debugging periods, high costs, and difficult maintenance due to functionally independent devices connected through long high-pressure lines.
Innovation Solution
A multifunctional rotating control device (RCD) with integrated choke control modules and a compact structure, where two choke control modules are connected to the RCD assembly and extend upward, allowing for redundancy in case of module failure and simultaneous operation to ensure continuous drilling and normal flow capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If key devices (RCD, control manifold, metering device) are provided separately and connected through long high pressure lines, then functional independence and system reliability are improved, but device complexity, site layout complexity, and installation difficulty increase
Solution Approach 1:
The patent integrates the control manifold and metering device into the RCD assembly, merging previously separate key devices into a single integrated unit. This reduces the number of components and connections while maintaining functional independence through modular design, thereby reducing system complexity without compromising reliability
Solution Approach 2:
The integrated RCD assembly performs multiple functions (pressure control, flow measurement, choke control) within a single device, eliminating the need for separate dedicated devices for each function. This multi-functionality reduces the overall number of components and simplifies the system layout
2Reliability
If key devices are connected through long high pressure lines, then functional independence is achieved, but installation time and debugging period increase
Solution Approach 1:
By merging the control manifold and metering device into the RCD assembly, the patent eliminates long high pressure lines and reduces the number of connections required. This integration significantly reduces installation time and debugging period while maintaining functional independence through modular component design
3Adaptability or versatility
If key devices are provided separately and connected through long high pressure lines, then system functionality is achieved, but maintenance difficulty and cost increase
Solution Approach 1:
The integration of control manifold and metering device into the RCD assembly reduces the number of separate components that require maintenance. The modular design allows for easier maintenance and repair by reducing the complexity of the system architecture and minimizing the number of connections that may fail
Solution Approach 2:
The patent employs modular segmentation within the integrated RCD assembly, allowing individual modules (control manifold, metering device, choke control modules) to be independently accessed and maintained while remaining part of the unified structure, thereby improving maintenance ease
4Area of stationary object
If choke control modules are integrated onto the RCD assembly extending upward, then occupied space and structure compactness are improved, but manufacturing complexity increases
Solution Approach 1:
The choke control modules are arranged extending upward in the direction of the bore through hole, utilizing the vertical dimension to organize components. This dimensional arrangement achieves compact horizontal footprint while managing manufacturing complexity through standardized vertical stacking and integration
Data Source
AI summary
A multifunctional rotating control device (RCD) includes an RCD assembly, a multi-way cross, and choke control modules. The RCD assembly includes a body and a rotating sealing assembly, where a bore through hole, two side outlets, and a straight-through outlet are formed in the body. The rotating sealing assembly is provided in the bore through hole, a straight-through cut-off valve is provided at the straight-through outlet, and there are two choke control modules. The two choke control modules are respectively connected to the two side outlets and the multi-way cross, and a side choke extends upward in a direction of the bore through hole. The two choke control modules are integrated onto the RCD assembly, and extend upward in the direction of the bore through hole.