Tubular Wellhead Assembly Integrating Tree Components
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Solution Overview
Problem
Current well systems require separate components for wellheads and trees, leading to increased hardware requirements and complex operations, especially in offshore applications where space and installation costs are high.
Innovation Solution
A tubular wellhead assembly that integrates the functionalities of a traditional wellhead and tree into a single unit, including valves, chokes, and sensors, reducing hardware needs and simplifying operations by combining these components within a tubular structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate wellhead and tree components are used, then each component can be independently maintained and replaced, but the hardware requirements and operational complexity increase
Solution Approach 1:
The patent combines the wellhead and tree into a single integrated tubular wellhead assembly. The tree components (valves, chokes, sensors) are incorporated within the wellhead structure itself, eliminating the need for separate mounting and reducing the number of field assembly steps. This merging directly reduces hardware requirements while maintaining installation ease.
Solution Approach 2:
The tubular wellhead assembly performs multiple functions within a single structure: it provides the wellhead housing, contains the tubing hanger, incorporates valve assemblies, includes choke devices, and integrates sensor packages. This multi-functionality eliminates the need for separate dedicated components for each function, reducing overall hardware requirements.
2Reliability
If separate wellhead and tree components are used, then component independence is maintained, but installation time and costs increase
Solution Approach 1:
By integrating all tree components within the wellhead assembly during manufacturing, the system eliminates time-consuming field assembly operations. The pre-integrated assembly is installed as a single unit, dramatically reducing installation time while maintaining system reliability through factory-tested component interactions.
Solution Approach 2:
The tree components are pre-assembled and integrated into the wellhead structure during manufacturing before field installation. This preliminary action ensures proper alignment, sealing, and component compatibility are established in the controlled manufacturing environment, eliminating time-consuming field adjustments and reducing installation time.
3Adaptability or versatility
If traditional wellhead and tree components are used separately, then standardization is maintained, but operational simplicity is reduced
Solution Approach 1:
The integrated wellhead assembly provides a unified control structure where all tree functions (valves, chokes, sensors) are accessible through a single assembly interface. This simplifies operations by reducing the number of separate components that need to be monitored and maintained, while the modular design maintains adaptability for different well configurations.
4Adaptability or versatility
If separate wellhead and tree components are used, then component flexibility is maintained, but space requirements and installation costs increase
Solution Approach 1:
The integration of tree components within the wellhead assembly consolidates the physical footprint of the entire system. All valves, chokes, and sensors are housed within the wellhead structure, eliminating the need for separate surface mounting space and reducing the overall installation area required for offshore or onshore applications.
Data Source
AI summary
A wellhead assembly of a well system for installation in a wellbore, the wellhead assembly having a longitudinal axis and including a wellhead housing including a central passage defined by an inner surface, a hanger configured to be received within the passage of the wellhead housing and couple to the inner surface of the housing, a tubular string configured to be received in the passage of the wellhead housing, wherein the tubular string includes a passage, a choke coupled to the tubular string and configured to control a fluid flow through the passage of the tubular string, and a wellhead connector configured to releasably couple to an end of the wellhead housing and including a first passage in fluid communication with passage of the tubular string when the wellhead connector is coupled to the wellhead housing.