Abstract
This article presents a new operational approach for mudline wellheads, aimed at transforming exploration wells into development wells, thus reducing costs and construction time in marginal oil fields. It includes a fatigue life analysis of mudline wellhead systems and tie-back systems at different platform heights (20 m and 100 m). The study develops mechanical models to assess structural integrity under environmental loads such as wind, waves, and currents. Stress concentrations, especially at connection points, are analyzed to determine fatigue life. The study not only establishes the service life for both water depth scenarios but also offers structural optimization suggestions for the tie-back system. Incorporating marine environmental data, it provides a comprehensive strength and fatigue analysis, ensuring the structural safety of the mudline wellhead and tie-back system. This research underpins the economic viability of the mudline wellhead tie-back operation mode, contributing significantly to offshore drilling design, efficiency, and sustainability, marking progress in offshore engineering.
Published Version
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