Riser Hang-Off Collar for Installation Without Pipe Disassembly
A Riser Hang-Off Collar is a critical load-bearing component in deepwater oil and gas development, serving as the key connection between subsea wellheads and offshore platforms or FPSOs (Floating Production, Storage and Offloading units). It plays an indispensable role in maintaining the safety and stability of drilling and production operations, supporting the weight of riser strings while withstanding extreme deepwater conditions.
Industry Pain Point: The Drawbacks of Traditional Riser Hang-Off Collars
Traditional integral Riser Hang-Off Collars have long posed challenges for offshore operators. These components require complete disassembly of riser strings before installation—a time-consuming, labor-intensive, and high-risk process. This not only extends offshore operation cycles by days but also increases costs, particularly in ultra-deepwater and harsh sea environments where weather delays and diver safety are major concerns.
Innovation Highlight: Split-Type Riser Hang-Off Collar’s Key Advantages
We newly launched split-type Riser Hang-Off Collar addresses these pain points with a revolutionary two-piece forged steel design. Key features and benefits include:
1. No Pipe Disassembly Required: The split structure allows direct installation around the riser, eliminating the need to take apart riser strings. This reduces installation time from days to just a few hours, cutting operational downtime by up to 70%.
2. Enhanced Safety: Minimizes underwater diver intervention, a critical improvement for deepwater operations where diver safety is paramount. The design also includes precision-machined sealing components and stress-relief features to prevent seawater erosion and reduce stress concentration.
3. Stringent Standard Compliance: The Riser Hang-Off Collar has passed comprehensive testing—including full-scale fatigue validation, finite element analysis, and pressure testing—meeting international standards such as API 16Q, ISO 13628-7, and DNV-ST-F201.
4. Ultra-Deepwater Capability: With a maximum load-bearing capacity supporting riser strings in water depths of up to 1,780 meters, it is ideal for ultra-deepwater fields like Brazil’s BC-10 field.
5. Versatility: Compatible with various riser types, including drilling risers, production risers, and steel lazy-wave risers, adapting to diverse offshore operation scenarios.
Market Relevance: Meeting the Demand for Advanced Deepwater Components
As the global offshore industry accelerates its shift toward deepwater and ultra-deepwater development, the demand for advanced riser components continues to grow. The split-type Riser Hang-Off Collar not only addresses unmet industry needs but also supports the sector’s goals of improving operational efficiency and reducing environmental risks. The product is now available for global orders, with customization options to suit specific project requirements—including sour service environments and varying riser diameters.
