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Method and apparatus for connecting a flowline to a subsea structure and laying the flowline from the subsea structure
Method and apparatus for connecting a flowline to a subsea structure and laying the flowline from the subsea structure
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机译:用于将流水线连接到海底结构并从海底结构铺设流水线的方法和设备
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摘要
A method and apparatus are provided for connecting an offshore pipeline or flowline bundle to a deepwater subsea structure and then laying away from said structure. The pipeline or flowline bundle is deployed vertically from a pipelay vessel to make a hinged connection with the subsea structure. The connection operation is facilitated by a flowline connection tool attached to the pipeline or flowline bundle and designed to be inserted into a funnel located either centrally or to one side of the subsea structure. The connection procedure consists of landing and securing the flowline connection tool onto the subsea structure, then hinging over and connecting the pipeline or flowline bundle to the subsea structure as the pipeline or flowline bundle is laid on the seafloor beginning at the subsea structure.
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