Oil and Natural Gas Piping Technical Study of Offshore Platform Large Displacement Trestle Bridge
Trestle bridge is often used between offshore platforms to realize resource sharing,optimize equipment and facilities,and greatly save investment cost.Affected by the water depth and other conditions in the sea area,the relative displacement between platforms is generally very large,especially in Wenchang sea area,the water depth is nearly 120 meters,and the relative displacement between platforms is even as high as 1.6 meters.This has a great impact on the pipeline laid on the trestle bridge,and brings great challenges to the pipeline design,especially the whole hard pipe scheme.In order to solve the piping difficult problem of deep-water large displacement trestle bridge,this paper will combine with the design engineering case of Wenchang a oilfield trestle bridge,analyze the root of the problem in an all-round way,through the scheme optimization,stress analysis of the pipeline and other ways,and finally use the combination of flexible and hard pipe scheme to solve the adverse impact of additional displacement,so as to ensure the safe operation of the trestle bridge pipeline.The oilfield trestle bridge has been work safety for three years since it was put into operation.
large displacement trestle bridgepiping difficult problemthe combination of flexible and hard pipe schemestress analysis
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