A numerical study on the installation configuration design of compliant vertical access riser (CVAR) in deepwater
摘要:In oil and gas transportation, the compliant vertical access riser (CVAR) system conducts economic and operational advantages due to its special configuration. In this paper, the static performance of the CVAR is studied by an efficient numerical method. According to the unique configuration of the CVAR, the mathematical model is established based on minimum total potential energy principle. The equilibrium equations are discretized by finite difference method and then solved by Newton-Raphson technique. The accuracy of the numerical method is verified by OrcaFlex software. Detailed parametric analysis is carried out based on practical engineering requirements. The effects of buoyancy section's configuration including buoyancy factor, buoyancy section's length and buoyancy section's location, and external environmental factors including wellhead offset distance, water depth and current velocity on installation shape and mechanical properties of the CVAR are analyzed. The research shows that the presented numerical method has good applicability and flexibility for the early installation configuration design of marine risers which have no touchdown section but only one touchdown point and are equipped with multiple buoyancy blocks subjected to forces of different directions and magnitudes, such as CVARs. ? 2022 Elsevier Ltd
ISSN号:0951-8339
卷、期、页:卷87
发表日期:2023-01-01
影响因子:0.000000
期刊分区(SCI为中科院分区):二区
收录情况:EI(工程索引)
发表期刊名称:Marine Structures
通讯作者:王树江,陈磊磊,高磊,王树江
第一作者:顾继俊
论文类型:期刊论文
论文概要:王树江,顾继俊,陈磊磊,高磊,王树江,A numerical study on the installation configuration design of compliant vertical access riser (CVAR) in deepwater,Marine Structures,2023,卷87
论文题目:A numerical study on the installation configuration design of compliant vertical access riser (CVAR) in deepwater