摘要 ：作为改良型的钢质悬链线立管(Steel Catenary Riser，SCR)，懒波型立管(Lazy Wave Riser, LWR) 和陡波型立管(Steep-Wave Riser，SWR) 在深水油气开发中的应用越来越广泛。

2000年12月11日 · Lazy wave risers (LWRs) are designed with equidistant buoyancy blocks attached in the lower half of the riser, allowing the riser to take on an arch shape under the buoyancy forces provided by buoyancy blocks.

2016年12月6日 · Lazy wave risers are an attractive solution for tie-backs which need lighter additional payload, but careful attention to the routing helps to keep them away from adjacent lines by using steeper top angles and lower sag and arch bends.

2008年8月31日 · Shell plans to install the first S-shaped steel catenary risers (SSCR) or steel lazy-wave risers to a weathervaning FPSO on its BC-10 field in 1,780 m (5,840 ft) water depth off Brazil.

Lazy wave riser A lazy wave configuration is similar to catenary but this option has mid-water support provided by distributed buoyancy modules. 'Lazy' means that the riser centreline is near parallel with the seabed on contact while 'wave' describes the line shape as a result of the buoyancy modules.

2021年5月15日 · Lazy wave risers can mitigate the kinematic coupling between floating structure and riser touchdown zone (TDZ), so as to improve its fatigue life. However, due to the introduction of buoyancy blocks, nonlinear dynamic response …

2023年3月11日 · The dynamic response of the steel lazy wave riser (SLWR) subjected to the internal solitary wave is a key to assessing its application feasibility. The innovation of this paper is to study the dynamic response properties of the SLWR with large deformation characteristics under internal wave excitation.

2024年10月1日 · Optimize a double-waveform steel lazy wave riser. Conduct the riser dynamics by a self-developed fully coupled platform/mooring/riser program. Propose an improved PSO involved with both continuous and discrete design variables. Integrate FNNs into the optimization algorithm to replace the time-consuming FE simulations.

•SLWR: Multiple wells tied back to a large OD riser reduces costs •Reel-lay costs: Flexibles (20-30%) > SLWR •Hybrid riser costs are much greater than other options

2020年8月1日 · Steel lazy wave risers (SLWRs) can be used as an effective deepwater oil and gas exploitation system production as their low cost and good reliability. The resultant top loads and fatigue life are also significantly improved in comparison with to …