Drift-off warning limits for dynamically positioned FPSO and Deepwater Artificial Seabed (DAS) coupling system

海床 海洋工程 海底管道 地质学 水下 遥控车辆 水深测量 海洋岩土工程
作者
Yue Han,Xingwei Zhen,Yi Huang
出处
期刊:Ocean Engineering [Elsevier]
卷期号:237: 109662-
标识
DOI:10.1016/j.oceaneng.2021.109662
摘要

Abstract The new Deepwater Artificial Seabed (DAS) system is developed for dynamically positioned Floating Production, Storage and Offloading (FPSO) vessel, with a focus on important issues of well access and riser design. Nonetheless, FPSO may drift off due to dynamic positioning (DP) system failures and ocean environment loads, and thus loses the capability to maintain position, which poses significant threats to the structural integrity of the DAS system. This study is committed to establishing criteria of drift-off warning limits for dynamically positioned FPSO and DAS coupling system. The fully-coupled dynamic model of the FPSO and DAS coupling system is established. On this basis, a drift-off analysis method is proposed in the determination of drift-off warning limits of FPSO. The effectiveness of the method is verified in the case study of the coupled FPSO-DAS system. Further, the correlative influence factors, consisting of the wave, wind and current conditions, different flexible jumper lengths, FPSO offsets as well as artificial seabed locations, are systematically investigated. The results demonstrate the effectiveness of fully-coupled analysis of the FPSO and DAS system for warning limits determination. The warning limits, consisting of point of disconnection (POD), preparation and initiation point of emergency disconnection sequence (EDS), are mainly located at the near end and far end relative to the artificial seabed due to different failure sites of flexible jumper. The safe area of FPSO is in a “butterfly” shape due to the design characteristics of the DAS system. It is noteworthy that three main aspects of warning limits can be affected by the corelative influence factors, i.e. the angle and radius coordinates of the warning limits as well as the time to failure. The wave height, environmental load direction and flexible jumper length have the most significant effects on the time to failure, the angle and radius coordinates of the warning limits respectively. This study provides a useful tool for the decision-making of DP operations in a drift-off scenario, and contributes to the safety control of the DP operation in the production phase.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI

祝大家在新的一年里科研腾飞
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
化学纯蓝色完成签到,获得积分10
1秒前
1秒前
华仔应助hao采纳,获得10
1秒前
传奇3应助朵拉采纳,获得10
2秒前
Yiy发布了新的文献求助10
3秒前
李健的小迷弟应助MM采纳,获得10
3秒前
发发发发布了新的文献求助10
5秒前
高高帅哥发布了新的文献求助10
5秒前
阿珩完成签到,获得积分10
5秒前
上官若男应助sxmt123456789采纳,获得10
5秒前
chen应助Andy采纳,获得10
6秒前
gocha完成签到,获得积分10
6秒前
7秒前
sylviawj发布了新的文献求助10
7秒前
阿珩发布了新的文献求助10
8秒前
优秀爆米花完成签到,获得积分10
9秒前
dominic12361发布了新的文献求助10
9秒前
月亮moon发布了新的文献求助20
10秒前
13秒前
耍酷艳一完成签到 ,获得积分10
13秒前
乐乐应助yukino采纳,获得10
13秒前
发发发完成签到,获得积分20
13秒前
调皮万怨发布了新的文献求助10
15秒前
宇文向雪发布了新的文献求助10
16秒前
万卷神完成签到,获得积分10
16秒前
gocha发布了新的文献求助10
17秒前
高高帅哥完成签到,获得积分10
17秒前
17秒前
18秒前
19秒前
万卷神发布了新的文献求助10
20秒前
lxy发布了新的文献求助10
20秒前
从容芮应助啦啦啦采纳,获得10
21秒前
anhao发布了新的文献求助10
22秒前
月亮moon完成签到,获得积分10
23秒前
闹南南发布了新的文献求助30
23秒前
晞望完成签到,获得积分10
24秒前
24秒前
songxidong完成签到,获得积分10
27秒前
27秒前
高分求助中
Востребованный временем 2500
Les Mantodea de Guyane 1000
Very-high-order BVD Schemes Using β-variable THINC Method 950
Field Guide to Insects of South Africa 660
Product Class 33: N-Arylhydroxylamines 300
Machine Learning in Chemistry 300
Experimental research on the vibration of aviation elbow tube by 21~35 MPa fluid pressure pulsation 300
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 细胞生物学 免疫学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3387713
求助须知:如何正确求助?哪些是违规求助? 3000289
关于积分的说明 8790795
捐赠科研通 2686306
什么是DOI,文献DOI怎么找? 1471598
科研通“疑难数据库(出版商)”最低求助积分说明 680398
邀请新用户注册赠送积分活动 673160