Analysis of Configuration of Stinger Angle with Depth Variation During Installation On Pipe Diamater 20" in Banyu Urip, Bojonegoro

Imam Rochani, Juniavi Dini Kumala Putri, Handayanu Handayanu
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Abstract

The selection of subsea pipeline construction methods used depends on the environmental conditions and behavior of the pipe installation system which acquires a variety of loads during installation and may the result in failure. In this case the required angle stinger configuration is in accordance with the criteria to avoid overstress and local buckling on the pipe during installation, the variation of the depth of 15 meters, 18 meters, 20.65 meters, 21.25 meters and 22.25 meters can help analysis the stress on the pipe in each case. The pipeline is 23.4 km north of Bojonegoro. From the results of the analysis, it is known that the configuration of stinger angles used during installation for each water depth is 15 m with stinger angle 8.88 degree, 18.65 m stinger angle 8.88 degree, 20.65 m stinger angle 8.88 degree, 21.25 m stinger angle 8.88 degree and 22.25 m stinger angle 8.88 degree. The result of pipe stress on the overbend area has a value of 85.13% SMYS or 352.42 Mpa when the direction of wave comes 90 degrees, while the sagbend area of the pipe has a maximum stress of 51.01% SMYS or 211.2 Mpa when the direction of wave comes 180 degrees. Local buckling check results in all conditions show safe results during the installation process.
Bojonegoro Banyu Urip管径20”安装时推力角随深度变化的配置分析
海底管道施工方法的选择取决于环境条件和管道安装系统的行为,管道安装过程中会受到各种载荷,并可能导致失效。在这种情况下,为避免管道在安装过程中产生过大应力和局部屈曲,所要求的角度推力杆配置符合标准,15米、18米、20.65米、21.25米和22.25米的深度变化可以帮助分析每种情况下管道的应力。该管道位于Bojonegoro以北23.4公里处。从分析结果可知,各水深安装时使用的推力杆角配置为15 m,推力杆角分别为8.88°、18.65 m推力杆角8.88°、20.65 m推力杆角8.88°、21.25 m推力杆角8.88°和22.25 m推力杆角8.88°。当波浪方向为90°时,管道在过弯处的应力值为85.13% SMYS或352.42 Mpa,而当波浪方向为180°时,管道在下弯处的最大应力值为51.01% SMYS或211.2 Mpa。在安装过程中,所有条件下的局部屈曲检查结果都显示出安全的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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