Nadia Nooer, Mora Afra (2020) Analisis Pipeline Walking Dan Lateral Buckling Pada Pipa 20” Di Selat Madura Field. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Salah satu mode pengangkutan gas bumi paling banyak digunakan adalah pipeline. Pipa yang diletakan di dasar laut pada laut dalam memiliki suhu dan tekanan yang tinggi selama masa operasi akibat aliran fluida dalam pipa. Selain itu juga pipa bawah laut sering mengalami kondisi start up dan shut down . Start up menyebabkan ekspansi menuju cold end, sementara saat shut down pipa mengalami penyusutan. Peristiwa ekspansi dan penyusutan ini tejadi terus menerus selama beberapa siklus dan menyebabkan pipa berjalan menuju cold end. Peristiwa berjalannya pipa ini disebut pipeline walking. Tugas akhir ini bertujuan untuk mengetahui ketahanan pipa terhadap fenomena lateral buckling dan analisis pipeline walking pada pipa sepanjang 27 km dengan diameter 20 inch yang disebabkan tekanan dan suhu yang tinggi. Dengan analisis expansion yang dilakukan dapat diketahui bahwa jarak anchor point dengan hot end yang terbentuk adalah 1162 m dengan ekspansi yang terjadi sebesar 134 m dan jarak anchor point dengan cold end adalah 0.199 m dengan ekspansi sebesar 0.003 m.. Dari hasil analisis dapat diketahui bahwa pipa rentan terhdap Lateral Buckling dan pipa tidak rentan terhadap pipeline walking .Dari analisis berdasarkan software AUTOPIPE diketahui pipa rentan mengalami displacement atau perpindahan nodes dengan displacement maksimum sebesar 2796 mm pada KP 2 ==================================================One of the most widely used procedure of transporting natural gas is through pipeline. Pipeline placed on the seabed in the deep sea with high internal temperatures and pressures during operation due to fluid flow in the pipeline. In addition, subsea pipelines often experience start up and shut down conditions. Start up causes expansion to the cold end, while the shut down pipe experiences shrinkage. These expansion and shrinkage events occur continuously for several cycles and cause the pipe to run into the cold end. This occuring phenomenon is called pipeline walking. This final project aims to determine the susceptibility of the pipe to the phenomenon of lateral buckling and pipeline walking analysis on the 27 km long pipe with ] 20 inches diameter caused by high pressure and temperature. With the expansion analysis conducted it can be seen that the distance of the anchor point from hot end is 1162 m with an expansion that occurs at 134 m and the distance of the anchor point from the cold end is 0.199 m with an expansion of 0.003 m .. From the analysis results it can be seen that the pipe susceptible to lateral buckling and the pipe is not susceptible to pipeline walking. From the analysis based on AUTOPIPE software it is known that the pipe is susceptible to displacement or displacement of nodes with a maximum displacement of 2796 mm on KP 2
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKe 621.867 2 Noo a-1 |
| Uncontrolled Keywords: | Pipeline Walking, Tekuk Lateral, Ekspansi, Displacement, Pipeline. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA656.2 Buckling |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Mora Afra Nadia Nooer |
| Date Deposited: | 20 Jun 2024 11:04 |
| Last Modified: | 20 Jun 2024 11:04 |
| URI: | http://repository.its.ac.id/id/eprint/73201 |
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