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ITS » Paper and Presentation » Teknik Kelautan
Posted by fandikaaqsa@its.ac.id at 12/04/2016 13:27:52  •  716 Views


OPTIMIZATION OF STINGER ANGLE CONFIGURATION AND WATER DEPTH WITH LOCAL BUCKLING CHECK

OPTIMASI KONFIGURASI SUDUT STINGER DAN KEDALAMAN LAUT DENGAN LOCAL BUCKLING CHECK

Author :
PUTRI, DESAK MADE AYU PRADNYA ( 4310100019 )




ABSTRAK

Semakin meningkatnya eksplorasi minyak dan gas maka akan semakin dibutuhkannya mode transportasi pengangkut minyak dan gas. Sistem perpipaan merupakan salah satu mode transportasi minyak dan gas yang banyak digunakan dikarenakan lebih efisien dan lebih efektif. Pada saat proses instalasi ada 2 kategori yang harus dianalisa yaitu overbend dan sagbend. Analisa dilakukan dengan bantuan OFFPIPE untuk menghitung besarnya tegangan Von Mises yang bekerja pada saat proses laying dengan variasi kedalaman dan sudut stinger. Setelah didapatkan tegangannya maka akan dihitung local buckling yang terjadi pada daerah sagbend dan overbend pada saat proses laying. Studi kasus yang digunakan dalam tugas akhir ini adalah proyek saluran pipa baru EPCI for MRA-MMJ dari PT. PHE ONWJ. Variasi sudut stinger yang digunakan adalah 6.66 8.88 11.1 13.32 15.54 derajat dan masing-masing case memiliki perbedaan pada kedalaman laut mulai case 1-9 yaitu 14.935 15.979 17.023 18.067 19.11 20.155 21.199 22.243 dan 23.287 meter. Dari hasil penelitian ini didapatkan hasil bahwa sudut optimal adalah sudut 11.1 derajat. Selain itu dapat dikatakan bahwa pipeline tidak mengalami local buckling karena memenuhi premissible combination dari code DNV 1981.


ABSTRACT

With the increase in oil and gas exploration the mode of transportation of oil and gas transporters will be needed. Piping system is one mode of transportation of oil and gas are widely used due to more efficient and more effective. At the time of the installation process there are two categories to be analyzed are overbend and sagbend. The analyzes were performed with the help of OFFPIPE to calculate Von Mises tension that works on the laying process with the variation of the depth and angle of the stinger. When the voltage has obtained it will calculated the local buckling that occurs in the overbend and sagbend area during the laying process. The case study used in this thesis is a new pipeline project EPCI for MRA-MMJ of the PT. PHE ONWJ. Variations stinger angle that used are 6.66 8.88 11.1 1332 1554 degrees and each case has a difference in water depths ranging case 1-9 which are 14.935 15.979 17.023 18.067 19.11 20.155 21.199 22.243 and 23.287 meters. From the results of this study showed that the optimum angle is the angle of 11.1 degrees. Moreover it can be said that the pipeline did not experience local buckling due to meet permissible combination of DNV code 1981.



KeywordsLaying; Stress; Stinger; Overbend; Sagbend; Local buckling
 
Subject:  Jaringan pipa di bawah air
Contributor
  1. Prof. Ir. Daniel M. Rosyid, Ph.D., M.RINA
  2. Ir. Hasan Ikhwani, M.Sc.
Date Create: 12/04/2016
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-paper-43021160008822
Collection ID: 43021160008822
Call Number: RSKe 621.867 2 Put o


Source
Paper and Presentation of Ocean Engineering, RSKe 621.867 2 Put o, 2014

Coverage
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Copyright @2016 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-paper-41083-4310100019-paper.pdf - 774 KB
  2.  ITS-paper-41083-4310100019-presentation.pdf - 1133 KB




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