23 Mooring Analysis During Shorepull [PDF]

Citation preview

PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN DOCUMENT NO:



REV: 0



PLB MOORING ANALYSIS DURING SHOREPULL



ISB-ENG-X-CAL-010-W-A4



Hal1 of 25



PEMILIK



: PT PERTAMINA (PERSERO)



KONTRAKTOR



: PT WIJAYA KARYA (PERSERO) TBK



NAMA PROYEK



: PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN



LOKASI



: INDRAMAYU – JAWA BARAT



NO KONTRAK



:020/10000/2019-S0



0



1 Feb 2020



IFA



MKS



AY



A



24Oct 19



IFR



VTI



ALK/BRM



REV. DATE



DESCRIPTION



PREP



CHECK PT WIKA



SM APPR



CHECK



APPR



PT PERTAMINA



PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN DOCUMENT NO: ISB-ENG-X-CAL-010-W-A4



PLB MOORING ANALYSIS DURING SHOREPULL



REVISION SHEET No. Rev. Page



Date



Description



REV: 0 Hal2 of 25



PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN DOCUMENT NO: ISB-ENG-X-CAL-010-W-A4



PLB MOORING ANALYSIS DURING SHOREPULL



REV: 0 Hal3 of 25



TABLE OF CONTENTS 1. INTRODUCTION ................................................................................................................................ 4 1.1 General..................................................................................................................................... 4 1.2 Objective .................................................................................................................................. 4 1.3 Definition of Terms .................................................................................................................. 4 2. REFERENCES ..................................................................................................................................... 5 2.1 International Codes and Standards.......................................................................................... 5 2.2 Project Documents and Others Reference .............................................................................. 5 3. RESULT SUMMARY AND RECOMMENDATION ................................................................................. 5 3.1 Summary .................................................................................................................................. 5 4. DESIGN DATA ................................................................................................................................... 7 4.1 Vessel Details and Conditions .................................................................................................. 7 4.2 Mooring Equipment ................................................................................................................. 7 4.3 Anchor Pattern Setting............................................................................................................. 9 5. Environmental Data ....................................................................................................................... 10 6. ACCEPTANCE CRITERION ................................................................................................................ 11 6.1 Mooring Lines Tension Requirement ..................................................................................... 11 6.2 Anchor Holding/Uplifting ....................................................................................................... 11 7. ANALYSIS METHODOLOGY ............................................................................................................. 12 7.1 Description of Computer Program "MOSES" ......................................................................... 12 Figure 4 MOSES Coordinate System ............................................................................................. 14 8. MOORING ASSESSMENT CRITERIA ................................................................................................. 14 8.1 All Lines Intact Condition ....................................................................................................... 15 8.2 One Line Damaged Condition ................................................................................................ 15 9. APPENDICES ................................................................................................................................... 19 Appendix A: Anchor Pattern Drawing ................................................................................................. 20 Appendix B: “MOSES” Model Plots ..................................................................................................... 21 Appendix C: ALEA KEREN General Specification ................................................................................. 22 Appendix D: Acceptance Criterion (Extracted from API RP 2SK) ........................................................ 23 Appendix E: Anchor Line Characteristics ............................................................................................ 24 Appendix F: "MOSES" Outputs............................................................................................................ 25



PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN DOCUMENT NO: ISB-ENG-X-CAL-010-W-A4



PLB MOORING ANALYSIS DURING SHOREPULL



REV: 0 Hal4 of 25



1. INTRODUCTION 1.1 General Implementation of government programs related to kerosen replaced with LPG at the Java Island. Therefore, PT.Pertamina (Persero) must develop facilities as supporting distribution process. PT. Pertamina (Persero) is planning to build a dock facility with a vessel leaning maximum capacity of 25000 DWT, for tanker facilities that will supply LPG at LPG terminal Balongan, submarine pipeline facility that will transfer LPG received through tanker to Spherical tank. PT. Pertamina (Persero) also planning to build 3 (three) a LPG Spherical tan with capacity of 3000 MT. 1.2 Objective The objective of this report is to present the mooring analysis for “PLB ALEA KEREN" during shorepull pipeline 6” and 16” operation. 1.3 Definition of Terms The following words if found elsewhere inthis document shall have the meaning as follow: CLIENT/ OWNER/ PTM PT Pertamina (Persero) Directorate of Marketing & Commerce as the owners and users of the facility or equipment. CONTRACTOR



PT WIJAYA KARYA, Company orentity designated by PT PERTAMINA to carry out all the work " PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN ".



CONSULTANT



Parties who have been appointed by PT PERTAMINA as an engineering consultant for this project.



VENDOR/ SUPPLIER



Companies or entities that provide materials, equipment, documents / drawings and technical service to carry out the work specified by CONTRACTOR or PT. PERTAMINA.



SUBCONTRACTOR



Companies or entities specified and as representative CONTRACTOR to carry out some or all of the work.



MIGAS



The Representatives of the Indonesian government which is responsible for the issuing of licenses and permits operation of oil and gas.



PEMBANGUNAN DERMAGA ISLAND BERTH DAN SPL DI TERMINAL LPG BALONGAN DOCUMENT NO:



REV: 0



PLB MOORING ANALYSIS DURING SHOREPULL



ISB-ENG-X-CAL-010-W-A4



Hal5 of 25



2. REFERENCES 2.1 International Codes and Standards 1.



API RP 2SK



Design and Analysis of Stationkeeping Systems for Floating Structures.



2.2 Project Documents and Others Reference 1. ISB-ENG-X-CAL-008-W-A4



Pipeline Shorepull Analysis



3. RESULT SUMMARY AND RECOMMENDATION 3.1 Summary From the analysis, PIPELAY BARGE “ALEA KEREN” is able to hold her position under the stipulated environment for the “all lines intact” and “one line damaged” cases. The summarized results of whole mooring analysis line tension are shown in Table 4.1 and 4.12. For more detail, please refer to the analysis output in the Appendix F. Table 3.1-1. Summaries of the Maximum Line Tension during Shore Pull 6” Case



Max. Line Tension (MT)



Design Criteria (MT)



Remark



All Lines Intact



24.02 (Line S4, heading 900)