AI SearchAnalysis of dents on subsea pipelines due to dropped objects (Record no. 4688)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04363nas a2200433 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162327.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170202s2014 th uu m rtt 000 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12178639 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.OTM-14-03 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ryadin, Agus Umar |
| 245 10 - TITLE STATEMENT | |
| Title | Analysis of dents on subsea pipelines due to dropped objects |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2014 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 86 leaves : |
| Other physical details | ill. (some col.) |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. OTM-14-03 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master ofEngineering inOffshore Technology and Management, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2014 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | As the main facilitiesfor oil and gas transportation and distribution, it is very important to maintain the subsea pipeline integrity from any damage that can affect to its function. The subsea pipeline possibly can be hit and impacted by the dropped objects like drilling collars, pipelines, containers or any other materials or equipment that fall in to seawater during lifting operation near to offshore platform or during pipelines installation. In relation with that purpose, this study mainly focuses on analysis the phenomenon of the dropped object with different geometry and different kinetic energy which hit and impact to subsea pipelines.The analysis was done by modeling and simulatingthe dropped object on to subsea pipeline using finite element analysis software, ABAQUS release 6.13. The subsea pipeline that was considered in this study had been designed for pipeline bursting condition which seatingon seabed at100 m water depth under operation condition. For modeling, there were four size ofpipelines i.e. 12, 18, 24 and 30 inch, with two geometry types of dropped object : tubular and box, which were applied with seven variety of impact kinetic energy levels: 25 kJ, 50 kJ, 100 kJ, 200 kJ, 400 kJ, 800 kJ and 1,000 kJ. Then, finally the post processing analysis was done to review the output of ABAQUS modeling for each variety on relation with dent depth, dent depth to diameter ratio and pipeline capacity, and check for any rupture or hydrocarbon released from the pipelines.In overall, this study had shown that the result were different for each type of kinetic energy, outer diameter of pipeline and geometry of dropped object. Especially for dent depth to diameter ratio (in percentageunit), its relation with kinetic energy level was different compare with DNV-RP-F107, especially for tubular type of dropped object. Also the results were different for each pipeline size.The results of this study can beused as base line assumption in subsea pipeline designand also for consideration of subsea pipeline protection system. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Underwater pipelines |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Finite element method |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chiu, Gregory L.F., |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pornpong Asavadorndeja, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Boswell, Laurence F., |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Directorate General of Higher Education (DIKTI), Indonesia, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. OTM-14-03 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B03640 ">http://203.159.5.9/ait-thesis/detail.php?q=B03640 </a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12178639 |
| b | mnait |
| c | m |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240409 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 170202 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | m |
| -- | 0 |
| 962 ## - | |
| -- | 000:001:PDF:b1217863:002938:0:0:0:0:0:0 |
| -- | Abstract |
| -- | n |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120326821 |
| CREATED | CREATED : 2017-02-02 |
| RECORD Id | RECORD # : i13066912 |
| LPATRON | LPATRON : 1027056 |
| LCHKIN | LCHKIN : 2017-03-06 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120326623 |
| CREATED | CREATED : 2017-02-02 |
| RECORD Id | RECORD # : i13066924 |
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| LCHKIN | LCHKIN : 2017-12-10 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120401418 |
| CREATED | CREATED : 2017-09-29 |
| RECORD Id | RECORD # : i13105322 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.OTM-14-03 | 30050120326821 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.OTM-14-03 | 30050120326623 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.OTM-14-03 | 30050120401418 | 17/08/2026 | 1 | 17/08/2026 | 40-Archives |