Safety and reliability of a fixed offshore platform in the Gulf of Thailand | |
| Author | Sakrit Charoenpornpanich |
| Call Number | AIT Thesis no.OTM-10-02 |
| Subject(s) | Offshore gas industry--Thailand, Gulf of--Safety measures Offshore oil industry--Thailand, Gulf of--Safety measures |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Offshore Technology and Management, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. OTM-10-02 |
| Abstract | The safety of oil and gas offshore industry is very important since they always relate to hydrocarbon products and unpredic table hostile environments. Consequently, reliability analysis is considered to indicate a safety le vel of a platform. However, an analysis based on the actual limit state requires an excessive co mputational effort, thus a complete second order polynomial limit state shoul d be considered, instead. Monte-Carlo simulations with important sa mpling technique are used together with complete 2 nd -order polynomial limit states to eval uate failure probability. Moreover, the computational effort can be further reduced by indicating domina nt variables obtained directly from the 2 nd -order polynomial without mixed te rm. The results with incomplete 2 nd -order polynomial limit states can be obtai ned efficiently withou t significant loss of accuracy and seem to be advantageous over those results applying the concept of reduction in the number of variables or the advanced FOSM methods in terms of computational effort and confidence. In conclusions, the complete 2 nd -order polynomial limit states can be used in place of the actual limit state to obtain good and effici ent estimates of failure probability. With incomplete 2 nd -order polynomial limit states suffici ently accurate results can still be obtained with significant reducti on in computational effort. |
| Year | 2010 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. OTM-10-02 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Offshore Technology and Management (OTM) |
| Chairperson(s) | Chiu, Gregory L.F. |
| Examination Committee(s) | Winai Ouypornprasert;Pennung Warnitchai |
| Scholarship Donor(s) | RTG Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2010 |