000 03494nas a2200385 a 4500
005 20260818094301.0
008 090907s2009 th uu|m rtt 0| a1eng d
035 _a.b12067167
099 9 _aAIT Thesis no.OTM-09-01
100 0 _aSongkiat Hansanti
245 1 0 _aDynamic response of offshore minimum structures in the Southern Gulf of Thailand
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2009
300 _a107 leaves :
_bill.
490 1 _aThesis ;
_vno. OTM-09-01
500 _aA 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
502 _aThesis (M.Eng.) - Asian Institute of Technology, 2008
520 _aDepletion of major oil and gas field is inevitable in the near future and there is a lot of undeveloped marginal offshore oil & gas field scattered around the Gulf of Thailand especially for the Southern part; thus, the opportunity to use minimum structures on Thailand's offshore oil and gas production is widely open. However, knowledge of the structural performance is required before making any investment decision particularly for costly offshore construction. Dynamic responses of free standing monopod and braced caisson under extreme and service wave condition in the Southern Gulf of Thailand are investigated. Wave parameters are generated from wave height record of Geo-Informatics and Space Technology Development Agency (GISTDA) measured from 1993 to 1995 at the water depth range from 17 to 55 m. Over 200 cases are investigated by varying water depth (20, 25 and 30 m.), topside pay load (800, 1200 and 1600 kN), caisson outside diameter (1.2-2.8 m.) and wall thickness (25, 38 and 50 rom.). Results of this study show there is an opportunity to develop marginal offshore oil & gas field in the Southern Gulf of Thailand using both free standing monopod and braced caisson, however the structural system with natural period less than 2 seconds in 20 m. water depth seems to be a boundary of free standing monopod in order to satisfy the vibration requirement of HSE for offshore installation. Comparing dynamic response, braced caisson is better than free standing monopod. Shorter free span can help limit dynamic amplification factor to be less than 1.5 and topside acceleration to be less than 5 cm./sec.² which meet the vibration requirement for offshore installation.
650 0 _aOffshore structures
_zThailand, Gulf of
_xDynamics
700 1 _aChiu, Gregory L.F.,
_eChairperson
700 1 _aWidjaja, Joko Harsono,
_eCo-Chairperson
700 0 _aWorsak Kanok-Nukulchai,
_eExamination Committee
710 2 _aSTARR Foundation,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. OTM-09-01
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B03586
907 _a.b12067167
_bmnait
_cu
902 _a240329
998 _b0
_c090907
_dm
_ea
_fu
_g0
945 _lmnait
945 _lmnarc
942 _c22
942 _c40
909 _aBarcode : 30050120685739
_bCREATED : 2014-05-19
_cRECORD # : i12800764
_dLPATRON : 1027177
_eLCHKIN : 2017-02-02
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 1
_iTOT CHKOUT : 2
_jTOT RENEW : 0
909 _aBarcode : 30050160006432
_bCREATED : 2016-03-23
_cRECORD # : i12905719
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
999 _c32043
_d32043