This is the second paper of three which discuss the seismic performance of a jack-up rig operating at several sites for the Tangguh development, offshore Papua Barat, Indonesia. The companion paper, Galanes-Alvarez et al. (2020) presents general details on the project while the current paper and Erbrich et al. (2020) concentrate on presenting key technical details associated with various aspects of the state-of-the-art seismic modelling that was conducted to assess the installation and in-place seismic performance of a jack-up rig operating at several sites for the Tangguh development. More specifically, the current paper includes a presentation of the full 3D structural jack-up and soil continuum model that was used for this work. Large displacement finite element analyses were used in some cases to define the initial penetration process and the means by which these results were mapped and transferred to the full 3D seismic model are also presented.
Carl Erbrich, Kok Kuen Lee, Sydney Lam, Kee Kiat Tho, Hugo Galanes-Alvarez and Armedito Ramadhan
Keywords: Jack-up, seismic, finite element analysis
Publisher: DFI