MODU Performance in Hurricane Ivan

摘要

Hurricane Ivan tracked through a high density corridor of MODUs in the Gulf of Mexico leading to loss of station keeping of 5 Semisubmersible MODUs, and collapse of 1 jackup MODU.rnSemisubmersible MODUs in the Gulf of Mexico have changed their general usage since development of the API Standard RP2SK to which their moorings are designed for individual locations. With the development of deeper waterdepth highly productive platforms with their associated extensive subsea infrastructure, the consequences of MODUs drifting in an extreme Hurricane are potentially much greater than in the past.rnIn the aftermath of this hurricane which followed closely behind similar incidents in Hurricane Lili, and which was followed by Hurricanes Katrina and Rita, the industry is reflecting on the lessons learned and taking the opportunity to re-examine the industry standards. There was no loss of life and no major pollution resulting from the results of MODUs in Hurricane Ivan. An MMS commissioned study has been undertaken to chronicle the incidents of Hurricane Ivan to provide an independent report on the information available for use in future studies which may lead to a more robust criteria for MODU safety.