The Impact of Marine Environment on Jackup Rig Stability

Authors: Halafawi M*, Mhanna A and Avram L

DOI: 10.23880/ppej-16000238

Volume 4, Issue 5

Abstract

Changing the conditions of offshore environment influences the offshore units' stability. In paper, a study of the impact of marine environment on a jackup rig was implemented. Firstly, the procedures of departure, transit, and emplacement on any emergency jacking location / stand by location are reviewed. After that, the conditions of weather forecasting are predicted and computed such as wave and wind lengths, speeds, and heights. Maps of changing wind and wave conditions are plotted. Surveying methods are used to determine the final location of the jackup rig. Maps of positioning the jackup rig are constructed. Additionally, the impact forces on the rig derrick are therefore computed. The developed results are effectively predicting the safe conditions and optimizing the positioning survey of the rig.

Keywords: Jackup; Stability; Wind; Wave; Location

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