Determination of marine drilling rigs stability items for their efficient exploitation and safe tow

Solutions of problems concerning stability at floating state and steadiness at sea bottom landing for jackup drilling rigs are considered. From these points of view various regimes of rigs exploitation are studied. Monitoring and control problems are solved by determination of basic stability and steadiness items. Software is designed for automatization of the problems solutions. Recommendations are presented to change rig stability and steadiness items at dialog regime.