The main aim of this work is the implement of a self-elevating drilling rig on the appointed space of water area through solving engineering problems. During this working process some external conditions of the area, examined basic constructional peculiarities of jackup rig were analysed. The mathematical modeling of a self-elevating platform's state in the moment of implementing on the drilling point under an external pressure was examined. The system of drilling installation's ballasting and modeling of ballast tank's filling in using abutting system's pressing into a bottom soil were pointed out. Moreover, the hydro-technical calculation method was analyzed. The aim of this method is testing of building's strength and steadiness in a working statement and determination of the maximum-pressure affected fundamental columns.