SELF-RAISING FLOATING DRILLING RIG Russian patent published in 1999 - IPC

FIELD: bore-hole drilling machinery and equipment. SUBSTANCE: this is intended for use in hydraulic engineering construction and particularly to facilities for development of continental shelf that is to designs of self-raising and stationary off-shore sea-installed drilling rigs. In self-raising floating drilling rig, dwelling module is made sectional and consisting of dwelling module proper and main corridor of tower-like deckhouse for service premises and control posts. Deckhouse is provided with central communication shaft which connects control posts and service premises with power supply setup and technological setup. Central shaft is installed with clearance relative to dwelling module and with elastic sealing over perimeter. Aforesaid embodiment and arrangement of drilling rig components widen performance potentialities of rig. EFFECT: higher efficiency. 1 cl, 3 dwg