UNDERWATER RIG FOR DEVELOPMENT OF HYDROCARBONS (OIL AND GAS) DEPOSITS IN ARCTIC SHELF Russian patent published in 2014 - IPC E21B43/01 B63B35/44 

FIELD: oil-and-gas industry.

SUBSTANCE: underwater rig comprises two submarines, one making deep-water drilling complex. Said complex consists of two modules, one making process module for executing the entire cycle of well construction and another one making the drilling module. Second submarine represents a nuclear underwater power production complex. Process module comprises drilling module supercharging system, storage battery compartment connected with cable joint. Process module top section is equipped with float emergency chamber with docking assemblies and self-propelled submarine while bottom section is provided with lock chamber with lifter. Drilling module is arranged vertically relative to process module and connected therewith by pipeline and power cables. Drill rig with hydraulic drive is arranged at drilling module centre. Bottom thrust plate, set of preventers, drill tool are arranged in drilling g module axial plane while pipe feed and making-up automatic device is arranged on opposite side.

EFFECT: higher efficiency.

4 dwg