PILE OIL-AND-GAS SEA PLATFORM Russian patent published in 1997 - IPC

FIELD: construction of sea platforms for installation of drilling equipment. SUBSTANCE: pile incorporates interconnected sections 1 and ballast system with kingston valves 4. Installed in its lower part is hydraulic motor, and connected to shaft 6 of motor rotor are spiral blades 11 and drilling cutter shield 5. This ensures dipping of pile into sea bottom to required depth, together with blades 11 creating axial thrust on shield 5. Hydraulic motor is provided with water line 8 going to upper part of pile, thus ensuring delivery of working medium to motor and for cementation of pile in borehole. Pontoons 10 located below water surface level provide necessary tensioning of pile. EFFECT: high efficiency. 2 dwg