FLOATING PLATFORM FOR SEA WELLS BORING AND PRODUCTION IN ARCTIC CONDITION Russian patent published in 2010 - IPC E21B7/12 E02B17/00 B63B35/44 

FIELD: oil-and-gas industry.

SUBSTANCE: floating platform for sea wells boring and production in Arctic conditions contains boring and production equipment, including drill stem, water separating casing string, lifting pipes and pump bars, at that the mentioned above tube and bar strings during an operation process equipped with a floating elements on their external surface, made as filled with gas nitrogen or inertial gas solid plates of welded detachable balloons. The platform equipped with an ice breaker for ice pressure protection and anchored to the bottom via anchors with cables, on which balloons fixed. In the casing water separation string installed location detectors, at its bottom part there is a window for connection with hole clearance, which during the boring covered with a pipe with a balance, hanged with a balloon cables on the platform. The external surfaces of the sea casing water separation string, boring pipes, lifting pipes, pump bars and balloons have a water protection cover, and can be made of steel or aluminium alloys, or ceramic metal or polymers.

EFFECT: invention provides production and boring equipment safety operation due to loads from casing string and drill stem, also pump bars and lifting pipes weight decreasing.

6 cl, 6 dwg