FLOATING FACILITY FOR DRILLING WELLS FROM SUPPORT UNITS Russian patent published in 2010 - IPC E02B17/00 

FIELD: oil and gas production.

SUBSTANCE: floating facility for drilling wells from support units containing a "П"-shaped pontoon with a telescopic console platform whereon a derrick and equipment for well drilling are arranged, a power unit, a residential unit, load-lifting cranes, technological unit modules with warehousing premises for drilling, a helicopter landing platform and integrated columns for installation on sea bottom, lifting mechanisms providing for lifting the pontoon to the operating position above the sea level, equipped with means for mounting the pontoon onto the support unit arranged in a "П"-shaped aperture while the lifting mechanisms are designed in the shape of hydraulic cylinders serving for the pontoon relocation relative to the columns and along them so that to provide for their dismantling for the well drilling period. Additionally in the floating facility the pontoon is equipped with hydraulic lifters on frame posts intended for submerge of the support unit to the sea bottom. The technical solution enables improved efficiency of the facility operation due to provision for possibility of extending the facility operation period to be all years round in regions of minor depths, in Arctic regions and in regions where structures are subject to ice impact.

EFFECT: creation of a floating facility design ensuring its all year round operation round in regions of minor depths, in Arctic regions and in regions where structures are subject to ice impact as well as serving for drilling wells from support units and for the support units installation on the sea bottom which for the period of drilling wells at a sea oil and gas deposit is mounted onto a conductor unit or a support unit and is not subject to ice impact.

5 cl, 16 dwg