33results about How to "Good oil storage performance" patented technology

Disclosed is a floating type self-elevating drilling platform, having: a main deck (1) and an upper structure thereof, a floating pad (7), pile legs (6), a lifting mechanism (5) and a mooring system. The area and thickness of the floating pad (7) is greater than those of the main deck (1), and the pad is provided with a moon pool (9) in the middle and is internally divided into a plurality of cabins. A well drilling module is located at or close to a position above the geometrical centre of the main deck. There are three pile legs (6), all being of a truss structure; a bottom part of each pile leg (6) is in rigid connection with the floating pad (7); the main deck (1) is perpendicularly lifted and lowered along the pile legs via the lifting device (5), and is fixed at a pre-determined height; each pile leg (6) contains an upper and lower sections of hollow sealed body (61, 63), and during the operation, the waterline is located within a height range of the upper section and is positioned via the mooring system. Different from a traditional self-elevating platform, the present platform is not in contact with the seabed during the operation, and has a floatation centre higher than the centre of gravity, a good movement performance, and a high oil storage capacity, and the floating self-elevating drilling platform can be used for oil and gas drilling and production in a sea area within a water depth of 500 metres and is particularly suitable for a water depth of 200-500 metres.