Oscillating platform on flexible piles for work at sea

Patent · Tue Aug 04 04:00:00 EDT 1987

OSTI ID:6185155

Danguy des Deserts, L M.J.; Michael, D; Sedillot, F G

An oscillating platform is described for work at sea, the platform having a weight, comprising a deck, a lattice tower having an upper part and a lower part, the tower further having a total buoyancy center, and a center of gravity, an articulation formed by flexible piles. The articulation has a center; the flexible piles are driven into the sea bed and fixed to the upper part of the tower; the tower comprising floaters in its upper part and a ballast compartment in its lower part, as well as means for resisting shear forces; the product of the total buoyancy of the tower by the distance between the buoyancy center of the tower and the center of the articulation are at least equal to 1.25 times the product of the weight of the platform by the distance between the center of gravity of the platform and the center of the articulation.

• Assignee: Doris Engineering
• Patent Number(s): US 4684292
• OSTI ID: 6185155
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
423000 -- Engineering-- Marine Engineering-- (1980-)
FLEXIBILITY
FOUNDATIONS
GRAVITATION
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
OSCILLATIONS
SEA BED
SEAS
SUPPORTS
SURFACE WATERS
TENSILE PROPERTIES
TOWERS
WELLS