High-effective-load-ratio light semi-submersible type production platform

Abstract

The invention discloses a high-effective-load-ratio light semi-submersible type production platform which comprises three rectangular buoyancy tanks connected end to end, three uprights connected with the rectangular buoyancy tanks and spaced from one another, a truss arranged at the upper ends of the three uprights and a deck arranged on the truss. The three rectangular buoyancy tanks form an integrated triangular structure with a triangular hole formed in the middle portion. Each rectangular buoyancy tank and the corresponding upright are of a sealed hollow structure. Each upright is arranged on the outer side of the connecting position of the corresponding two adjacent rectangular buoyancy tanks. A web-shaped angular cabin is arranged at the position, located at the connecting position of every two adjacent rectangular buoyancy tanks, in the triangular hole. By the adoption of the platform, three-upright platform floating bodies are adopted, so that the load ratio is effectively increased; the economical efficiency of the semi-submersible type production platform is improved, and cost can be saved for medium-deep water marginal oil-gas field development; and the semi-submersible type production platform is wide in applicable water depth range, small in displacement, good in mobility and suitable for conducting drilling and production operation under the severe sea environment conditions of the South China Sea and the like.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a light semi-submersible production platform with high payload ratio. Background technique [0002] With the continuous expansion of the scale of human exploitation of offshore oil and gas, the exploration and development of offshore oil and gas is gradually expanding to deeper sea areas. For oil and gas development and production in shallow waters above 300 meters, fixed platforms are usually used. Sea areas with water depths from 300 meters to 1,000 meters are generally defined as medium-deep water areas, where there are a large number of small and medium-sized and marginal oil and gas fields around the world. For oil and gas exploration and production in medium and deep water areas, floating production platforms are generally required. As one of the typical floating platforms, the semi-submersible production platform has been widely used in offshore oil exploratio...

AI Technical Summary

Problems solved by technology

At present, light semi-submersible production platforms with conventional design generally have relatively low payload, and their economic efficiency cannot meet the needs of offshore mid- and deep-water marginal oil and gas field development.

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