The modular structure is the mainstream construction mode for offshore engineering. Its core lies in disassembling the upper facilities of the offshore platform (Topside) into multiple independent functional and structurally standardized single modules. All these modules are prefabricated, assembled, and debugged in a land-based factory, and then transported to the project area by sea. The entire platform is erected through offshore hoisting and integration methods, and it is widely applicable to various fixed and floating offshore platform construction projects.

The Jacket Structure is a typical fixed-type offshore platform space truss structure. It is formed by assembling various steel pipe components through welding nodes. The structure is fixed to the seabed foundation by the leg piles and can stably bear various production, living, and drilling equipment modules on the upper part. It is the mainstream foundation form for oil and gas and offshore wind power projects in shallow water and medium-deep water areas.

FPSO (Floating Production Storage and Offloading) refers to a comprehensive offshore floating facility that integrates oil and gas production, processing, storage and offloading. The equipment can complete preliminary purification and separation processes for the crude oil produced by oil wells, store the qualified crude oil in the ship's cabin, and then complete regular offloading operations through shuttle oil tankers. It is the core main equipment for offshore oil and gas development.

Floating platforms are the core equipment for deep-sea offshore oil and gas development, capable of adapting to various complex offshore operation scenarios. They are widely used in deep-water oil and gas fields with water depths exceeding 300 meters for economic exploitation of marginal oil and gas fields. They can also rely on existing offshore facilities to achieve the economic production of offshore oil and gas fields. At the same time, they can serve as early production systems for oil fields, meeting the requirements of rapid commissioning and rapid capacity realization during the exploration stage. They can also be transformed into offshore natural gas liquefaction platforms to complete the purification, treatment, and liquefaction processing of offshore natural gas.

Fixed platforms are the most technologically mature structural type in the field of offshore oil and gas development. They have a wide range of applicable scenarios and can be used for oil and gas extraction in offshore oil fields with water depths of 50-200 meters, as well as for the economic development of small and medium-sized marginal oil fields. They can also serve as offshore operation bases for drilling, well repair, and production support. Additionally, they can be transformed into marine observation platforms to conduct marine environmental monitoring and marine scientific research.