With the development of offshore oil and gas resources, equipment needs to be more compact, save installation time, and be suitable for operations in restricted spaces compared to onshore wellheads. The equipment should meet the requirements of exploiting three different oil layers or three different sections of a single well bore and reducing the installation size of the platform's wellhead and oil recovery tree. By adopting integral forging technology for the pressure-bearing components, the integral gas recovery tree has fewer potential leakage points and better safety than the split-type gas recovery tree. It saves installation space and is ideal for offshore platforms, widely applicable to high-pressure and high-yield offshore oil and gas fields.