TECHNOLOGY AND DEVICES FOR THE UNDERWATER PRODUCTION OF HYDROCARBONS

摘要

The inventions relate to methods and devices for the underwater production of hydrocarbons. The method comprises drilling a well and further production work which is performed from an above-water platform, protecting the area of water above the well up to the surface of the sea with a shell, thereby ensuring that the oil floats within the shell. The shell is formed from separate sections and is mounted in floating fashion. A hermetically sealed concrete base is formed in the lower section, wherein, once the shell has come into contact with the bottom, said shell is temporarily fixed in the vertical position, after which drilling is performed through the concrete base in the seabed until the foundation rocks are penetrated, and then the drilled area, together with the part of the shell near the seabed, is filled with concrete. Once the concrete has hardened, a pile is formed in the seabed, which pile ensures further fixing of the shell. The drilling fines passing from the well into the bottom part of the shell are delivered to the platform by means of an airlift. The technical result consists in that the technology eliminates oil leaks into an area of water, wherein the effectiveness of the production of hydrocarbons is increased.