Three-dimensional monitoring system for hydrate mining environment in sea area

Abstract

The invention relates to a three-dimensional monitoring system for the mining environment of hydrates in sea areas, which includes a drilling platform, an inner core monitoring circle with the main production well as the center, an outer core monitoring circle and a cruise monitoring area outside the circle; the inner core monitoring circle includes environmental monitoring auxiliary wells, Bottom-seat submarine workstations and terrain deformation monitoring devices; the outer core monitoring circle is evenly distributed along its circumference with moored submersible workstations interlaced with the bottom-seat submarine workstations; AUVs and submarine connection platforms are set up in the cruise monitoring area outside the circle. The subsea connection platform provides unified power supply and deployment, and is connected to the above-mentioned equipment with cables; the present invention fully considers factors such as water pollution, biological damage, and geological disasters that may be caused during the hydrate mining process, so as to comprehensively and effectively evaluate hydration. Environmental effects of gas hydrate mining activities, early warning of potential environmental disasters, and an environmental scientific evaluation system for commercial hydrate mining.

Description

technical field [0001] The invention relates to the technical field of exploration and exploitation of modern seabed natural gas hydrate resources, in particular to marine environment monitoring, evaluation and prediction during the hydrate exploitation process. Background technique [0002] Natural gas hydrate is a solid ice-like substance formed by the combination of natural gas molecules and water molecules. It is currently considered as a new type of energy with great potential. The main component of which is combustible methane, so it is often called "methane hydrate". [0003] At present, countries such as Canada, the United States and Japan have successively carried out trial mining of methane hydrate on land and in the sea. For a large energy consumption country like my country, the scientific theory, resource evaluation, technical methods, Pilot mining, demonstration, and commercial development are of great strategic significance, and they are also reliable means to...

AI Technical Summary

Problems solved by technology

However, in the context of the continuous increase in global energy demand and the gradual increase in carbon emissions, natural gas hydrate is not only a potential energy resource with huge reserves, but also an important source of greenhouse gases. At the same time, because 99% of hydrate resources Stored in the marine environment, in the process of exploration and development, it will inevitably cause risks such as submarine methane leakage, seabed displacement and subsidence, damage to biological communities, water pollution and even submarine landslides

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