In situ planting system for deep sea hydrothermal metal sulfide deposits

Abstract

The invention proposes an in-situ planting system for deep sea hydrothermal metal sulfide deposits, which includes a hydrothermal metal sulfide mound, a drilling casing, a wellhead control diversion device and a fluid mixing control cover. The drilling casing penetrates into the hydrothermal metal sulfide The hydrothermal metal sulfide mound is composed of an aquifer, a hydrothermal fluid enriched layer and the mound bedrock from the outside to the inside. The drilling casing has perforations on the wall of the hydrothermal fluid enriched layer. The top of the drilling casing is provided with a wellhead control diversion device. The bottom end of the fluid mixing control cover is provided with a lower opening. The lower opening is set around the top of the drilling casing. The top of the fluid mixing control cover is provided with an upper opening. The fluid mixing control cover A number of fluid holes are provided on the side wall of the cover, and the inner wall of the fluid mixing control cover is provided with a sulfide mineral coating. The invention has the beneficial effects of: making full use of natural factors to cultivate deep-sea hydrothermal metal sulfide deposits to reduce mining costs and avoid environmental pollution.

Description

technical field [0001] The invention relates to the technical field of exploration and mining of deep-sea metal sulfides, in particular to an in-situ planting system for deep-sea hydrothermal metal sulfide deposits. Background technique [0002] Modern deep-sea hydrothermal metal sulfide deposits are metal mineral resources of strategic significance, rich in iron, copper, lead, zinc, nickel, cobalt, gold, silver, platinum and other metal elements, located in the global ocean at depths ranging from hundreds of meters to 4,000 meters It is distributed everywhere, and mainly occurs in mid-ocean ridges, back-arc basins and stratigraphic fault active zones. According to preliminary estimates, there are about 900 independent hydrothermal metal sulfide deposits on the ocean floor around the world. So far, more than 160 deposits have been discovered. Preliminary estimates for several mid-ocean ridge deposits show that their scale is usually in the Between 1 million and 100 million ...

AI Technical Summary

Problems solved by technology

Even so, there are still some difficulties in the mining of deep-sea metal sulfides, mainly including: 1) High mining cost: Although the taste of seabed sulfides is high, if the mining scale cannot reach a certain level, the cost will inevitably be higher than that on land, and The cost of ore transportation, recovery and smelting of silver, copper, zinc, lead and other metals is also relatively high; 2) The thinking is too traditional and the technology is still immature: deep-sea polymetallic nodules, cobalt-rich crusts, and deep-sea oil and gas mining technologies and Experience can only provide a limited reference for the mining of hydrothermal sulfides, and it is still necessary to find another way. According to the mineralization characteristics of seabed deposits, innovative thinking, design more reasonable and targeted exploration and mining plans; 3) Environmental risks: seabed Once mining enters the implementation stage, it will inevitably bring risks to the marine environment, including water pollution, submarine landslides, especially the possible destruction of the unique biological ecological communities in hydrothermal areas, causing ecological disasters

Images