Anchored deep sea sulfide seismic exploration data receiving device and receiving method

Abstract

An aspect of the invention provides an anchored deep sea sulfide seismic exploration data receiving device, which comprises a straightening and positioning unit, a data receiving unit, a release and positioning unit and an anchoring unit coupled to the lower end of the release and positioning unit which are mounted on a Kevlar rope from top to bottom; and in another aspect, the invention providesan anchored deep sea sulfide seismic survey data receiving method including the steps of sinking the device into a seabed, performing data measurement and recording, and partially recovering the device. The technical solution of the invention adopts a modular design and an anchoring operation scheme, thereby improving the convenience of device deployment and recovering and reducing the probabilityof system breakdown caused by a major failure; and the design of the dual release devices further improves the stability of the system. The anchored deep sea sulfide seismic exploration data receiving device can meet the exploration requirements of deep sea sulfide deposits of different types and sizes, can conveniently add other types of sensors, and can realize a multi-parameter data observation function efficiently and economically.

Description

technical field [0001] The invention relates to the field of marine survey, in particular to an anchored deep-sea sulfide seismic exploration data receiving device and a receiving method. Background technique [0002] Marine geology and mineral resources investigation is a basic and strategic investigation activity, in which seismic methods play an irreplaceable role in the investigation of shallow seabed geological structures, hydrothermal activities and polymetallic sulphides. The polymetallic sulphide exploration contract area of ​​Southwest Indian Ocean Ridge in my country has complex topography, and many of its sulphide deposits are located in the deep seabed of about 2000-3000m, so the exploration is difficult and requires high technology. [0003] At present, in the deep sea seismic survey, the towed multi-channel cable on the sea surface is mainly used to receive the reflected signal, but because it is thousands of meters away from the seabed, the accuracy of the obt...

AI Technical Summary

Problems solved by technology

Although there are vertical cables fixed on the seabed for sulfide surveys in the world, the maximum working water depth is 2000m, which are generally used in sulfide surveys in back-arc basins; the integrated cable design method with fixed length and track spacing makes the vertical cable adjustable. Poor performance, unable to meet the detection of sulfide deposits of different types and sizes, and failures are likely to cause the entire cable to fail to work

[0004] It can be seen that the existing vertical cables have deficiencies in operating water depth, operating methods, adjustability and ease of use, and cannot meet the actual needs of deep-sea polymetallic sulphide exploration in my country.

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