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A method of subsea testing using a remotely operated vehicle

A technology for remote operation and delivery vehicles, which is applied in the direction of material analysis, measurement devices, transportation and packaging using wave/particle radiation, which can solve the problems of tedious, inefficient understanding of seabed material properties, waste of mining time and resources, etc.

Inactive Publication Date: 2015-04-01
NAUTILUS MINERALS PACIFIC PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is only suitable for soft sediments and is not suitable for obtaining mineral-bearing samples of hard rocks
[0008] Not only is it tedious to obtain sample material as described above, but analysis of seabed material cannot be performed until after the sample has been retrieved and tested
This time delay is significant and leads to significant inefficiencies in the understanding of the properties of seabed materials
This results in a waste of mining time and resources

Method used

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  • A method of subsea testing using a remotely operated vehicle
  • A method of subsea testing using a remotely operated vehicle
  • A method of subsea testing using a remotely operated vehicle

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Embodiment Construction

[0027] figure 1 A schematic diagram showing a seabed operation 10 on a seabed 12 below sea level 14 is shown. Seabed operations 10 may be located at various depths below sea level 14 , but typically seabed 12 will be more than 1000 m below sea level 14 , and in many cases approximately 2000-3000 m below sea level 14 .

[0028] Seabed operations 10 include a remotely operated vehicle (ROV) 40 capable of traversing the seabed 12 . Remotely operated vehicle 40 may float and / or drive above seabed 12 . The remotely operated vehicle has spectral sensors in the form of x-ray fluorescence (XRF) and / or neutron activation analysis (NAA) sensors 42 . It will be appreciated that a single spectral sensor in the form of an XRF or NAA sensor will typically be provided. Alternatively, both XRF and NAA sensors may be provided. The XRF and / or NAA sensor 42 is mounted within a pressure graded housing having an XRF and / or NAA transmission window.

[0029] The ROV 40 is also connected to the ...

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Abstract

A method of subsea testing using a remotely operated vehicle (ROV) is provided. The ROV has a spectroscopic sensor, preferably an x-ray fluorescence or neutron activation analysis sensor. The method includes identifying seafloor material to analyse, directing the ROV to the identified seafloor material, and analysing the seafloor material with the spectroscopic sensor. The method allows real time, or at least near real time, analysis of seafloor materials of interest without the need to obtain samples for analysis at the surface.

Description

technical field [0001] The present invention relates to a method of subsea testing using a remotely operated vehicle (ROV). In particular, the present invention relates, but is not limited to, to methods of testing seabed materials using remotely operated vehicles equipped with spectroscopic sensors such as x-ray fluorescence (XRF) sensors or neutron activation analysis (NAA) sensors. Background technique [0002] Reference to the background art herein is not an admission that such art constitutes common general knowledge in Australia or elsewhere. [0003] Seabed mining operations are developing in which seabed material, typically seabed sediments such as seabed massive sulphides, is mined and transported to surface ships for disposal. Many challenges arise from operating in such underwater environments, especially when operating at depths in bodies of water such as 1000-3000m+ below sea level. [0004] One of these challenges is the analysis of seabed materials. Typical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/222G01N23/223B63C11/48B63G8/42
CPCB63B2211/02B63G2008/007G01N23/222G01N23/223G01N2223/076G01N2223/616B63C11/48B63G8/42B63G8/001G01N2223/074
Inventor G·史密斯S·利奇
Owner NAUTILUS MINERALS PACIFIC PTY LTD
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