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Keywords: nodule
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Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-050
... configuration mining vehicle nodule collection subsea system nodule transportation geologist operation self-propelled deep sea miner preparation cable geology sensor assembly muthukrishna babu slurry qualification control polymetallic nodule transformer ABSTRACT India...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-052
... ABSTRACT Adaptation of positive displacement pumps for deep sea slurry pumping is an unique approach and seldom proposed elsewhere. This paper describes the pumping of collected nodules by a positive displacement pump. A sea trial for collecting nodules from sea bed at 400m depth was conducted...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-055
... ABSTRACT The disturbance of seabed sediments during nodule collection is a pivotal consideration in Environmental Impact Assessments (EIA). Developing methods to quantitatively evaluate the disturbance caused by specific engineering solutions for polymetallic nodule collection in deep-sea...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-056
... particle proximity investigation geology experiment engineering geologist characteristic clearance efficiency journal linear correlation augmentation electromagnetic flowmeter spherical particle hydraulic fracturing nodule operation relationship nadir zhao pick-up efficiency...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-021
...Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-80-7; ISSN 1098-6189 www.isope.org Studies on Polymetallic Nodule...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-027
... on influence of flow area zone and critical lift height of Polymetallic nodules in Hydraulic Collector K. Amudha1 K. Gopkumar2, Muthuvel. P3, Deepak Kumar4, V.Chandran5, V. Sundaramoorthi6 , G. A. Ramadass6 National Institute of Ocean Technology, Chennai, Tamil Nadu, India ABSTRACT A numerical and experimental...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-035
... by inclinometer during exploration of deep-sea polymetallic nodules Akira Tsune1 and Yohei Taketomo2 1Deep Ocean Resources Development Co., Ltd., Chuo-ku, Tokyo, Japan 2Ocean Engineering and Development Co., Ltd., Chuo-ku, Tokyo, Japan ABSTRACT Box corer (BC) sampling is a well-known method in exploration...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1182
... of the Impact Crusher using DEM Approach for Nodule Crushing in Deep Sea Mining Applications Amudha K, Sundaramoorthi V, Gopkumar K, Ramadass G A Deep Sea Technologies, National Institute of Ocean Technology, Chennai, Tamil Nadu, India. ABSTRACT electro-hydraulic; the collected/crushed nodule mixture...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1109
... drilling fluid chemistry drilling fluids and materials nodule slurry flow rate metals & mining fluid loss control filter cloth experiment slurry pulp density recovery drilling fluid selection and formulation drilling fluid formulation flow rate filter press drilling fluid...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1111
... particle material in the vertical pipe. Xia et al. (1997) founded a calculating model to predict and optimize the hydraulic lifting parameters of a manganese nodule mining system. production monitoring hydraulic fracturing production control artificial intelligence concentration reservoir...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1108
... ABSTRACT Nodule pick-up methods used in hydraulic collecting for deep sea mining have significant effects on pick-up efficiency and environmental disturbance. In this paper, three kinds of nodule pick-up methods are investigated and compared in the differences between collecting performance...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-693
... are the accurate positioning together with the acquisition of related geological and physicochemical parameters, and in-situ and intact ferromanganese samples for analyses. During the dives we observed wide-spread and mostly continuous cover of hydrogenetic ferromanganese crust deposits (crusts and nodules...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-296
... reference data for the pilot test and the commercial realization. The hydrodynamic resistance of skips obtained from single skip test can explore the main composition of water resistance. INTRODUCTION Polymetallic nodules are found on the deep-seabed of oceans worldwide. With the decrease of land...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-711
... to play important roles in determining the thickness and distribution of manganese crusts. sediment microscopic scale takuyo-daigo seamount variation nodule deposit metals & mining upstream oil & gas northwestern pacific seamount ferromanganese crust hydrogenetic ferromanganese...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-706
... ABSTRACT Article presents the methodology for operational research on the polymetallic nodules mining value chain and the assessment of crucial factors influencing its feasibility. Value chain has been analyzed and boundary assumptions having a substantial influence on the decision making...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-334
... as empirical equations using dimensionless quantities. INTRODUCTION The world's growing economy demands more mineral extracted from the ocean. This demand requires the development of the deep-ocean mining technology. Polymetallic nodules are deposited over the ocean floor at water depth of 4,000~6,000 m...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-117
... Abstract For continuously-taken seafloor photographs of polymetallic nodule, automatic procedures of image processing and subsequent treatment of a vast amount of data have been developed for estimating parameters representing distribution of polymetallic nodules such as sizes, numbers...
Proceedings Papers

Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-113
... ABSTRACT Experiments have been performed to study the differences of the flow characteristics between real and artificial manganese nodules-water mixture and synthetic nodules-water. The results show that the hydraulic gradients of the mixtures were almost identical in the case of both...

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