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Journal Articles Remote Sensing Year : 2021

Underwater Survey for Oil and Gas Industry: A Review of Close Range Optical Methods

Bertrand Chemisky
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Fabio Menna
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Erica Nocerino
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Pierre Drap
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In both the industrial and scientific fields, the need for very high-resolution cartographic data is constantly increasing. With the aging of offshore subsea assets, it is very important to plan and maintain the longevity of structures, equipment, and systems. Inspection, maintenance, and repair (IMR) of subsea structures are key components of an overall integrity management system that aims to reduce the risk of failure and extend the life of installations. The acquisition of very detailed data during the inspection phase is a technological challenge, especially since offshore installations are sometimes deployed in extreme conditions (e.g., depth, hydrodynamics, visibility). After a review of high resolution mapping techniques for underwater environment, this article will focus on optical sensors that can satisfy the requirements of the offshore industry by assessing their relevance and degree of maturity. These requirements concern the resolution and accuracy but also cost, ease of implementation, and qualification. With the evolution of embedded computing resources, in-vehicle optical survey solutions are becoming increasingly important in the landscape of large-scale mapping solutions and more and more off-the-shelf systems are now available. The issues raised in this review are mainly related to the qualification of the results produced by optical systems and their limitations to cover all the needs expressed by the oil and gas industry field. Interesting qualification works of these solutions are presented in this paper as well as the use of online processing tools such as visual odometry or VSLAM to guide the data acquisition and pre-qualified survey. Finally, it seems interesting to combine acoustic and optical technologies in order to extend the field of application of these methods to low visibility conditions, which remains one of the main limiting factors in the generalization of the use of optical sensors in high resolution underwater cartography applications.
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hal-03361951 , version 1 (01-10-2021)





Bertrand Chemisky, Fabio Menna, Erica Nocerino, Pierre Drap. Underwater Survey for Oil and Gas Industry: A Review of Close Range Optical Methods. Remote Sensing, 2021, 13 (14), pp.2789. ⟨10.3390/rs13142789⟩. ⟨hal-03361951⟩
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