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专题演讲嘉宾:
Kelvin Chow
Business Line Manager Geophysics
Fugro |
| Kelvin Chow, with nearly 20 years of experience in marine geophysics, involving in geo-hazards and engineering surveys for oil and gas related projects since early 90s, holds a Bachelor Honours degree in Applied Geology and a Master degree in Business Administration. He is overall responsible for the business development and performance of the geophysics business line of Fugro Survey in South East Asia, including formulating and developing new service divisions that focus in deepwater survey techniques and applications. He has been heavily involved in numerous deepwater survey projects in the region, an active member of the Fugro Deepwater Technical Evaluation and Development Team, and will be managing the first Autonomous Underwater Vehicle (AUV) to be stationed in the Asia Pacific region. |
Evolving Geosciences and Survey Technologies,
Preparation for Deepwater Challenges
Deep Insight into:
Deepwater Geohazards
Over the continental shelf, some of the typical deepwater geohazrds of major concerns:
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Rapid sedimentation process / turbidity flow |
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Highly complex and unstable seabed and shallow sub-seabed foundation |
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Active geology – complex faulting activities, continuous seafloor deformation, highly undulated and
rugged seabed topography |
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Shallow geo-pressures - mud volcanoes, diapirs and fluid vents |
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Drilling hazards |
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Deep sea environmental issues |
Geophysical Survey Data
To effectively and efficiently study / predict deepwater geohazards:
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Multibeam echo sounder |
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Side scan sonar |
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Multiple Sub-bottom Profiling Data |
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Surface and sub-sea positioning |
Geophysical Survey Design and Concerns
Due to the huge water column; some of the prime considerations:
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Signal power and frequency selection – a vertical accuracy and vertical resolution issue |
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Signal spreading and fresnel zone – a horizontal accuracy and horizontal resolution issue |
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Data density and reliability issue and concern |
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Surface and sub-sea positioning issue and concern |
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