The Role of Geoscience in support of Offshore Wind Project Developments

Starts: Wed, Oct 4, 2023 12:00 PM CST
Ends: Wed, Oct 4, 2023 1:00 PM CST
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The take up of offshore wind as a source for electricity is accelerating globally across a variety of geologic settings.

The scope and scale of these projects is enormous. Whereas a major offshore oil and gas development might require the installation of four or five drill centers – be they from fixed platforms or subsea manifolds – and associated in-field and export pipelines and umbilicals, an offshore wind farm may require the installation of over a hundred turbines together with offshore substations, offshore convertor stations, intra array cables and export cables to shore. The areas that these projects cover is also significant with in-array project areas covering in excess of 750sqKm (>290sqMiles).

Foundation engineering of these projects can account for greater than 35% of gross project costs – compared to less than 3% for oil and gas projects. This means that prior to licensing bidders need to be relatively confident of shallow geological conditions and variability thereof across the project’s footprint as well as current sedimentary processes that might affect choice of foundation concept and implications to installed facilities across the project’s life span.

To be successful, therefore, projects require front end loading of geoscience input to understand overall setting, variability and implication to foundation concepts, followed, post license award, by intensive geophysical activity to accurately map site variability to develop a shallow geologic model to be calibration by borehole and CPT to define an Engineering Ground Model to assist definition of foundation and structure choices.

This presentation will discuss and demonstrate the challenges being faced and approaches being adopted in response to efficiently deliver these projects at the scale and pace required.

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Register in advance:
https://aapg.zoom.us/meeting/register/tZYpcuiopzojGtIIzh-uA-U2SvtBC5SgRQZY
 


 

Presenter: Andy W Hill - Chair, OSIG Houston
Andy W. Hill is the Engineering Technical Authority for Marine Geohazards for BP. He is currently Chair of the OSIG Houston Committee, having been the founder of the committee in 2007. He has been a member of the UK equivalent committee since 1990. He was made a Fellow of the SUT in 2020. He has 38 years of experience in Geophysical Site Investigation, the last 32 with BP. In 1997 he championed the introduction of AUVs into deep water site investigation triggering a step change in deliver after their introduction in 2000-01. He has worked on projects globally and introduced or championed some of the most significant developments in geophysical site investigation. He has published widely on the subject and been director or contributor to numerous industry documents.
 
Organizing Committee: AAPG



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