Advanced Studies in Offshore Geotechnics

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Coastal Engineering".

Deadline for manuscript submissions: 25 August 2025 | Viewed by 289

Special Issue Editor

Institute of Marine Structures and Naval Architectures, Zhejiang University, Hangzhou 310015, China
Interests: offshore geotechnical engineering

Special Issue Information

Dear Colleagues,

The field of offshore geotechnics plays a crucial role in the safe and efficient design, construction, and operation of offshore infrastructure, including wind farms, oil and gas platforms, and subsea pipelines. This Special Issue on “Advanced Studies in Offshore Geotechnics” aims to highlight recent developments, innovative methodologies, and emerging challenges in the discipline.

Key topics covered in this Special Issue include offshore foundation engineering, with a focus on novel foundation systems such as suction caissons, monopiles, and hybrid foundations. Contributions explore the geotechnical behavior of seabed sediments, including soil/rock–structure interaction under complex loading conditions, cyclic and dynamic soil/rock responses, and advanced constitutive modeling for offshore applications.

Advancements in numerical and physical modeling techniques are also emphasized, including the application of finite element methods, machine learning, and centrifuge model testing for simulating offshore geotechnical problems. In addition, this Special Issue addresses the geohazard assessment, covering submarine landslides, soil liquefaction, and the impact of extreme environmental conditions on foundation stability.

Sustainable offshore development is another focal point, featuring research on the geotechnical challenges of floating offshore wind turbines, deep-sea mining, and carbon storage initiatives. Studies on innovative materials, such as bio-cemented soils and fiber-reinforced seabed stabilization techniques, are also presented.

By bringing together cutting-edge research, this Special Issue aims to foster collaboration among academics, engineers, and industry professionals, providing insights into future trends and technological advancements in offshore geotechnics. The findings will contribute to improving the safety, reliability, and sustainability of offshore infrastructure worldwide.

Dr. Jiayi Shen
Guest Editor

Manuscript Submission Information

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Keywords

  • offshore geotechnics
  • seabed soil/rock–structure interaction
  • offshore foundation engineering
  • dynamic and cyclic soil/rock behavior
  • geohazard assessment
  • numerical and physical modeling
  • submarine landslides and liquefaction
  • floating offshore wind turbines
  • sustainable offshore development
  • carbon storage and deep-sea mining

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Published Papers (1 paper)

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Research

13 pages, 1534 KiB  
Article
Numerical Investigation of Offshore CCUS in Deep Saline Aquifers Using Multi-Layer Injection Method: A Case Study of the Enping 15-1 Oilfield CO2 Storage Project, China
by Jiayi Shen, Futao Mo, Zhongyi Tao, Yi Hong, Bo Gao and Tao Xuan
J. Mar. Sci. Eng. 2025, 13(7), 1247; https://doi.org/10.3390/jmse13071247 - 28 Jun 2025
Viewed by 148
Abstract
Geological storage of CO2 in offshore deep saline aquifers is widely recognized as an effective strategy for large-scale carbon emission reduction. This study aims to assess the mechanical integrity and storage efficiency of reservoirs using a multi-layer CO2 injection method in [...] Read more.
Geological storage of CO2 in offshore deep saline aquifers is widely recognized as an effective strategy for large-scale carbon emission reduction. This study aims to assess the mechanical integrity and storage efficiency of reservoirs using a multi-layer CO2 injection method in the Enping 15-1 Oilfield CO2 storage project which is the China’s first offshore carbon capture, utilization, and storage (CCUS) demonstration. A coupled Hydro–Mechanical (H–M) model is constructed using the TOUGH-FLAC simulator to simulate a 10-year CO2 injection scenario, incorporating six vertically distributed reservoir layers. A sensitivity analysis of 14 key geological and geomechanical parameters is performed to identify the dominant factors influencing injection safety and storage capacity. The results show that a total injection rate of 30 kg/s can be sustained over a 10-year period without exceeding mechanical failure thresholds. Reservoirs 3 and 4 exhibit the greatest lateral CO2 migration distances over the 10-year injection period, indicating that they are the most suitable target layers for CO2 storage. The sensitivity analysis further reveals that the permeability of the reservoirs and the friction angle of the reservoirs and caprocks are the most critical parameters governing injection performance and mechanical stability. Full article
(This article belongs to the Special Issue Advanced Studies in Offshore Geotechnics)
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