Recent advances in offshore geotechnics for deep water oil and gas developments
Recent advances in offshore geotechnics for deep water oil and gas developments
The paper presents an overview of recent developments in geotechnical analysis and design associated with oil and gas developments in deep water. Typically the seabed in deep water comprises soft, lightly overconsolidated, fine grained sediments, which must support a variety of infrastructure placed on the seabed or anchored to it. A particular challenge is often the mobility of the infrastructure either during installation or during operation, and the consequent disturbance and healing of the seabed soil, leading to changes in seabed topography and strength. Novel aspects of geotechnical engineering for offshore facilities in these conditions are reviewed, including: new equipment and techniques to characterise the seabed; yield function approaches to evaluate the capacity of shallow skirted foundations; novel anchoring systems for moored floating facilities; pipeline and steel catenary riser interaction with the seabed; and submarine slides and their impact on infrastructure. Example results from sophisticated physical and numerical modelling are presented.
Anchors, Geotechnical engineering, In situ testing, Offshore engineering, Pipelines, Shallow foundations, Submarine slides
818-834
Randolph, Mark F.
75caa33a-e630-4ae8-84cd-758797bf9633
Gaudin, Christophe
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Gourvenec, Susan M.
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White, David J.
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Boylan, Noel
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Cassidy, Mark J.
095b5237-97db-4ee5-9cb1-0b68d4731497
May 2011
Randolph, Mark F.
75caa33a-e630-4ae8-84cd-758797bf9633
Gaudin, Christophe
fb56af7b-bc67-429c-a507-d26249fba84d
Gourvenec, Susan M.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
White, David J.
a986033d-d26d-4419-a3f3-20dc54efce93
Boylan, Noel
a74ded07-8f6f-4198-bdc9-76e9693091b1
Cassidy, Mark J.
095b5237-97db-4ee5-9cb1-0b68d4731497
Randolph, Mark F., Gaudin, Christophe, Gourvenec, Susan M., White, David J., Boylan, Noel and Cassidy, Mark J.
(2011)
Recent advances in offshore geotechnics for deep water oil and gas developments.
Ocean Engineering, 38 (7), .
(doi:10.1016/j.oceaneng.2010.10.021).
Abstract
The paper presents an overview of recent developments in geotechnical analysis and design associated with oil and gas developments in deep water. Typically the seabed in deep water comprises soft, lightly overconsolidated, fine grained sediments, which must support a variety of infrastructure placed on the seabed or anchored to it. A particular challenge is often the mobility of the infrastructure either during installation or during operation, and the consequent disturbance and healing of the seabed soil, leading to changes in seabed topography and strength. Novel aspects of geotechnical engineering for offshore facilities in these conditions are reviewed, including: new equipment and techniques to characterise the seabed; yield function approaches to evaluate the capacity of shallow skirted foundations; novel anchoring systems for moored floating facilities; pipeline and steel catenary riser interaction with the seabed; and submarine slides and their impact on infrastructure. Example results from sophisticated physical and numerical modelling are presented.
Text
2011_Ocean_Engineering 38_818-834 Randolph et al
- Accepted Manuscript
More information
Published date: May 2011
Keywords:
Anchors, Geotechnical engineering, In situ testing, Offshore engineering, Pipelines, Shallow foundations, Submarine slides
Identifiers
Local EPrints ID: 414560
URI: http://eprints.soton.ac.uk/id/eprint/414560
ISSN: 0029-8018
PURE UUID: 7135ba86-0823-4241-af70-e8631346c290
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Date deposited: 04 Oct 2017 16:30
Last modified: 16 Mar 2024 04:31
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Contributors
Author:
Mark F. Randolph
Author:
Christophe Gaudin
Author:
Noel Boylan
Author:
Mark J. Cassidy
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