Date of Award
Spring 5-2012
Degree Type
Thesis
Degree Name
M.S.
Degree Program
Naval Architecture and Marine Engineering
Department
Naval Architecture and Marine Engineering
Major Professor
Dr. Brandon M. Taravella
Second Advisor
Dr. Lothar Birk
Third Advisor
Dr. Nikolaos Xiros
Abstract
Subsea pipelines are used extensively throughout the world’s oceans to transport oil and gas from offshore facilities to land, often hundreds of miles. These pipelines range in diameter from three to sixty inches and are installed in deeper depths every year, currently as deep as 2,900 meters. Pipeline construction and installation costs are a large percentage of offshore projects and thus, methods toward reducing costs is an imperative objective. With pipeline installation projects taking place in harsher environments, vessel operability is vital. This work presents an improved method for determining limiting criteria for pipelay operations to more effectively plan and execute offshore projects. This improvement is based on the consideration of total effective pipeline stresses as the limiting criterion rather than the traditionally used limiting pitch angle. Limiting sea curves based on a sample dynamic pipeline analysis are shown and their incorporation in workability planning is discussed.
Recommended Citation
Givan, Daniel Rey, "Improved operational limits for offshore pipelay vessels" (2012). University of New Orleans Theses and Dissertations. 1439.
https://scholarworks.uno.edu/td/1439
Rights
The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this dissertation or thesis in whole or part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the thesis or dissertation.