International Journal of Energy Science and Engineering
Articles Information
International Journal of Energy Science and Engineering, Vol.4, No.3, Sep. 2018, Pub. Date: Oct. 9, 2018
Installation Failures of Flexible and Umbilical Lines
Pages: 34-43 Views: 104 Downloads: 182
Authors
[01] Felippe Thurler Schimidt, Electrical Engineering Department, Fluminense Federal University, Niterói, Brazil.
[02] Marcio Zamboti Fortes, Electrical Engineering Department, Fluminense Federal University, Niterói, Brazil.
Abstract
In offshore operations, the installation of flexible lines and umbilicals in producing wells at high water depths is a critical step, since these lines and the installation vessel are subjected to high loads during this operation. As a result, the installation operation must be studied and evaluated before its viability can be determined according to the characteristics of the field and the characteristics of a particular installation ship. During the installation, a series of hydrostatic, pneumatic, and electrical tests need to be made on the installation ship in order to validate and condition the flexible line and umbilical to be used in the offshore field. The main objective of this paper is to present the most common operational failures that occur during installation of flexible and umbilical lines and, the consequences of the damage caused by these failures to the components. These critical failures are explained to determine whether they could cause lose in components functionality in the offshore field and if these failures can cause injury to the workers. The more critical operating faults during the loading, handling, and installation are described and a brief description of each of these failures is presented. The result of this article is a text with illustrations that can serve as a query to interest in the issues related to installations engineering.
Keywords
Maintenance, Security, Risk Assessment
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