Experimental investigation on the influence of the liquid inside the tanks in the wave behavior of FLNG vessels in side-by-side offloading operations

 Detail of fenders and side-by-side connections setup. Abstract With respect to the design of FLNG systems, the sizing of tanks is a major subject that impacts several areas. The use of fewer number of tanks reduces construction costs significantly. However, very large tanks have a large liquid cargo motion. This motion inside tanks is generally […]

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Experimental Investigation on the Vortex-Induced Vibrations in Yawed Flexible Cylinders

ABSTRACT An experimental setup was built to investigate the impact of yaw angle on vortex-induced vibrations of flexible cylinders. The experiment was conducted in a towing tank with a flexible model consisting of a silicone tube filled with steel microspheres to provide a suitable dynamic behavior to obtain vibrations up to the fourth vibration mode. […]

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Dynamic Analysis of a Long Surface Casing during Installation into a Subsea Well

ABSTRACT Nowadays, a Pre-Salt development well off Brazil is drilled in 4 phases. For each phase, a string of large diameter pipe called casing is installed and cemented into the well. In order to reduce the drilling cost, a 3 phases well may be an alternative. However, this alternative implies in longer casings compared to […]

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A Time Domain Model to Evaluate the Liquid Cargo Motion Influence on the Ship Motion

ABSTRACT The motion of liquid cargo inside ship tanks is mainly studied because of the impact on the structural design of tank walls. Many effects such as sloshing, trapped waves, breaking waves occur inside a tank and the problems caused by these are more than simple structural issues. In this work the influence of the […]

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Downtime Analysis of Flng Side-by-Side Offloading System Using Coupled Multi-Body Dynamic Simulation Methodology

ABSTRACT The FLNG systems have been developed in several places around the world as an alternative to explore the large amount of gas in offshore fields. One of the biggest challenges in this system is the produced gas offloading due to the cargo cryogenic temperature. The offloading in side-by-side configuration has proven to be the […]

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Development of an Innovative Real-Time Simulator for DP-Shuttle Tanker / FPSO Offshore Connection Operation

ABSTRACT This paper discusses the prerequisites and the technical aspects of the innovative real-time simulator for DP-shuttle tanker and FPSO offshore connection operation. This simulator was developed by means of a partnership between the University of São Paulo and Petrobras. The software is based on the TPN (Numerical Offshore Tank) numerical code which had several […]

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