2017 : Concept application for pipelines using a submerged floating tunnel for use in the oil and gas industry

Prof.Dr.Ir. I Gusti Putu Raka
Endah Wahyuni S.T., M.Sc., Ph.D


This paper describes the effort to develop a pipeline concept as a substitute for conventional pipelines that lie on the seabed. A submarine pipeline in a submerged floating tunnel (SFT) is presented as a potential way to avoid pipeline-related environmental concerns. The key task in developing this submarine pipeline concept is to integrate solutions to the environmental challenges associated with submarine pipelines into the SFT structure.From a technical standpoint, o ne of the most important design tasks is to calculate the SFT’s buoyancy weight ratio (BWR) value, thereby determining the tunnel’s stability. The greatest threat to stability is the phenomenon of tether slack, which occurs at a specific BWR value. The pipeline’s weight affects its BWR value, so the weight must be restricted to ensure that tether slack does not occur. In the present study, the proposed SFT’s BWR value was simulated by testing a …