Name: ANDRES ALEXSANDER RIBEIRO DA SILVA GRACIANO
Type: MSc dissertation
Publication date: 27/01/2023
Advisor:
Name |
Role |
|---|---|
| WELLINGTON BETENCURTE DA SILVA | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| JOSÉ JOAQUIM CONCEIÇÃO SOARES SANTOS | Internal Examiner * |
| JULIO CESAR SAMPAIO DUTRA | Co advisor * |
| WELLINGTON BETENCURTE DA SILVA | Advisor * |
Summary: The solid deposition inside of flowlines is a major problem in terms of flow assurance once these deposits may obstruct the flowlines leading to big financial losses. The low temperatures found in the seabed benefits the occurrence of such deposits, mainly the deposits of paraffins and hydrates. In this sense, many efforts are employed aiming to mitigate, or at least to attenuate, the problem of solid deposition among which may be found the use of ¬pipe-in-pipe system associated with active electric heating. Also, the computational simulation shows to be a great ally in combating these problems. Nonetheless, these simulations might be computationally expensive such a way the use of metamodels, which are cheaper computational models, shows to be an alternative. Thus, in this work, is proposed the use of a Echo State Network based metamodel to the problem of stagnant production fluid cooling in a subsea pipe-in-pipe system with active electric heating so that the employed metamodel showed to be, on average, thirty-one times faster than the Finite Volume Method based model.
