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| Author(s): |
Guilherme Nascimento Rodrigues Teixeira
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica |
| Defense date: | 2013-08-29 |
| Examining board members: |
Denis José Schiozer;
Osvair Vidal Trevisan;
Geraldo Afonso Spinelli Martins Ribeiro
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| Advisor: | Denis José Schiozer |
| Abstract | |
Subsea processing is considered a potential technology to increase production in deepwater fields and reduce, in some cases, costs related to surface facilities. It can be defined as any treatment of the produced fluids performed on the seabed. Among the available technologies, Subsea Gas- Liquid Separation (SGLS) is the most advanced for deep water applications. The most recommended way to quantify the long term advantages of this technology is through Integrated Production Modeling (IPM), which integrates reservoir and surface facilities models into a single model. The motivation of the present work is the need to quantify the incremental oil recovery that might be achieved through subsea processing. The objective is to compare the production of a reservoir through two artificial lift methods: SGLS and Continuous Gas Lift (CGL). The comparison between SGLS and CGL was performed in two case studies. In the first one, a homogeneous reservoir model was used, so the comparison was focused on the artificial lift technologies. In the second case, a heterogeneous reservoir model, built with real data, was used to compare both methods in a more realistic reservoir scenario. The results showed the capability of anticipating production by the reduction of the backpressure and the increase of the drawdown through SGLS. Besides, reservoir pressure maintenance appeared as key element for this technology. A combination of the technologies (SGLS + CGL) was found to be a good option to increase oil production during the revitalization phase of the field. SGLS was able to produce the same volume of oil obtained with CGL using a smaller tubing and production diameter. IPM showed a more flexible option to simulate scenarios with technological constraints, capturing effects that are difficult to be caught using only reservoir simulation (AU) | |
| FAPESP's process: | 06/01958-0 - Risk assessment applied to mature fields |
| Grantee: | Guilherme Nascimento Rodrigues Teixeira |
| Support Opportunities: | Scholarships in Brazil - Master |