Ana Sousa

Ana Sousa
Technical University of Lisbon | UTL · Centre for Natural Resources and Environment (CERENA)

Master of Engineering

About

18
Publications
7,408
Reads
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80
Citations
Additional affiliations
April 2018 - present
Technical University of Lisbon
Position
  • Researcher
September 2017 - March 2018
Technical University of Lisbon
Position
  • Researcher
Description
  • Research activities within a partnership between the University and the Industry. Funded by Partex Oil & Gas.
October 2007 - June 2016
Atkins Global
Position
  • Engineer
Education
April 2018 - March 2022
Technical University of Lisbon
Field of study
  • Petroleum Engineering
October 2013 - November 2016
Technical University of Lisbon
Field of study
  • Petroleum Engineering
October 2009 - September 2010
Technical University of Lisbon
Field of study
  • Management

Publications

Publications (18)
Article
In the petroleum industry, oil and water emulsions are frequent, not only in oilfield operations but also during the transportation and refining processes. Once depicting emulsion formation and stabilization, it is essential to analyse how it is possible to reverse the process, demulsifying the emulsion. Depending on operating conditions and fluid...
Article
Full-text available
To predict the superficial ground temperature due to solar radiation as a function of the depth and rock physical properties, the Finite Volume Method was employed upon an energy conservation model. ANSYS Transient Thermal was selected to simulate a 3D geological volume, 1625 m wide, 2000 m long and with variable height as a function of topographic...
Article
Full-text available
Deposition of waxes, asphaltenes, scales or hydrates is one of the most challenging operational problems in the oil and gas industry, both during production and transportation. Direct inspection procedures, such as employing a closed-circuit television system, allow visual assessment of the blockage, yet discretely in time and, consequently, of low...
Article
Fixed ocean structures safe and economical usage is usually limited by its fatigue resistance. Thus, the remaining fatigue life (RFL) assessment of such structures is essential to evaluate its collapse risk, to extend its service beyond an initially established horizon and to allow evidence-based inspection planning. While numerous approaches have...
Chapter
Full-text available
Have not only water-in-oil emulsions been a ubiquitous flow assurance challenge in oilfield operations, but also future perspectives suggest its increasing importance. In fact, as oil reserves are becoming depleted, the crude oil is becoming heavier, and the quantity of produced water is increasing. Understanding water-in-oil emulsions behaviour is...
Article
Full-text available
In line with the growing environmental awareness developed along the last decades, modern societies are urged to evolve into sustainable economics where the reuse of organic wastes represents the key feedstock for a green transaction. The oil phase obtained from different biomasses has the potential to be a source of food supplements, medicines, co...
Article
Full-text available
Wax deposition inside the tubing walls endures being a critical operational challenge faced by the petroleum industry. The build-up of wax deposits may lead to the increase of pumping power, as well as the decrease of flow rate or, even, to the total blockage, with production losses and high operational costs. The current paper is a critical review...
Article
Full-text available
Throughout the last two decades, seismic design standards evolved to ever more comprehensive and detailed prescriptions, stressing out the need for design methods that deal with earthquake effects not as actions, but as a design philosophy. The Eurocode 8 adoption as national law throughout the European Union countries and informally in many parts...
Article
Full-text available
Wax deposition is one of the most challenging flow assurance issues in oil production processes. The related problems span from reservoirs to refineries, but their consequences can be particularly challenging when the affected area is difficult to reach, such as producing wells. The wax deposition in the areas adjoining the bore, the bore face, the...
Preprint
Albeit its constitutional claim for quality, Brazilian academia has largely been referred to as unmeritocratic and academic hiring is still inward-oriented. Lattes platform, a public curricular information system, reflects elements of this protectionism. This article assesses two ‘obsessions’ in Brazilian academia: (i) the ‘mandatory’ Lattes CV, an...
Thesis
Wax deposition is a flow assurance challenge, causing operational problems in the petroleum industry. Flowing through the production and transport infrastructures, crude oil is prone to cooling effects to the surrounding areas. If the temperature of a waxy crude oil drops below the wax appearance temperature (WAT), solid paraffin crystals will star...
Thesis
Prediction of maximum local scour depth at bridge complex piers is necessary for safety and economy of bridges’ design. In references, numerous methods are available to predict the equilibrium scour depths. Validation of these methods is important in order to choose which one will give a reasonable prediction of the local scour depth. In this study...

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Projects

Projects (3)
Archived project
To judge some critical current practices in Brazilian academia, that in our view are seriously jeopardizing country's development in Higher Education and Science. New policies must be implemented if Brazil wants to stand alongside the most powerful nations in Higher Education and Science, two crucial vectors of any economy. Why Brazil ? We know its current reality, we like the country, and we believe in its potential. We also wish this research can improve other nations' Higher Education and Science policies. For a more sustainable academia!