Banca de QUALIFICAÇÃO: VICTOR MACHADO MATHIAS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : VICTOR MACHADO MATHIAS
DATE: 19/11/2019
TIME: 08:30
LOCAL: Auditório do CT (UFRN)
TITLE:

Technical Analysis of Polymer Alternating Gas Injection in a Light Oil Carbonate Reservoir 

KEY WORDS:

Pre-salt, CO₂ flooding, Polymer flooding, Polymer Alternating Gas Injection, PAG

PAGES: 115
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Although a phase of energy transition is taking place in the world, with high growth in interest and consumption of renewable energies, oil is still the world's leading energy matrix. In Brazil, oil accounts for almost half of the available energy supply, which makes clear the importance of the oil industry in the country. National oil and gas production has had a significant increase in the last 21 years and this was mainly due to the production of Brazilian Pre-salt. Due to the great potential of pre-salt production, Brazil is today one of the protagonists in the offshore oil and gas production. A relevant characteristic of the oil produced in this province is the high concentration of carbon dioxide (CO₂) in its composition and this motivated the injection of this gas in reservoirs of some fields, such as Lapa. In this field the method of water alternating gas injection (WAG) is already used in order to avoid excess CO₂ in the atmosphere as well as to facilitate the arrival of oil in producing wells. An alternative and innovative method to WAG injection that has been studied is polymer alternating gas injection (PAG). In this context, this work aimed, through numerical simulation, to perform the modeling of a reservoir with characteristics of the Brazilian Pre-salt, together with the application of PAG injection in this model comparing its results with WAG injection. To simulate the methods in question, the GEM simulator from CMG (Computer Modeling Group) was used. Initially the continuous CO₂ flooding and continuous polymer flooding methods were simulated, then the PAG and WAG injections were also simulated and their results compared. By observing the results obtained the PAG injection was technically better than the WAG injection, increasing the accumulated oil production by 8.54% and consequently achieving a higher recovery factor.

BANKING MEMBERS:
Presidente - 1679234 - JENNYS LOURDES MENESES BARILLAS
Externo ao Programa - 1754344 - MARCOS ALLYSON FELIPE RODRIGUES
Interno - 1149372 - TARCILIO VIANA DUTRA JUNIOR