Banca de QUALIFICAÇÃO: MARIA CAROLINA NEVES SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : MARIA CAROLINA NEVES SILVA
DATE: 11/04/2025
TIME: 14:30
LOCAL: Google meet
TITLE:

Experimental investigation of carbonate rock acidification under different temperature conditions

KEY WORDS:

Carbonate rock acidification; Wormholes; Temperature; Acid stimulation; Surfactants.

PAGES: 69
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Petróleo e Petroquímica
SUMMARY:

The growing global demand for energy has driven the pursuit of more efficient techniques for oil production, particularly in light of the economic and operational challenges associated with exploring new fields. Among the strategies employed to maximize hydrocarbon recovery from existing reservoirs, the acidification of carbonate rocks using hydrochloric acid (HCl) stands out as a widely adopted method to enhance formation permeability and stimulate well productivity. This process involves the selective dissolution of the rock, leading to the formation of highly conductive flow channels known as wormholes, which significantly improve reservoir conductivity. However, the efficiency of acidification is influenced by several factors, with temperature playing a crucial role, as it directly affects acid reactivity, rock dissolution rates, and the stability of the formed channels. Within this context, this study aims to investigate the effect of temperature on the acidification process of carbonate rocks using HCl combined with surfactant additives. The research seeks to understand how thermal variations influence acid-rock reaction kinetics, wormhole formation and evolution, and the overall efficiency of the stimulation process. To achieve this, laboratory experiments will be conducted, including physicochemical characterization of the acid fluid, analysis of rock and oil properties, reactive flow tests, and computed microtomography to assess the morphology of the generated flow channels. The findings will contribute to the development of optimized acidizing fluid formulations, enabling better adaptation to the thermal conditions of reservoirs and ensuring greater predictability and efficiency in hydrocarbon recovery.

COMMITTEE MEMBERS:
Presidente - 1753094 - ALCIDES DE OLIVEIRA WANDERLEY NETO
Interno - ***.674.113-** - DENNYS CORREIA DA SILVA - UFRN
Externo ao Programa - 1752014 - EDNEY RAFAEL VIANA PINHEIRO GALVAO - UFRN