Banca de QUALIFICAÇÃO: GUILHERME MENTGES ARRUDA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : GUILHERME MENTGES ARRUDA
DATE: 15/09/2023
TIME: 14:00
LOCAL: Online – Google Meet
TITLE:

DEVELOPMENT AND EVALUATION OF ACID SOLUTIONS CONTAINING POLYETHOXYLATED NONYLPHENOLS AND ETHANOL FOR THE ACID STIMULATION OF CARBONATE MATRICES

KEY WORDS:

Matrix acidizing, Acid stimulation, Carbonate, Non-ionic surfactants, Nonylphenol ethoxylate.

PAGES: 110
BIG AREA: Engenharias
AREA: Engenharia Nuclear
SUMMARY:

During the different stages of well development and reservoir exploration, there is the possibility of the occurrence of unwanted phenomena that alter the permeability of the region (formation damage), compromising the production of hydrocarbons. The well stimulation techniques seek to bypass or reverse this damage and, consequently, increase production. Matrix acidizing in carbonates consists of injecting an acidic fluid into the well to increase its production by dissolving the rock matrix itself, creating pathways known as wormholes. Hydrochloric acid (HCl) is the most used substance to stimulate production or injection wells in carbonate reservoirs. However, the high reaction rate of HCl with carbonate reduces its penetration into the rock formation since the acid reacts excessively with the surface of the reservoir (face dissolution). Thus, to minimize acid consumption and increase the depth of wormholes, it is necessary to develop stimulation fluids containing additives that reduce the dissolution rate of the carbonate matrix by acid. The present study aims to develop stimulation fluids and investigate the physicochemical phenomena of alcoholic micellar systems containing ethanol, 15% HCl (w/w) and polyethoxylated nonylphenol with 11, 40 or 100 ethoxy groups (NP 11EO, NP 40EO or NP 100EO, respectively) in the creation of wormholes in acid stimulation processes in carbonates. To do so, characterization analyses will be carried out for the fluids developed and carbonate samples. In addition, compatibility tests of the components of the developed fluids, reactive flow in porous media tests (injection of the formulations in rock samples) and computerized microtomography of acidified rocks will be performed. Therefore, it is expected to obtain delayed action stimulation fluids that are stable, easy to prepare and with adequate physicochemical characteristics for a more efficient acid stimulation of carbonate matrices.

COMMITTEE MEMBERS:
Presidente - 1753094 - ALCIDES DE OLIVEIRA WANDERLEY NETO
Externo à Instituição - DENNYS CORREIA DA SILVA
Externo ao Programa - 1752014 - EDNEY RAFAEL VIANA PINHEIRO GALVAO - nullExterno ao Programa - 1198847 - JOSE LUIS CARDOZO FONSECA - nullExterno ao Programa - 1754344 - MARCOS ALLYSON FELIPE RODRIGUES - nullInterna - 347057 - TEREZA NEUMA DE CASTRO DANTAS