Implication of mineralogical and petrophysical property changes on the mechanical integrity of reservoir and seal rocks for safe CO2 storage in a carbonate reservoir, offshore Malaysia

Sponsors
Petronas

Investigators
Andreas Busch, Sebastian Geiger, Sahriza Salwani Bt MD Shah

Research
a) To identify geochemical reactions between injected CO2, formation water and reservoir/cap rocks and their effects to the fluid and rock properties (mineralogy, porosity, permeability, rock mechanical).
b) To investigate the main controlling factors impacting safe CO2 storage in carbonate reservoirs.
c) To identify the influence of depositional environment on site selection for safe CO2 storage in carbonates.
d) To provide input to test and validate the ability of numerical models to reproduce the experimental observations over short and long-time scales for CO2 storage capacity, injectivity and containment prediction for the studied area.
e) To establish broader scheme for site selection of carbonate reservoir for safe CO2 storage, incorporating depositional environment and general basin and reservoir development during burial and potential uplift events.
f) To develop screening tools for CO2 storage in carbonate reservoir, supporting general risk assessment.