There are several abandonment(wells) Actions taken to ensure permanent isolation of the fluids and pressures of exposed permeable zones within a well from the surface and from lower pressured zones steps covering this time-interval of the CCSCarbon dioxide Capture and Storage methodology, which starts with the cessation of the injectionThe process of using pressure to force fluids down wells. The steps are mostly based on a post-injectionThe process of using pressure to force fluids down wells plan, which may be already required during the project application and can serve as an overview on the necessary tasks, according to the regulations.
The requirements to prove the safety of a CO2Carbon dioxide storage(CO2) A process for retaining captured CO2, so that it does not reach the atmosphere site, such as the demonstration of long-term safety, certain modelling techniques, riskConcept that denotes the product of the probability of a hazard and the subsequent consequence of the associated event management and suitable monitoringMeasurement and surveillance activities necessary for ensuring safe and reliable operation of a CGS project (storage integrity), and for estimating emission reductions options will be discussed in this section.
The two most important factors for proving the safe containmentRestriction of the movement of a fluid to a designated volume (e.g. reservoir) of CO2Carbon dioxide in a reservoirA subsurface body of rock with sufficient porosity and permeability to store and transmit fluids are that there are no environmental problems occurring and that the integrity of the wells in the reservoirA subsurface body of rock with sufficient porosity and permeability to store and transmit fluids area is provided. Extra significant data for risk assessmentA process intended to calculate or estimate the risk to a given target, part of a risk management system are any pressure differences, the loss of injectivityA measure of the rate at which a quantity of fluid can be injected into a well, the CO2plume behaviour and that no leakage(in CO2 storage) The escape of injected fluid from the storage formation to the atmosphere or water column is detectable.