Careful selection of the optimal storage site is the best way to manage uncertainties and minimize the risks associated with CO2 storage. Schlumberger Carbon Services has developed a range of methods, based around risk assessment, for screening geological basins and comparing different sites.
Within your area of interest, we collect the available data, rank the sites, and select candidates for further characterization to help you make an informed decision about where to invest in the next stage.
Schlumberger Carbon Services characterizes the site in detail using risk-based measurements and modeling techniques tailored to the special needs of CO2 storage. We evaluate
These data are used to model storage performance and plan monitoring and risk mitigation. Advanced modeling enables examination of geochemical and geomechanical processes to simulate and test a range of scenarios covering injection rates, fluid displacement, CO2 trapping, and containment performance.
Once the suitability of a site is confirmed, we work with you to select the optimal development plan for long-term storage, including the well location, construction techniques, and monitoring methods. Our extensive drilling and well construction experience and services deliver durable injection wells that ensure the CO2 reaches the storage target while also isolating and protecting the intervening formations. Project plans incorporate the construction of monitoring wells equipped with sensors.
Ongoing carbon dioxide monitoring is crucial to the management of performance and risk. The data from monitoring wells are used to regularly update real-time storage performance models. If a significant deviation from plan is detected, risk mitigation and remediation plans are implemented.
Each project requires its own site-specific monitoring strategy to achieve performance control and risk management, as well as comply with regulations, leveraging a combination of sensors and monitoring protocols.
Carbon dioxide monitoring strategies typically include three main types:
Schlumberger Carbon Services has designed detailed requirements for CO2 storage postinjection procedures. Each well is plugged for long-term integrity, the surface equipment removed, and appropriate monitoring continued.
High confidence in long-term integrity will only be achieved by having a site that has been well chosen, well designed, well operated, and well monitored.
One response to concerns that human activity is influencing climate has been to remove the CO2 from emissions created when carbon-based fuels are burned and sequester it deep underground.