Increasing attention is now directed towards the “indirect emissions” associated with extracting and processing oil and gas and transporting them to consumers. Indirect Greenhouse Gas (GHG) emissions from oil and gas operations, including both carbon dioxide and methane emissions, today are around 5,200 million tonnes (Mt) of carbon-dioxide equivalent . These emissions, which do not include any emissions associated with the actual consumption of the fuel, amount to around 15% of the energy sector’s total GHG emissions.
AIE explores these issues and explain how we are helping to reduce operators’ carbon footprints.
Integrity Assessment of CO2 Storage and Injection Wells
Ensuring the integrity of CO2 storage is critical for validating emissions reductions. AIE is a vital partner and support provider for producers that operate CO2 injection and storage wells by offering specialist technical advice in the following areas:
- Ensuring that the well components of CO2 injection wells are designed to withstand the maximum anticipated stress in axial or radial direction with a safety factor included. The loading in each of the stress directions is compared to the strength of the material in that direction. The loadings correspond to the burst, collapse, and tensile strength of the material.
- Ensuring the ongoing integrity of depleted wells to avoid creating a conduit for CO2 to reach the surface. We conduct Well Integrity Management assessments in a digitised and standardised approach utilising our VeracityWells Software.
- Introducing monitoring and field surveillance of active CO2 injection and storage wells to detect potential leakage. This is achieved via our VeracityInspection Software and Application, which is a central integrated platform for planning, executing and analysing maintenance and inspection programmes whilst enabling seamless digital reporting.
The above measures can help in reducing the risk of the injected CO2 migrating back to the surface and adding to the atmospheric concentration of CO2.
If you would like to know more about our consultancy services and how our team can support your requirements, please visit our ‘contact us’ page and we will promptly respond to your inquiry.
 H. o. t. E. S. U. Christophe McGlade, “Can CO2-EOR really provide carbon-negative oil?,” 11 April 2019. [Online]. Available: https://www.iea.org/commentaries/can-co2-eor-really-provide-carbon-negative-oil. [Accessed 2022].