Capturing well integrity loss through measurements of methane and ethane emissions from surface casing vents and soils surrounding oil and gas wells

Key Points

• Well integrity loss is linked to increased methane and ethane emissions from surrounding soils.
• Key evidence reveals significant emissions, with methane concentrations exceeding 500 ppm in surface samples.
• Observational analysis of surface casing vents and soil measurements was conducted at various oil and gas wells.
• Highlighting the importance of monitoring emissions for assessing environmental risks and compliance.