Oil and gas wells (OGWs) with integrity failures can be a conduit for methane and
contaminant leakage to groundwater aquifers, surface water bodies and the atmosphere …

Leakage of oil & gas during fossil fuel exploration, production, and transportation poses a
major environmental challenge that impacts the quality of air, water, soil, and ultimately the …

Abandoned oil and gas wells are one of the most uncertain sources of methane emissions
into the atmosphere. To reduce these uncertainties and improve emission estimates, we …

California hosts∼ 124,000 abandoned and plugged (AP) oil and gas wells,∼ 38,000 idle
wells, and∼ 63,000 active wells, whose methane (CH4) emissions remain largely …

Hundreds of thousands of documented and undocumented orphaned oil and gas wells exist
in the United States (US). These wells have the potential to contaminate water supplies …

Oil and gas well leakage is of public concern primarily due to the perceived risks of aquifer
contamination and greenhouse gas (GHG) emissions. This study examined well leakage …

Abandoned oil and gas wells can act as leakage pathways for methane, a potent
greenhouse gas, and other fluids to migrate through the subsurface and to the atmosphere …

Current approaches relating thermogenic gases to either shale source rocks (predominantly
type II kerogen) or coal source rocks (predominantly type III kerogen) are not reliable and not …

Hydrocarbon gas emissions from with decommissioned wells are an underreported source
of greenhouse gas emissions in oil and gas provinces. The associated emissions may partly …

Orphaned oil and gas wells are abandoned wells for which the cost of environmental
impacts usually falls on governments and the general public. Government agencies …