This paper is focused on determining the methane and carbon dioxide concentrations around an oil and gas production site. Air quality monitors were installed outside homes adjacent to a new multiwell pad. We used the Y-POD sensor system platforms outfitted with low-cost NDIR, metal oxide, and electrochemical type gas sensors as well as temperature, pressure, and humidity sensors. Soil gas sampling systems installed alongside air quality monitors were comprised of a stainless-steel probe, (diameter 1.2 cm), leading to an enclosure with gas sensors. Each probe was installed at 1-meter depth and a pump was used to draw air (1L/min) from the probe to a sensor enclosure. An anemometer was also installed outside one of the homes to monitor wind speed and direction. Measurements continued during drilling, hydraulic fracturing, and production phases. The sensors were periodically collocated with reference instruments at a nearby regulatory air quality monitoring site towards calibration via field normalization and validation. We present measurements of CH4 and CO2 in context with wellpad activities and local meteorology.
Soil-atmosphere measurements of CO2 and CH4, surrounding Drilling and Hydraulic Fracturing activities in Greeley, CO, USA,
Ana M. C. Ilie;Carmela Vaccaro
2018
Abstract
This paper is focused on determining the methane and carbon dioxide concentrations around an oil and gas production site. Air quality monitors were installed outside homes adjacent to a new multiwell pad. We used the Y-POD sensor system platforms outfitted with low-cost NDIR, metal oxide, and electrochemical type gas sensors as well as temperature, pressure, and humidity sensors. Soil gas sampling systems installed alongside air quality monitors were comprised of a stainless-steel probe, (diameter 1.2 cm), leading to an enclosure with gas sensors. Each probe was installed at 1-meter depth and a pump was used to draw air (1L/min) from the probe to a sensor enclosure. An anemometer was also installed outside one of the homes to monitor wind speed and direction. Measurements continued during drilling, hydraulic fracturing, and production phases. The sensors were periodically collocated with reference instruments at a nearby regulatory air quality monitoring site towards calibration via field normalization and validation. We present measurements of CH4 and CO2 in context with wellpad activities and local meteorology.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
