Drone-based Methane Surveys

_{Using uncrewed aerial systems to detect, map, and characterize methane emissions from energy infrastructure}

Dr. Bishop’s drone-based methane survey research uses uncrewed aerial systems, mobile sensing, and geospatial data analytics to detect, map, and characterize methane emissions from energy infrastructure. The work focuses on practical field applications such as natural gas compressor stations, coalfield energy sites, plume mapping, source localization, and emissions-screening workflows that support safety, environmental stewardship, and responsible resource development.

_{Mobile methane detection}

Drone-based methane surveys allow sensors to be moved through and around a site in three dimensions. Rather than relying only on fixed monitoring points or ground-based walking surveys, drones can collect measurements above, around, and downwind of potential emission sources. This approach is especially valuable at complex facilities where equipment spacing, terrain, fencing, safety restrictions, or access limitations can make ground surveys slower or less complete.

_{Natural gas infrastructure monitoring}

Methane emissions can occur from valves, flanges, connectors, tanks, vents, compressors, and other components across natural gas systems. EPA notes that components near compressors can be especially prone to leaks because of vibration and temperature or pressure variation associated with compressor operation. Dr. Bishop’s drone-based survey work supports improved screening of these types of sites by combining aerial mobility with methane sensing and spatial data collection.

_{Compressor station surveys}

Compressor stations are important monitoring targets because they contain multiple potential emission points, including compressor seals, valves, piping connections, pneumatic systems, storage equipment, and venting locations. Drone-based surveys can help characterize methane concentration patterns around these facilities and support follow-up inspection, maintenance, and emissions-reduction planning.

_{Plume mapping and source localization}

A core research objective is to better understand how methane plumes move through real field environments. Wind direction, turbulence, topography, equipment layout, and facility geometry all influence methane dispersion. Drone-collected methane data can be combined with GPS coordinates, altitude, wind observations, flight paths, and site imagery to help identify likely source areas and visualize plume behavior.

_{Data analytics and visualization}

Drone methane surveys generate spatially referenced data that can be converted into maps, profiles, and visual summaries. These outputs can help communicate where elevated methane readings were observed, how concentrations changed across a site, and where more detailed ground verification may be needed.

_{Safer and more efficient field assessment}

Drone-based methane surveys can reduce the need for personnel to physically access every potential emission location during an initial screening survey. This can be useful at active industrial sites, remote locations, steep or uneven terrain, fenced facilities, or areas where conventional access is limited. While drone surveys do not replace all ground-based verification, they can help prioritize where detailed inspection and repair efforts should be focused.

For more information, please contact Dr. Richard E. Bishop.