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Leaving No Stone Unturned

Southwestern Energy’s talented geoscientists are guided by experience, vision, and an innate curiosity to explore. Geologic surveys and mapping, seismology and exploratory drilling are all used to explore for natural gas and oil reserves. Exploring an area of interest begins with an analysis of existing data including studies of surface geology, existing well log information, production information, and gas and oil shows from drilling. We also analyze 2-D and 3-D seismic data as well as gravity, magnetic and other remote sensing statistics to help guide us in determining if the potential for gas or oil exists.A structure map of the subsurface is also created along with other geological and geophysical maps. These maps help determine if there is potential for trapped oil or gas in the formation. Geologists work within a team of geoscientists, engineers, landmen and others to select the best location to drill a test well. By using the most up-to-date technology, we can more accurately locate and assess underground reservoirs with minimal impact on the surface.

3-D Seismic

Our geologists evaluate and map the surface topography, while our geophysicists use the latest 3-D seismic techniques and processing to create detailed images of the subsurface layers. This technology helps us know where to drill by using sound waves to create 3-D maps of rock formations lying thousands of feet below the earth’s surface. Seismic data is invaluable when exploring the subsurface as it paints a realistic picture of the complexity and depth of the geology below. Advances in seismic imaging have greatly changed natural gas and oil exploration. Exploration teams can now more easily identify prospects, place wells more effectively, reduce the number of dry holes drilled, reduce drilling costs and cut exploration time.
Seismic 3-D