The Pecos County groundwater district contracted ARS LLC in 2014 to construct an interactive 3-D model of the county’s numerous aquifers and oil and gas producing formations. Pecos County is over 5,000 square miles and has complex stratigraphy and structure and overlies the Texas oil rich Delaware Basin. Over 1,100 water, oil and gas geophysical logs and driller’s reports were used to construct this model.
This 3-D block image (SW corner looking NE) illustrates the complex stratigraphy in the eastern two thirds of the county. The western third of county is transparent. The green points represent the surface location of the injection wells and the red vertical rods represent injection intervals for very brackish to very saline produced water.
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