Enhancing Water Availability for Agricultural and Oilfield Applications

Abstract

The eighth chapter of the S3OK Framework reflects the collaborative efforts of the Enhancing Water Availability for Oilfield working group that emerged from the National Science Foundation–funded S3OK project. This chapter examines strategies to enhance water availability for agricultural and oilfield applications in Oklahoma. Facing projected growth in consumptive water demand—particularly from irrigated agriculture and oil and gas operations—many Oklahoma basins are expected to experience widening supply gaps, compounded by climate-driven variability and groundwater depletion. Through sustained collaboration with practitioners in the Opinion Leader Advisory Network (OLAN), the Enhancing Water Availability for Oilfield working group identified three interrelated drivers of declining water availability: changing weather and climate conditions, Eastern redcedar encroachment, and degraded soil health. A central focus is the reuse of produced water (PW) from oil and gas operations, reframed from a waste stream to a potential resource for augmenting stressed supplies. The chapter synthesizes advances in treatment trains for PW, including microbial pretreatment, oil–brine separation, membrane distillation, and resource recovery of critical minerals, and addresses regulatory pathways and cost-effectiveness. Complementary land-management strategies—redcedar control and soil health restoration—are presented as nature-based solutions that can increase effective water availability and drought resilience. Together, these integrated technical and governance approaches offer a transferable model for expanding water supplies while balancing environmental protection, economic feasibility, and social acceptability in water-scarce, energy-producing regions.