A comprehensive study of fracturing fluids and corresponding flowback can develop understanding of in-bore chemical transformations. A series of five injection fluids and five flowback samples was obtained from a single unconventional gas well located in northeastern, PA. A comparison of organic and inorganic transformations in the fluids during hydraulic fracturing was performed using GCxGC-TOFMS and ICP-AES, respectively. The findings provide insight into how fracturing fluids react with shale and formation fluids and thus change the composition and chemistry of the flowback fluids. A more complete understanding of chemical changes during hydraulic fracturing can help redesign fluids or guide preemptive actions to reduce undesired constituents from returning to the surface following gas extraction.

Organic and inorganic characterization of injected hydraulic fracturing fluids and corresponding flowback

251st National Meeting (2016)

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