Tag Archive: groundwater

Predicting Water Resource Impacts of Unconventional Gas Using Simple Analytical Equations

In this study the authors show “that the recovery of pressure after production ceases from gas-bearing shale formations may take several hundred years, and (…) present critical hydraulic conductivity values for intervening aquitards, below which the impact on shallow aquifers will be negligible.” Abstract The rapid expansion in unconventional gas development over the past two …

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Permanent link to this article: http://frack-free.rocks/predicting-water-resource-impacts-of-unconventional-gas-using-simple-analytical-equations/

Impacts from the Hydraulic Fracturing Water Cycle on Drinking Water Resources in the United States (Final Report)

Here, the EPA is announcing the availability of the final report, Hydraulic Fracturing for Oil and Gas: Impacts from the Hydraulic Fracturing Water Cycle on Drinking Water Resources in the United States. Abstract This final report provides a review and synthesis of available scientific information concerning the relationship between hydraulic fracturing activities and drinking water …

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Permanent link to this article: http://frack-free.rocks/impacts-from-the-hydraulic-fracturing-water-cycle-on-drinking-water-resources-in-the-united-states-final-report/

Spatial Risk Analysis of Hydraulic Fracturing near Abandoned and Converted Oil and Gas Wells

This analysis shows that abandoned oil and gas wells – some of them converted into water wells – can be intersected by multiple stimulated reservoirs, and risks for intersection would increase if currently permitted horizontal wells in the Eagle Ford Shale are actually completed. Abstract Interaction between hydraulically generated fractures and existing wells (frac hits) …

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Permanent link to this article: http://frack-free.rocks/spatial-risk-analysis-of-hydraulic-fracturing-near-abandoned-and-converted-oil-and-gas-wells/

Spills of Hydraulic Fracturing Chemicals on Agricultural Topsoil

Hydraulic fracturing frequently occurs on agricultural land. Yet, the extent of sorption, transformation, and interactions among the numerous organic frac fluid and oil and gas wastewater constituents upon environmental release is hardly known. This study aimed to advance our current understanding of processes that control the environmental fate and toxicity of commonly used hydraulic fracturing …

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Permanent link to this article: http://frack-free.rocks/spills-of-hydraulic-fracturing-chemicals-on-agricultural-topsoil/

Temporal variation in groundwater quality in the Permian Basin of Texas, a region of increasing unconventional oil and gas development

In this study the researchers found that some constituents of frack fluids remained stable over time, but others experienced significant variation over the period of study. Notable findings include significant changes in total organic carbon and pH along with ephemeral detections of ethanol, bromide, and dichloromethane after the initial sampling phase. These data provide insight …

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Permanent link to this article: http://frack-free.rocks/temporal-variation-in-groundwater-quality-in-the-permian-basin-of-texas-a-region-of-increasing-unconventional-oil-and-gas-development/

Concurrence of aqueous and gas phase contamination of groundwater in the Wattenberg oil and gas field of northern Colorado

Concurrence of aqueous and gas phase contamination of groundwater in the Wattenberg oil and gas field of northern Colorado Li H, Son JH, Carlson KH. Abstract The potential impact of rapid development of unconventional oil and natural gas resources using hydraulic fracturing and horizontal drilling on regional groundwater quality has received significant attention. Major concerns …

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Permanent link to this article: http://frack-free.rocks/concurrence-of-aqueous-and-gas-phase-contamination-of-groundwater-in-the-wattenberg-oil-and-gas-field-of-northern-colorado/

Towards a Road Map for Mitigating the Rates and Occurrences of Long-Term Wellbore Leakage

Towards a Road Map for Mitigating the Rates and Occurrences of Long-Term Wellbore Leakage Key findings: “… the severity of the problem is not known because neither industry or oil and gas regulators are collecting the data.” Natural gas seeping from 500,000 wellbores represent “a threat to environment and public safety” due to groundwater contamination, …

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Permanent link to this article: http://frack-free.rocks/towards-a-road-map-for-mitigating-the-rates-and-occurrences-of-long-term-wellbore-leakage/

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