Numerical modeling of fracking fluid migration through fault zones and fractures in the North German Basin

  title={Numerical modeling of fracking fluid migration through fault zones and fractures in the North German Basin},
  author={Helena Pfunt and Georg J. Houben and Thomas Himmelsbach},
  journal={Hydrogeology Journal},
Gas production from shale formations by hydraulic fracturing has raised concerns about the effects on the quality of fresh groundwater. The migration of injected fracking fluids towards the surface was investigated in the North German Basin, based on the known standard lithology. This included cases with natural preferential pathways such as permeable fault zones and fracture networks. Conservative assumptions were applied in the simulation of flow and mass transport triggered by a high… 
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Hydraulic fracturing in faulted sedimentary basins: Numerical simulation of potential contamination of shallow aquifers over long time scales
Hydraulic fracturing, used to economically produce natural gas from shale formations, has raised environmental concerns. The objective of this study is to assess one of the largely unexamined issues,
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In a recent article, T. Myers used MODFLOW to examine the impacts of hydraulic fracturing of the Marcellus Shale (“the Marcellus”) on groundwater flow patterns. Myers’ model includes a layer
Permeability of a fault zone crosscutting a sequence of sandstones and shales and its influence on hydraulic head distribution in the Chatsworth Formation, California, USA
Faults influence groundwater flow paths. The transport of groundwater contaminants within the faulted sandstones and shales of Chatsworth Formation exposed in southern California, USA, have been
Fault zone hydrogeology
Numerical simulation of the environmental impact of hydraulic fracturing of tight/shale gas reservoirs on near-surface groundwater: Background, base cases, shallow reservoirs, short-term gas, and water transport
This study investigates, by numerical simulation, gas and water transport between a shallow tight-gas reservoir and a shallower overlying freshwater aquifer following hydraulic fracturing operations, and concludes that the key factors driving short-term transport of gas include high permeability for the connecting pathway and the overall volume of the connecting feature.
Fluid-dynamics driving saline water in the North East German Basin
In several areas of the North German Basin, saline water comes close to, or even reaches the surface. Available data from wells indicate that brine stratification is under unstable conditions in the
A comparison of fracture transmissivities in granite water wells before and after hydrofracturing
  • D. Hart
  • Geology
    Hydrogeology Journal
  • 2015
In many regions of the world, crystalline bedrock aquifers are the only choice for groundwater supply. This is the case in northern Wisconsin, located in the upper Midwest of the continental United