induced seismicity
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Flow rate is a major challenge for geothermal. However, the techniques used in shale to prevent flow localization can be applied directly to geothermal. If we can create hundreds or thousands of flowing fracture pathways around a horizontal or deviated geothermal well, then we will have truly “changed the game.”
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Broad consensus is forming on the need for a massive expansion in global carbon capture and storage (CCS) capacity. But what are the uncertainties, bottlenecks, and opportunities in the subsurface that await CCS planners?
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This paper presents a coupled 3D fluid-flow and geomechanics simulator developed to model induced seismicity resulting from wastewater injection.
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New research links a rise in seismic activity in West Texas with increased oil and gas development over the past 20 years and, in particular, the past decade.
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The decision comes 2 months after UK shale operator Cuadrilla Resources halted stimulation work at its Preston New Road site in Lancashire because of a magnitude 2.9 seismic event.
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Researchers mapped 251 faults in the North Texas home of the Barnett Shale, the birthplace of the shale revolution, finding that wastewater injection there “significantly increases the likelihood for faults to slip.”
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Management of produced water is driving subtle yet potentially consequential changes in certain regions. Contributing factors for seismicity and well pressurization, while different, share some elements. By assessing these common elements, partial risk profiles for both conditions can be assessed.
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Cuadrilla has encountered its first bumps in the road while fracturing its Preston New Road shale gas well, with two quakes already temporarily halting injection operations.
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Stanford researchers have mapped local susceptibility to man-made earthquakes in Oklahoma and Kansas. The new model incorporates physical properties of the Earth’s subsurface and forecasts a decline in potentially damaging shaking through 2020.
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Stanford geoscientists have found a way to detect thousands of tiny tremors around hydraulic fracturing operations that could serve as predictors of eventual larger earthquakes.