As an optional activity, also watch this fracking video from a group in Germany: Discuss with a partner how you could determine which of the two videos are more accurate and better describe the process? Now that thought a bit about the hydrofracking process itself, what kinds of we’ve stresses would be generated when fluids are injected into the shales during hydrofracking? Sketch the stress directions on the above figure that you think the hydrofracking process would create. Do you think the stresses created by hydrofracking as you sketched above could cause earthquakes? Why or why not? Now, watch this video by the Ohio Department of Natural Resources about wastewater disposal (or Class II injection wells): Describe the process of wastewater disposal. Does disposal take place in vertical or horizontal wells? In Ohio, are disposal fluids ever exposed to the outside, or are they contained either within storage or on trucks? What type of layer (permeable or impermeable) are fluids pumped into? Why is this important?
As an optional activity, also watch this fracking video from a group in Germany: Discuss with a partner how you could determine which of the two videos are more accurate and better describe the process? Now that we’ve thought a bit about the hydrofracking process itself, what kinds of stresses would be generated when fluids are injected into the shales during hydrofracking? Sketch the stress directions on the above figure that you think the hydrofracking process would create. Do you think the stresses created by hydrofracking as you sketched above could cause earthquakes? Why or why not? Now, watch this video by the Ohio Department of Natural Resources about wastewater disposal (or Class II injection wells): Describe the process of wastewater disposal. Does disposal take place in vertical or horizontal wells? In Ohio, are disposal fluids ever exposed to the outside, or are they contained either within storage or on trucks? What type of layer (permeable or impermeable) are fluids pumped into? Why is this important?
student_worksheet_quotinduced_seism.v2.docx