1. Name one pro of natural gas compared with coal or oil. 2. 2 What is hydrologi
ID: 288702 • Letter: 1
Question
1. Name one pro of natural gas compared with coal or oil. 2. 2 What is hydrologicfracking? Describe the process. How is it different from other forms of natural gas extraction? 3. How deep are shale reservoirs compared to conventional oil and gas reservoirs? 4. What is flowback? 5. What are some of the benefits of fracking? 6. Why is there controversy surrounding fracking? What are some of the issues related to: 2 9 a. Water b. Air c. Waste d. Local communities (other issues) 7. Does the US government regulate fracking? Why or why not? 8. What about state governments? 9. Why do fracking companies keep their chemical recipes secret? 10. What effects can fracking have on human health? 11. What is the evidence for fracking causing earthquakes? 12. What ecological impacts can fracking have? 13. If there are unknowns and uncertainties about fracking, why do you think gas companies 0 continue to use the process?Explanation / Answer
Pros of natural gas: produce less pollution compared to coal and petrol.
hydrofracking: the shale gas, unlike oil, doesn't lie in porous rock(sandstone) rather it lie in nonporous and nonpermeable rock like shale therefore to extract gas we have to artificially fracture the rock using water and explosives so that we increase its permeability. this process is called hydrofracking.
depth: the are much deeper than oil reservoir the lie below water table some time 13km below the sufrace
flowback: wastewater during shale gas production
benefits of fracking: generate extra permeability and porosity
water: during hydrofracking water is send into the formation and when this water flows back it becomes very contaminated and useless.
air: benzene and toluene are produce during shale gas harmful for air quality.
waste: wastewater is the best explanation for it
community: hydrofracking produce earthquake which destructs the property of local people so it is protested by them.
Yes : since US is largest producer of shale gas.
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