57. Which of the following are the major Challenges in Shale Gas Exploitation?
i) Water Contamination
ii) Land availability
iii) Fear of earthquake
iv) Lack of technology
c) Only i, ii and iii
57 Ans C
Explanation: Major Challenges in Shale Gas Exploitation:
Use of sand/ceramic and high pressure water helps to fracture the shale and shale gas escapes out through there fractures. There is fear of, this injected mixture or the escaping gas contaminating the groundwater.
Many wells will have to be dug to sustain commercially viable production. Typically100-500 sq.km land would be required.
The fracturing mixture is injected at high pressure which has been speculated to have potential to cause earthquake.
Advancement in technology has led to shale exploitation in areas which was previously impossible