Correct
Solution (b)
Cairn Oil & Gas has announced that it is partnering US-based Halliburton to start shale exploration in the Lower Barmer Hill formation, Western Rajasthan.
The key difference between shale oil and conventional crude is that the former, also called ‘tight oil’, is found in smaller batches, and deeper than conventional crude deposits. Its extraction requires creation of fractures in oil and gas rich shale to release hydrocarbons through a process called hydraulic fracking.
Currently, there is no large-scale commercial production of shale oil and gas in India. State-owned ONGC had, in 2013, started exploration and, by the end of FY21, assessed shale oil and gas potential in 25 nomination blocks, but has reduced investments over the past few years after only getting limited success in shale exploration efforts.
Russia and the US are among the largest shale oil producers in the world, with a surge in shale oil production in the US having played a key role in turning the country from an importer of crude to a net exporter in 2019.
Shale oil and gas exploration faces several challenges other than environmental concerns around massive water requirements for fracking and potential for ground water contamination.
While sometimes called “shale oil”, tight oil should not be confused with oil shale (shale rich in kerogen) or shale oil (oil produced from oil shales). Therefore, the International Energy Agency recommends using the term “light tight oil” for oil produced from shales or other very low permeability formations, while the World Energy Resources 2013 report by the World Energy Council uses the terms “tight oil” and “shale-hosted oil”
Article Link:
https://indianexpress.com/article/explained/shale-oil-exploration-potential-explained-7630082/
Incorrect
Solution (b)
Cairn Oil & Gas has announced that it is partnering US-based Halliburton to start shale exploration in the Lower Barmer Hill formation, Western Rajasthan.
The key difference between shale oil and conventional crude is that the former, also called ‘tight oil’, is found in smaller batches, and deeper than conventional crude deposits. Its extraction requires creation of fractures in oil and gas rich shale to release hydrocarbons through a process called hydraulic fracking.
Currently, there is no large-scale commercial production of shale oil and gas in India. State-owned ONGC had, in 2013, started exploration and, by the end of FY21, assessed shale oil and gas potential in 25 nomination blocks, but has reduced investments over the past few years after only getting limited success in shale exploration efforts.
Russia and the US are among the largest shale oil producers in the world, with a surge in shale oil production in the US having played a key role in turning the country from an importer of crude to a net exporter in 2019.
Shale oil and gas exploration faces several challenges other than environmental concerns around massive water requirements for fracking and potential for ground water contamination.
While sometimes called “shale oil”, tight oil should not be confused with oil shale (shale rich in kerogen) or shale oil (oil produced from oil shales). Therefore, the International Energy Agency recommends using the term “light tight oil” for oil produced from shales or other very low permeability formations, while the World Energy Resources 2013 report by the World Energy Council uses the terms “tight oil” and “shale-hosted oil”
Article Link:
https://indianexpress.com/article/explained/shale-oil-exploration-potential-explained-7630082/