More and more natural gas is being extracted from underground shale deposits, but environmental concerns have been raised. Stanford geophysicist Mark Zoback, who recently served on a Department of Energy panel of experts, says it can be done safely.
Is drilling for natural gas dangerous?
Oil and gas drilling is a dirty business
Oil and gas drilling has a serious impact on our wildlands and communities. Drilling projects operate around the clock generating pollution, fueling climate change, disrupting wildlife and damaging public lands that were set aside to benefit all people.
What are the disadvantages of extracting natural gas?
Disadvantages of Natural Gas
- Natural gas is a nonrenewable resource. As with other fossil energy sources (i.e. coal and oil) natural gas is a limited source of energy and will eventually run out. …
- Storage. …
- Natural Gas Emits Carbon Dioxide. …
- Natural gas can be difficult to harness.
What is the safest way to extract natural gas?
Hydraulic fracturing is a proven technology used safely for more than 60 years in more than a million wells. It uses water pressure to create fissures in deep underground shale formations that allow oil and natural gas to flow.
What has to happen to be able to extract the natural gas?
Extracting gas from “tight” rock formations usually requires expensive and difficult methods, such as fracking and acidizing. Acidizing is similar to fracking. An acid (usually hydrochloric acid) is injected into the natural gas well. The acid dissolves the tight rock that is blocking the flow of gas.
Why should we not use natural gas?
Some potential disadvantages to consider are the following: Natural gas must be handled carefully because it is a combustible material. Like all fossil fuels, natural gas is not a renewable energy source. Natural gas does contribute to greenhouse gases.
Why is natural gas an easy fuel extraction?
Just like oil, natural gas is the result of the transformation of organic substances deposited at the bottom of ancient seas and lakes (sedimentary basins). … Extracting natural gas from underground is quite easy. Usually it is trapped together with oil under a rock layer.
What methods are used to extract natural gas from the ground?
Natural gas is extracted using a variety of methods depending on geology, including vertical drilling, horizontal drilling and hydraulic fracturing.
How does hydrofracking help increase the amount of natural gas obtained?
Hydraulic fracturing produces fractures in the rock formation that stimulate the flow of natural gas or oil, increasing the volumes that can be recovered. … Once the injection process is completed, the internal pressure of the rock formation causes fluid to return to the surface through the wellbore.
What company produces the most natural gas?
The United States is the top producing country of natural gas in the world. Russia’s Gazprom is the world’s top publicly-listed natural gas company. Exxon Mobil produced about 9.97 billion cubic feet of natural gas per day in 2018.
How much co2 is emitted when natural gas is burned?
Water and various elements, such as sulfur and non-combustible elements in some fuels reduce their heating values and increase their CO2-to-heat contents.”
How much carbon dioxide is produced when different fuels are burned?
|Diesel fuel and heating oil||161.3|
|Gasoline (without ethanol)||157.2|