0
Shale is a sedimentary rock that is generally formed as particles of sediment settle out in calm water. Shale can be formed in shallow inland waters or deep ocean basins. Shale rock is generally high in organic content. Once covered up by other sediments and buried over millions of years, heat and pressure begin to work on these sediments and oil and gas are formed. Some of the oil and gas may begin to migrate upwards, to layers of sandstone and porous limestone where it becomes trapped. These are considered conventional oil and gas reservoirs and shale is often the "source rock" or original source of the hydrocarbons. Natural gas and oil that occur in shale are called "unconventional". Now with new horizontal drilling and hydraulic fracturing methods it is possible to extract that oil and gas. "Unconventional" gas is quickly becoming the new norm. We have over 100 years worth (and growing) of natural gas supply in North America.
In a nutshell, shale gas is standard natural gas buried much deeper and complex to extract.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What common rock structure can trap oil and natural gas under it?
Shale rock / Roof rock
Why black shale weatheing is important?
Black shale contains a lot of carbon - this is what gives it its black colour. So, when it weathers, it releases carbon as carbon dioxide (a greenhouse gas), which may have an impact on global warming.
How do you extract natural gas out of the ground?
Natural gas normally forms in pockets in folds in the stratification of rocks, usually in sandstone. So drilling for this involved boring down to the top of the gas pocket and either it escaping via its own pressure or water can be pumped down to force the gas up. If the Gas is in shale, then this method isn't available and technology called 'fracking' is used. This uses a specialised drill which forces a compound liquid under extremely high pressure into the shale. The tool 'fractures' the shale rock, hence the term fracking. The new pathways in the rock then allows the gas to escape which is then pumped to the surface.
Is shale magnetic?
no shale is not magnetic
How long does a Marcellus shale gas well last?
20-30 years at least, but at a much declined production rate.
Is shale gas found under the see?
It can be. It is found in a rock type called shale and is produced in the shale form the original bio mater included in the deposition of the shale. If a unit of shale lithology is to be found on the continental shelf strata then it is likely that that shale will contain shale gas and it will be under the sea.
Who finds shale gas in India?
Asia's first shale gas pool found near Durgapur
Is shale a form of fuel?
No. Shale is not fuel in and of itself. However, some shale deposits have oil or natural gas trapped in pore spaces. This can be processed into fuel.
What is shale energy?
Natural gas extracted from shale rock could become a significant global energy source.
How will natural gas be harnessed in the Marcellus Shale?
fracking
What resources does Colorado have?
Natural Gas, Coal and Oil Shale.
Should the US invest in extracting natural gas from shale rock?
?
When gas and oil are made what is the layer of rock above them?
Shale underneath, to provide the organic material, then the oil and gas are usually found within sandstone. Above you will find shale again, or possibly caly or slate
What are the natural resources of Colorado?
Natural gas, oil shale, coal, land and water.
Tell you some natural resources in Colorado?
Coal, natural gas, oil shale,
What the natural resources of Colorado?
Natural gas, oil shale, coal, land and water.
What are the release dates for Rational Middle Energy Series - 2012 Shale Gas 101 1-5?
Rational Middle Energy Series - 2012 Shale Gas 101 1-5 was released on: USA: 14 August 2012
