Sentences with phrase «conventional oil and gas extraction»
They looked both at wells used for enhanced oil recovery — in which fluid is injected to flush lingering oil from a depleted reservoir — and at those used to dispose of wastewater from conventional oil and gas extraction or from hydraulic fracturing (fracking).
http://www.sciencemag.org/
Fluid injection can occur with conventional oil and gas extraction methods, which extract fuel from underground pools, and with unconventional methods like fracking, which recover oil and gas from small voids in rocks.
Not exact matches
Separate production models were developed for mining (coal and unconventional oil) and field (gas and conventional oil) operations, which reflected the basic differences in extraction and processing techniques.
On the contrary, Figure 1 is a conservative estimate of potential emissions from tar sands because: the economically extractable amount grows with technology development and oil price; the total tar sands resource is larger than the known resource, possibly much larger; extraction of tar sands oil uses conventional oil and gas, which will show up as additions to the purple bars in Figure 1; development of tar sands will destroy overlying forest and prairie ecology, emitting biospheric CO2 to the atmosphere.
AND as fracking begins to overtake conventional extraction methods and promise us centuries of cheap fossil gas and oil, we're only beginning to understand its impact on water and communitiAND as fracking begins to overtake conventional extraction methods and promise us centuries of cheap fossil gas and oil, we're only beginning to understand its impact on water and communitiand promise us centuries of cheap fossil gas and oil, we're only beginning to understand its impact on water and communitiand oil, we're only beginning to understand its impact on water and communitiand communities.
If combustion of the final products is included, the so - called «Well to Wheels» approach, oil sands extraction, upgrade and use emits 10 to 45 % more greenhouse gases than conventional crude.