Pressure, temperature and fluid composition play an important role in the amount of metals and other chemicals found in wastewaters from hydraulically fractured gas reservoirs, according to Penn State researchers.
Environment
Dec 9, 2016
0
546
(Phys.org) —Extraction of "unconventional" gas from sedimentary rocks such as shale could provide a clean energy source and help some regions to become energy independent, but concerns have been raised about risks such ...
A new University of Colorado Boulder framework used to screen hundreds of organic chemical compounds used in hydraulic fracturing, or fracking, shows that 15 may be of concern as groundwater contaminants based on their toxicity, ...
Environment
Jun 30, 2015
4
334
"The answer to that question is usually 'no,' but there are exceptions," said Stanford Professor Rob Jackson, a professor of Earth system science at Stanford University, and a senior fellow at the Stanford Woods Institute ...
Environment
Feb 14, 2016
1
484
Using hydraulic fracturing to extract oil and natural gas from shale is a common technique used worldwide. Because the technique requires large amounts of water, however, it raises the question of whether it could lead to ...
Environment
Jun 11, 2018
0
81
Two moderate-sized earthquakes that struck the southern Sichuan Province of China last December and January were probably caused by nearby fracking operations, according to a new study published in Seismological Research ...
Earth Sciences
Apr 5, 2019
3
671
Oil and gas production may explain a sharp increase in small earthquakes in the nation's midsection, a new study from the U.S. Geological Survey suggests.
Earth Sciences
Apr 7, 2012
11
0
The risk of man-made earthquakes due to fracking is greatly reduced if high-pressure fluid injection used to crack underground rocks is 895m away from faults in the Earth's crust, according to new research.
Earth Sciences
Feb 27, 2018
7
475
A new study links the March 2014 earthquakes in Poland Township, Ohio to hydraulic fracturing that activated a previously unknown fault. The induced seismic sequence included a rare felt earthquake of magnitude 3.0, according ...
Earth Sciences
Jan 5, 2015
12
3281
Only one industry is allowed to inject toxic chemicals into underground sources of drinking water – hydraulic fracturing, or "fracking." Concerns about this practice have riled the U.S. political landscape and communities ...
Environment
Mar 30, 2016
13
239
