How to get a handle on potential risks posed by fracking fluids


Water Protection, Operations

The latest skirmishes over hydraulic fracturing in Florida and California are, at their core, about water. Many fracking-related spills have been recorded, and opponents say that such incidents pose unacceptable threats to water supplies. But the[...]read more

Fugitive emissions of methane from abandoned, decommissioned oil and gas wells


Water Protection, Climate Impact

This recently published study (weblink) considered the fugitive emissions of methane from former oil and gas exploration and production wells drilled to exploit conventional hydrocarbon reservoirs onshore in the UK. This is important since[...]read more

Shale gas in Germany: large potential and controllable risks


Water Protection

Update 28 January 2016: press release in English. The German Federal Institute for Geosciences and Natural Resources (BGR) published a comprehensive study (in German) on 18 January 2016 that suggests large potential for shale gas[...]read more

Hydraulic Fracturing water management: Review of risk assessment techniques


Water Protection

The objective of this paper is to review different risk assessment techniques applicable to onshore unconventional oil and gas production to determine the risks to water quantity and quality associated with hydraulic fracturing and produced water[...]read more

Shale gas exploration in Poland declared safe: English translation


Water Protection, Induced Seismicity, Climate Impact, Operations

The report “The environment and shale gas exploration Results of studies on the soil-water environment, ambient air, acoustic, climate, process fluids and wastes" which was commissioned by the Polish Ministry of Environment and published in[...]read more

acatech: scientific evidence does not justify general ban of hydraulic fracturing


Legislation, Generic, Water Protection

acatech - the German National Academy of Science and Engineering has published a position paper (in German) about applications, economic perspectives and environmental risks of hydraulic fracturing. The academy´s project group, led by Rolf[...]read more

EPA Study of Fracking Finds 'No Widespread, Systemic' Pollution


Water Protection

On 4th June the United States Environmental Protection Agency (EPA) has released its long-awaited "Draft Assessment on the Potential Impacts to Drinking Water Resources from Hydraulic Fracturing Activities". The draft study comes in[...]read more

Scientists comment on German hydraulic fracturing draft law


Water Protection, Legislation

The members of the expert group on hydraulic fracturing chemicals within the Water Chemistry Society, German Chemical Society (GDCh), together with scientists from North America, have commented on the German draft law on hydraulic fracturing, which[...]read more

Radionuclides and hydraulic fracturing


Water Protection

Like other rock formations, shales can contain high concentrations of naturally occurring radioactive material (NORM), e.g. radium, uranium and thorium. NORM as a potential contaminant for ground water may be released to the environment by[...]read more

Fracture growth and fault activation: Recent studies support previous results


Water Protection

Fracture propagation during shale gas hydraulic fracturing Kim and Moridis, International Journal of Rock Mechanics and Mining Sciences. March 2015. Link to abstract. A recently published study on numerical simulations of fracture propagation[...]read more

Disclosure of hydraulic fracturing chemicals and trade secrets


Water Protection

The full disclosure of chemicals used in fracturing fluids has been urged for for years by scientists, politicians, and the public. At the same time, manufacturers of fracturing fluids claim trade secrets to protect some of their chemicals from[...]read more

Down and up again: Composition of fracturing fluids and flowback


Water Protection

A systematic evaluation of chemicals used in hydraulic fracturing fluids is necessary for a thorough assessment of the potential environmental impact of these substances. Beyond that, the complex composition of flowback water needs to be scrutinised[...]read more

Review of „Numerical assessment of potential impacts of hydraulically fractured Bowland Shale on overlying aquifers”


Water Protection

By Dr. Bernd Wiese The paper by Cai & Ofterdinger (2014) aims to identify the conditions under which hydraulic fracturing of the Bowland Shale in central Britain could contaminate groundwater in St. Bees Sandstone (600-1000 m below ground[...]read more

Comment by Professor Reichetseder on SHIP News “New numbers on well integrity failures“


Water Protection

A central theme of all conventional and unconventional oil and gas wells is well integrity. The concept of “well integrity failure“ in connection with shale gas production (see SHIP News) is based on the assumption that either the borehole between[...]read more

New study shows poor well integrity is responsible for water contamination in some shale gas regions of the US


Water Protection, Operations

The origin of methane found in private water wells in shale gas regions of the US has been discussed for many years. Several possibilities or mechanisms have been suggested, such as 1) in situ naturally generated methane (e.g. in peat and/or swamp[...]read more

New numbers on well integrity failures


Water Protection, Operations

The biggest environmental concern with shale gas exploration and production is water contamination. Whether or not hydraulic fracturing causes methane contamination of drinking water remains to be proved (Davies, 2011), although the possibility[...]read more

USGS released new National Produced Waters Geochemical Database


Water Protection

The U.S. Geological Survey (USGS) has released its new Produced Waters Geochemical Database and Map Viewer, an online platform that provides valuable information on a comprehensive list of chemicals, including major elements, trace elements,[...]read more

Water availability could potentially limit shale resource development on six continents.


Water Protection

Governments and businesses using hydraulic fracturing to develop shale gas could face intense water competition in the world’s largest reserves, according to a new report by the World Resources Institute* (WRI). The report is the first publicly[...]read more

German Federal Environment Agency publishes 2nd fracking study


Generic, Water Protection, Induced Seismicity, Climate Impact, Hydraulic Fracturing

On July 30, the German Federal Environmental Agency (UBA) published its second survey [available in German] on the environmental impacts of hydraulic fracturing for the exploration and production of natural gas with particular emphasis on shale gas[...]read more

Comment on ‘Hydraulic fracture height limits and fault interactions in tight oil and gas formations’


Water Protection

Author: Dr. Bernd Wiese A short summary of the paper: Flewelling et al., 2013, propose a worst-case scenario approach to determine the maximum possible hydraulic fracture height in tight oil and gas formations. The analysis is carried out in two[...]read more

Displaying 1 to 20 of 43
<< First < 1-20 21-40 41-43 > Last >>

Except where otherwise noted, the content of this website is licensed under a Creative Commons 3.0 Attribution License

Water Protection