Energy Exchange

Getting dangerously creative with oil and gas wastewater

By Nichole Saunders / Published: October 12, 2017

Look before you leap – why learning more about oilfield wastewater is critical to reducing health and safety risks.

The oil and gas industry has a massive wastewater problem. And if the growing dialogue about new ways of dealing with it are any indication, it may get worse if we aren’t careful.

Cost concerns, pressure to conserve water, and other factors have led some oil and gas companies to consider new ways to manage or repurpose wastewater – including using it to irrigate crops. That could create more problems than it solves.

Managing the massive amount of oil and gas wastewater has been a challenge for energy companies for generations. Some wells produce up to 10 times more wastewater than oil. In the United States, companies produce nearly 900 billion gallons of wastewater a year. That’s enough to fill over 1,000 football stadiums.

Ongoing Risks

Oil and gas wastewater is often many times saltier than sea water – and can ruin soil for generations if large amounts spill or leak during storage or transport.  In fact, landowners with a long history of oil and gas production on their lands know that a wastewater spill can cause much more long term damage to their land than an oil spill. Read More »

Posted in Natural Gas, produced water / Tagged , | Read 1 Response

What’s new for the EPA’s Greenhouse Gas Reporting Program?

By David Lyon / Published: October 9, 2017

This week, the U.S. Environmental Protection Agency posted the 2016 Greenhouse Gas Reporting Program (GHGRP) data online. While there are positive trends in the type of data included and the ways that data are measured, the general picture is of an industry with many remaining opportunities to reduce emissions.

The GHGRP is an emissions reporting program for large facilities that emit more than 25,000 metric tons carbon dioxide equivalents (MT CO2e) of methane and other greenhouse gases into the atmosphere. The data provided by the GHGRP are invaluable for understanding the sectors and sources responsible for GHG emissions and can guide the design of effective policies for reducing emissions.

Additionally, EPA has been incorporating GHGRP data into the Greenhouse Gas Inventory, an annual report that estimates U.S. GHG emissions. In 2016, 7,631 facilities reported emitting almost 3 billion MT CO2e GHGs. After power plants, which are responsible for 63% of reported emissions, the oil and gas (O&G) sector is the largest source of GHG emissions. This year there are three major changes to the reporting protocols for oil and gas facilities. Read More »

Posted in Methane, Natural Gas / Comments are closed

Looking beyond pipelines to address New England’s electricity needs

By Liz Delaney / Published: October 4, 2017

Our dramatic seasonal temperature fluctuations here in New England create a unique energy challenge. Most days of the year (i.e. spring, summer, and fall), we have enough pipeline capacity, or space, to meet electricity and heating demand. However, approximately 40 days out of the year natural gas pipeline capacity becomes scarce, and in certain hours, unavailable; and the system relies on storage to maintain sufficient gas supply and delivery to homes, businesses, and electric power plants.

Many people look at the region’s pipeline constraints and assume that the only solution is to build more pipelines. This is a logical reaction, but it overlooks an opportunity to explore multiple solutions in a more economical and holistic way.  Rather than only looking at pipeline solutions, why not broaden the solution conversation by calling forth market competition?

The grid needs to foster participation by all resources

All resources can help ensure reliability during those key hours when pipelines are constrained. By allowing resources, such as batteries, pumped storage, demand response, and LNG, to compete, market forces can be used to fill in gaps, reward resources that are flexible and available to meet peak demand, and ultimately signal to investors when and where right-sized investments are needed. Read More »

Posted in Gas to Clean, Natural Gas / Comments are closed

NASA helped locate over 300 methane hot spots across California

By Tim O'Connor / Published: October 2, 2017

Last week the California Air Resources Board (CARB) and California Energy Commission (CEC) released interim results from a NASA study that offers the most clear-eyed assessment yet of California’s largest individual sources of methane pollution.

Methane – a potent greenhouse gas responsible for about a quarter of global warming – is emitted from several different sources, including refineries, landfills, dairy farms, and oil and gas facilities. This new study identifies 329 of the largest pollution sources and offers insights to policy makers about opportunities for reducing these emissions.

Here are four key takeaways from the latest research.

California must focus on super emitters to cut pollution

Previous studies in other regions have shown that when it comes to methane, a small set of high-emitting sites, known as “super emitters” tend to be responsible for a significant amount of total emissions. The new CARB study suggests the same is likely occurring in California (measurements of actual amounts of the methane will be released in the second phase of the project next year).  Many times these super emitters occur randomly, such as when a major piece of equipment breaks and releases a large amount of pollution. Other times, as this study shows, these sites can be landfills, dairy farms, and refineries that simply release a lot of pollution.  Read More »

Posted in Air Quality, California, Methane, Natural Gas / Comments are closed

Californians benefit from continuous pollution monitoring at oil and gas sites

By Tim O'Connor / Published: August 28, 2017

Sophia Brewer, Oil and Gas Intern, contributed to this article.

Since the 1892 discovery of oil in California, the oil and gas industry has been a major economic engine and energy supplier for the state. Although this oil and gas production may be broken down into dollars and barrels, it doesn’t tell the story of the potential impact of drilling activity on the lives of the people in Los Angeles and the Central Valley who live right next to these operations.

While some production sites may be meeting stringent operational and environmental standards, others may not –there simply isn’t data to discern which is which – and that is where monitoring comes in. Read More »

Posted in Air Quality, California, Methane, Natural Gas / Comments are closed

Whether it’s safe or not, do we need Aliso Canyon?

By Tim O'Connor / Published: July 25, 2017

In early 2016, southern California awoke to the harsh reality that reliable operation of the regional energy system might be tied to a single aging natural gas storage field called Aliso Canyon, where a catastrophic blowout that started the previous October was not closed until February. So while Southern California Gas Company got to work to repair the facility, several government and private institutions also went to work assessing whether the facility was actually needed in the first place.

Last week multiple state agencies issued a verdict that Aliso Canyon is now safe, and giving the green light to increase the gas stored in it on a limited basis. The decision caused an outcry from nearby residents, but it should also be a concern for utility customers throughout the region.

But what if we don’t need the facility at all? Why take the risk? The latest analysis strongly suggests we don’t have to. Read More »

Posted in Aliso Canyon, Methane, Natural Gas / Comments are closed