Energy Exchange

Methane Research: The Data Pursuit Continues

By Mark Brownstein / Published: June 11, 2013

Source: Kinder Morgan

Is natural gas really better for the climate? This may seem like a simple question. After all, natural gas is the cleanest burning fossil fuel.  And data from the Energy Information Administration in April showed a downward trend in U.S. energy-related carbon dioxide (CO2) emissions. A move many experts believe is largely attributed to the increased production of U.S. natural gas and the shift it has caused in the power sector – old, dirty coal plants being retired because new natural gas plants are more competitive.

But, this is only part of the story. Natural gas is comprised primarily of methane, and unburned methane is an incredibly potent greenhouse gas – 72 times more powerful than CO2 over the first two decades it is released.

The oil and gas industry is one of the largest domestic sources of methane, and while new gas reserves are being drilled every day,  too little is known about how much and from where methane is leaking out from across the natural gas system. Lack of direct measurements has been a challenge, as EDF’s Chief Scientist Steven Hamburg explains here.

The need for better data to understand and control methane emissions in order to understand the true climate opportunity of natural gas led to EDF’s largest scientific research project. This effort currently involves about 85 academic, research and industry partners subdivided over five areas of the value chain (production, gathering and processing, transmission and storage, local distribution and transportation).  Read More »

Also posted in Climate, Methane / Comments are closed

Wyoming’s Energy Strategy A Potential Step Toward Improved Oil And Gas Regulations

By Jon Goldstein / Published: May 20, 2013

Source: Dustin Bleizeffer/WyoFile

Wyoming is one of the leading energy states in the country. It is the top overall energy exporter in the U.S., the third leading producer of natural gas, and number eight in oil production. In fact, if Wyoming were a country, it would rank tenth in the world in overall energy production.

It makes sense then that Wyoming would want to develop an energy strategy to ensure that these resources are developed wisely. A state that is also home to the nation’s first national park (Yellowstone) and a thriving outdoor recreation and tourism economy would not want one of its leading economic drivers to negatively impact another, or to harm the health of its citizens.

There is strong potential in the strategy released last week by Governor Matt Mead and his staff. The 47 policy prescriptions in the “Leading the Charge” document are broad and varied, but the ones pertaining to oil and gas regulation appear promising. These include:

  • Establishing a strong, scientifically-valid groundwater quality baseline testing program that gives landowners important information about potential impacts from oil and gas drilling.
  • An air quality management strategy and review of state flaring policies that can take into account the pollution problems in Wyoming’s Upper Green River Basin and seek to make improvements there and across the state.
  • Efforts to carefully examine the potential safe reuse of produced water from energy production.
  • Subjecting the state’s oil and gas regulations to a complete review by a broad group of experts through the nationally respected STRONGER process.
  • A review of state bonding requirements that can ensure well owners have the financial wherewithal to adequately plug wells and reclaim areas where drilling has occurred so the state is not left holding the bag for so-called orphan wells. Read More »
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Is BLM Phoning It In?

By Matt Watson / Published: May 17, 2013

Source: Soundcheck-WNYC

Yesterday the Bureau of Land Management (BLM) released a new draft of its so-called “fracking rule.” To be fair, the proposed rule does represent a level of progress compared to sorely outdated rules on the books. But we’re dealing with critical issues here – not the kinds of things we can afford to only get half right.  And unfortunately, “half right” is about all we got here.

The most significant failings of the proposed rule have to do with well integrity – the way an oil or gas well is constructed and operated to minimize risks to the environment and public safety. Proper casing, cementing and pressure management are critical to protecting groundwater resources and the lives of the men and women who work the rigs. The rule takes steps in the right direction, but it doesn’t include nearly the level of detail necessary to ensure casing is set where it’s needed, operators are getting good cement jobs and the whole system is checked for mechanical integrity at critical points in the well development process.

The rule also falls short on chemical disclosure. We’re pleased to see the agency propose the same basic disclosure framework that has already been established by leading states – including requirements that operators disclose all chemicals used in hydraulic fracturing fluids (not just chemicals subject to OSHA reporting), and requirements to post the information on a user-friendly, publicly accessible website like FracFocus. But the proposal is far too weak on trade secrets. For the public to have confidence trade secret protections aren’t being abused, there needs to be a clear path for challenging trade secret assertions and policing the system.

Finally, while we recognize that you can’t address every issue in a single rule, it’s still worth noting two areas where agency rules are in glaring need of an overhaul. First, BLM needs to improve its rules for the handling, storage and disposal of the huge volumes of wastewater produced by unconventional oil and gas operations (the proposed rule merely asks operators to submit a plan). Second, BLM needs to adopt requirements to minimize emissions of methane – a highly potent greenhouse gas – and other contaminants that create local and regional air quality problems like they’re seeing in Colorado and Wyoming. There’s long been talk of dealing with methane emissions at BLM, but so far we’ve yet to see action. We hope that changes soon. Read More »

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This Is Your Final Warning: Enforcement Needed To Curtail Continued Pollution Problems

By Jon Goldstein / Published: May 7, 2013

Source: Chucker & Reibach

What makes you slow down more, a speeding ticket with a hefty fine or a warning? For most people, getting a ticket for violating the speed limit and having to fork over some cash to pay the fine is a powerful deterrent. In this case, enforcement has done its job. Giving you a penalty for not following the law makes you more careful in the future.

Air pollution rules are no different. Getting the rules right and then following up with strong, fair enforcement actions incentivizes industry to follow them, reduce pollution and clean up our air.

Since 2011, Wyoming environmental regulators have issued an annual study examining air emissions from numerous engines deployed in the state’s oil and gas fields. These engines power things such as compressors used to deliver natural gas to market.

It’s not surprising that the Wyoming Department of Environmental Quality (DEQ) has singled out these engines for special attention. A 2011 emission inventory for the Upper Green River Basin — a portion of the state that has struggled with ozone problems and is designated a nonattainment area by the U.S. Environmental Protection Agency for high pollution levels — found these engines to be by far the largest source of nitrogen oxide (NOx) emissions.

NOx is one of the two air pollutants that lead to harmful ozone, or smog, formation. In fact, the 2011 inventory indicates these engines emitted more than twice the NOx pollution of heaters, the next biggest source in the basin. They accounted for 1,639 of the 4,529 tons, or around 36 percent, of NOx emitted in the basin overall. Read More »

Also posted in Climate / Tagged | Comments are closed

Clean Air Report Card: CO, WY Counties Get F’s Due To Oil And Gas Pollution

By Dan Grossman / Published: April 29, 2013

Source: Washington Business Journal

As a parent, I would not be pleased if my kids brought home F’s on their report cards.  Stern talks with my children, frantic phone calls and scheduled meetings with teachers and administrators would ensue.  Plans of action would be crafted.  It would be an urgent wake-up call.

This week, several counties in Colorado and Wyoming brought home poor grades on their clean air report cards.  The American Lung Association examined the levels of damaging ozone pollution in counties in these two western states and several of them are simply not making the grade.

High ozone levels are not new to Colorado.  Like many large metropolitan areas, Denver has struggled with ozone pollution (commonly known as smog) for many years. But historically, such problems have been limited to the summertime and to the Denver metropolitan area. Now unhealthy levels of ozone are becoming a common occurrence year-round and are emerging in rural parts of Colorado and Wyoming.

The culprit?  Air pollution from oil and gas development, which is just one of the environmental risks associated with a booming natural gas industry. Read More »

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Why The Texas Railroad Commission Must Get Well Integrity Right

By Scott Anderson / Published: April 25, 2013

On February 28, 2013, something went very wrong on a well site in Hemphill County, Texas:

According to Railroad Commission investigators, there was “one injury from well head being blown off when casing parted.”

According to the investigators, it took almost two weeks before this “frac water” stopped flowing out of the wellbore, and another week for the well to be plugged. The investigation did not determine the underlying cause of this accident.

Getting the rules right on well integrity is about preventing pollution, protecting the environment, securing property and, most importantly, saving lives. There were no fatalities in this accident, but sadly, that is not always the case (learn more about risks EDF’s natural gas work addresses).

The Railroad Commission is close to finalizing a historic well integrity rulemaking, the most significant overhaul of these practices in several decades. It is, on the whole, an excellent effort, bringing Texas back to the forefront on well construction, operation and maintenance practices. The proposals are progressive and will lead to real environmental benefit.

One particular provision of the proposal, however, falls short of the standard set by the rest of the rulemaking. It has to do with the amount of space surrounding casings, the steel pipes that go underground. This “annular space” (or “annular gap”) is supposed to be filled with cement as necessary to isolate groundwater from pollution, protect the casing from corrosion, and prevent gas from migrating to places it does not belong.

The width of the annular gap matters. In order for a cement job to be effective, the gap must be neither too wide nor too narrow.

Read More »

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