Youngstown, Ohio rang out the old year in style, with a magnitude 4.0 earthquake that apparently felt as far away as Buffalo, but received attention nationally (See the LA Times blog titled 4.0 quake hits Youngstown Ohio. Yes, Ohio.) There is a widespread notion that the temblor was related to Class II injection wells in the area–see for example this Akron Beacon Journal article where Ohio state geologist Michael Hansen is quoted as saying there is “little doubt” that this latest in a series of 11 quakes is the result of activities at injection wells in the immediate area. The article goes on to say that his boss, Ohio Department of Natural Resources director James Zehringer, closed several injection wells in the area as the issue is being examined.
But wait a second…if you go to this NPR link, you see an AP story titled “Earthquake Strikes Near Ohio Fracking Site”, where the same James Zehringer is quoted as saying, “The seismic events are not a direct result of fracking.”
What gives? Actually, there is no discrepancy at all, except that the AP writer lumped injection wells together with hydraulic fracturing, which have some similarities in that they highly pressurized oil injections of oil and gas related fluids, but the two are in fact different. Therefore, saying that the seismic events are not a direct result of fracking is completely true.
But it does make one wonder…most of Pennsylvania has been deemed unsuitable for brine injection wells, which is why much of our waste water has gone to Ohio in the first place. But if these supposedly safe activities can result in a disturbance equivalent to 15 metrics tons of TNT, maybe we don’t really understand what we’re doing down there.
Here are maps showing earthquakes near the Ohio river basin since 1973. For more information on any event, hit the blue “i” button, followed by any map feature. Clicking the gray compass rose and double carat (^) will hide those menus.
https://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.png00Matt Kelso, BAhttps://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.pngMatt Kelso, BA2012-01-01 16:29:092020-07-21 10:38:52Youngstown Earthquake Related to Gas Extraction Industry?
By Samantha Malone, MPH, CPH – DrPH Student in Environmental & Occupational Health; Communications Specialist for FracTracker.org
As natural gas drilling in the Marcellus Shale region of our country moves forward, people in many states are debating over the best ways to regulate the natural gas industry. I’m not going to get into the impact fee discussion in this piece, although it is an obvious point of contention that needs addressed in PA immediately. Rather, I’d like to propose a way to manage the permitting and future development of the companies operating in this field.
Pipeline Safety
There are 2.5 million miles of pipelines in the U.S., the majority of which are for gas transmission and distribution. A recent 4-part series by the Philadelphia Inquirer brought to light the real and potential dangers of the gas pipeline system, which is being expanded in PA to handle the Marcellus gas destined for the market. The biggest concern highlighted in these articles in my opinion is the lack of oversight anywhere in the process – especially when our regulatory officials cannot even locate the pipelines. (Specific geographic locations of pipelines are often held close to the chest due to the perception that this information poses a risk to national security and infrastructure.)
Pipelines do fail, as demonstrated by the toxic liquid spills map below. This graphic was created by the New York Times, who in a earlier article discussed the lack of human and fiscal resources available to the Pipeline and Hazardous Materials Safety Administration – noting that although the number of spills have declined, pipelines are still responsible for approximately 100 significant spills per year.
NEW YORK TIMES | Source: Department of Transportation, Pipeline and Hazardous Materials Safety Administration
If you’d like to be able to find where pipelines are located (approximately) in your county, visit the U.S. DOT’s Pipeline and Hazardous Materials Safety Administration (PHMSA) website for Pipeline Safety Awareness. The site also provides you with data about pipeline incidents. In case you would rather not go diving through the raw data, below are some U.S. pipeline incident datasets and example maps from 2010 – Nov 2011 data that Matt Kelso obtained from PHMSA:
PHMSA Gas Distribution Pipeline Incidents: Dataset | Map
PHMSA Gas Transmission Pipeline Incidents: Dataset | Map
(You can do a lot more with this data, such as filtering it by whether surface water remediation was necessary or by the type of contaminant that was released.)
Violations in PA
Violations Jan-Sept 2011 PA (EHS violations in red)
Another concern about natural gas drilling is the risk of environmental health and safety incidents occurring throughout the rest of the drilling process.1
The map to the left created using Data.FracTracker.org shows all of the violations that were issued to drillers from Jan-Sept. 2011 in Pennsylvania. The red dots are the violations that fall under the DEP’s loose category of Environmental Health and Safety (EHS).2
As you can see, EHS incidents do occur, but is that the whole story? Perhaps we should be asking ourselves, who exactly is responsible for these incidents – pipelines and the like? When you look more closely at the data the industry’s safety record becomes less monolithic than at first glance.
Focusing on the Bad Actors
The PR surrounding natural gas drilling is controversial at best. We have seen blanket statements about how safe – and dangerous – natural gas drilling and pipelines can be. We all must recognize that the answer lies somewhere in between. However, where is the perfect medium located, and how do we address the root of the problems that do arise?
One approach that is taken by some regulatory bodies such as OSHA is to focus on the bad actors. In two of his more recent posts, FracTracker’s Matt Kelso analyzed the ‘bad actors’ that exist within the violations issued in PA. While this is certainly not an easy or straightforward task, he was able to identify operators with the highest and lowest violations per well drilled, as well as trends between 2010 and 2011. Check out these analyses here: Part 1 | Part 2.
Bad actors are not good for the industry’s PR or the Commonwealth’s residents. If the agencies responsible for issuing drilling permits quantitatively began to take violation trends into account, this would allow the safer drillers to continue operating, while limiting those with a less than appealing track record.
1 One of the great changes made by the PA Department of Environmental Protection in the last 2 years has been the transfer from the paper record system for keeping track of the violations they issue to a digital version that allows people access to the comprehensive, raw data. This is certainly also something that should be on NY’s Department of Environmental Conservation radar prior to issuing its first permit for high volume hydraulic fracturing.
2 EHS violations are a loose category because often times when we sift through the data we will find administrative oversights like paperwork mislabeled as EHS, and more serious spills and fires mislabeled as administrative.
https://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2011/12/ViolationsJan-Sept2011PA.jpg5271073FracTracker Alliancehttps://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.pngFracTracker Alliance2011-12-21 18:22:522020-07-21 10:38:51A discussion on regulation and safety
Recently, I conducted an analysis of the legacy of each Marcellus Shale operator’s violations over time, normalized by the number of wells each company has drilled, in a metric that I call Violations per Well, or VpW. While that analysis was cumulative, I’ve had FracTracker readers ask if the VpW from one year predicts the VpW for the following year, particularly among the bad actors. To help answer that question, I’ve taken the same raw data from the previous post, and recompiled it to help address that.
I’ve been looking at violations per well for some time, on the theory that it can be used to help score a company’s compliance history with regards to the Pennsylvania Department of Environmental Protection, which issues them. All of these wells and violations are Marcellus Shale specific, and come from sources posted on the DEP website.
For ease of use, I’ve color coded the results, with bright green being the best scores, and bright red being the worst. Companies without wells for a given year are indicated in pale blue. They may either indicate drilling operators that were inactive in a given year, or midstream companies that haven’t drilled any well. Here’s the color coded key:
And here are the results:
To look at the bad actors from 2010, I selected all of the entries that were colored burgundy or bright red for that year’s VpW score. How have they fared so far in 2011?
To be fair, I should point out that operators with very few wells can get obnoxious VpW scores in a hurry. On the other hand, there were 14 Marcellus Shale operators with at least one well drilled in 2010 that didn’t get any violations that year. Therefore, in this instance, I’ve included all operators with a VpW of 1.00 or greater, and will leave questions about sample size up to the reader.
Five of the operators with VpW scores of 1.00 or higher haven’t drilled any wells at all in 2011 so far. In fact, all of them had VpW scores of at least 2.50. There may be a variety of reason for their absence in 2011, but honestly, their lack of compliance isn’t missed.
Nine operators improved from 2010 to 2011, four of which improved all the way into green categories. This is the result that we want to see, where companies appear to be responsive to violations issued by the DEP. Notable among this group is Citrus Energy, which had a huge amount of violations compared to one drilled well in 2010, to a VpW score under 0.50 so far in 2011. Also, PA Gen Energy is an operator with a significant number of wells that went from a red to a green category, which is encouraging to see. Cabot, on the other hand, barely budged, and remains over 2.00 violations per well.
There are also three operators from 2010 with VpW scores of 1.00 or greater that actually got worse in 2011. And keep in mind, the data used includes almost two more months of drilled wells than violations, so inclusion in this group is especially dubious. They include Rice Drilling B, whose VpW more than duobled to 2.13; XTO, which went from awful to horrific since becoming a subsidiary of ExxonMobil; and Ultra Resources, whose performance has been nothing short of ghastly in 2011. Luckily, Ultra has been leaving the Keystone State alone since January–let’s hope it stays that way.
I maintain that since so many operators–big and small–are able to keep their violations to wells ratio at less than 1:2, all of the operators that operate in Pennsylvania’s Marcellus Shale should try to reach that standard. Those that show a continued disregard for our laws protecting our environment should face stiff fines for their complacency, while those operators that average more than two violations per well drilled over a prolonged period of time need to be banned.
https://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.png00Matt Kelso, BAhttps://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.pngMatt Kelso, BA2011-12-12 15:40:172020-07-21 10:38:40Violations per Well by Operator, Part 2: Bad Actors
The Internet is alive today after the U.S. Environmental Protection Agency released a report that indicates hydraulic fracturing (used when drilling for natural gas in tight shale formations) can contaminate groundwater. Residents of Pavillion, WY have been complaining about the state of their groundwater for some time now. The draft EPA report lends credibility to their claims with the finding that chemicals associated with the process were found in some deep water aquifers in the area. And when you look at all of the evidence around this issue – outside of the EPA’s study – the results are even more ‘ground-breaking.’
Having said that, there are a few questions regarding the EPA report/research. No field study could ever account for all of the potential confounders and variables – especially given the amount of resources the EPA had at its disposal to conduct this work. However, some of the most significant questions that I would like to see answered before this draft is finalized include:
How representative is the data from the two monitoring wells in relation to residents’ drinking water wells?
Has the potential for surface contamination of the monitoring wells been ruled out?
Why weren’t the duplicate samples that were analyzed by separate labs also able to detect 2-BE?
These questions (and surely more) are exactly why this is only a draft report. According to the EPA, it will be available for a 45-day public comment period. A subsequent 30-day peer-review process will be led by a panel of independent scientists to ensure that the results that stay on the records are accurate.
https://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2011/12/Screen-Shot-2011-12-09-at-3.41.18-PM.png391737FracTracker Alliancehttps://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.pngFracTracker Alliance2011-12-09 17:06:452020-07-21 10:38:39EPA: Fracking and Groundwater Contamination
In today’s Post-Gazette, Laura Olson quotes the DEP Deputy Secretary of Oil and Gas Management Scott Perry refuting the notion that hydraulic fracturing is an unregulated process, saying:
“It’s important to point this out, because I think if the public loses confidence in the department’s ability to manage this industry, it’s going to have some consequences and perhaps some unfortunate policy decisions will be made. It ultimately will result in less opportunities for everyone.”
In times like these, isn’t it nice to know that even the Department of Environmental Protection has the economy foremost on their minds?
“I feel like I’m trying to convince the public that Sasquatch doesn’t exist.”
Hasn’t anyone told him? There have been 951 confirmed Sasquatch sightings in the Marcellus Shale portion of the Commonwealth so far this year.
Even if I’m taking this quote of Perry slightly out of context, the point remains valid: The DEP stands for the Department of Environmental Protection. That’s what they should talk about, and denying that there are problems doesn’t make it seem like they are paying any attention to their own data.
Photo Credit: Salvation Army, Randall Thomas, Wilkes-Barre, PA
Pennsylvania is no stranger to water and flooding, as we receive between 38 and 45 inches of rain per year on average. Unfortunately, the storms that hit the region starting on August 27th were more than we could handle – to say the least. During this time Hurricane Irene and the remnants of Tropical Storm Lee burdened the eastern portion of the state with flooding at water levels that rivaled Hurricane Agnes (1972).
While most residents hit hardest by flooding focused on protecting their families, homes, and livelihoods, others throughout the Commonwealth were also concerned about the impact that rising water levels could have on natural gas well pads. This is especially an issue for those sites operating in floodplains with open frac ponds. According to the reports we have been able to gather no shale gas well sites were compromised or sustained environmental damage in PA. Apparently, Marcellus Shale drillers were advised to prevent overflows from wastewater/’frac’ ponds by the governor, although due to a communication loophole it is unclear as to whether all of the relevant sites temporarily shut down during the inclement weather. Regardless, with the number of wells being drilled in PA especially in the northeast, being able to prevent any incidents during these storms is quite a feat on the part of the drillers and should be recognized as such. Industry reports also indicate that drilling companies provided financial contributions, expertise, equipment, work hours, and supplies to aid in the flood relief efforts. Learn more about these contributions here.
We ask that if you have any knowledge that contradicts this information, please let us know and contact your local representative to report the incident.
https://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2011/08/equipment.jpg201300FracTracker Alliancehttps://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.pngFracTracker Alliance2011-10-11 12:11:432020-07-21 10:38:37Flood Control and Shale Gas Wells
It may not seem like it when you head to the pump, but the price of oil has plummeted in recent months. After peaking near $114 in April, the price has fallen all the way to $77.27, as of today. Natural gas, which was $4.27 last month, has fallen 15 percent since then to $3.62. Surely with all of this uncertainty, the Corbett’s proposed impact fee makes more sense than the traditional severance tax which most states use? Perhaps it would be better to take the predictable lump-sum amount than basing that portion of the state’s coffers on the vagaries of the market?
No, not really.
Corbett’s plan allows the counties to charge up to $40,000 per well per year, for a period of up to 10 years per well. According to the Post-Gazette, his administrations figures it could bring in $120 million in the first year, and up to $200 million per year by the sixth year.
Or, as I pointed out in June, we could tax like Texas. Texas imposes a 7.5% severance tax on natural gas and 4.6% tax on oil and condensate. Using yearlong production data for non Marcellus Shale wells in Pennsylvania and the average wellhead price of gas and price per barrel of liquid hydrocarbons for 2010, I estimated that non-Marcellus wells would have brought in $72.5 million if we taxed our resources just like Texas does. What’s more, based on six month production data, I showed that the wells in the Marcellus Shale formation would produce at least $173 million, for a statewide total of $246 million through all formations.
But that was before the bottom fell out of the price of oil and gas. What if we used today’s low prices as a guide?
Estimated six month severance tax from the Marcellus Shale formation in Pennsylvania.
Even with the low energy prices, that six month total is almost as much as Corbett’s administration figures to raise in a year, and it doesn’t even include the tens of thousands of wells that aren’t drilled into the Marcellus Shale.
While the proposed impact fee does more for Pennsylvania than the current nothing-at-all policy, in the scheme of things, it is a great deal for the drilling industry.
And one final aside: does it seem strange to anyone else to let the counties set the impact fee? Is this some sort of attempt to have them compete with each other to keep the prices low? If so, it seems unlikely to work in my opinion. If a county charges the maximum $40,000, that represents only about 0.8 percent of cost of a well that costs $5 million to drill, and that figure is on the low end of the spectrum. The drilling companies will want to drill where the resources are, and whatever fees or taxes are charged will not change that fact.
According to pages 100-101 of the Oil and Gas Operator’s Manual, a region may be determined to be unsuitable for mining if the mining operation will:
be incompatible with existing State or local land use plans or programs;
affect fragile or historic lands in which such operations could result in significant
damage to important historic, cultural, scientific and esthetic values and natural
systems;
affect renewable resource lands in which such operations could result in a
substantial loss or reduction of long-range productivity of water supply or of
food or fiber products, and such lands to include aquifers and aquifer recharge
areas; or
affect natural hazard lands in which such operations could substantially
endanger life and property, such lands to include areas subject to frequent
flooding and areas of unstable geology.
Marcellus Shale permits that were issued in areas which were deemed to be “unsuitable for mining” according to the PA DEP in 2002.
These seem like worthy goals. So if these areas are unsuitable for coal mining, why is it OK to put gas wells there?
Granted, drilling a well is not quite the same impact as a surface mining operation, but to protect an area from one mode of mineral extraction and not the other seems inconsistent. After all, many of the problems with coal are still relevant for gas drilling, since the drilling operator must go through the coal seam to get to the gas. The pyrite associated with the coal is still exposed to air, meaning that the drilling mud and drill cuttings probably contain sulfuric acid, the key component of acid mine drainage (AMD).
And it’s not just the drill cuttings that could be a source of problems…it could be the well bore itself. Consider the Hughes Bore Hole, which, according to Wikipedia was drilled in the 1920’s to drain underground mines in the area, then capped in the 1950’s. So what’s the big deal? In the 1970’s, pressure built up and the hole burst open, and has been spewing about 800 gallons per minute of acid mine drainage ever since.
In this post, we will explore the change in production from the 756 Marcellus Shale wells that reported positive (nonzero) production on each of the three reports. Of these, exactly 300 were flagged as horizontal wells on the most recent report, leaving 456 to be classified as vertical wells.
Marcellus Shale production in Pennsylvania from January to June, 2011. Please click the image to see a zoomable and dynamic map. Caveats
It is important to note that the first of the three production cycles is for a one year period, while the other two are for six months each. Luckily, each report includes not only production in thousands of cubic feet (Mcf), but also the number of days for which each well was in production. Therefore, we can look at the data in terms of thousands of cubic feet per day (McfPD), which solves not only the 12 month vs. 6 month problem, but also makes sure that we aren’t comparing six months of production to just a handful of days.
One important factor that this analysis does not account for, however, is when the well first entered production. This is significant, because gas wells typically have a very high initial production, which falls steeply in the months and years ahead. This produces a hyperbolic decline curve, such as this Department of the Interior graph found on Wikipedia.
In this case, we only know that the initial production was some time since 2006 and before June 30, 2010. Add to that fact that there are only three date ranges, and the result is definitely not a proper decline curve.
Results
However, there are results, and they do show decline over time. Interestingly, there are some differences to note between horizontal and vertical Marcellus Shale wells.
Average Marcellus Shale production in thousands of cubic feet (Mcf) for wells on all three production reports.
Average Marcellus Shale production showing rates of decline.
The overall production of the sample decreased 40.7 percent from the period ending June 2010 to the one ending one year later. Interestingly, the vertical wells are declining at a sharper rate than horizontal wells, although not dramatically so.
The chart also highlights the amazing difference in production that horizontal drilling provides to Marcellus Shale wells, with average production values 5.6 to 6.9 times higher than their vertical counterparts.
What’s Missing?
Not all of the Marcellus Shale wells from the July ’09 to June ’10 list were still reporting production for the period that ended one year later. These wells were not included in the above analysis, but are interesting in their own right:
Number of Marcellus Shale wells on the production report for the period ending June 2010 that are also reporting production one year later.
Surprisingly, the rate for horizontal wells no longer producing gas is more than twice as high as their vertical counterparts. Does this mean that a side effect of horizontal drilling is a shorter well production life, as all of the gas is extracted faster? We’ll have to wait and see what future data shows to find out.
https://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.png00Matt Kelso, BAhttps://www.fractracker.org/a5ej20sjfwe/wp-content/uploads/2021/04/2021-FracTracker-logo-horizontal.pngMatt Kelso, BA2011-09-05 14:10:382020-07-21 10:38:22Marcellus Shale Production Decline Over Time in Pennsylvania
The Debate: Can the process of hydraulically fracturing underground natural gas wells contaminate groundwater?
Industry Position: There has never been a documented case of groundwater contamination due to hydraulic fracturing; the process occurs thousands of feet below drinking water aquifers. Therefore, the chemicals used in the fracturing process pose no threat to drinking water.
Opposition Position: It can and has contributed to pollution of underground drinking water sources.
The Data: Previous lawsuits from landowners were settled by the industry and the data kept private for various litigation reasons. A U.S. EPA report now indicates that hydraulic fracturing has been linked to at least one case of drinking water contamination in West Virginia in 1987 and could feasibly contribute to future problems.
Future Obligations: Some improved regulations and protections have been put in place since 1987, but the risk still exists if natural gas drilling is done hastily or if abandoned wells exist nearby. Once pollutants are introduced into underground water aquifers they are very difficult to remove, so significant care and review must be taken if drilling is going to continue. The EPA report further supports the need for increased government and industry transparency across the board. It should also be stated that a large-scale health impact assessment is needed to comprehensively determine the risk that the entire natural gas drilling operation poses to public health.
Compiled by: Samantha Malone, MPH, CPH – Communications Specialist, Center for Healthy Environments and Communities (CHEC), Environmental and Occupational Health (EOH) department, University of Pittsburgh Graduate School of Public Health (GSPH); and Doctoral Student, GSPH