Category Archives: Drilling & Mining

Power plant closures quench demand for Pennsylvania’s coal

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More than 100 coal-fired power plants nationwide either plan to shut down or already closed their doors in 2014, as the market responds to stricter environmental regulations, cheap natural gas and lackluster electricity demand growth, according to a survey done by the Energy Information Administration. Behind all those closures sit coal mines — many of them in Appalachia — coping with the loss of customers for the fuel that reigned supreme for many decades. Click the image above for a more detai

Source: powersource.post-gazette.com

>” […] More than 17 million tons of coal from Appalachia went to plants slated to shut down in 2013 alone, the latest full year for which such data are available. And the impact is likely to be even bigger, since the EIA’s list of recent or coming closures doesn’t include generators planning a transition from burning coal to burning natural gas.

Companies have been bracing for this change for years, but many have indicated that it’s coming faster and blunter than expected, driven in part by a slew of environmental regulations.

“That’s an unprecedented change to America’s power system in what constitutes the blink of an eye in energy markets — creating enormous potential for market disruptions, supply shortages and rate spikes,” Deck Slone, senior vice president of strategy and public policy at St. Louis-based Arch Coal, wrote in December.

Like its peers, Arch’s stock price reflects the gloom. At $1.30 per share, Tuesday’s closing price represented a one-year low. Virginia-based coal producer Alpha Natural Resources’ also saw its 52-week bottom at $1.13.  […]

Central Appalachian coal mines stand to be big losers in the transition away from coal, Mr. Cosgrove wrote in November. That includes the historically prolific supplies in Virginia, southern West Virginia and eastern Kentucky.

“Falling demand may hasten mine closings in the region, where coal production has dropped 32 percent since 2009,” he wrote.

Some companies have been bracing for the fall for years.  […]

Between 2012 and 2014, Alpha idled 64 mines, reduced its shipments in the eastern part of the country by 28 percent and got rid of more than 4,000 employees.  […]

The situation looks worse for suppliers such as Virginia-based James River Coal Co., which is in the middle of a restructuring, and Virginia-based James C. Justice Co., which has shed a significant portion of its mine portfolio in recent years. The producers stand to lose 28 percent and 48 percent of shipments, respectively, from mines serving affected plants.

For decades, contracts between coal companies and utilities have included force majeure clauses, according to Mr. Cardwell, who has reviewed hundreds of contracts and negotiated dozens during his 18-year tenure as a coal buyer for a Kentucky utility.

Such clauses typically protect power plants from having to take delivery of coal they no longer need if the power plant is prevented from running by some new environmental regulation or another unforeseen circumstance.

Yet lawsuits seem inevitable following current and projected mine closures. “I have a feeling that there’s going to be pretty significant litigation in the future,” Mr. Cardwell said.

One issue that may arise as power plants claim that environmental regulations pushed them out of business is how much of a role competition from cheap natural gas played in their decision either to shut down or use a different fuel.

Gas is all the rage at the moment. The commodity is trading at around $3 per million British thermal units, or Btus, down from more than $13 in the summer of 2008, towards the beginning of the shale revolution in Appalachia.

That’s why some operators, like Consol Energy, now boast flexibility in their contracts with utilities. Consol has refocused its company on a growing shale gas business, retaining only a handful of coal mines.

According to James McCaffrey, senior vice president of marketing at Consol, who spoke at Platts’ Coal Marketing Days in Downtown in September, “Customers want to flip between coal and gas.”

He said the company was actively negotiating a deal where a utility could choose its fuel depending on its preference.

“That’s a good marketing approach: ‘I’ll give you Btus, you tell me how you want them,’ ” Mr. Cardwell said. […]”<

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Renewable Geothermal Power with Oil and Gas Coproduction Technology may be Feasible

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The U.S. has been harnessing geothermal energy since 1960 and if recently announced research projects and startups are successful, even more geothermal power might soon be available.

Source: www.renewableenergyworld.com

>” […]  in the past, wastewater from oilfield production processes was viewed as a nuisance byproduct that needed to be disposed of. But new research has shown that much of the 25 billion barrels of this geothermally heated “wastewater” produced at oil wells each year in the U.S. is hot enough to produce electricity. It is estimated that many of the wells might have clean energy capacities of up to 1 MW.

Oil and Gas Coproduction in the US

In 2008, the DOE developed the first low-temperature geothermal unit in an oil field at the Rocky Mountain Oilfield Testing Center (RMOTC) in Wyoming. The well is producing energy and has a capacity of approximately 217 kW. RMOTC continues to test power units produced by Ormat Technologies and UTC/Pratt and Whitney Power Systems at the center and more than 30 oil firms have visited the center to learn about coproduction technology. The technology is also being implemented in Nevada, Mississippi, Louisiana, North Dakota and Texas.

In Nevada, Florida Canyon Mining Inc. is using the 220°F groundwater in a coproduction project that uses ElectraTherm’s 50-kW waste heat generators, aka “Green Machines” to generate electricity.

Energy can be harnessed at working oilfields and used to power them without interrupting their operation. A Gulf Coast Green Energy (GCGE) coproduction project at the Denbury oilfields in Laurel, Mississippi, is using this technique again with ElectraTherm Green Machines.  It replaced Denbury’s electric submersible pump and cut electricity costs by a third. GCGE has a second 50-kW geothermal natural gas coproduction project in Louisiana.

University of North Dakota was awarded $1.7 million through the DOE’s Geothermal Technologies Program to install a geothermal Organic Rankine Cycle (ORC) system at another oilfield operated byDenbury. For two years the plant will be used to develop engineering and economic models for geothermal ORC energy production. The technology could be used throughout the Williston Basin.

Liberty County Pilot Project

Texas is oil country, and the 4000+ dormant oil and gas wells speckled across the landscape provide a new, or perhaps recycled, frontier in geothermal energy production.  To tap some of that energy,Universal GeoPower CEO and petroleum geologist George Alcorn Jr. and his partner, Chris Luchini, a PhD physicist will use the $1.5 million in federal stimulus funds that they were awarded to bring geothermal energy to Liberty County, Texas. The company said that to prepare its DOE application, it worked with Southern Methodist University. The university has performed extensive research on coproduction and has found that it is applicable to an estimated 37,500 oil and gas wells in the Gulf Coast region.

Universal GeoPower’s pilot project is expected to be one of many that will recomplete the wells to produce low temperature, geopressured brine water. The brine will run through a commercial off-the-shelf turbo expander and an ORC binary generator.

Alcorn spoke recently at GEA’s global geothermal meeting in Washington, DC, offering a snapshot of the economic benefits of the process. “The lead-time to revenue generation is about 6 months, whereas traditional geothermal can take up to five years,” he said. “The wells already have known geothermal potential, and capital costs are dramatically reduced.”

Additionally, Alcorn noted, units are installed at existing oil wells, eliminating the need for investment in drilling, new roads or transmission lines. […]”<

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Chile’s Mines Run on Renewables

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Chilean mines are more and more run on renewable energy, which will soon be bigger than conventional energy in Chile. Thanks to China, writes John Mathews.

Source: www.energypost.eu

>” […] Miners in Chile are building independent solar, solar thermal, wind and geothermal power plants that produce power at costs competitive with or lower than conventional fuel supplies or grid-connected electric power.

Consider these facts.

The Cerro Dominador concentrated solar power (CSP) plant (see here for an explanation of the different solar technologies), rated at 110 megawatts, will supply regular uninterrupted power to the Antofagasta Minerals complex in the dry north of Chile, in the Atacama desert. Construction began in 2014. This is one of the largest CSP plants in the world, utilising an array of mirrors and lenses to concentrate the sun’s rays onto a power tower, and utilising thermal storage in the form of molten salts, perfected by Spanish company Abengoa. It will supply steady, dispatchable power, day and night.

The El Arrayán wind power project, rated at 115 megawatts, now supplies power to the Los Pelambres mine of Antofagasta Minerals, using Pattern Energy (US) as technology partner. Antofagasta Minerals has also contracted with US solar company SunEdison to build solar panel arrays at the Los Pelambres mine, with a power plant rated at 70 megawatts; while the related plant operated by Amenecer Solar CAP is rated at 100 megawatts, the largest such array in Latin America when it came online in 2014.

There are many more such projects under review or in the pipeline. The Chilean Renewable Energy Center reported in 2014 that the pipeline of renewable power projects in Chile added up to 18,000 megawatts (or 18 gigawatts), which is more than the country’s entire current electric power grid. […]”<

 

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University Researchers Find Abandoned Wells Leak Substantial Quantities of GHG’s (Methane)

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After testing a sample of abandoned oil and natural gas wells in northwestern Pennsylvania, the researchers found that many of the old wells leaked substantial quantities of methane.

Source: www.princeton.edu

>” […] To conduct the research, the team placed enclosures called flux chambers over the tops of the wells. They also placed flux chambers nearby to measure the background emissions from the terrain and make sure the methane was emitted from the wells and not the surrounding area.

Although all the wells registered some level of methane, about 15 percent emitted the gas at a markedly higher level — thousands of times greater than the lower-level wells. Denise Mauzerall, a Princeton professor and a member of the research team, said a critical task is to discover the characteristics of these super-emitting wells.

Mauzerall said the relatively low number of high-emitting wells could offer a workable solution: while trying to plug every abandoned well in the country might be too costly to be realistic, dealing with the smaller number of high emitters could be possible.

“The fact that most of the methane is coming out of a small number of wells should make it easier to address if we can identify the high-emitting wells,” said Mauzerall, who has a joint appointment as a professor of civil and environmental engineering and as a professor of public and international affairs at the Woodrow Wilson School.

The researchers have used their results to extrapolate total methane emissions from abandoned wells in Pennsylvania, although they stress that the results are preliminary because of the relatively small sample. But based on that data, they estimate that emissions from abandoned wells represents as much as 10 percent of methane from human activities in Pennsylvania — about the same amount as caused by current oil and gas production. Also, unlike working wells, which have productive lifetimes of 10 to 15 years, abandoned wells can continue to leak methane for decades.

“This may be a significant source,” Mauzerall said. “There is no single silver bullet but if it turns out that we can cap or capture the methane coming off these really big emitters, that would make a substantial difference.” […]”<

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Commodity Copper Price Forecast Drops on Rising Dollar, Falling Oil

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Copper prices will fall next year as a strengthening U.S. dollar and weaker oil prices push down marginal production costs, according to Goldman Sachs Group

Source: www.hellenicshippingnews.com

>” […]

Copper for delivery in three months on the London Metal Exchange fell 0.3 percent to $6,682 a ton at 12:44 p.m. in Shanghai. Prices are down 9.2 percent this year and headed for a second annual decline.

The bank said prices could fall below its estimates to average $5,600 a ton if China’s state stockpiling agency stops buying copper. The State Reserve Bureau will buy 500,000 tons of refined copper this year and 200,000 tons in 2015, supporting prices at around $6,200 to $6,300 a ton, according to the bank

The U.S. dollar’s rise will reduce marginal costs of copper mine production as 83 percent of operating costs are in local producing-country currencies, the bank said in the report. The Bloomberg Dollar Spot Index, which measures the greenback against a basket of 10 peers, is up 7.5 percent this year.

Lower energy and labor expenses, as well as the cost of equipment such as steel needed to grind copper ore and mining explosives, point to declining production costs over the next six to 12 months, the bank said. Brent crude, the global oil benchmark, has fallen 29 percent this year.

The bank lowered its six-month price forecast to $6,200 a ton from $6,600 and its 12-month outlook to $6,000 a ton from $6,200.”<

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Fracking linked to BC’s liquefied natural gas gambit

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A surplus of natural gas in North America explains why the B.C. government is so desperate to launch a new industry

Duane Tilden‘s insight:

>“The prices that the [B.C.] government is looking at in paving the roads with gold is basically based on these short-term factors that are not likely to persist,” Lee said.

Natural Gas Development Minister Rich Coleman did not make himself available for an interview to respond to Lee’s comments.

B.C. misread U.S. energy revolution

The B.C. government missed the mark with its earlier forecasts on royalties because it failed to predict an explosion in U.S. energy production.

This largely came about through hydraulic fracturing, otherwise known as “fracking”, and horizontal drilling. Technological innovations in fracking generated huge new supplies, causing North American natural-gas prices to plummet.

The falling prices resulted in fewer royalties flowing into the B.C. government treasury.

Fracking involves pumping huge amounts of water along with sand and chemicals into shale-rock formations to free trapped gas.

Horizontal drilling enables companies to retrieve locked supplies by moving the drill bit across a deposit rather than going straight down.

A single platform can send horizontal drills in a multitude of directions, enhancing efficiency and saving money.

In his 2013 book, The Frackers: The Outrageous Inside Story of the New Billionaire Wildcatters (Penguin), Gregory Zuckerman chronicled how a handful of U.S. energy-industry outcasts refined these techniques and caused an American energy revolution.

“To me, it’s fascinating that this resurgence started in 2007 and 2008, which is right when America was sort of on its back,” he told the Straight by phone.

Zuckerman, a Wall Street Journal reporter, said that the United States is now producing about eight million barrels of oil per day, up from five million barrels per day in 2008.

In addition, U.S. natural-gas production rose more than 21 percent between 2008 and 2013.

ExxonMobil CEO Rex Tillerson has predicted that the U.S. will be energy self-sufficient by 2020.

The Frackers reveals that the people who spearheaded this sharp increase in energy production were not working for major oil companies like ExxonMobil, Shell, BP, or Chevron.

Rather, they were an assortment of little-known wildcatters from Texas and Oklahoma—George Mitchell, Aubrey McClendon, Tom Ward, and Harold Hamm—who became billionaires as a result.

They crisscrossed areas with shale reserves, buying drilling rights from property owners. Although there has been a lot of howling from environmentalists about the contamination of water supplies with fracking chemicals, the industry continues to grow.

“Everyone focuses on fracking—and fracking is key, as is horizontal drilling—but the most important thing is that innovators like Mitchell got it to work in shale, which everyone kind of ignored, especially the big guys and the experts,” Zuckerman said.

By targeting shale, Zuckerman maintained, Mitchell changed the country and the world.

That’s because manufacturers with high natural-gas input costs—such as makers of chemicals, tires, cement, and aluminum—are basing operations in the United States because of the low natural-gas prices. And Zuckerman said that this will give the U.S. a competitive advantage against other countries for years to come.

“Some economists say as many as two million jobs are going to be created,” he stated.<

See on www.straight.com

Surplus fossil fuels expected to exceed carbon budget

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It won’t be difficult to blow by the 1-trillion ton threshold based on the amount of fossil fuels still in the ground. As Amy Myers Jaffe remarks, “scarcity will not be the force driving a shift to alternative energy. Climate and energy policy initiatives will have to take into consideration the possibility of oil and gas surpluses and lower fossil fuel prices.”

Duane Tilden‘s insight:

>The lesson here is that the economics are still in favor of producing fossil fuels. The cyclical nature of energy prices suggests that higher prices will spur development of technologies to reach more difficult energy deposits. This doesn’t mean that oil and natural gas prices will be low for the rest of time, but it does reflect how high energy prices in the 2000s led not only to funding and research in alternative fuels (particularly biofuels), but also in oil and gas technologies. This investment coupled with decades of U.S. government and academic research proved fruitful with the combination of horizontal drilling and hydraulic fracturing becoming a deployable technology.

We have now entered a period of energy surplus where we produce energy from “unconventional sources” using technological breakthroughs like horizontal drilling and hydraulic fracturing in places like North Dakota, south Texas, Lousiana, and Pennsylvannia. (and soon to be California?).<

See on blogs.scientificamerican.com

GE seeks to Clean up Fracking’s Dirty Water Problem

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GE has demonstrated technology aimed at addressing one of the biggest challenges with fracking: water pollution.

Duane Tilden‘s insight:

>Concerns about water pollution and other environmental issues related to fracking have led some places, including France and New York State, to block the process. As fracking increases in dry areas and places that lack adequate treatment and disposal options, pressure to block it could grow.

“Water-treatment technology is going to become more and more critical as the industry moves forward,” says Amy Myers Jaffe, executive director of energy and sustainability at the University of California at Davis, and a new member of a GE environmental advisory board. She says the continued use of fracking depends on the “industry getting its act together to do it in an environmentally sustainable way.”

Better water-treatment options could change the way oil and gas producers operate by making it economical to treat water at fracking sites instead of trucking it long distances to large water-treatment facilities or disposal wells. The technology is specifically targeted to places such as the Marcellus shale, one of the largest sources of shale gas in the U.S., where wastewater is far too salty for existing on-site treatment options (see “Can Fracking Be Cleaned Up?” and “Using Ozone to Clean Up Fracking”).

Each fracking well can require two to five million gallons of fresh water, which is pumped underground at high pressure to fracture rock and release trapped oil and gas. Much of that water flows back out, carrying with it the toxic chemicals used to aid the fracking process, as well as toxic materials flushed from the fractured rock.

Producers currently reuse much of that water, but that involves first storing it in artificial ponds, which can leak, and then diluting it, a step that consumes millions of gallons of fresh water. Eventually they can’t reuse the water any more so they need to ship it, often over long distances, to specialized treatment and disposal locations. Transporting the wastewater is expensive, and it comes with a risk of spills. At disposal sites, the wastewater is injected deep underground in a process that can cause earthquakes.

The new technology would make it unnecessary to dilute the wastewater, or transport it for treatment or disposal. […]<

See on www.technologyreview.com

BP battles for billions in latest Gulf Oil Spill pollution trial

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HOUSTON/LONDON (Reuters) – BP will battle to hold down fines that could hit $18 billion in a new phase of the Gulf of Mexico trial that will rule on how much oil it spilled in 2010 and judge its efforts…

Duane Tilden‘s insight:

>POLLUTION FINES

BP says 3.26 million barrels leaked from the well during the nearly three months it took to cap the blowout at the Deepwater Horizon rig; the U.S. government says it was 4.9 million. Both those totals include 810,000 barrels that were collected during clean-up and which Barbier has agreed to exclude.

This month, BP’s lawyers questioned the government’s figure. “United States experts employ unproven methods that require significant assumptions and extrapolations in lieu of … available data and other evidence,” they said in a filing.

They have also sought to convince Barbier that if the company is to be found guilty, it should amount to only “negligence” and not “gross negligence” – a crucial distinction since the latter carries much higher maximum penalties.

Under the Clean Water Act, negligence can be punished with a maximum fine of $1,100 for each barrel of oil spilled; a gross negligence verdict carries a potential $4,300 per barrel fine.

If the court judged the spill to have been 4.09 million barrels – the government estimate less oil recovered – the price of negligence could reach $4.5 billion. Gross negligence, in the costliest scenario, could run to $17.6 billion.<

See on www.reuters.com

State’s First Fracking Regulation Will Go Into Effect Next Year

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By Sharon Bernstein SACRAMENTO, Calif., Sept 20 (Reuters) – California’s first regulations on fracking and related oil production practices will go into effect next year in the most populous U.S.

Duane Tilden‘s insight:

>State Senator Fran Pavely, a Democrat who represents the Los Angeles suburb of Agoura Hills and was the author of the new law, said the regulations would stop oil companies from fracking in the state without full disclosure of their methods.

“Oil companies will not be allowed to frack or acidize in California unless they test the groundwater, notify neighbors and list each and every chemical on the Internet,” Pavely said. “This is a first step toward greater transparency, accountability and protection of the public and the environment.”

Opposing the measure along with the environmentalists was the oil industry, which said the new law could make it difficult for California to reap the benefits offered by development of the Monterey Shale, including thousands of new jobs, increased tax revenue, and higher incomes for residents.

The law “could create conditions that will make it difficult to continue to provide a reliable supply of domestic petroleum energy for California,” said Catherine Reheis-Boyd, president of the Western State Petroleum Association, which represents oil companies in California.<

See on www.huffingtonpost.com