Posts Tagged ‘U.S.’
What is Shale Gas, and How is it Being Used?
Natural gas captured from organic shale formations is not new to the oil and gas industry; shale gas has been produced since the early 1800s (DOE, 2009). Most shale gas formations have historically been deemed economically impractical to drill due to the available technology and relative abundance of domestic conventional natural gas sources. However, recent technological advances in horizontal drilling and hydraulic fracturing along with increasing demand for natural gas and recent price trends for natural gas, have allowed previously inaccessible reserves to become technologically feasible and economically efficient to recover (DOE, 2009).
The Annual Energy Outlook for 2009, recently released by the United States’ Energy Information Administration, projects an increase of 0.5% total primary energy consumption annually through 2030 (EIA, 2009). The majority of this demand increase will come from the residential sector’s demand for additional electricity (EIA, 2009). Currently, coal-fired electricity generation dominates the electricity generation sector at approximately 49% of total U.S. domestic generation capacity (EIA, 2009). However, due to emerging concerns and public policy developments regarding greenhouse gases and renewable portfolio standards for a sustainable energy supply, lower carbon energy sources needed for electricity generation are expected to gain marketplace demand (EIA, 2009). Unfortunately, conversion from a fossil fuel-dependent energy economy to a low-carbon energy economy will take time and significant capital investment for infrastructure development (DOE, 2009). A recent Wall Street Journal article cites Carl Pope, executive director of the Sierra Club as viewing natural gas as a “bridge fuel” from carbon-intensive fossil fuels, such as coal and petroleum, to cleaner future fuel sources (Casselman, 2009).
In order to meet the expected increased demand for natural gas without increasing dependence on foreign imports, development of domestic unconventional natural gas sources will need to grow rapidly. Production from unconventional natural gas sources, namely organic shales, tight sand formations, and coal-bed methane, currently account for approximately 50% of the total domestic natural gas production (DOE, 2009), this total production from unconventional resources was estimated at 8.9 trillion cubic feet (Tcf) per year in 2007 (ALL, 2008c). Of the 8.9 Tcf of unconventional natural gas produced in the United States in 2007, 1.2 Tcf was from shale formations; however, shale gas production is expected to grow to 4.2 Tcf by 2030, accounting for an estimated 18% of the total U.S. gas production in 2030. Unconventional sources combined are predicted to grow to nearly 56% of total U.S. domestic natural gas production (EIA, 2009). To date, four evolving shale gas plays (Haynesville, Marcellus, Fayetteville and Woodford) are estimated to have over 550 Tcf of total recoverable gas resources, these formatiosn are expected to be capable of providing sustainable production of 2-4 Tcf of natural gas annually for decades (DOE, 2009). Of these four, the Haynesville Shale and Marcellus Shale may have the most significant additions to domestic reserves of natural gas in recent decades.
Copyright: GoMarcellusshale.com
Law on gas drilling still in flux, public told
A panel offers an update on legislation, which turns out to center on money.
By Rory Sweeney rsweeney@timesleader.com
Staff Writer
BENTON – With interest increasing in drilling for natural gas in the Marcellus Shale, there’s a whole swirl of legislation related to it being considered in Harrisburg, but much of it comes down to money.
“A lot of what goes on in Harrisburg is who’s gonna pay to make the pie and who’s going to get a piece,” said state Rep. Garth Everett, R-Lycoming. “The fight is how we’re going to divide up the pie. … We want to see the Commonwealth get its fair share, but we also don’t want to … go New York on them and drive them away.”
Everett was among two other representatives – Karen Boback, R-Harveys Lake, and David Millard, R-Columbia – who spoke on Thursday evening at a meeting of the Columbia County Landowners Coalition.
A state Department of Environmental Protection official and a Penn State University educator were also on the panel.
Everett described the intention and status of nearly 20 bills throughout the legislature, noting that they fit into four categories: taxation and where the money goes, water protection, access to information and surface-owner rights.
While some likely won’t ever see a vote, Everett said a few will probably pass this session, including a bill that would require companies to release well production information within six months instead of the current five years.
He said a tax on the gas extraction also seems likely “at some point.”
For the most part, the industry received a pass at the meeting, with most comments favorable. One woman suggested companies might underreport the amount of gas they take out and questioned what’s being done to help landowners keep them honest.
Dave Messersmith of Penn State suggested that an addendum to each lease should be the opportunity for an annual audit of the company’s logs.
Robert Yowell, the director of the DEP’s north-central regional office, said the rush to drill in the shale happened so quickly that DEP is still trying to catch up with regulations. Likewise, he said, companies are still becoming acquainted with differences here from where they’re used to drilling.
“When they first came to town, I don’t think they realized how widely our streams fluctuated,” he said.
He added some public perceptions need to be changed – such as the belief that people aren’t naturally exposed to radiation all the time – and that he felt confident that “this can be done safely.”
In response to contamination issues in Dimock Township in Susquehanna County, DEP is upgrading and standardizing its requirements for well casings, Everett said. He added that it’s being suggested the contamination in might have been caused by “odd geology.”
“Every time humans do anything, there’s an impact on the land,” he said. “We just need to balance this right so that we end up with something we’re happy with when we’re done.”
Rory Sweeney, a Times Leader staff writer, may be reached at 970-7418.
View the original article here
Fueling up with natural gas
By JOSEPH B. WHITE The Wall Street Journal
First it was ethanol made from corn. Then ethanol made from twigs and stems and trash. Then, the future was going to belong to hydrogen. Now, the alternative fuel flavor of the month in Washington is natural gas.
You may know this already, thanks to vigorous public-relations campaigns mounted to promote natural gas as a vehicle fuel by energy billionaire T. Boone Pickens and allies such as Chesapeake Energy Chairman and Chief Executive Officer Aubrey McClendon. Mr. Pickens touts natural gas as a fuel for cars as part of his broad “Pickens Plan” to reduce America’s dependence on foreign oil.
Mr. Pickens, in a television ad, summarizes his case for using natural gas as a vehicle fuel in nine words: “It’s cleaner. It’s cheaper. It’s abundant. And it’s ours.”
Nothing is ever that simple in the energy business. A lot of natural gas isn’t “ours.” It belongs to the same companies that currently supply us with oil, or to big gas utilities such as Ch esapeake. But Mr. Pickens is correct when he says that natural gas is abundant in the U.S. Recent advances in drilling technology have made it possible to exploit gas reserves that weren’t economical to tap before, such as the Marcellus Shale in the Appalachian region of the Northeastern U.S.
The macro problem that Mr. Pickens and gas industry executives need to solve is what to do with all that new gas – assuming it becomes available as forecast. Already, natural-gas prices have slumped about 40 percent since May. Grabbing some of petroleum’s more than 90 percent share of the U.S. vehicle fuels market is a smart strategy for the gas industry.
The question for consumers who don’t own shares in natural-gas companies is whether a compressed-gas fueled vehicle is a better deal than some other green technology, or the status quo.
The only natural gas car on the U.S. market right now is a Honda Civic GX. Honda Motor Co. let me borrow one for a few days to road t est the NGV (natural-gas vehicle) lifestyle.
Driving the Civic GX isn’t different than driving a standard, petrol-fueled car. My white test car had an automatic transmission and the usual bells and whistles. The adventure of driving a natural-gas fueled Civic only starts when the fuel gauge gets close to empty – and that happens fairly quickly because the car’s range is only 200 to 220 miles between fill-ups.
At this point, you’ll need an Internet connection to help you find a public natural-gas vehicle refueling station in your metro area. If you are fortunate will you find one in your ZIP code, because there are only about 1,100 natural-gas refueling stations in the U.S. The closest one to my house was about 18 miles away at a depot owned by the City of Ann Arbor.
The unmanned refueling station had an imposing looking pump with two hoses that dispensed compressed gas at different pressures. The Civic’s manual explained that I should use the one marked 360 0 pounds per square inch. Behind the Civic GX’s fuel door is a nozzle fitting. After a couple of tries, I got the fitting from the high-pressure hose properly locked on, and threw a lever on the pump to “On” to start the flow.
I realize it was irrational and techno-phobic to worry that I would somehow overfill the compressed gas tank on board the car and turn my Civic into an explosive device. Let’s say that I was nervous enough that I had done something wrong that when the pump shut off automatically, I was relieved, even though the system had only refilled the tank to the half-full mark. Mr. Pickens could add another element to his plan: It will create jobs for filling station attendants who can help nervous natural-gas newbies.
On the positive side, my natural gas was about half the price of the equivalent quantity of gasoline – $1.94 a gallon.
The Honda Civic GX illustrates almost perfectly the chicken-and-egg problems besetting efforts to wean personal transportation in the U.S. away from petroleum fuels.
Because there aren’t many natural-gas refueling stations, Honda only builds a couple of thousand natural-gas Civics a year, and other car makers are reluctant to push the technology to consumers. Because there are so few natural-gas vehicles, outside of commercial or government fleets, fuel retailers don’t have much incentive to sink $500,000 to $750,000 into a natural-gas refilling station capable of handling cars as rapidly as a conventional gas station can, says Richard Kolodziej, president of NGV America, a Washington advocacy group that represents about 100 natural-gas companies and other enterprises with a stake in promoting natural gas as a motor fuel.
Because there is little demand for natural-gas vehicles, the ones that are available come with a hefty price premium, in part because their fuel tanks aren’t molded plastic, but are instead heavily engineered, high-pressure tanks. A Civic GX lists for ab out $24,590, compared to about $17,760 for the mid-range Civic LX on which it is based. Tax credits can offset as much as $4,000 of that price. And in some states, natural-gas cars can use high-occupancy vehicle express lanes – a major perk for time-pressed commuters.
The Civic GX achieves about 24 miles to the gallon in the city and 36 on the highway, when its consumption is converted to gasoline equivalent miles per gallon, Honda says. The Environmental Protection Agency estimates the GX’s annual fuel costs at $884 a year, compared to $1,987 a year for a petroleum-fueled Civic. That indicates a payback, after the tax credit, of about 2½ years on the premium over the standard car.
One problem with the natural-gas Civic, Mr. Kolodziej concedes, is that it doesn’t look any different than a normal car. It doesn’t advertise the owner’s green cred the way a Prius does. “Where’s the sex in that?” He asks. “The sex comes in when you fill up for $10.”
Mr. Kolodzie j says he refuels his Civic GX using a Phill home-fueling system. This costs about $5,000 and allows a natural-gas vehicle owner to refuel overnight with gas from the lines running into the house. (A $1,000 tax credit is available for the Phill system.) But the hardware in Mr. Kolodziej’s garage isn’t all that’s different. He also says he doesn’t care that the vehicle has a limited range and takes hours to refill using the home refueling device.
“I go to work. I go to the store,” he says. “That’s what 99 percent of people do. Americans want to be able to drive to California tomorrow. They won’t.”
Mr. Kolodziej would say that. But he’s right. A switch to natural-gas cars would require a change of attitudes and expectations both by consumers and car makers. More of us would need to accept owning a car that can do one job – commuting and running errands in fewer than 200 miles a day. It’s the same fundamental proposition behind plug-in hybrids such as the Chevrolet Volt or plug-in Prius.
The big hurdle for natural-gas vehicles is that somebody will need to invest substantial sums in a consumer refueling infrastructure. The gas industry was hoping that somebody would be Uncle Sam. Unfortunately, Congress just found out last week it may have to spend $700 billion salvaging the global financial system. That could put big federal subsidies for natural-gas cars – and a lot of other worthy ideas – on the back burner.
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Send comments about Eyes on the Road to joseph.white@wsj.com.
Copyright 2008 The Associated Press.
Posted At: Times Leader
Regional gas field entices
Energy resource below Appalachia in four states seen as possible boon.
GENARO C. ARMAS Associated Press Writer
STATE COLLEGE — More than a mile beneath an area of Appalachia covering parts of four states lies a mostly untapped reservoir of natural gas that could swell U.S. reserves.
Geologists and energy companies have known for decades about the gas in the Marcellus Shale, but only recently have figured out a possible – though expensive – way to extract it from the thick black rock about 6,000 feet underground.
Like prospectors mining for gold, energy executives must decide whether the prize is worth the huge investment.
“This is a very real prospect, very real,” said Stephen Rhoads, president of the Pennsylvania Oil and Gas Association. “This could be a very significant year for this.”
The shale holding the best prospects covers an area of 54,000 square miles, from upstate New York, across Pennsylvania into eastern Ohio and across most of West Virginia – a total area bigger than the state of Pennsylvania.
It could contain as much as 50 trillion cubic feet of recoverable natural gas, according to a recent study by researchers at Penn State University and the State University of New York at Fredonia.
The United States produces about 19 trillion cubic feet of gas a year, so the Marcellus field would be a boon if new drilling technology works, Penn State geoscientist Terry Engelder said.
“The value of this science could increment the net worth of U.S. energy resources by a trillion dollars, plus or minus billions,” he said.
The average consumer price for natural gas in the United States is forecast to rise 78 percent between the 2001-2002 and 2007-2008 winter heating seasons, which last from October to March. Prices will go from $7.45 to $13.32 per thousand cubic feet this season, according to the federal Energy Information Administration.
That translates into the average season bill nearly doubling during the same period from $465 to $884.
One of the main players in Pennsylvania, Range Resources Corp., of Fort Worth, Texas, has roughly 4,700 wells statewide – though it’s the results from five new horizontal wells in southwestern Pennsylvania that have company executives especially hopeful.
The company, in a December financial report, estimated that two horizontal wells are producing roughly 4.6 million cubic feet of gas per day. Tests on an additional three recently completed horizontal wells showed potential for a total of 12.7 million cubic feet of gas per day.
“We’re extremely encouraged. We see many viable parts of the Marcellus that will be commercial,” said Range Senior Vice President Rodney Waller.
Yet he cautioned it was still too early to determine how successful the venture could be because of limited data.
The upfront money may give some pause to prospectors. A typical well that drills straight down to a depth of about 2,000 to 3,000 feet costs roughly $800,000.
But in the Marcellus Shale, Range and other companies hope a different kind of drilling might yield better results – one in which a well is dug straight down to depths of about 6,000 feet or more, before making a right angle to drill horizontally into the shale. That kind of well could cost a company $3 million to build, not counting the cost of leasing the land, Engelder said.
So the multimillion-dollar question is whether that technology can consistently release the gas from the layer of rock hundreds of millions of years old.
Scientists had long thought the Marcellus served as a source perhaps for shallower wells dug by conventional drills. Previous attempts to extract gas conventionally from the Marcellus haven’t led to much success.
According to Engelder, a series of seams, or fractures, in the rock could hold the key.
Drilling horizontally into this matrix could help give the gas an outlet to escape, said Engelder, a principal owner in Appalachian Fracturing Systems Inc., a consulting firm to gas companies.
Homeowners are intrigued, too. About 80 people packed into a lecture hall at Penn State Wilkes-Barre for a gas drilling information seminar sponsored by the university’s cooperative extension.
People such as Carl Penedos, who owns 150 acres of Wyoming County, relayed stories of gas company representatives knocking on the doors of neighbors seeking to lease land. A couple of neighbors recently signed leases for $50 per acre per year, while others have been offered $500 per acre, he said.
The homebuilder said he was also concerned about the potential environmental impact of drilling.
Copyright: Times Leader