Posts Tagged ‘horizontal drilling technology’

By Laura Legere (Staff Writer)
Published: August 13, 2010

There are no unleased acres left in Pennsylvania’s state forests where Marcellus Shale natural gas drilling sites, pipelines and access roads could be built without damaging environmentally sensitive areas, according to a new analysis by the Department of Conservation and Natural Resources.

Nearly 139,000 acres of state forest have been leased for gas drilling since 2008 and money from those lucrative leases – a total of $354 million – has been used to help balance the last two state budgets.

But DCNR Secretary John Quigley said the era of leasing large parcels of state forests for gas drilling is over.

“We may do some little stuff here and there,” he said, “but in terms of large-scale leasing, we’re done.”

The department’s findings, demonstrated in a series of overlain maps on DCNR’s website, show the forests in northcentral Pennsylvania above the gas-rich Marcellus Shale crowded by leased land, parcels where the state does not own the mineral rights and places where development must be restricted.

Of the 1.5 million acres of state forest underlain by the shale, 700,000 acres have already been leased or the mineral rights under them are controlled by an owner other than the state.

An additional 702,500 acres are in ecologically sensitive areas – places with protected species, forested buffers, old growth or steep slopes. Another 27,500 acres are designated as primitive and remote lands, 49,600 acres were identified through a forest conservation analysis as priority conservation lands, and the last 20,400 acres are so entwined with the other sensitive areas that they cannot be developed without damaging them.

The department began to study the limits of the state forest land that can safely be leased to gas drillers as it developed a series of Marcellus gas leases in 2008 and January and May 2010.

Gas drilling has taken place on state forest land for over six decades, and mineral extraction is one of the forest’s designated uses, along with sustainable timber harvesting, recreation and conservation. But, Mr. Quigley said, “There are limits to how much you can develop the resource and maintain balance. And I think we’re there.”

There are currently about 10 producing Marcellus Shale gas wells in the state forest. The department expects there will be about 6,000 wells on 1,000 separate drilling pads when the resource is fully developed in 15 or 20 years.

The secretary said the prime consideration for any future leasing, “if we do any at all,” will be that drilling or associated activities not disturb the forest’s surface – a possibility with horizontal drilling technology that enables drillers to access the mile-deep shale from adjacent properties.

The impact of the DCNR’s findings is unclear.

Gov. Ed Rendell said earlier this year that no additional forest land will be offered for lease during his tenure, which ends in January, but the department’s findings have no legal bearing on the next administration’s ability to change its forest policy.

A bipartisan group of lawmakers in the House passed a three-year moratorium on new leasing of state forest land for gas drilling in May, but the measure has not been taken up by the Republican-led Senate.

Patrick Henderson, a spokesman for Sen. Mary Jo White, R-21, Franklin, chairwoman of the Senate Environmental Resources and Energy Committee, said he does not sense “at all” an upswell of support among the members of the Senate to pass it.

Mr. Henderson said the department’s findings “carry some weight,” but he said the claim that there is no forest land left for surface gas development is subjective.

“I think different people can conclude if there may be some tracts of land out of 1.5 million that lie within the fairway to lease,” he said.

A $120 million lease deal DCNR reached with Anadarko Petroleum Corp. in May that is expected to have minimal impact on the state forest’s surface could not have been possible if the House’s moratorium bill had been law, he said.

“There’s something to be said for having a fresh set of eyes under the new administration take a look at it and draw their own conclusions.”

Mr. Quigley was optimistic that if future decisions about forest leasing are left to DCNR, his department’s findings will stand.

“The science tells us that we’ve reached the limit,” he said. “The question becomes whether we will face another occasion when economics looms larger.”

ONLINE http://bit.ly/DCNRmaps

Contact the writer: llegere@timesshamrock.com

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Copyright:  The Scranton Times

By ANDREW MAYKUTH The Philadelphia Inquirer

The state Department of Conservation and Natural Resources signed a $6.15 million agreement Monday with Chesapeake Energy Corp., giving the company the right to drill the Marcellus Shale under a seven-mile stretch of the Susquehanna River in Bradford County.

Under the lease, which applies to 1,500 acres of river between Towanda and the Wyoming County line, Chesapeake is permitted to access the shale with wells drilled on either side of the river. No well bores will penetrate the river itself.

Horizontal-drilling technology makes drilling for gas beneath the waterway feasible. With wells that reach laterally for thousands of feet, operators can capture gas under a large area from a remote location.

The state Department of Environmental Protection says that under-river gas exploration poses no more risk than any of the 1,400 other wells drilled into the Marcellus formation, which is a mile below the surface. The lease is separate from the state’s offering in January of 32,000 acres of state forests, which generated $128.5 million to help close the state budget gap.

The $6.15 million raised by the Susquehanna River lease will help keep open 24 state parks that had been threatened with closure because of the budget crisis, said Christina Novak, DCNR spokeswoman.

DCNR’s Susquehanna River lease may conjure memories of the 1959 Knox Mine disaster in the Port Griffith section of Jenkins Township, when the Susquehanna broke through a coal mine that was dug just below the river bottom. A dozen miners died in the flood.

Geologists say subsidence is not an issue with gas exploration. The well bores are only a few inches in diameter.

Copyright: Times Leader

Cleaner than coal and cheaper than oil, a 90-year supply is under our feet, experts say.

By MARK WILLIAMSAP Energy Writer

An unlikely source of energy has emerged to meet international demands that the United States do more to fight global warming: It’s cleaner than coal, cheaper than oil and a 90-year supply is under our feet.

It’s natural gas, the same fossil fuel that was in such short supply a decade ago that it was deemed unreliable. It’s now being uncovered at such a rapid pace that its price is near a seven-year low.

Long used to heat half the nation’s homes, it’s becoming the fuel of choice when building new power plants. Someday, it may win wider acceptance as a replacement for gasoline in our cars and trucks.

Natural gas’ abundance and low price come as governments around the world debate how to curtail carbon dioxide and other pollution that contribute to global warming. The likely outcome is a tax on companies that spew excessive greenhouse gases. Utilities and other companies see natural gas as a way to lower emissions — and their costs. Yet politicians aren’t stumping for it.

In June, President Barack Obama lumped natural gas with oil and coal as energy sources the nation must move away from. He touts alternative sources — solar, wind and biofuels derived from corn and other plants. In Congress, the energy debate has focused on finding cleaner coal and saving thousands of mining jobs from West Virginia to Wyoming.

Utilities in the U.S. aren’t waiting for Washington to jump on the gas bandwagon. Looming climate legislation has altered the calculus that they use to determine the cheapest way to deliver power. Coal may still be cheaper, but natural gas emits half as much carbon when burned to generate the same amount electricity.

Today, about 27 percent of the nation’s carbon dioxide emissions come from coal-fired power plants, which generate 44 percent of the electricity used in the U.S. Just under 25 percent of power comes from burning natural gas, more than double its share a decade ago but still with room to grow.

But the fuel has to be plentiful and its price stable — and that has not always been the case with natural gas. In the 1990s, factories that wanted to burn gas instead of coal had to install equipment that did both because the gas supply was uncertain and wild price swings were common. In some states, because of feared shortages, homebuilders were told new gas hookups were banned.

It’s a different story today. Energy experts believe that the huge volume of supply now will ease price swings and supply worries.

Gas now trades on futures markets for about $5.50 per 1,000 cubic feet. While that’s up from a recent low of $2.41 in September as the recession reduced demand and storage caverns filled to overflowing, it’s less than half what it was in the summer of 2008 when oil prices surged close to $150 a barrel.

Oil and gas prices trends have since diverged, due to the recession and the growing realization of just how much gas has been discovered in the last three years. That’s thanks to the introduction of horizontal drilling technology that has unlocked stunning amounts of gas in what were before off-limits shale formations. Estimates of total gas reserves have jumped 58 percent from 2004 to 2008, giving the U.S. a 90-year supply at the current usage rate of about 23 trillion cubic feet of year.

The only question is whether enough gas can be delivered at affordable enough prices for these trends to accelerate.

The world’s largest oil company, Exxon Mobil Corp., gave its answer last Monday when it announced a $30 billion deal to acquire XTO Energy Inc. The move will make it the country’s No. 1 producer of natural gas.

Exxon expects to be able to dramatically boost natural gas sales to electric utilities. In fact, CEO Rex Tillerson says that’s why the deal is such a smart investment.

Tillerson says he sees demand for natural gas growing 50 percent by 2030, much of it for electricity generation and running factories. Decisions being made by executives at power companies lend credence to that forecast.

Consider Progress Energy Inc., which scrapped a $2 billion plan this month to add scrubbers needed to reduce sulfur emissions at 4 older coal-fired power plants in North Carolina. Instead, it will phase out those plants and redirect a portion of those funds toward cleaner burning gas-fired plants.

Lloyd Yates, CEO of Progess Energy Carolina, says planners were 99 percent certain that retrofitting plants made sense when they began a review late last year. But then gas prices began falling and the recession prompted gas-turbine makers to slash prices just as global warming pressures intensified.

“Everyone saw it pretty quickly,” he says. Out went coal, in comes gas. “The environmental component of coal is where we see instability.”

Nevada power company NV Energy Inc. canceled plans for a $5 billion coal-fired plant early this year. That came after its homestate senator, Majority Leader Harry Reid, made it clear he would fight to block its approval, and executives’ fears mounted about the costs of meeting future environmental rules.

“It was obvious to us that Congress or the EPA or both were going to act to reduce carbon emissions,” said CEO Michael Yackira, whose utility already gets two-thirds of its electricity from gas-fired units. “Without understanding the economic ramifications, it would have been foolish for us to go forward.”

Even with an expected jump in demand from utilities, gas prices won’t rise much beyond $6.50 per 1,000 cubic feet for years to come, says Ken Medlock, an energy fellow at the James A. Baker III Institute for Public Policy at Rice University in Houston. That tracks an Energy Department estimate made last week.

Such forecasts are based in part on a belief that the recent spurt in gas discoveries may only be the start of a golden age for gas drillers — one that creates wealth that rivals the so-called Gusher Age of the early 20th century, when strikes in Texas created a new class of oil barons.

XTO, the company that Exxon is buying, was one of the pioneers in developing new drilling technologies that allow a single well to descend 9,000 feet and then bore horizontally through shale formations up to 1 1/2 miles away. Water, sand and chemical additives are pumped through these pipes to unlock trillions of cubic feet of natural gas that until recently had been judged unobtainable.

Even with the big increases in reserves they were logging, expansion plans by XTO and its rivals were limited by the debt they took on to finance these projects that can cost as much as $3 million apiece.

Under Exxon, which earned $45.2 billion last year, that barrier has been obliterated.

Copyright: Times Leader