"Reservoirs are typically porous sandstones, limestones or dolomite rocks, but also include "unconventional reservoirs" such as shale rock or coal beds." http://en.wikipedia.org/wiki/Hydraulic_fracturing#Mechanics
" The majority of wells are completed on 640- or 1280-acre spacing resulting in 5000- and 10,000-ft horizontal wellbores, respectively. " http://www.undeerc.org
Kansas City Gas Explosion: 1 Body Found, 15 Injured as Restaurant Is Destroyed
A body was recovered this morning from the scene of a natural-gas explosion that ripped through a popular downtown restaurant in an upscale section of Kansas City, Mo., Tuesday night, leaving 15 people injured.
The body has yet to be identified and three of the injured are in critical condition.
Witnesses say the huge fireball, which engulfed an entire city block Tuesday night, could be seen for miles. The explosion destroyed JJ's restaurant and rattled windows blocks away.
"Everything shook, and you could feel it almost as much as you could hear it," one witness said. "It was by far the biggest explosion I've ever felt in my life."
...It is believed that a contractor might have hit an underground natural-gas line.
It almost smelled like the radiators were seeping out gas," one witness said. "Strong enough for us to call the landlord to say something was wrong."
Look at the map below and notice that the area (as updated in 2011) is a basin for natural gas. Look at the articles as proof to follow.
Fracking in Kansas pushes water permits to new high
BY SEAN COCKERHAM
WASHINGTON — Property owners near shale gas wells are liable to suffer a major loss in value because of worries over water contamination, according to economists from Duke University and the nonprofit research organization Resources for the Future.Their study found Pennsylvania homeowners who use local groundwater for drinking lost up to 24 percent of their property value if they are within a mile and a quarter of a shale gas well.
...The study is among the first attempts to measure the impact on property owners of the shale gas boom sweeping the nation. It comes as the need for new regulations is being hotly debated and shale gas critics allege people are getting sick from hydraulic fracturing, or fracking, the process in which high-pressure water and chemicals are injected underground to free up the natural gas in shale rock.
...The Ohio State researchers found about a 4 percent drop in property value for households that rely on private well water within a mile of a shale gas well. The drop was bigger and lasted longer for more rural homes surrounded by farmland, according to the Ohio State researchers. They saw a dip of more than 7 percent in value.
“We find evidence that households are negatively impacted by shale gas exploration activity, but this impact largely depends on the proximity and intensity of shale activity and diminishes over time as risk perceptions adjust following the (end) of exploration activity,” they found.
THE ASSOCIATED PRESS
TOPEKA — The Kansas Senate has tentatively approved a measure allowing oil and gas drilling companies to spread clay shavings produced by fracking operations over fields in Kansas.
EPA gives producers breathing room on fracking air pollution controls
StaffKansas City Business Journal
"It's a very low risk area that has a high rate of return," CEO Tom Ward said in a conference call with analysts.
The company plans to spend $700 million in Kansas next year and drill 180 to 200 wells.
After being absent from Kansas for nearly three decades, Big Oil has also decided to return.
Shell Oil has leased about 700,000 acres and drilled a dozen wells so far with mixed results. But a company executive believes there is a "huge upside" in Kansas that could last for decades.
"This is for real," said David Todd, vice president of production for the Shell Exploration & Production Co."
"One mechanism to demonstrate such examples of long-lasting repeated fracturing is the effects of seismic activity, in which the stress levels rise and fall episodically and large volumes of fluid may be expelled from fluid-filled fractures during earthquakes. This process is referred to as "seismic pumping""
"Reservoirs are typically porous sandstones, limestones or dolomite rocks, but also include "unconventional reservoirs" such as shale rock or coal beds."