Tight gas

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While shale gas is natural gas extracted from rock shale, tight gas describes natural gas that is dispersed within low-porosity silt or sand areas. Tight gas is defined in the U.S. as having less than 10 percent porosity and less than 0.1 millidarcy permeability.^[1] Tight gas is held in pores up to 20,000 times narrower than a human hair.^[2]

In general, the same drilling and completion technology used with shale gas - fracking - is also used to access and extract tight gas.^[3]

References

↑ Ben E. Law and Charles W. Spencer, 1993, "Gas in tight reservoirs-an emerging major source of energy," in David G. Howell (ed.), The Future of Energy Gasses, US Geological Survey, Professional Paper 1570, p.233-252.
↑ "Understanding Tight and Shale Gas," Shell website, accessed April 2013.
↑ McCoy, Mark (2007). "Tight Gas Reservoir Simulation: Modeling Discrete Irregular Strata-Bound Fracture Networks and Network Flow, Including Dynamic Recharge from the Matrix" (PDF). National Energy Technology Laboratory. Retrieved 27 October 2011. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

External links

CERA - collection of market and industry reports
DOE/EIA EIA Natural Gas Weekly Update - current NG prices and market analysis
Natural Gas Media- Natural Gas News and Analysis for Investment and Trading
"The Implications of Lower Natural Gas Prices for Electric Generators in the Southeast," U.S. Energy Information Administration, May 2009

Related GEM.wiki articles

State-by-state fracking profiles

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External Resources

Wikipedia also has an article on natural gas. This article may use content from the Wikipedia article under the terms of the GFDL.

[1] Ben E. Law and Charles W. Spencer, 1993, "Gas in tight reservoirs-an emerging major source of energy," in David G. Howell (ed.), The Future of Energy Gasses, US Geological Survey, Professional Paper 1570, p.233-252.

[2] "Understanding Tight and Shale Gas," Shell website, accessed April 2013.

[netl-3] McCoy, Mark (2007). "Tight Gas Reservoir Simulation: Modeling Discrete Irregular Strata-Bound Fracture Networks and Network Flow, Including Dynamic Recharge from the Matrix" (PDF). National Energy Technology Laboratory. Retrieved 27 October 2011. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

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