Tight Gas Sands

Tight Gas Description ImageThe term tight gas sands refers to low-permeability sandstone reservoirs that produce primarily dry natural gas. A tight gas reservoir is one that cannot be produced at economic flow rates or recover economic volumes of gas unless the well is stimulated by a large hydraulic fracture treatment and/or produced using horizontal wellbores. This definition also applies to coalbed methane, shale gas, and tight carbonate reservoirs. Tight sands produce about 6 tcf of gas per year in the United States, about 25% of the total gas produced. The Energy Information Administration estimates that 310 tcf of technically recoverable tight gas exists within the US, representing over 17% of the total recoverable gas. Worldwide, more than 7,400 tcf of natural gas is estimated to be contained within tight sands, with some estimates as large as 30,000 TCF.

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Tight Gas News

Global perspectives required for risk, opportunity analyses

Feb 9, 2009 The world has always held risks for upstream oil and gas companies, and it certainly shows no signs of becoming less risky in the near future.

Unconventional resources to keep pivotal supply role

Jan 26, 2009 For the past several years, leading major oil companies and independent producers have believed unconventional resources to be key elements of future energy supply.

UNCONVENTIONAL GAS TECHNOLOGY—2: Custom technology makes shale resources profitable

Dec 24, 2007 Low permeability shales are unconventional gas reservoirs that are being more efficiently exploited with newly developed production technologies.

SPECIAL REPORT: Model proposed for world conventional, unconventional gas

Dec 17, 2007 A long-term conventional and unconventional natural gas production model has been developed for the world.

SPECIAL REPORT: UNCONVENTIONAL GAS TECHNOLOGY—1: Advances in fracs and fluids improve tight-gas production

Dec 17, 2007 Only 10 years ago, unconventional gas was an emerging resource; now it’s a core business of many large independent producers and a growing number of major operating companies.

UNCONVENTIONAL GAS-Conclusion: Outlook sees resource growth during next decade

Nov 19, 2007 Modeling and analyses indicate that as long as natural gas prices do not fall dramatically unconventional gas production will continue to expand, particularly as investment in improved recovery technology continues and as new plays and prospects are developed.

Canadian drilling pace slows

Oct 22, 2007 Fewer wells are being drilled in Canada this year, equivalent to activity 5-6 years ago.

UNCONVENTIONAL GAS-5: Rising drilling, stimulation costs pressure economics

Oct 15, 2007 The sharp recent rise in well drilling and particularly well stimulation costs has led to the concern that much of the US unconventional gas resource may be becoming uneconomic.

UNCONVENTIONAL GAS-4: Technology, efficiencies keys to resource expansion

Oct 1, 2007 At the core of every successful unconventional gas play are two common themes: the continuous search for improvements in technology and the relentless pursuit of cost and operating efficiencies.

Shale plays send PGC’s US gas resources estimates higher

Sep 24, 2007 Shale gas plays in four US Midcontinent basins provided most of the impetus as estimated US natural gas resources grew dramatically from the end of 2004 to the end of 2006, the Potential Gas Committee said in its latest biennial report.

UNCONVENTIONAL GAS-2: Resource potential estimates likely to change

Sep 17, 2007 Understanding of the unconventional-gas resource base has improved in the past decade, but many unknowns remain.

UNCONVENTIONAL GAS-1: Reserves, production grew greatly during last decade

Sep 3, 2007 From an emerging resource 1 decade ago, and a mostly overlooked resource 2 decades ago, unconventional gas is now a core business of many large independent producers and a growing number of the major oil and gas companies.

SPECIAL REPORT: Upstream production capacities to advance in many countries

Jul 23, 2007 Many oil and gas projects are set to come on stream in the next few years and help meet expected increases in the world’s energy demands.

Models provide insights on North American gas future

Jul 2, 2007 Models using a history match of past production and a bell-curve approach provide an insight to the various estimates for ultimate recovery of conventional and unconventional gas resources in North America.

Various technologies unlock Pinedale anticline tight gas

Jun 25, 2007 Various technologies have enabled Shell Exploration & Production Co. to produce economically from the tight gas sands found in the Pinedale anticline of Western Wyoming.

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