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

OGJ Newsletter

Nov 2, 2009

Special Report: Low frequency seismic has numerous E&D applications

Oct 26, 2009 Economic uncertainty, volatile oil and gas prices, and frozen capital markets, combined with growing reservoir complexity, are having a significant effect on oil and gas exploration and development, causing a renewed focus on managing risk and reducing costs.

Equipment/Software/Literature

Oct 19, 2009 The CARBONTRACKER gas metering system is a new development in reservoir characterization for tight gas, underbalanced drilling operations.

Gas-price relief, if not reshaping, seen at meeting

Oct 12, 2009 Setting offers important context to predictions of near-term gains for recently abysmal gas prices in the US.

Special Report: GAS SHALE—1: Seven plays dominate North America activity

Sep 28, 2009 Seven shale plays dominate today's North America natural gas potential reserves additions and production increases.

Special Report: Project start, completion dates become less definite

Aug 10, 2009 Many oil and gas development projects remain on schedule, but companies also have deferred many projects so that start-up and completion dates have become less certain.

Visual road map helps control drilling process

Aug 3, 2009 Drilling supervisors at GDF Suez E&P Deutschland GMBH have used a visual road map to control drilling operations since March 2008.

OGJ Newsletter

Jul 6, 2009

Special Report: Global turmoil reaches international LPG markets

Jun 22, 2009 Less than a year ago global LPG prices approached all-time highs. Since then, the global economy has moved into a recession, the world's largest LPG producer (the US) has undergone a major change in political leadership, and crude oil prices have collapsed.

EnCana banking heavily on unconventional gas, oil

Jun 15, 2009 Unconventional gas and oil plays represent the future for EnCana Corp. and the North American oil and gas industry, EnCana said May 27.

Special Report: Simultaneous operations develop Piceance tight gas

Jun 8, 2009 Williams Exploration & Production in recent years has changed the way it is developing the tight gas sands in the Piceance basin of Western Colorado.

API opposes efforts to federally regulate hydraulic fracturing

Jun 8, 2009 Proposed federal regulation of hydraulic fracturing under the Safe Drinking Water Act could add $150,000 to deep-well costs and reduce drilling, American Petroleum Institute officials warned on June 3.

EIA global outlook sees more use of unconventional sources

Jun 1, 2009 Unconventional sources including biofuels could provide nearly half of the growth in global liquid fuel supplies during 2006-30, the US Energy Information Administration said on May 27 in its latest International Energy Outlook.

OGJ Newsletter

May 11, 2009

HYDRAULIC FRACTURING— Conclusion: Additional keys give stimulation insights

Apr 6, 2009 Four keys provide a way for understanding, modeling, and predicting shear stimulation and its benefits in naturally fractured reservoirs.

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