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shale

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shale

a dark fine-grained laminated sedimentary rock formed by compression of successive layers of clay-rich sediment
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

shale

[shāl]
(petrology)
A fine-grained laminated or fissile sedimentary rock made up of silt- or clay-size particles; generally consists of about one-third quartz, one-third clay materials, and one-third miscellaneous minerals, including carbonates, iron oxides, feldspars, and organic matter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

shale

Argillaceous sedimentary rock derived from clays or silts; typically thinly laminated and weak along planes; may be undesirable as a concrete aggregate.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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References in periodicals archive
Bakken wells exhibit the lowest breakeven price among the three shale plays at US$30.50 per barrel (bbl), mainly due to the exceptionally high 30-day initial production (IP) rates of over 1,250 boed observed in this play.
During the study, a detailed analysis of 124 wells was carried out, including laboratory analysis on Shale cores and cuttings in the United States.
This ongoing partnership will allow Shale Support and the Fracht Group to remain committed to the development of the Vaca Muerta Shale and will help to provide a long-term investment for the region.
After the deposits' identification, a dedicated Shale gas and oil center has been established at the Petroleum House to facilitate interested E and P companies to exploit the potential.
The Twelfth Five-Year Plan for the national economy and social development in China stated explicitly "to promote the exploitation and utilization of shale gas and other unconventional petroleum." On March 16th, 2012, the National Energy Administration issued the "Shale Gas Development Plan (2011-2015)" in which the government requested emphasis on the following strategies: 1.
Shale Support mines Delta Pearl from its properties in Picayune, Mississippi.
In 2015, a study completed in cooperation with the USAID had confirmed presence of 10,159 trillion cubic feet (TCF) shale gas and 2,323 billion of stock tank barrels (BSTB) shale oil in place resources.
The popularity of shale oil to the economies of OPEC members like Nigeria has increased considerably in recent years.
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