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Major deposits are located in the Volga-Petchyorsk province and in the Baltic Oil Shale Basin. Other major oil shale deposits in Europe are located in Italy (10.45 billion metric tons of shale oil), Estonia (2.49 billion metric tons of shale oil), France (1 billion metric tons of shale oil), Belarus (1 billion metric tons of shale oil), Sweden ...
A map of 48 shale basins in 38 countries, based on US Energy Information Administration data, 2011. This is a list of countries by recoverable shale gas based on data collected by the Energy Information Administration agency of the United States Department of Energy. [1]
Shale gas is an unconventional natural gas produced from shale, a type of sedimentary rock.Shale gas has become an increasingly important source of natural gas in the United States over the past decade, and interest has spread to potential gas shales in Canada, Europe, Asia, and Australia.
Location of the deposit on the map of France. The Autun oil shale deposit is a sedimentary basin containing oil shale of the Autunian age (between 299 and 282 million years old) in the vicinity of Autun in Saône-et-Loire, in the center-east of France. The extraction of the shale commenced in 1824 at Igornay.
Shale gas is one of a number of unconventional sources of natural gas; others include coalbed methane, tight sandstones, and methane hydrates. Shale gas areas are often known as resource plays [27] (as opposed to exploration plays). The geological risk of not finding gas is low in resource plays, but the potential profits per successful well ...
Larger map shows the locations of Messel primates 1–7 (Table 1) within the Messel oil shale excavation. The current surface of the Messel pit is roughly 60 m (200 ft) below the local land and is about 0.7 km 2 (0.27 sq mi) in area. The oil-shale bed originally extended to a depth of 190 m (620 ft).
A 1984 study estimated the EROI of the various known oil-shale deposits as varying between 0.7–13.3, [75] although known oil-shale extraction development projects assert an EROI between 3 and 10. According to the World Energy Outlook 2010, the EROI of ex-situ processing is typically 4 to 5 while of in-situ processing it may be even as low as 2.
An isopach map of the Ordovician graptolitic argillite deposits in northern Estonia, indicating thickness in meters In mainland Estonia, it occurs at the foot of the North-Estonia Klint , ranging from the Pakri Peninsula to Narva in an area covering about 11,000 square kilometres (4,200 sq mi).