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Geological characteristics and ‘‘sweet area’’ evaluation for tight oil

Tight oil has become the focus in exploration and development of unconventional oil in the world, especially in North America and China. In North America, there has been intensive exploration for tight oil in marine. In China, commercial exploration for tight oil in continental sediments is now steadily underway. With the discovery of China’s first tight oil field—Xin’anbian Oilfield in the Ordos Basin, tight oil has been integrated officially into the category for reserves evaluation.

Abstract Tight oil has become the focus in exploration and development of unconventional oil in the world, especially in North America and China. In North America, there has been intensive exploration for tight oil in marine. In China, commercial exploration for tight oil in continental sediments is now steadily underway. With

WHAT IS A SHALE?

Gray Shale rock from Vaca Muerta Formation, Neuquén, Argentina.

WHAT IS A SHALE? Author: Emanuel Martin Shale is a sedimentary clastic fine-grained rock rich in organic matter composed of silt and clay with the distinctive feature of break easily in thin layers. It belongs to the family of the mudrocks and although these are the 60% of the Earth’s crust just a

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