CNOOC Limited

TL;DR: In this article, eight black shale core samples were collected from a well drilled recently in the Chuandong Thrust Fold Belt, southwestern China, and their geochemistry and pore structures were investigated using low pressure N2 adsorption analysis and field emission scanning electron microscopy (FE-SEM) observations.

TL;DR: In this article, a unified model is established to describe gas-water-clay interactions, in which, gas-solid Langmuir equation and gas-liquid Gibbs equation are integrated by water coverage coefficient, and a mathematical model is presented to quantify thickness of water films by considering surface force interactions between liquid film and clay.

TL;DR: In this article, the history of global changes in temperature during the Phanerozoic has been summarized in a “paleotemperature timescale” that subdivides the many past climatic events into 8 major climate modes; each climate mode is made up of 3-4 pairs of warming and cooling episodes (chronotemps) and a detailed narrative describes how these past temperature events have been affected by geological processes such as the eruption of Large Igneous Provinces (LIPS) (warming) and bolide impacts (cooling).

TL;DR: In this paper, the authors examined the coal and gas samples collected from the Chang 7 (C7) and Chang 9 (C9) Members, Yanchang Formation in the southeastern Ordos Basin for geochemical, petrologic and gas content analysis.