Subjects: Nuclear Science and Technology >> Radiation Physics and Technology submitted time 2024-04-09
Abstract： Background Element capture logging can be used to determine the elemental contents of rocks in formations. Purpose This study focused on the BY2 well, the inaugural parameter well for shale gas in the Cambrian Niutitang Formation of the Baojing Block, located in the Middle Yangtze region. The aim is to investigate the developmental and distributional characteristics of shale gas reservoirs in this formation. Methods By interpreting and processing elemental capture logging data, precise elemental compositions of the shale reservoirs were determined. This analysis led to the creation of a comprehensive geochemical index profile for the Niutitang Formation. Additionally, elemental geochemical indicators were used to identify and reconstruct the paleosedimentary environments. Results The analysis revealed that the predominant elements in the Niutitang Formation’s shale were Si, Al, and Fe, accompanied by lower amounts of K, Ca, Mg, and S. The shale featured relatively high concentrations of Si, Fe, and S, which contributed to its enhanced fracturing ability. The sedimentation process of this shale could be categorized as active continental margin sedimentation. The source material for the sedimentary rocks originated from the Kangdian ancient land, located in the northwest. The sedimentation was primarily normal but was influenced by the presence of hydrothermal fluids in the region’s active tectonic zone. Conclusions The upper section of the Niutitang formation was subject to a dry climate during its depositional period, featuring gentle slope sedimentation at the periphery of a stagnant basin and a lack of oxygen. High water salinity, ample land supply, and low water body paleoproductivity characterized this region. Conversely, the lower section experienced a humid climate and served as a deep-water retention basin. Here, the land supply was limited, but water salinity and paleoproductivity were high, leading to the accumulation of organic matter. The aquatic setting was primarily anaerobic, conditions that were conducive to the preservation of organic matter, and provided an optimal sedimentary environment for the generation and concentration of shale gas.
Peer Review Status:
Awaiting Review
Subjects: Library Science，Information Science >> Library Science submitted time 2023-05-23
Abstract： Purposes This paper explores the application of incorporating popular science into academic journals to shape and enhance the brand of journals, aiming to provide enlightenment and reference for the development of academic journals. Methods Taking "Journal of West China Forestry Science" as an example, this paper focuses on the innovation, high quality, characteristics and sustainable development of the journal brand. Findings By combining popular science elements with academia and art, optimizing the content system, resource aggregation and service-oriented characteristics in cooperation with the research team, creating regional, advanced and service-oriented features, and continuously promoting academic and social exchanges, content innovation and innovative development, the sustainable development of the journal has been successfully achieved. Conclusions Journals with high quality and good reputation have strong brand effects and far-reaching influence.
Peer Review Status:Awaiting Review
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