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Helge Hellevang
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Journal Article

Lamina-scale diagenetic mass transfer in lacustrine organic-rich shales and impacts on shale oil reservoir formation

Yingchang Cao, Kelai Xi, Xiaobing Niu, Miruo Lin, Weijiao Ma, Zehan Zhang, Helge Hellevang
Published: 01 July 2024
AAPG Bulletin (2024) 108 (7): 1327–1356.
DOI: https://doi.org/10.1306/12212323018
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Integration of diagenesis, porosity evolution, and oil emplacement in lacustrine tight sandstone reservoirs: A review with illustrative cases from the major oil-bearing basins in China

Kelai Xi, Yingchang Cao, Rukai Zhu, Honggang Xin, Weidong Dan, Helge Hellevang
Published: 01 April 2024
AAPG Bulletin (2024) 108 (4): 691–718.
DOI: https://doi.org/10.1306/12212322063
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Geochemical constraints on the origins of calcite cements and their impacts on reservoir heterogeneities: A case study on tight oil sandstones of the Upper Triassic Yanchang Formation, southwestern Ordos Basin, China

Kelai Xi, Yingchang Cao, Keyu Liu, Songtao Wu, Guanghui Yuan, Rukai Zhu, Yiwei Zhao, Helge Hellevang
Published: 15 October 2019
AAPG Bulletin (2019) 103 (10): 2447–2485.
DOI: https://doi.org/10.1306/01301918093
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