Results 11 to 20 of about 1,018 (170)
The complex tectonic deformation zone in the east of the Sichuan Basin has a great potential of shale-gas resources, but has not been commercially exploited yet.This paper utilizes the mineralogical, organic chemical, and petrologic data of the Wufeng ...
Fu Zhang +6 more
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Depositional environment of shale in Wufeng and Longmaxi Formations, Sichuan Basin
Formation of organic-rich shale was controlled by depositional processes and environment condition. According to petrology, mineralogy, fossil composition and sedimentary structure, seven lithofacies of shale were identified in the Wufeng Formation to ...
Jianhua Zhao +6 more
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Wufeng Formation shale is an important source rock of unconventional hydrocarbons in the Lower Paleozoic shales of Sichuan Basin. However, the study on its provenance and paleoclimate is still relatively limited.
Caiyuan Dong +5 more
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Accumulation condition for Wufeng-Longmaxi Formation shale gas of Yanjin-Gongxian area
The formation conditions of shale gas in Wufeng-Longmaxi Formation of Yanjin-Gongxian area were analyzed on the basis of field observation and experimental data,and then the main factors for shale gas accumulation were discussed.
LIANG Ping-ping +5 more
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Wave velocity in shale in the Wufeng-Longmaxi formation in Sichuan Basin
Abstract Analyzing the pattern of wave velocity is important for velocity prediction and amplitude-versus-offset analysis during unconventional seismic exploration. Several parameters, including the maturity and microstructure of organic matter (OM), the wave velocity, the mineral composition and the density of shale from Upper ...
Zichun Liu +6 more
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Organic Matter of the Wufeng–Longmaxi Formation Shales Using Scanning Electron Microscopy
Fine-grained organic matter (OM) particles are commonly widely dispersed in shale deposits. However, carrying out investigations of pores hosted by OM particles and the nature of grain interactions in OM particles and associated detrital grains using optical microscopy is difficult at best.
Jing Wang +3 more
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Based on stratigraphic variations of petrology, geochemistry (major, trace elements), and pyrite framboids, we study the sedimentary environment of siliceous rocks of the Wufeng Formation in Wuxi, Northeastern Chongqing, China. Coupled Al2O3/(Al2O3+Fe2O3)
Longbo Xu +3 more
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Water Distribution in the Ultra-Deep Shale of the Wufeng–Longmaxi Formations from the Sichuan Basin
Recently, deep and ultra-deep shales (depth >3500 m) of the Lower Paleozoic Wufeng–Longmaxi formations (WF–LMX) have become attractive targets for shale gas exploration and development in China, and their gas contents may be influenced by the occurrence of water to some extent.
Ping Gao +6 more
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The Upper Ordovician Wufeng to Lower Silurian Longmaxi formations are important exploration targets for shale gas in the western Hubei province. The lithology, sedimentary facies, gas-bearing characteristics and preservation conditions of the Wufeng ...
Lulu XU +8 more
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Geological difference and its significance of marine shale gases in South China
Organic-rich marine shales are developed in both the Cambrian Qiongzhusi Formation and the Ordovician Wufeng Formation–Silurian Longmaxi Formation in South China, but are different in the drilling results of shale gas exploration.
Wenzhi ZHAO +4 more
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