Results 81 to 90 of about 286 (179)

Genesis of pore-fracture systems in shallow marine shale gas reservoirs and its significance for "sweet window" prediction: coupling constraints from dynamic and static gas accumulation elements

open access: yesShiyou shiyan dizhi
The shallow marine shale gas reservoirs in the Upper Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation of residual synclines in northern Guizhou have experienced episodic tectonic superimposed reformation.
Wei YANG   +8 more
doaj   +1 more source

Characteristics of organic pores and composition of bio-precursors in the Wufeng and Longmaxi Formation shales, Southern Sichuan Basin, China

open access: yesEnergy Exploration & Exploitation, 2018
Bio-precursors of organic matter, referring to formerly living precursors, can influence content and distribution of organic pores significantly. However, insufficient attention has been paid in previous studies.
Qian Pang   +7 more
doaj   +1 more source

Guanyinqiao Member lithofacies of the Upper Ordovician Wufeng Formation around the Sichuan Basin and the significance to shale gas plays, SW China

open access: yesPetroleum Exploration and Development, 2016
: The stratigraphic distribution and lithofacies features of the Guanyinqiao Member of the Upper Ordovician Wufeng Formation around the Sichuan Basin were studied based on the data of drilling, outcrops, rock minerals, geochemistry and logging.
Yuman WANG   +4 more
doaj   +1 more source

Distribution characteristics and geological significance of the thickest Aeronian bentonite bed in the Middle-Upper Yangtze Region, China

open access: yesJournal of Natural Gas Geoscience, 2018
Founded on the data deriving out of the outcrops and key exploratory wells, the distribution characteristics of the thickest bentonite layer of the Aeronian in the Middle-Upper Yangtze Region as well as its unique role in the geological evaluation of ...
Yuman Wang   +9 more
doaj   +1 more source

The relationship between helium-rich gas and regional shale in the Sichuan Basin, Southwest China

open access: yesFrontiers in Earth Science
Despite over 60 years of helium development in the Sichuan Basin, the mechanism of helium enrichment remains poorly understood. Helium-rich gas is primarily found as gas composition analysis in the fields.
Jianglin He   +18 more
doaj   +1 more source

Advantageous shale lithofacies of Wufeng Formation-Longmaxi Formation in Fuling gas field of Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2016
The lithofacies types of Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation shale, the main producing layer in Fuling gas field, are classified in detail using the modified ternary diagram of siliceous minerals-carbonates minerals-clay minerals.
Lanyu WU   +4 more
openaire   +2 more sources

Using nanoindentation to quantify the mechanical profile of the Wufeng–Longmaxi Formation in southwestern China: link to sedimentary conditions

open access: yesSolid Earth
Abstract. The fine construction of a continuous mechanical profile for the Wufeng–Longmaxi (WF-LMX) Formation is crucial for designing hydraulic fracturing projects in shale gas development, which however is generally difficult to achieve by conventional macroscopic mechanical testing methods due to the difficulty in obtaining continuous block shale ...
Wang, Jianfeng   +12 more
openaire   +2 more sources

Genesis and preservation mechanisms of deep shale gas overpressure in Wufeng-Longmaxi formations, southeastern Sichuan Basin

open access: yesShiyou shiyan dizhi
In recent years, significant progress has been made in deep to ultra-deep shale gas exploration of Wufeng-Longmaxi formations in southeastern Sichuan Basin.
Zhujiang LIU
doaj   +1 more source

Mineral compositional controls on the porosity of black shales from the Wufeng and Longmaxi Formations (Southern Sichuan Basin and its surroundings) and insights into shale diagenesis

open access: yesEnergy Exploration & Exploitation, 2018
The effects of brittle minerals in shale diagenesis on shale pores remain controversial and it is difficult to quantify directly. However, the relationship between brittle minerals and shale pores could provide indirect guidance regarding diagenesis ...
Mei Han   +6 more
doaj   +1 more source

Geological conditions and reservoir characteristics of various shales in major shale-hosted regions of China

open access: yesChina Geology
China is home to shales of three facies: Marine shale, continental shale, and marine-continental transitional shale. Different types of shale gas are associated with significantly different formation conditions and major controlling factors.
Shu-jing Bao   +8 more
doaj   +1 more source

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