Results 31 to 40 of about 1,480 (171)

Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin

open access: yesJournal of Chemistry, 2022
Sedimentary microfacies refer to the smallest unit with unique rock structure, structure, thickness, rhythm, and other sedimentary characteristics and certain plane configuration rules in the subfacies zone. Sedimentary microfacies research is the most basic sedimentary unit formed in the same or basically the same sedimentary background.
Jiangwei Wei   +5 more
openaire   +2 more sources

Coupling relationship between sandstone reservoir densification and hydrocarbon accumulation: A case from the Yanchang Formation of the Xifeng and Ansai areas, Ordos Basin

open access: yesPetroleum Exploration and Development, 2014
The Chang 8 member of the Xifeng Area and the Chang 6 member of the Ansai Area are taken as examples to define the relationship between the sandstone densification and accumulation from fluid inclusion identification, simulation of sandstone porosity ...
Mingjie LIU   +5 more
doaj   +1 more source

Exploration potential of Chang 9 member, Yanchang Formation, Ordos Basin

open access: yesPetroleum Exploration and Development, 2008
New discoveries have been achieved in the exploration of the Yanchang Formation Chang 9 member. This article discusses the exploration potential of the Chang 9 member from the hydrocarbon source rock condition, reservoir condition, and the pattern of hydrocarbon generation and storage.
Jin-gao ZHOU   +6 more
openaire   +2 more sources

Influence of fractures in tight sandstone oil reservoir on hydrocarbon accumulation: A case study of Yanchang Formation in southeastern Ordos Basin

open access: yesOpen Geosciences, 2023
The southwestern Ordos Basin is located at the junction of several stable plates, where faults and fractures are relatively developed, and the influence of fractures on the distribution of tight oil reservoirs in the Yanchang Formation is not clear.
Zhang Zaiyu, Liu Weiwei, Wu Xiaodong
doaj   +1 more source

Genesis of the high gamma sandstone of the Yanchang Formation in the Ordos Basin, China: A reply [PDF]

open access: yesPetroleum Science, 2013
The authors of ‘Genesis of the high gamma sandstone of the Yanchang Formation in the Ordos Basin, China’ questioned the viewpoint that high-gamma-ray sandstone might be caused by homochronous sedimentary volcano tuff ash or previous tuff. The authors argued that the main reason for the high-gamma-ray sandstone should be from high Th and U contents in ...
Xiaoli Zhang   +5 more
openaire   +1 more source

Oil Accumulation Model and Its Main Controlling Factors in Lower Yanchang Formation, Wuqi-Dingbianarea, Ordos Basin, China

open access: yesGeofluids, 2021
Based on the studies of sedimentary facies, oil-source correlation, formation pressure structure, homogenization temperature of fluid inclusions, etc., the oil and gas accumulation model and main controlling factors in lower Yanchang Formation in Wuqi ...
Jintao Yin   +8 more
doaj   +1 more source

Hydrocarbon origin and reservoir forming model of the Lower Yanchang Formation, Ordos Basin

open access: yesPetroleum Exploration and Development, 2012
According to the comparison of biomarkers in source rocks and crude oil, fluid inclusion analysis, and basin modeling, this paper discusses the oil source, hydrocarbon accumulation period and reservoir forming model of the Chang 9 and Chang 10 oil-bearing formations, Yanchang Formation, Ordos Basin.
Xiangbo LI   +7 more
openaire   +3 more sources

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source

Thickening-upward cycles in deep-marine and deep-lacustrine turbidite lobes: examples from the Clare Basin and the Ordos Basin

open access: yesJournal of Palaeogeography, 2020
Deep-marine and deep-lacustrine reservoirs have been targets for conventional and unconventional oil and gas exploration and development for decades. Thickening-upward cycles in the deep-marine Carboniferous Ross Sandstone Formation outcrops in western ...
Lei-Fu Zhang, Da-Zhong Dong
doaj   +1 more source

Carbonate Concretions in Triassic Yanchang Formation (Ordos Basin, China) as Evidence of Hydrothermal Activity

open access: yesEnergies, 2023
The discovery of concretions of Chang 7 shale formations in the Ordos basin has increased interest in the exploration of lacustrine carbonate genesis in these basins.
Mengsi Sun, Congjun Feng, Chiyang Liu
doaj   +1 more source

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