Results 161 to 170 of about 3,987,478 (196)

Present-day in-situ stress field within the Yanchang Formation tight oil reservoir of Ordos Basin, central China

open access: yesJournal of Petroleum Science and Engineering, 2020
The present-day in-situ stress field has many important and practical applications during the exploration and development of hydrocarbon resources. The Ordos Basin is a significant petroliferous basin in China, within which, the Yanchang Formation serves
Geoff Wang, Wei Ju, Xiaobing Niu
exaly   +2 more sources

Origin of shale gas in the Triassic Yanchang Formation, Ordos Basin, China

Petroleum Science and Technology, 2017
The Chang 7 Member shale gas of the Upper Triassic Yanchang Formation, Ordos Basin, is a representative of continental shale gas in China.
Qiang Meng   +7 more
openaire   +1 more source

Origin and Geological Significance of the Cross Fractures in the Upper Triassic Yanchang Formation, Ordos Basin, China

open access: yesEnergy Exploration and Exploitation, 2010
Cross fractures are well developed in the Upper Triassic Yanchang Formation in the Ordos Basin. According to the data on outcrops and cores and to our mechanical experiments, the origin of these cross fractures is discussed and their influence on ...
Lianbo Zeng
exaly   +2 more sources

The influence of 18α(H)-neohopane on source rocks in Yanchang formation, Ordos basin

Petroleum Science and Technology, 2017
Rock extracts and oil samples has been detected high abundance of 18α(H)-neohopane fromYanchang Formation in Ordos Basin. The results showed that the black mudstone was deposited in anoxic condition of semi-deep or deep lacustrine facie has low abundance of 18α(H)-neohopane in Chang 7 member.
Jiang He   +6 more
openaire   +1 more source

Identification and distribution of fractures in the Zhangjiatan shale of the Mesozoic Yanchang Formation in Ordos Basin

Interpretation, 2017
The natural fractures in mud or shale directly affect the quality and efficiency of shale gas reservoirs, and fracture identification and prediction play an important role in drilling shale gas wells and making plans for reservoir stimulation. We adopted ant tracking technology for 3D poststack reflective seismic waves to identify the size and ...
Hui Shi   +9 more
openaire   +1 more source

Genesis of Fibrous Calcite in the Chang 7 Member of the Yanchang Formation, Ordos Basin, China

Acta Geologica Sinica - English Edition, 2023
AbstractTo explore the genesis of the laminated calcite veins developed in the black shale of Chang 73 submember of the Ordos Basin, the petrology, microstructure and geochemistry of calcite veins are studied using thin sections, fluid inclusions, trace elements and isotopic geochemistry.
Guanglin LIU   +7 more
openaire   +1 more source

Geochemical characteristics of the source rocks in Mesozoic Yanchang formation, central Ordos Basin

Journal of Earth Science, 2013
The shale of Yanchang Formation in Upper Triassic is the most important source rock for the Mesozoic petroleum reserviors in Ordos Basin. Chang 7 and Chang 4+5 members are the major source rock formation. Source rock samples, obtained from 22 cored wells in central Ordos Basin, were geochemically analyzed to determine the organic matter abundance ...
Senhu Lin   +4 more
openaire   +1 more source

Study on the Reservoir Characteristics of the Triassic Yanchang Formation in the Majiahe Area, Ordos Basin

Geological and Mining Engineering
This study thoroughly analyzes the petrological and physical properties of the Chang 4+5 and Chang 6 reservoirs of the Triassic Yanchang Formation in the Majiahe area of the Ordos Basin. The lithology in the study area is mainly composed of gray fine-grained feld-spathic sandstone, followed by medium to fine-grained and silt to fine-grained ...
Jiadong Ji, Guicheng Wang
openaire   +1 more source

Chemostratigraphic insights into fluvio-lacustrine deposition, Yanchang Formation, Upper Triassic, Ordos Basin, China

Interpretation, 2016
A chemostratigraphic study of a 300 m long core recovered from the southeastern central Ordos depocenter reveals thick ([Formula: see text]) intervals of fine-grained, organic-rich lacustrine strata, interpreted to represent deepwater deposition under meromictic conditions (incomplete watermass overturn) during lake highstand phases, interspersed with ...
Harry Rowe   +10 more
openaire   +1 more source

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